~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/Documentation/sound/alsa-configuration.rst

Version: ~ [ linux-6.12-rc7 ] ~ [ linux-6.11.7 ] ~ [ linux-6.10.14 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.60 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.116 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.171 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.229 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.285 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.323 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.12 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /Documentation/sound/alsa-configuration.rst (Version linux-6.12-rc7) and /Documentation/sound/alsa-configuration.rst (Version linux-6.2.16)


  1 ==============================================      1 ==============================================================
  2 Advanced Linux Sound Architecture - Driver Con      2 Advanced Linux Sound Architecture - Driver Configuration guide
  3 ==============================================      3 ==============================================================
  4                                                     4 
  5                                                     5 
  6 Kernel Configuration                                6 Kernel Configuration
  7 ====================                                7 ====================
  8                                                     8 
  9 To enable ALSA support you need at least to bu      9 To enable ALSA support you need at least to build the kernel with
 10 primary sound card support (``CONFIG_SOUND``).     10 primary sound card support (``CONFIG_SOUND``).  Since ALSA can emulate
 11 OSS, you don't have to choose any of the OSS m     11 OSS, you don't have to choose any of the OSS modules.
 12                                                    12 
 13 Enable "OSS API emulation" (``CONFIG_SND_OSSEM     13 Enable "OSS API emulation" (``CONFIG_SND_OSSEMUL``) and both OSS mixer
 14 and PCM supports if you want to run OSS applic     14 and PCM supports if you want to run OSS applications with ALSA.
 15                                                    15 
 16 If you want to support the WaveTable functiona     16 If you want to support the WaveTable functionality on cards such as
 17 SB Live! then you need to enable "Sequencer su     17 SB Live! then you need to enable "Sequencer support"
 18 (``CONFIG_SND_SEQUENCER``).                        18 (``CONFIG_SND_SEQUENCER``).
 19                                                    19 
 20 To make ALSA debug messages more verbose, enab     20 To make ALSA debug messages more verbose, enable the "Verbose printk"
 21 and "Debug" options.  To check for memory leak     21 and "Debug" options.  To check for memory leaks, turn on "Debug memory"
 22 too.  "Debug detection" will add checks for th     22 too.  "Debug detection" will add checks for the detection of cards.
 23                                                    23 
 24 Please note that all the ALSA ISA drivers supp     24 Please note that all the ALSA ISA drivers support the Linux isapnp API
 25 (if the card supports ISA PnP).  You don't nee     25 (if the card supports ISA PnP).  You don't need to configure the cards
 26 using isapnptools.                                 26 using isapnptools.
 27                                                    27 
 28                                                    28 
 29 Module parameters                                  29 Module parameters
 30 =================                                  30 =================
 31                                                    31 
 32 The user can load modules with options. If the     32 The user can load modules with options. If the module supports more than
 33 one card and you have more than one card of th     33 one card and you have more than one card of the same type then you can
 34 specify multiple values for the option separat     34 specify multiple values for the option separated by commas.
 35                                                    35 
 36                                                    36 
 37 Module snd                                         37 Module snd
 38 ----------                                         38 ----------
 39                                                    39 
 40 The core ALSA module.  It is used by all ALSA      40 The core ALSA module.  It is used by all ALSA card drivers.
 41 It takes the following options which have glob     41 It takes the following options which have global effects.
 42                                                    42 
 43 major                                              43 major
 44     major number for sound driver;                 44     major number for sound driver;
 45     Default: 116                                   45     Default: 116
 46 cards_limit                                        46 cards_limit
 47     limiting card index for auto-loading (1-8)     47     limiting card index for auto-loading (1-8);
 48     Default: 1;                                    48     Default: 1;
 49     For auto-loading more than one card, speci     49     For auto-loading more than one card, specify this option
 50     together with snd-card-X aliases.              50     together with snd-card-X aliases.
 51 slots                                              51 slots
 52     Reserve the slot index for the given drive     52     Reserve the slot index for the given driver;
 53     This option takes multiple strings.            53     This option takes multiple strings.
 54     See `Module Autoloading Support`_ section      54     See `Module Autoloading Support`_ section for details.
 55 debug                                              55 debug
 56     Specifies the debug message level;             56     Specifies the debug message level;
 57     (0 = disable debug prints, 1 = normal debu     57     (0 = disable debug prints, 1 = normal debug messages,
 58     2 = verbose debug messages);                   58     2 = verbose debug messages);
 59     This option appears only when ``CONFIG_SND     59     This option appears only when ``CONFIG_SND_DEBUG=y``.
 60     This option can be dynamically changed via     60     This option can be dynamically changed via sysfs
 61     /sys/modules/snd/parameters/debug file.        61     /sys/modules/snd/parameters/debug file.
 62                                                    62   
 63 Module snd-pcm-oss                                 63 Module snd-pcm-oss
 64 ------------------                                 64 ------------------
 65                                                    65 
 66 The PCM OSS emulation module.                      66 The PCM OSS emulation module.
 67 This module takes options which change the map     67 This module takes options which change the mapping of devices.
 68                                                    68 
 69 dsp_map                                            69 dsp_map
 70     PCM device number maps assigned to the 1st     70     PCM device number maps assigned to the 1st OSS device;
 71     Default: 0                                     71     Default: 0
 72 adsp_map                                           72 adsp_map
 73     PCM device number maps assigned to the 2nd !!  73     PCM device number maps assigned to the 2st OSS device;
 74     Default: 1                                     74     Default: 1
 75 nonblock_open                                      75 nonblock_open
 76     Don't block opening busy PCM devices;          76     Don't block opening busy PCM devices;
 77     Default: 1                                     77     Default: 1
 78                                                    78 
 79 For example, when ``dsp_map=2``, /dev/dsp will     79 For example, when ``dsp_map=2``, /dev/dsp will be mapped to PCM #2 of
 80 the card #0.  Similarly, when ``adsp_map=0``,      80 the card #0.  Similarly, when ``adsp_map=0``, /dev/adsp will be mapped
 81 to PCM #0 of the card #0.                          81 to PCM #0 of the card #0.
 82 For changing the second or later card, specify     82 For changing the second or later card, specify the option with
 83 commas, such like ``dsp_map=0,1``.                 83 commas, such like ``dsp_map=0,1``.
 84                                                    84 
 85 ``nonblock_open`` option is used to change the     85 ``nonblock_open`` option is used to change the behavior of the PCM
 86 regarding opening the device.  When this optio     86 regarding opening the device.  When this option is non-zero,
 87 opening a busy OSS PCM device won't be blocked     87 opening a busy OSS PCM device won't be blocked but return
 88 immediately with EAGAIN (just like O_NONBLOCK      88 immediately with EAGAIN (just like O_NONBLOCK flag).
 89                                                    89     
 90 Module snd-rawmidi                                 90 Module snd-rawmidi
 91 ------------------                                 91 ------------------
 92                                                    92 
 93 This module takes options which change the map     93 This module takes options which change the mapping of devices.
 94 similar to those of the snd-pcm-oss module.        94 similar to those of the snd-pcm-oss module.
 95                                                    95 
 96 midi_map                                           96 midi_map
 97     MIDI device number maps assigned to the 1s     97     MIDI device number maps assigned to the 1st OSS device;
 98     Default: 0                                     98     Default: 0
 99 amidi_map                                          99 amidi_map
100     MIDI device number maps assigned to the 2n !! 100     MIDI device number maps assigned to the 2st OSS device;
101     Default: 1                                    101     Default: 1
102                                                   102 
103 Module snd-soc-core                               103 Module snd-soc-core
104 -------------------                               104 -------------------
105                                                   105 
106 The soc core module. It is used by all ALSA ca    106 The soc core module. It is used by all ALSA card drivers.
107 It takes the following options which have glob    107 It takes the following options which have global effects.
108                                                   108 
109 prealloc_buffer_size_kbytes                       109 prealloc_buffer_size_kbytes
110     Specify prealloc buffer size in kbytes (de    110     Specify prealloc buffer size in kbytes (default: 512).
111                                                   111 
112 Common parameters for top sound card modules      112 Common parameters for top sound card modules
113 --------------------------------------------      113 --------------------------------------------
114                                                   114 
115 Each of top level sound card module takes the     115 Each of top level sound card module takes the following options.
116                                                   116 
117 index                                             117 index
118     index (slot #) of sound card;                 118     index (slot #) of sound card;
119     Values: 0 through 31 or negative;             119     Values: 0 through 31 or negative;
120     If nonnegative, assign that index number;     120     If nonnegative, assign that index number;
121     if negative, interpret as a bitmask of per    121     if negative, interpret as a bitmask of permissible indices;
122     the first free permitted index is assigned    122     the first free permitted index is assigned;
123     Default: -1                                   123     Default: -1
124 id                                                124 id
125     card ID (identifier or name);                 125     card ID (identifier or name);
126     Can be up to 15 characters long;              126     Can be up to 15 characters long;
127     Default: the card type;                       127     Default: the card type;
128     A directory by this name is created under     128     A directory by this name is created under /proc/asound/
129     containing information about the card;        129     containing information about the card;
130     This ID can be used instead of the index n    130     This ID can be used instead of the index number in
131     identifying the card                          131     identifying the card
132 enable                                            132 enable
133     enable card;                                  133     enable card;
134     Default: enabled, for PCI and ISA PnP card    134     Default: enabled, for PCI and ISA PnP cards
135                                                   135 
136 These options are used for either specifying t << 
137 controlling enabling and disabling of each one << 
138 are multiple devices bound with the same drive << 
139 many machines which have two HD-audio controll << 
140 audio and another for onboard analog). In most << 
141 in primary usage, and people would like to ass << 
142 appearing card. They can do it by specifying " << 
143 parameter, which will swap the assignment slot << 
144                                                << 
145 Today, with the sound backend like PulseAudio  << 
146 supports dynamic configuration, it's of little << 
147 help for static configuration in the past.     << 
148                                                << 
149 Module snd-adlib                                  136 Module snd-adlib
150 ----------------                                  137 ----------------
151                                                   138 
152 Module for AdLib FM cards.                        139 Module for AdLib FM cards.
153                                                   140 
154 port                                              141 port
155     port # for OPL chip                           142     port # for OPL chip
156                                                   143 
157 This module supports multiple cards. It does n    144 This module supports multiple cards. It does not support autoprobe, so
158 the port must be specified. For actual AdLib F    145 the port must be specified. For actual AdLib FM cards it will be 0x388.
159 Note that this card does not have PCM support     146 Note that this card does not have PCM support and no mixer; only FM
160 synthesis.                                        147 synthesis.
161                                                   148 
162 Make sure you have ``sbiload`` from the alsa-t    149 Make sure you have ``sbiload`` from the alsa-tools package available and,
163 after loading the module, find out the assigne    150 after loading the module, find out the assigned ALSA sequencer port
164 number through ``sbiload -l``.                    151 number through ``sbiload -l``.
165                                                   152 
166 Example output:                                   153 Example output:
167 ::                                                154 ::
168                                                   155 
169       Port     Client name                        156       Port     Client name                       Port name
170       64:0     OPL2 FM synth                      157       64:0     OPL2 FM synth                     OPL2 FM Port
171                                                   158 
172 Load the ``std.sb`` and ``drums.sb`` patches a    159 Load the ``std.sb`` and ``drums.sb`` patches also supplied by ``sbiload``:
173 ::                                                160 ::
174                                                   161 
175       sbiload -p 64:0 std.sb drums.sb             162       sbiload -p 64:0 std.sb drums.sb
176                                                   163 
177 If you use this driver to drive an OPL3, you c    164 If you use this driver to drive an OPL3, you can use ``std.o3`` and ``drums.o3``
178 instead. To have the card produce sound, use `    165 instead. To have the card produce sound, use ``aplaymidi`` from alsa-utils:
179 ::                                                166 ::
180                                                   167 
181       aplaymidi -p 64:0 foo.mid                   168       aplaymidi -p 64:0 foo.mid
182                                                   169 
183 Module snd-ad1816a                                170 Module snd-ad1816a
184 ------------------                                171 ------------------
185                                                   172 
186 Module for sound cards based on Analog Devices    173 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
187                                                   174 
188 clockfreq                                         175 clockfreq
189     Clock frequency for AD1816A chip (default     176     Clock frequency for AD1816A chip (default = 0, 33000Hz)
190                                                   177     
191 This module supports multiple cards, autoprobe    178 This module supports multiple cards, autoprobe and PnP.
192                                                   179     
193 Module snd-ad1848                                 180 Module snd-ad1848
194 -----------------                                 181 -----------------
195                                                   182 
196 Module for sound cards based on AD1848/AD1847/    183 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
197                                                   184 
198 port                                              185 port
199     port # for AD1848 chip                        186     port # for AD1848 chip
200 irq                                               187 irq
201     IRQ # for AD1848  chip                        188     IRQ # for AD1848  chip
202 dma1                                              189 dma1
203     DMA # for AD1848 chip (0,1,3)                 190     DMA # for AD1848 chip (0,1,3)
204                                                   191     
205 This module supports multiple cards.  It does     192 This module supports multiple cards.  It does not support autoprobe
206 thus main port must be specified!!! Other port    193 thus main port must be specified!!! Other ports are optional.
207                                                   194     
208 The power-management is supported.                195 The power-management is supported.
209                                                   196 
210 Module snd-ad1889                                 197 Module snd-ad1889
211 -----------------                                 198 -----------------
212                                                   199 
213 Module for Analog Devices AD1889 chips.           200 Module for Analog Devices AD1889 chips.
214                                                   201 
215 ac97_quirk                                        202 ac97_quirk
216     AC'97 workaround for strange hardware;        203     AC'97 workaround for strange hardware;
217     See the description of intel8x0 module for    204     See the description of intel8x0 module for details.
218                                                   205 
219 This module supports multiple cards.              206 This module supports multiple cards.
220                                                   207 
221 Module snd-ali5451                                208 Module snd-ali5451
222 ------------------                                209 ------------------
223                                                   210 
224 Module for ALi M5451 PCI chip.                    211 Module for ALi M5451 PCI chip.
225                                                   212 
226 pcm_channels                                      213 pcm_channels
227     Number of hardware channels assigned for P    214     Number of hardware channels assigned for PCM
228 spdif                                             215 spdif
229     Support SPDIF I/O;                            216     Support SPDIF I/O;
230     Default: disabled                             217     Default: disabled
231                                                   218 
232 This module supports one chip and autoprobe.      219 This module supports one chip and autoprobe.
233                                                   220 
234 The power-management is supported.                221 The power-management is supported.
235                                                   222 
236 Module snd-als100                                 223 Module snd-als100
237 -----------------                                 224 -----------------
238                                                   225 
239 Module for sound cards based on Avance Logic A    226 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
240                                                   227 
241 This module supports multiple cards, autoprobe    228 This module supports multiple cards, autoprobe and PnP.
242                                                   229 
243 The power-management is supported.                230 The power-management is supported.
244                                                   231 
245 Module snd-als300                                 232 Module snd-als300
246 -----------------                                 233 -----------------
247                                                   234 
248 Module for Avance Logic ALS300 and ALS300+        235 Module for Avance Logic ALS300 and ALS300+
249                                                   236 
250 This module supports multiple cards.              237 This module supports multiple cards.
251                                                   238 
252 The power-management is supported.                239 The power-management is supported.
253                                                   240 
254 Module snd-als4000                                241 Module snd-als4000
255 ------------------                                242 ------------------
256                                                   243 
257 Module for sound cards based on Avance Logic A    244 Module for sound cards based on Avance Logic ALS4000 PCI chip.
258                                                   245 
259 joystick_port                                     246 joystick_port
260     port # for legacy joystick support;           247     port # for legacy joystick support;
261     0 = disabled (default), 1 = auto-detect       248     0 = disabled (default), 1 = auto-detect
262                                                   249     
263 This module supports multiple cards, autoprobe    250 This module supports multiple cards, autoprobe and PnP.
264                                                   251 
265 The power-management is supported.                252 The power-management is supported.
266                                                   253 
267 Module snd-asihpi                                 254 Module snd-asihpi
268 -----------------                                 255 -----------------
269                                                   256 
270 Module for AudioScience ASI soundcards            257 Module for AudioScience ASI soundcards
271                                                   258 
272 enable_hpi_hwdep                                  259 enable_hpi_hwdep
273     enable HPI hwdep for AudioScience soundcar    260     enable HPI hwdep for AudioScience soundcard
274                                                   261 
275 This module supports multiple cards.              262 This module supports multiple cards.
276 The driver requires the firmware loader suppor    263 The driver requires the firmware loader support on kernel.
277                                                   264 
278 Module snd-atiixp                                 265 Module snd-atiixp
279 -----------------                                 266 -----------------
280                                                   267 
281 Module for ATI IXP 150/200/250/400 AC97 contro    268 Module for ATI IXP 150/200/250/400 AC97 controllers.
282                                                   269 
283 ac97_clock                                        270 ac97_clock
284     AC'97 clock (default = 48000)                 271     AC'97 clock (default = 48000)
285 ac97_quirk                                        272 ac97_quirk
286     AC'97 workaround for strange hardware;        273     AC'97 workaround for strange hardware;
287     See `AC97 Quirk Option`_ section below.       274     See `AC97 Quirk Option`_ section below.
288 ac97_codec                                        275 ac97_codec
289     Workaround to specify which AC'97 codec in    276     Workaround to specify which AC'97 codec instead of probing.
290     If this works for you file a bug with your    277     If this works for you file a bug with your `lspci -vn` output.
291     (-2 = Force probing, -1 = Default behavior    278     (-2 = Force probing, -1 = Default behavior, 0-2 = Use the
292     specified codec.)                             279     specified codec.)
293 spdif_aclink                                      280 spdif_aclink
294     S/PDIF transfer over AC-link (default = 1)    281     S/PDIF transfer over AC-link (default = 1)
295                                                   282 
296 This module supports one card and autoprobe.      283 This module supports one card and autoprobe.
297                                                   284 
298 ATI IXP has two different methods to control S    285 ATI IXP has two different methods to control SPDIF output.  One is
299 over AC-link and another is over the "direct"     286 over AC-link and another is over the "direct" SPDIF output.  The
300 implementation depends on the motherboard, and    287 implementation depends on the motherboard, and you'll need to
301 choose the correct one via spdif_aclink module    288 choose the correct one via spdif_aclink module option.
302                                                   289 
303 The power-management is supported.                290 The power-management is supported.
304                                                   291 
305 Module snd-atiixp-modem                           292 Module snd-atiixp-modem
306 -----------------------                           293 -----------------------
307                                                   294 
308 Module for ATI IXP 150/200/250 AC97 modem cont    295 Module for ATI IXP 150/200/250 AC97 modem controllers.
309                                                   296 
310 This module supports one card and autoprobe.      297 This module supports one card and autoprobe.
311                                                   298 
312 Note: The default index value of this module i    299 Note: The default index value of this module is -2, i.e. the first
313 slot is excluded.                                 300 slot is excluded.
314                                                   301 
315 The power-management is supported.                302 The power-management is supported.
316                                                   303 
317 Module snd-au8810, snd-au8820, snd-au8830         304 Module snd-au8810, snd-au8820, snd-au8830
318 -----------------------------------------         305 -----------------------------------------
319                                                   306 
320 Module for Aureal Vortex, Vortex2 and Advantag    307 Module for Aureal Vortex, Vortex2 and Advantage device.
321                                                   308 
322 pcifix                                            309 pcifix
323     Control PCI workarounds;                      310     Control PCI workarounds;
324     0 = Disable all workarounds,                  311     0 = Disable all workarounds,
325     1 = Force the PCI latency of the Aureal ca    312     1 = Force the PCI latency of the Aureal card to 0xff,
326     2 = Force the Extend PCI#2 Internal Master    313     2 = Force the Extend PCI#2 Internal Master for Efficient
327     Handling of Dummy Requests on the VIA KT13    314     Handling of Dummy Requests on the VIA KT133 AGP Bridge,
328     3 = Force both settings,                      315     3 = Force both settings,
329     255 = Autodetect what is required (default    316     255 = Autodetect what is required (default)
330                                                   317 
331 This module supports all ADB PCM channels, ac9    318 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
332 EQ, mpu401, gameport. A3D and wavetable suppor    319 EQ, mpu401, gameport. A3D and wavetable support are still in development.
333 Development and reverse engineering work is be    320 Development and reverse engineering work is being coordinated at
334 https://savannah.nongnu.org/projects/openvorte    321 https://savannah.nongnu.org/projects/openvortex/
335 SPDIF output has a copy of the AC97 codec outp    322 SPDIF output has a copy of the AC97 codec output, unless you use the
336 ``spdif`` pcm device, which allows raw data pa    323 ``spdif`` pcm device, which allows raw data passthru.
337 The hardware EQ hardware and SPDIF is only pre    324 The hardware EQ hardware and SPDIF is only present in the Vortex2 and 
338 Advantage.                                        325 Advantage.
339                                                   326 
340 Note: Some ALSA mixer applications don't handl    327 Note: Some ALSA mixer applications don't handle the SPDIF sample rate 
341 control correctly. If you have problems regard    328 control correctly. If you have problems regarding this, try
342 another ALSA compliant mixer (alsamixer works)    329 another ALSA compliant mixer (alsamixer works).
343                                                   330 
344 Module snd-azt1605                                331 Module snd-azt1605
345 ------------------                                332 ------------------
346                                                   333 
347 Module for Aztech Sound Galaxy soundcards base    334 Module for Aztech Sound Galaxy soundcards based on the Aztech AZT1605
348 chipset.                                          335 chipset.
349                                                   336 
350 port                                              337 port
351     port # for BASE (0x220,0x240,0x260,0x280)     338     port # for BASE (0x220,0x240,0x260,0x280)
352 wss_port                                          339 wss_port
353     port # for WSS (0x530,0x604,0xe80,0xf40)      340     port # for WSS (0x530,0x604,0xe80,0xf40)
354 irq                                               341 irq
355     IRQ # for WSS (7,9,10,11)                     342     IRQ # for WSS (7,9,10,11)
356 dma1                                              343 dma1
357     DMA # for WSS playback (0,1,3)                344     DMA # for WSS playback (0,1,3)
358 dma2                                              345 dma2
359     DMA # for WSS capture (0,1), -1 = disabled    346     DMA # for WSS capture (0,1), -1 = disabled (default)
360 mpu_port                                          347 mpu_port
361     port # for MPU-401 UART (0x300,0x330), -1     348     port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
362 mpu_irq                                           349 mpu_irq
363     IRQ # for MPU-401 UART (3,5,7,9), -1 = dis    350     IRQ # for MPU-401 UART (3,5,7,9), -1 = disabled (default)
364 fm_port                                           351 fm_port
365     port # for OPL3 (0x388), -1 = disabled (de    352     port # for OPL3 (0x388), -1 = disabled (default)
366                                                   353 
367 This module supports multiple cards. It does n    354 This module supports multiple cards. It does not support autoprobe:
368 ``port``, ``wss_port``, ``irq`` and ``dma1`` h    355 ``port``, ``wss_port``, ``irq`` and ``dma1`` have to be specified.
369 The other values are optional.                    356 The other values are optional.
370                                                   357 
371 ``port`` needs to match the BASE ADDRESS jumpe    358 ``port`` needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
372 or the value stored in the card's EEPROM for c    359 or the value stored in the card's EEPROM for cards that have an EEPROM and
373 their "CONFIG MODE" jumper set to "EEPROM SETT    360 their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
374 be chosen freely from the options enumerated a    361 be chosen freely from the options enumerated above.
375                                                   362 
376 If ``dma2`` is specified and different from ``    363 If ``dma2`` is specified and different from ``dma1``, the card will operate in
377 full-duplex mode. When ``dma1=3``, only ``dma2    364 full-duplex mode. When ``dma1=3``, only ``dma2=0`` is valid and the only way to
378 enable capture since only channels 0 and 1 are    365 enable capture since only channels 0 and 1 are available for capture.
379                                                   366 
380 Generic settings are ``port=0x220 wss_port=0x5    367 Generic settings are ``port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
381 mpu_port=0x330 mpu_irq=9 fm_port=0x388``.         368 mpu_port=0x330 mpu_irq=9 fm_port=0x388``.
382                                                   369 
383 Whatever IRQ and DMA channels you pick, be sur    370 Whatever IRQ and DMA channels you pick, be sure to reserve them for
384 legacy ISA in your BIOS.                          371 legacy ISA in your BIOS.
385                                                   372 
386 Module snd-azt2316                                373 Module snd-azt2316
387 ------------------                                374 ------------------
388                                                   375 
389 Module for Aztech Sound Galaxy soundcards base    376 Module for Aztech Sound Galaxy soundcards based on the Aztech AZT2316
390 chipset.                                          377 chipset.
391                                                   378 
392 port                                              379 port
393     port # for BASE (0x220,0x240,0x260,0x280)     380     port # for BASE (0x220,0x240,0x260,0x280)
394 wss_port                                          381 wss_port
395     port # for WSS (0x530,0x604,0xe80,0xf40)      382     port # for WSS (0x530,0x604,0xe80,0xf40)
396 irq                                               383 irq
397     IRQ # for WSS (7,9,10,11)                     384     IRQ # for WSS (7,9,10,11)
398 dma1                                              385 dma1
399     DMA # for WSS playback (0,1,3)                386     DMA # for WSS playback (0,1,3)
400 dma2                                              387 dma2
401     DMA # for WSS capture (0,1), -1 = disabled    388     DMA # for WSS capture (0,1), -1 = disabled (default)
402 mpu_port                                          389 mpu_port
403     port # for MPU-401 UART (0x300,0x330), -1     390     port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
404 mpu_irq                                           391 mpu_irq
405     IRQ # for MPU-401 UART (5,7,9,10), -1 = di    392     IRQ # for MPU-401 UART (5,7,9,10), -1 = disabled (default)
406 fm_port                                           393 fm_port
407     port # for OPL3 (0x388), -1 = disabled (de    394     port # for OPL3 (0x388), -1 = disabled (default)
408                                                   395 
409 This module supports multiple cards. It does n    396 This module supports multiple cards. It does not support autoprobe:
410 ``port``, ``wss_port``, ``irq`` and ``dma1`` h    397 ``port``, ``wss_port``, ``irq`` and ``dma1`` have to be specified.
411 The other values are optional.                    398 The other values are optional.
412                                                   399 
413 ``port`` needs to match the BASE ADDRESS jumpe    400 ``port`` needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
414 or the value stored in the card's EEPROM for c    401 or the value stored in the card's EEPROM for cards that have an EEPROM and
415 their "CONFIG MODE" jumper set to "EEPROM SETT    402 their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
416 be chosen freely from the options enumerated a    403 be chosen freely from the options enumerated above.
417                                                   404 
418 If ``dma2`` is specified and different from ``    405 If ``dma2`` is specified and different from ``dma1``, the card will operate in
419 full-duplex mode. When ``dma1=3``, only ``dma2    406 full-duplex mode. When ``dma1=3``, only ``dma2=0`` is valid and the only way to
420 enable capture since only channels 0 and 1 are    407 enable capture since only channels 0 and 1 are available for capture.
421                                                   408 
422 Generic settings are ``port=0x220 wss_port=0x5    409 Generic settings are ``port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
423 mpu_port=0x330 mpu_irq=9 fm_port=0x388``.         410 mpu_port=0x330 mpu_irq=9 fm_port=0x388``.
424                                                   411 
425 Whatever IRQ and DMA channels you pick, be sur    412 Whatever IRQ and DMA channels you pick, be sure to reserve them for
426 legacy ISA in your BIOS.                          413 legacy ISA in your BIOS.
427                                                   414 
428 Module snd-aw2                                    415 Module snd-aw2
429 --------------                                    416 --------------
430                                                   417 
431 Module for Audiowerk2 sound card                  418 Module for Audiowerk2 sound card
432                                                   419 
433 This module supports multiple cards.              420 This module supports multiple cards.
434                                                   421 
435 Module snd-azt2320                                422 Module snd-azt2320
436 ------------------                                423 ------------------
437                                                   424 
438 Module for sound cards based on Aztech System     425 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
439                                                   426 
440 This module supports multiple cards, PnP and a    427 This module supports multiple cards, PnP and autoprobe.
441                                                   428 
442 The power-management is supported.                429 The power-management is supported.
443                                                   430 
444 Module snd-azt3328                                431 Module snd-azt3328
445 ------------------                                432 ------------------
446                                                   433 
447 Module for sound cards based on Aztech AZF3328    434 Module for sound cards based on Aztech AZF3328 PCI chip.
448                                                   435 
449 joystick                                          436 joystick
450     Enable joystick (default off)                 437     Enable joystick (default off)
451                                                   438 
452 This module supports multiple cards.              439 This module supports multiple cards.
453                                                   440 
454 Module snd-bt87x                                  441 Module snd-bt87x
455 ----------------                                  442 ----------------
456                                                   443 
457 Module for video cards based on Bt87x chips.      444 Module for video cards based on Bt87x chips.
458                                                   445 
459 digital_rate                                      446 digital_rate
460     Override the default digital rate (Hz)        447     Override the default digital rate (Hz)
461 load_all                                          448 load_all
462     Load the driver even if the card model isn    449     Load the driver even if the card model isn't known
463                                                   450 
464 This module supports multiple cards.              451 This module supports multiple cards.
465                                                   452 
466 Note: The default index value of this module i    453 Note: The default index value of this module is -2, i.e. the first
467 slot is excluded.                                 454 slot is excluded.
468                                                   455 
469 Module snd-ca0106                                 456 Module snd-ca0106
470 -----------------                                 457 -----------------
471                                                   458 
472 Module for Creative Audigy LS and SB Live 24bi    459 Module for Creative Audigy LS and SB Live 24bit
473                                                   460 
474 This module supports multiple cards.              461 This module supports multiple cards.
475                                                   462 
476                                                   463 
477 Module snd-cmi8330                                464 Module snd-cmi8330
478 ------------------                                465 ------------------
479                                                   466 
480 Module for sound cards based on C-Media CMI833    467 Module for sound cards based on C-Media CMI8330 ISA chips.
481                                                   468 
482 isapnp                                            469 isapnp
483     ISA PnP detection - 0 = disable, 1 = enabl    470     ISA PnP detection - 0 = disable, 1 = enable (default)
484                                                   471 
485 with ``isapnp=0``, the following options are a    472 with ``isapnp=0``, the following options are available:
486                                                   473 
487 wssport                                           474 wssport
488     port # for CMI8330 chip (WSS)                 475     port # for CMI8330 chip (WSS)
489 wssirq                                            476 wssirq
490     IRQ # for CMI8330 chip (WSS)                  477     IRQ # for CMI8330 chip (WSS)
491 wssdma                                            478 wssdma
492     first DMA # for CMI8330 chip (WSS)            479     first DMA # for CMI8330 chip (WSS)
493 sbport                                            480 sbport
494     port # for CMI8330 chip (SB16)                481     port # for CMI8330 chip (SB16)
495 sbirq                                             482 sbirq
496     IRQ # for CMI8330 chip (SB16)                 483     IRQ # for CMI8330 chip (SB16)
497 sbdma8                                            484 sbdma8
498     8bit DMA # for CMI8330 chip (SB16)            485     8bit DMA # for CMI8330 chip (SB16)
499 sbdma16                                           486 sbdma16
500     16bit DMA # for CMI8330 chip (SB16)           487     16bit DMA # for CMI8330 chip (SB16)
501 fmport                                            488 fmport
502     (optional) OPL3 I/O port                      489     (optional) OPL3 I/O port
503 mpuport                                           490 mpuport
504     (optional) MPU401 I/O port                    491     (optional) MPU401 I/O port
505 mpuirq                                            492 mpuirq
506     (optional) MPU401 irq #                       493     (optional) MPU401 irq #
507                                                   494 
508 This module supports multiple cards and autopr    495 This module supports multiple cards and autoprobe.
509                                                   496 
510 The power-management is supported.                497 The power-management is supported.
511                                                   498 
512 Module snd-cmipci                                 499 Module snd-cmipci
513 -----------------                                 500 -----------------
514                                                   501 
515 Module for C-Media CMI8338/8738/8768/8770 PCI     502 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
516                                                   503 
517 mpu_port                                          504 mpu_port
518     port address of MIDI interface (8338 only)    505     port address of MIDI interface (8338 only):
519     0x300,0x310,0x320,0x330 = legacy port,        506     0x300,0x310,0x320,0x330 = legacy port,
520     1 = integrated PCI port (default on 8738),    507     1 = integrated PCI port (default on 8738),
521     0 = disable                                   508     0 = disable
522 fm_port                                           509 fm_port
523     port address of OPL-3 FM synthesizer (8x38    510     port address of OPL-3 FM synthesizer (8x38 only):
524     0x388 = legacy port,                          511     0x388 = legacy port,
525     1 = integrated PCI port (default on 8738),    512     1 = integrated PCI port (default on 8738),
526     0 = disable                                   513     0 = disable
527 soft_ac3                                          514 soft_ac3
528     Software-conversion of raw SPDIF packets (    515     Software-conversion of raw SPDIF packets (model 033 only) (default = 1)
529 joystick_port                                     516 joystick_port
530     Joystick port address (0 = disable, 1 = au    517     Joystick port address (0 = disable, 1 = auto-detect)
531                                                   518 
532 This module supports autoprobe and multiple ca    519 This module supports autoprobe and multiple cards.
533                                                   520 
534 The power-management is supported.                521 The power-management is supported.
535                                                   522 
536 Module snd-cs4231                                 523 Module snd-cs4231
537 -----------------                                 524 -----------------
538                                                   525 
539 Module for sound cards based on CS4231 ISA chi    526 Module for sound cards based on CS4231 ISA chips.
540                                                   527 
541 port                                              528 port
542     port # for CS4231 chip                        529     port # for CS4231 chip
543 mpu_port                                          530 mpu_port
544     port # for MPU-401 UART (optional), -1 = d    531     port # for MPU-401 UART (optional), -1 = disable
545 irq                                               532 irq
546     IRQ # for CS4231 chip                         533     IRQ # for CS4231 chip
547 mpu_irq                                           534 mpu_irq
548     IRQ # for MPU-401 UART                        535     IRQ # for MPU-401 UART
549 dma1                                              536 dma1
550     first DMA # for CS4231 chip                   537     first DMA # for CS4231 chip
551 dma2                                              538 dma2
552     second DMA # for CS4231 chip                  539     second DMA # for CS4231 chip
553                                                   540 
554 This module supports multiple cards. This modu    541 This module supports multiple cards. This module does not support autoprobe
555 thus main port must be specified!!! Other port    542 thus main port must be specified!!! Other ports are optional.
556                                                   543 
557 The power-management is supported.                544 The power-management is supported.
558                                                   545 
559 Module snd-cs4236                                 546 Module snd-cs4236
560 -----------------                                 547 -----------------
561                                                   548 
562 Module for sound cards based on CS4232/CS4232A    549 Module for sound cards based on CS4232/CS4232A,
563 CS4235/CS4236/CS4236B/CS4237B/CS4238B/CS4239 I    550 CS4235/CS4236/CS4236B/CS4237B/CS4238B/CS4239 ISA chips.
564                                                   551 
565 isapnp                                            552 isapnp
566     ISA PnP detection - 0 = disable, 1 = enabl    553     ISA PnP detection - 0 = disable, 1 = enable (default)
567                                                   554 
568 with ``isapnp=0``, the following options are a    555 with ``isapnp=0``, the following options are available:
569                                                   556 
570 port                                              557 port
571     port # for CS4236 chip (PnP setup - 0x534)    558     port # for CS4236 chip (PnP setup - 0x534)
572 cport                                             559 cport
573     control port # for CS4236 chip (PnP setup     560     control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
574 mpu_port                                          561 mpu_port
575     port # for MPU-401 UART (PnP setup - 0x300    562     port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
576 fm_port                                           563 fm_port
577     FM port # for CS4236 chip (PnP setup - 0x3    564     FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
578 irq                                               565 irq
579     IRQ # for CS4236 chip (5,7,9,11,12,15)        566     IRQ # for CS4236 chip (5,7,9,11,12,15)
580 mpu_irq                                           567 mpu_irq
581     IRQ # for MPU-401 UART (9,11,12,15)           568     IRQ # for MPU-401 UART (9,11,12,15)
582 dma1                                              569 dma1
583     first DMA # for CS4236 chip (0,1,3)           570     first DMA # for CS4236 chip (0,1,3)
584 dma2                                              571 dma2
585     second DMA # for CS4236 chip (0,1,3), -1 =    572     second DMA # for CS4236 chip (0,1,3), -1 = disable
586                                                   573 
587 This module supports multiple cards. This modu    574 This module supports multiple cards. This module does not support autoprobe
588 (if ISA PnP is not used) thus main port and co    575 (if ISA PnP is not used) thus main port and control port must be
589 specified!!! Other ports are optional.            576 specified!!! Other ports are optional.
590                                                   577 
591 The power-management is supported.                578 The power-management is supported.
592                                                   579 
593 This module is aliased as snd-cs4232 since it     580 This module is aliased as snd-cs4232 since it provides the old
594 snd-cs4232 functionality, too.                    581 snd-cs4232 functionality, too.
595                                                   582 
596 Module snd-cs4281                                 583 Module snd-cs4281
597 -----------------                                 584 -----------------
598                                                   585 
599 Module for Cirrus Logic CS4281 soundchip.         586 Module for Cirrus Logic CS4281 soundchip.
600                                                   587 
601 dual_codec                                        588 dual_codec
602     Secondary codec ID (0 = disable, default)     589     Secondary codec ID (0 = disable, default)
603                                                   590 
604 This module supports multiple cards.              591 This module supports multiple cards.
605                                                   592 
606 The power-management is supported.                593 The power-management is supported.
607                                                   594 
608 Module snd-cs46xx                                 595 Module snd-cs46xx
609 -----------------                                 596 -----------------
610                                                   597 
611 Module for PCI sound cards based on CS4610/CS4    598 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
612 CS4624/CS4630/CS4280 PCI chips.                   599 CS4624/CS4630/CS4280 PCI chips.
613                                                   600 
614 external_amp                                      601 external_amp
615     Force to enable external amplifier.           602     Force to enable external amplifier.
616 thinkpad                                          603 thinkpad
617     Force to enable Thinkpad's CLKRUN control.    604     Force to enable Thinkpad's CLKRUN control.
618 mmap_valid                                        605 mmap_valid
619     Support OSS mmap mode (default = 0).          606     Support OSS mmap mode (default = 0).
620                                                   607 
621 This module supports multiple cards and autopr    608 This module supports multiple cards and autoprobe.
622 Usually external amp and CLKRUN controls are d    609 Usually external amp and CLKRUN controls are detected automatically
623 from PCI sub vendor/device ids.  If they don't    610 from PCI sub vendor/device ids.  If they don't work, give the options
624 above explicitly.                                 611 above explicitly.
625                                                   612 
626 The power-management is supported.                613 The power-management is supported.
627                                                   614 
628 Module snd-cs5530                                 615 Module snd-cs5530
629 -----------------                                 616 -----------------
630                                                   617 
631 Module for Cyrix/NatSemi Geode 5530 chip.         618 Module for Cyrix/NatSemi Geode 5530 chip. 
632                                                   619 
633 Module snd-cs5535audio                            620 Module snd-cs5535audio
634 ----------------------                            621 ----------------------
635                                                   622 
636 Module for multifunction CS5535 companion PCI     623 Module for multifunction CS5535 companion PCI device
637                                                   624 
638 The power-management is supported.                625 The power-management is supported.
639                                                   626 
640 Module snd-ctxfi                                  627 Module snd-ctxfi
641 ----------------                                  628 ----------------
642                                                   629 
643 Module for Creative Sound Blaster X-Fi boards     630 Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
644                                                   631 
645 * Creative Sound Blaster X-Fi Titanium Fatal1t    632 * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
646 * Creative Sound Blaster X-Fi Titanium Fatal1t    633 * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
647 * Creative Sound Blaster X-Fi Titanium Profess    634 * Creative Sound Blaster X-Fi Titanium Professional Audio
648 * Creative Sound Blaster X-Fi Titanium            635 * Creative Sound Blaster X-Fi Titanium
649 * Creative Sound Blaster X-Fi Elite Pro           636 * Creative Sound Blaster X-Fi Elite Pro
650 * Creative Sound Blaster X-Fi Platinum            637 * Creative Sound Blaster X-Fi Platinum
651 * Creative Sound Blaster X-Fi Fatal1ty            638 * Creative Sound Blaster X-Fi Fatal1ty
652 * Creative Sound Blaster X-Fi XtremeGamer         639 * Creative Sound Blaster X-Fi XtremeGamer
653 * Creative Sound Blaster X-Fi XtremeMusic         640 * Creative Sound Blaster X-Fi XtremeMusic
654                                                   641         
655 reference_rate                                    642 reference_rate
656     reference sample rate, 44100 or 48000 (def    643     reference sample rate, 44100 or 48000 (default)
657 multiple                                          644 multiple
658     multiple to ref. sample rate, 1 or 2 (defa    645     multiple to ref. sample rate, 1 or 2 (default)
659 subsystem                                         646 subsystem
660     override the PCI SSID for probing;            647     override the PCI SSID for probing;
661     the value consists of SSVID << 16 | SSDID.    648     the value consists of SSVID << 16 | SSDID.
662     The default is zero, which means no overri    649     The default is zero, which means no override.
663                                                   650 
664 This module supports multiple cards.              651 This module supports multiple cards.
665                                                   652 
666 Module snd-darla20                                653 Module snd-darla20
667 ------------------                                654 ------------------
668                                                   655 
669 Module for Echoaudio Darla20                      656 Module for Echoaudio Darla20
670                                                   657 
671 This module supports multiple cards.              658 This module supports multiple cards.
672 The driver requires the firmware loader suppor    659 The driver requires the firmware loader support on kernel.
673                                                   660 
674 Module snd-darla24                                661 Module snd-darla24
675 ------------------                                662 ------------------
676                                                   663 
677 Module for Echoaudio Darla24                      664 Module for Echoaudio Darla24
678                                                   665 
679 This module supports multiple cards.              666 This module supports multiple cards.
680 The driver requires the firmware loader suppor    667 The driver requires the firmware loader support on kernel.
681                                                   668 
682 Module snd-dt019x                                 669 Module snd-dt019x
683 -----------------                                 670 -----------------
684                                                   671 
685 Module for Diamond Technologies DT-019X / Avan    672 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
686 only)                                             673 only)
687                                                   674 
688 This module supports multiple cards.  This mod    675 This module supports multiple cards.  This module is enabled only with
689 ISA PnP support.                                  676 ISA PnP support.
690                                                   677 
691 The power-management is supported.                678 The power-management is supported.
692                                                   679 
693 Module snd-dummy                                  680 Module snd-dummy
694 ----------------                                  681 ----------------
695                                                   682 
696 Module for the dummy sound card. This "card" d    683 Module for the dummy sound card. This "card" doesn't do any output
697 or input, but you may use this module for any     684 or input, but you may use this module for any application which
698 requires a sound card (like RealPlayer).          685 requires a sound card (like RealPlayer).
699                                                   686 
700 pcm_devs                                          687 pcm_devs
701     Number of PCM devices assigned to each car    688     Number of PCM devices assigned to each card (default = 1, up to 4)
702 pcm_substreams                                    689 pcm_substreams
703     Number of PCM substreams assigned to each     690     Number of PCM substreams assigned to each PCM (default = 8, up to 128)
704 hrtimer                                           691 hrtimer
705     Use hrtimer (=1, default) or system timer     692     Use hrtimer (=1, default) or system timer (=0)
706 fake_buffer                                       693 fake_buffer
707     Fake buffer allocations (default = 1)         694     Fake buffer allocations (default = 1)
708                                                   695 
709 When multiple PCM devices are created, snd-dum    696 When multiple PCM devices are created, snd-dummy gives different
710 behavior to each PCM device:                      697 behavior to each PCM device:
711 * 0 = interleaved with mmap support               698 * 0 = interleaved with mmap support
712 * 1 = non-interleaved with mmap support           699 * 1 = non-interleaved with mmap support
713 * 2 = interleaved without mmap                    700 * 2 = interleaved without mmap 
714 * 3 = non-interleaved without mmap                701 * 3 = non-interleaved without mmap
715                                                   702 
716 As default, snd-dummy drivers doesn't allocate    703 As default, snd-dummy drivers doesn't allocate the real buffers
717 but either ignores read/write or mmap a single    704 but either ignores read/write or mmap a single dummy page to all
718 buffer pages, in order to save the resources.     705 buffer pages, in order to save the resources.  If your apps need
719 the read/ written buffer data to be consistent    706 the read/ written buffer data to be consistent, pass fake_buffer=0
720 option.                                           707 option.
721                                                   708 
722 The power-management is supported.                709 The power-management is supported.
723                                                   710 
724 Module snd-echo3g                                 711 Module snd-echo3g
725 -----------------                                 712 -----------------
726                                                   713 
727 Module for Echoaudio 3G cards (Gina3G/Layla3G)    714 Module for Echoaudio 3G cards (Gina3G/Layla3G)
728                                                   715 
729 This module supports multiple cards.              716 This module supports multiple cards.
730 The driver requires the firmware loader suppor    717 The driver requires the firmware loader support on kernel.
731                                                   718 
732 Module snd-emu10k1                                719 Module snd-emu10k1
733 ------------------                                720 ------------------
734                                                   721 
735 Module for EMU10K1/EMU10k2 based PCI sound car    722 Module for EMU10K1/EMU10k2 based PCI sound cards.
736                                                   723 
737 * Sound Blaster Live!                             724 * Sound Blaster Live!
738 * Sound Blaster PCI 512                           725 * Sound Blaster PCI 512
                                                   >> 726 * Emu APS (partially supported)
739 * Sound Blaster Audigy                            727 * Sound Blaster Audigy
740 * E-MU APS (partially supported)               !! 728         
741 * E-MU DAS                                     << 
742                                                << 
743 extin                                             729 extin
744     bitmap of available external inputs for FX !! 730     bitmap of available external inputs for FX8010 (see bellow)
745 extout                                            731 extout
746     bitmap of available external outputs for F !! 732     bitmap of available external outputs for FX8010 (see bellow)
747 seq_ports                                         733 seq_ports
748     allocated sequencer ports (4 by default)      734     allocated sequencer ports (4 by default)
749 max_synth_voices                                  735 max_synth_voices
750     limit of voices used for wavetable (64 by     736     limit of voices used for wavetable (64 by default)
751 max_buffer_size                                   737 max_buffer_size
752     specifies the maximum size of wavetable/pc    738     specifies the maximum size of wavetable/pcm buffers given in MB
753     unit.  Default value is 128.                  739     unit.  Default value is 128.
754 enable_ir                                         740 enable_ir
755     enable IR                                     741     enable IR
756                                                   742 
757 This module supports multiple cards and autopr    743 This module supports multiple cards and autoprobe.
758                                                   744 
759 Input & Output configurations                     745 Input & Output configurations                   [extin/extout]
760 * Creative Card wo/Digital out                    746 * Creative Card wo/Digital out                  [0x0003/0x1f03]
761 * Creative Card w/Digital out                     747 * Creative Card w/Digital out                   [0x0003/0x1f0f]
762 * Creative Card w/Digital CD in                   748 * Creative Card w/Digital CD in                 [0x000f/0x1f0f]
763 * Creative Card wo/Digital out + LiveDrive        749 * Creative Card wo/Digital out + LiveDrive      [0x3fc3/0x1fc3]
764 * Creative Card w/Digital out + LiveDrive         750 * Creative Card w/Digital out + LiveDrive       [0x3fc3/0x1fcf]
765 * Creative Card w/Digital CD in + LiveDrive       751 * Creative Card w/Digital CD in + LiveDrive     [0x3fcf/0x1fcf]
766 * Creative Card wo/Digital out + Digital I/O 2    752 * Creative Card wo/Digital out + Digital I/O 2  [0x0fc3/0x1f0f]
767 * Creative Card w/Digital out + Digital I/O 2     753 * Creative Card w/Digital out + Digital I/O 2   [0x0fc3/0x1f0f]
768 * Creative Card w/Digital CD in + Digital I/O     754 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
769 * Creative Card 5.1/w Digital out + LiveDrive     755 * Creative Card 5.1/w Digital out + LiveDrive   [0x3fc3/0x1fff]
770 * Creative Card 5.1 (c) 2003                      756 * Creative Card 5.1 (c) 2003                    [0x3fc3/0x7cff]
771 * Creative Card all ins and outs                  757 * Creative Card all ins and outs                [0x3fff/0x7fff]
772                                                   758   
773 The power-management is supported.                759 The power-management is supported.
774                                                   760   
775 Module snd-emu10k1x                               761 Module snd-emu10k1x
776 -------------------                               762 -------------------
777                                                   763 
778 Module for Creative Emu10k1X (SB Live Dell OEM    764 Module for Creative Emu10k1X (SB Live Dell OEM version)
779                                                   765 
780 This module supports multiple cards.              766 This module supports multiple cards.
781                                                   767 
782 Module snd-ens1370                                768 Module snd-ens1370
783 ------------------                                769 ------------------
784                                                   770 
785 Module for Ensoniq AudioPCI ES1370 PCI sound c    771 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
786                                                   772 
787 * SoundBlaster PCI 64                             773 * SoundBlaster PCI 64
788 * SoundBlaster PCI 128                            774 * SoundBlaster PCI 128
789                                                   775     
790 joystick                                          776 joystick
791     Enable joystick (default off)                 777     Enable joystick (default off)
792                                                   778   
793 This module supports multiple cards and autopr    779 This module supports multiple cards and autoprobe.
794                                                   780 
795 The power-management is supported.                781 The power-management is supported.
796                                                   782 
797 Module snd-ens1371                                783 Module snd-ens1371
798 ------------------                                784 ------------------
799                                                   785 
800 Module for Ensoniq AudioPCI ES1371 PCI sound c    786 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
801                                                   787 
802 * SoundBlaster PCI 64                             788 * SoundBlaster PCI 64
803 * SoundBlaster PCI 128                            789 * SoundBlaster PCI 128
804 * SoundBlaster Vibra PCI                          790 * SoundBlaster Vibra PCI
805                                                   791       
806 joystick_port                                     792 joystick_port
807     port # for joystick (0x200,0x208,0x210,0x2    793     port # for joystick (0x200,0x208,0x210,0x218), 0 = disable
808     (default), 1 = auto-detect                    794     (default), 1 = auto-detect
809                                                   795   
810 This module supports multiple cards and autopr    796 This module supports multiple cards and autoprobe.
811                                                   797 
812 The power-management is supported.                798 The power-management is supported.
813                                                   799 
814 Module snd-es1688                                 800 Module snd-es1688
815 -----------------                                 801 -----------------
816                                                   802 
817 Module for ESS AudioDrive ES-1688 and ES-688 s    803 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
818                                                   804 
819 isapnp                                            805 isapnp
820     ISA PnP detection - 0 = disable, 1 = enabl    806     ISA PnP detection - 0 = disable, 1 = enable (default)
821 mpu_port                                          807 mpu_port
822     port # for MPU-401 port (0x300,0x310,0x320    808     port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
823 mpu_irq                                           809 mpu_irq
824     IRQ # for MPU-401 port (5,7,9,10)             810     IRQ # for MPU-401 port (5,7,9,10)
825 fm_port                                           811 fm_port
826     port # for OPL3 (option; share the same po    812     port # for OPL3 (option; share the same port as default)
827                                                   813 
828 with ``isapnp=0``, the following additional op    814 with ``isapnp=0``, the following additional options are available:
829                                                   815 
830 port                                              816 port
831     port # for ES-1688 chip (0x220,0x240,0x260    817     port # for ES-1688 chip (0x220,0x240,0x260)
832 irq                                               818 irq
833     IRQ # for ES-1688 chip (5,7,9,10)             819     IRQ # for ES-1688 chip (5,7,9,10)
834 dma8                                              820 dma8
835     DMA # for ES-1688 chip (0,1,3)                821     DMA # for ES-1688 chip (0,1,3)
836                                                   822 
837 This module supports multiple cards and autopr    823 This module supports multiple cards and autoprobe (without MPU-401 port)
838 and PnP with the ES968 chip.                      824 and PnP with the ES968 chip.
839                                                   825 
840 Module snd-es18xx                                 826 Module snd-es18xx
841 -----------------                                 827 -----------------
842                                                   828 
843 Module for ESS AudioDrive ES-18xx sound cards.    829 Module for ESS AudioDrive ES-18xx sound cards.
844                                                   830 
845 isapnp                                            831 isapnp
846     ISA PnP detection - 0 = disable, 1 = enabl    832     ISA PnP detection - 0 = disable, 1 = enable (default)
847                                                   833 
848 with ``isapnp=0``, the following options are a    834 with ``isapnp=0``, the following options are available:
849                                                   835 
850 port                                              836 port
851     port # for ES-18xx chip (0x220,0x240,0x260    837     port # for ES-18xx chip (0x220,0x240,0x260)
852 mpu_port                                          838 mpu_port
853     port # for MPU-401 port (0x300,0x310,0x320    839     port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
854 fm_port                                           840 fm_port
855     port # for FM (optional, not used)            841     port # for FM (optional, not used)
856 irq                                               842 irq
857     IRQ # for ES-18xx chip (5,7,9,10)             843     IRQ # for ES-18xx chip (5,7,9,10)
858 dma1                                              844 dma1
859     first DMA # for ES-18xx chip (0,1,3)          845     first DMA # for ES-18xx chip (0,1,3)
860 dma2                                              846 dma2
861     first DMA # for ES-18xx chip (0,1,3)          847     first DMA # for ES-18xx chip (0,1,3)
862                                                   848 
863 This module supports multiple cards, ISA PnP a    849 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
864 port if native ISA PnP routines are not used).    850 port if native ISA PnP routines are not used).
865 When ``dma2`` is equal with ``dma1``, the driv    851 When ``dma2`` is equal with ``dma1``, the driver works as half-duplex.
866                                                   852 
867 The power-management is supported.                853 The power-management is supported.
868                                                   854 
869 Module snd-es1938                                 855 Module snd-es1938
870 -----------------                                 856 -----------------
871                                                   857 
872 Module for sound cards based on ESS Solo-1 (ES    858 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
873                                                   859 
874 This module supports multiple cards and autopr    860 This module supports multiple cards and autoprobe.
875                                                   861 
876 The power-management is supported.                862 The power-management is supported.
877                                                   863 
878 Module snd-es1968                                 864 Module snd-es1968
879 -----------------                                 865 -----------------
880                                                   866 
881 Module for sound cards based on ESS Maestro-1/    867 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
882                                                   868 
883 total_bufsize                                     869 total_bufsize
884     total buffer size in kB (1-4096kB)            870     total buffer size in kB (1-4096kB)
885 pcm_substreams_p                                  871 pcm_substreams_p
886     playback channels (1-8, default=2)            872     playback channels (1-8, default=2)
887 pcm_substreams_c                                  873 pcm_substreams_c
888     capture channels (1-8, default=0)             874     capture channels (1-8, default=0)
889 clock                                             875 clock
890     clock (0 = auto-detection)                    876     clock (0 = auto-detection)
891 use_pm                                            877 use_pm
892     support the power-management (0 = off, 1 =    878     support the power-management (0 = off, 1 = on, 2 = auto (default))
893 enable_mpu                                        879 enable_mpu
894     enable MPU401 (0 = off, 1 = on, 2 = auto (    880     enable MPU401 (0 = off, 1 = on, 2 = auto (default))
895 joystick                                          881 joystick
896     enable joystick (default off)                 882     enable joystick (default off)       
897                                                   883 
898 This module supports multiple cards and autopr    884 This module supports multiple cards and autoprobe.
899                                                   885 
900 The power-management is supported.                886 The power-management is supported.
901                                                   887 
902 Module snd-fm801                                  888 Module snd-fm801
903 ----------------                                  889 ----------------
904                                                   890 
905 Module for ForteMedia FM801 based PCI sound ca    891 Module for ForteMedia FM801 based PCI sound cards.
906                                                   892 
907 tea575x_tuner                                     893 tea575x_tuner
908     Enable TEA575x tuner;                         894     Enable TEA575x tuner;
909     1 = MediaForte 256-PCS,                       895     1 = MediaForte 256-PCS,
910     2 = MediaForte 256-PCPR,                      896     2 = MediaForte 256-PCPR,
911     3 = MediaForte 64-PCR                         897     3 = MediaForte 64-PCR
912     High 16-bits are video (radio) device numb    898     High 16-bits are video (radio) device number + 1;
913     example: 0x10002 (MediaForte 256-PCPR, dev    899     example: 0x10002 (MediaForte 256-PCPR, device 1)
914                                                   900           
915 This module supports multiple cards and autopr    901 This module supports multiple cards and autoprobe.
916                                                   902 
917 The power-management is supported.                903 The power-management is supported.
918                                                   904 
919 Module snd-gina20                                 905 Module snd-gina20
920 -----------------                                 906 -----------------
921                                                   907 
922 Module for Echoaudio Gina20                       908 Module for Echoaudio Gina20
923                                                   909 
924 This module supports multiple cards.              910 This module supports multiple cards.
925 The driver requires the firmware loader suppor    911 The driver requires the firmware loader support on kernel.
926                                                   912 
927 Module snd-gina24                                 913 Module snd-gina24
928 -----------------                                 914 -----------------
929                                                   915 
930 Module for Echoaudio Gina24                       916 Module for Echoaudio Gina24
931                                                   917 
932 This module supports multiple cards.              918 This module supports multiple cards.
933 The driver requires the firmware loader suppor    919 The driver requires the firmware loader support on kernel.
934                                                   920 
935 Module snd-gusclassic                             921 Module snd-gusclassic
936 ---------------------                             922 ---------------------
937                                                   923 
938 Module for Gravis UltraSound Classic sound car    924 Module for Gravis UltraSound Classic sound card.
939                                                   925 
940 port                                              926 port
941     port # for GF1 chip (0x220,0x230,0x240,0x2    927     port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
942 irq                                               928 irq
943     IRQ # for GF1 chip (3,5,9,11,12,15)           929     IRQ # for GF1 chip (3,5,9,11,12,15)
944 dma1                                              930 dma1
945     DMA # for GF1 chip (1,3,5,6,7)                931     DMA # for GF1 chip (1,3,5,6,7)
946 dma2                                              932 dma2
947     DMA # for GF1 chip (1,3,5,6,7,-1=disable)     933     DMA # for GF1 chip (1,3,5,6,7,-1=disable)
948 joystick_dac                                      934 joystick_dac
949     0 to 31, (0.59V-4.52V or 0.389V-2.98V)        935     0 to 31, (0.59V-4.52V or 0.389V-2.98V)
950 voices                                            936 voices
951     GF1 voices limit (14-32)                      937     GF1 voices limit (14-32)
952 pcm_voices                                        938 pcm_voices
953     reserved PCM voices                           939     reserved PCM voices
954                                                   940 
955 This module supports multiple cards and autopr    941 This module supports multiple cards and autoprobe.
956                                                   942 
957 Module snd-gusextreme                             943 Module snd-gusextreme
958 ---------------------                             944 ---------------------
959                                                   945 
960 Module for Gravis UltraSound Extreme (Synergy     946 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
961                                                   947 
962 port                                              948 port
963     port # for ES-1688 chip (0x220,0x230,0x240    949     port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
964 gf1_port                                          950 gf1_port
965     port # for GF1 chip (0x210,0x220,0x230,0x2    951     port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
966 mpu_port                                          952 mpu_port
967     port # for MPU-401 port (0x300,0x310,0x320    953     port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
968 irq                                               954 irq
969     IRQ # for ES-1688 chip (5,7,9,10)             955     IRQ # for ES-1688 chip (5,7,9,10)
970 gf1_irq                                           956 gf1_irq
971     IRQ # for GF1 chip (3,5,9,11,12,15)           957     IRQ # for GF1 chip (3,5,9,11,12,15)
972 mpu_irq                                           958 mpu_irq
973     IRQ # for MPU-401 port (5,7,9,10)             959     IRQ # for MPU-401 port (5,7,9,10)
974 dma8                                              960 dma8
975     DMA # for ES-1688 chip (0,1,3)                961     DMA # for ES-1688 chip (0,1,3)
976 dma1                                              962 dma1
977     DMA # for GF1 chip (1,3,5,6,7)                963     DMA # for GF1 chip (1,3,5,6,7)
978 joystick_dac                                      964 joystick_dac
979     0 to 31, (0.59V-4.52V or 0.389V-2.98V)        965     0 to 31, (0.59V-4.52V or 0.389V-2.98V)
980 voices                                            966 voices
981     GF1 voices limit (14-32)                      967     GF1 voices limit (14-32)
982 pcm_voices                                        968 pcm_voices
983     reserved PCM voices                           969     reserved PCM voices
984                                                   970 
985 This module supports multiple cards and autopr    971 This module supports multiple cards and autoprobe (without MPU-401 port).
986                                                   972 
987 Module snd-gusmax                                 973 Module snd-gusmax
988 -----------------                                 974 -----------------
989                                                   975 
990 Module for Gravis UltraSound MAX sound card.      976 Module for Gravis UltraSound MAX sound card.
991                                                   977 
992 port                                              978 port
993     port # for GF1 chip (0x220,0x230,0x240,0x2    979     port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
994 irq                                               980 irq
995     IRQ # for GF1 chip (3,5,9,11,12,15)           981     IRQ # for GF1 chip (3,5,9,11,12,15)
996 dma1                                              982 dma1
997     DMA # for GF1 chip (1,3,5,6,7)                983     DMA # for GF1 chip (1,3,5,6,7)
998 dma2                                              984 dma2
999     DMA # for GF1 chip (1,3,5,6,7,-1=disable)     985     DMA # for GF1 chip (1,3,5,6,7,-1=disable)
1000 joystick_dac                                     986 joystick_dac
1001     0 to 31, (0.59V-4.52V or 0.389V-2.98V)       987     0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1002 voices                                           988 voices
1003     GF1 voices limit (14-32)                     989     GF1 voices limit (14-32)
1004 pcm_voices                                       990 pcm_voices
1005     reserved PCM voices                          991     reserved PCM voices
1006                                                  992 
1007 This module supports multiple cards and autop    993 This module supports multiple cards and autoprobe.
1008                                                  994 
1009 Module snd-hda-intel                             995 Module snd-hda-intel
1010 --------------------                             996 --------------------
1011                                                  997 
1012 Module for Intel HD Audio (ICH6, ICH6M, ESB2,    998 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
1013 PCH, SCH), ATI SB450, SB600, R600, RS600, RS6    999 PCH, SCH), ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
1014 RV630, RV635, RV670, RV770, VIA VT8251/VT8237    1000 RV630, RV635, RV670, RV770, VIA VT8251/VT8237A, SIS966, ULI M5461
1015                                                  1001 
1016 [Multiple options for each card instance]        1002 [Multiple options for each card instance]
1017                                                  1003 
1018 model                                            1004 model
1019     force the model name                         1005     force the model name
1020 position_fix                                     1006 position_fix
1021     Fix DMA pointer;                             1007     Fix DMA pointer;
1022     -1 = system default: choose appropriate o    1008     -1 = system default: choose appropriate one per controller hardware,
1023     0 = auto: falls back to LPIB when POSBUF     1009     0 = auto: falls back to LPIB when POSBUF doesn't work,
1024     1 = use LPIB,                                1010     1 = use LPIB,
1025     2 = POSBUF: use position buffer,             1011     2 = POSBUF: use position buffer,
1026     3 = VIACOMBO: VIA-specific workaround for    1012     3 = VIACOMBO: VIA-specific workaround for capture,
1027     4 = COMBO: use LPIB for playback, auto fo    1013     4 = COMBO: use LPIB for playback, auto for capture stream
1028     5 = SKL+: apply the delay calculation ava    1014     5 = SKL+: apply the delay calculation available on recent Intel chips
1029     6 = FIFO: correct the position with the f    1015     6 = FIFO: correct the position with the fixed FIFO size, for recent AMD chips
1030 probe_mask                                       1016 probe_mask
1031     Bitmask to probe codecs (default = -1, me    1017     Bitmask to probe codecs (default = -1, meaning all slots);
1032     When the bit 8 (0x100) is set, the lower     1018     When the bit 8 (0x100) is set, the lower 8 bits are used
1033     as the "fixed" codec slots; i.e. the driv    1019     as the "fixed" codec slots; i.e. the driver probes the
1034     slots regardless what hardware reports ba    1020     slots regardless what hardware reports back
1035 probe_only                                       1021 probe_only
1036     Only probing and no codec initialization     1022     Only probing and no codec initialization (default=off);
1037     Useful to check the initial codec status     1023     Useful to check the initial codec status for debugging
1038 bdl_pos_adj                                      1024 bdl_pos_adj
1039     Specifies the DMA IRQ timing delay in sam    1025     Specifies the DMA IRQ timing delay in samples.
1040     Passing -1 will make the driver to choose    1026     Passing -1 will make the driver to choose the appropriate
1041     value based on the controller chip.          1027     value based on the controller chip.
1042 patch                                            1028 patch
1043     Specifies the early "patch" files to modi    1029     Specifies the early "patch" files to modify the HD-audio setup
1044     before initializing the codecs.              1030     before initializing the codecs.
1045     This option is available only when ``CONF    1031     This option is available only when ``CONFIG_SND_HDA_PATCH_LOADER=y``
1046     is set.  See hd-audio/notes.rst for detai    1032     is set.  See hd-audio/notes.rst for details.
1047 beep_mode                                        1033 beep_mode
1048     Selects the beep registration mode (0=off    1034     Selects the beep registration mode (0=off, 1=on);
1049     default value is set via ``CONFIG_SND_HDA    1035     default value is set via ``CONFIG_SND_HDA_INPUT_BEEP_MODE`` kconfig.
1050                                                  1036 
1051 [Single (global) options]                        1037 [Single (global) options]
1052                                                  1038 
1053 single_cmd                                       1039 single_cmd
1054     Use single immediate commands to communic    1040     Use single immediate commands to communicate with codecs
1055     (for debugging only)                         1041     (for debugging only)
1056 enable_msi                                       1042 enable_msi
1057     Enable Message Signaled Interrupt (MSI) (    1043     Enable Message Signaled Interrupt (MSI) (default = off)
1058 power_save                                       1044 power_save
1059     Automatic power-saving timeout (in second    1045     Automatic power-saving timeout (in second, 0 = disable)
1060 power_save_controller                            1046 power_save_controller
1061     Reset HD-audio controller in power-saving    1047     Reset HD-audio controller in power-saving mode (default = on)
1062 pm_blacklist                                  << 
1063     Enable / disable power-management deny-li << 
1064     deny-list, 0 = skip PM deny-list, 1 = for << 
1065 align_buffer_size                                1048 align_buffer_size
1066     Force rounding of buffer/period sizes to     1049     Force rounding of buffer/period sizes to multiples of 128 bytes.
1067     This is more efficient in terms of memory    1050     This is more efficient in terms of memory access but isn't
1068     required by the HDA spec and prevents use    1051     required by the HDA spec and prevents users from specifying
1069     exact period/buffer sizes. (default = on)    1052     exact period/buffer sizes. (default = on)
1070 snoop                                            1053 snoop
1071     Enable/disable snooping (default = on)       1054     Enable/disable snooping (default = on)
1072                                                  1055 
1073 This module supports multiple cards and autop    1056 This module supports multiple cards and autoprobe.
1074                                                  1057 
1075 See hd-audio/notes.rst for more details about    1058 See hd-audio/notes.rst for more details about HD-audio driver.
1076                                                  1059 
1077 Each codec may have a model table for differe    1060 Each codec may have a model table for different configurations.
1078 If your machine isn't listed there, the defau    1061 If your machine isn't listed there, the default (usually minimal)
1079 configuration is set up.  You can pass ``mode    1062 configuration is set up.  You can pass ``model=<name>`` option to
1080 specify a certain model in such a case.  Ther    1063 specify a certain model in such a case.  There are different
1081 models depending on the codec chip.  The list    1064 models depending on the codec chip.  The list of available models
1082 is found in hd-audio/models.rst.                 1065 is found in hd-audio/models.rst.
1083                                                  1066 
1084 The model name ``generic`` is treated as a sp    1067 The model name ``generic`` is treated as a special case.  When this
1085 model is given, the driver uses the generic c    1068 model is given, the driver uses the generic codec parser without
1086 "codec-patch".  It's sometimes good for testi    1069 "codec-patch".  It's sometimes good for testing and debugging.
1087                                                  1070 
1088 The model option can be used also for aliasin    1071 The model option can be used also for aliasing to another PCI or codec
1089 SSID.  When it's passed in the form of ``mode    1072 SSID.  When it's passed in the form of ``model=XXXX:YYYY`` where XXXX
1090 and YYYY are the sub-vendor and sub-device ID    1073 and YYYY are the sub-vendor and sub-device IDs in hex numbers,
1091 respectively, the driver will refer to that S    1074 respectively, the driver will refer to that SSID as a reference to the
1092 quirk table.                                     1075 quirk table.
1093                                                  1076 
1094 If the default configuration doesn't work and    1077 If the default configuration doesn't work and one of the above
1095 matches with your device, report it together     1078 matches with your device, report it together with alsa-info.sh
1096 output (with ``--no-upload`` option) to kerne    1079 output (with ``--no-upload`` option) to kernel bugzilla or alsa-devel
1097 ML (see the section `Links and Addresses`_).     1080 ML (see the section `Links and Addresses`_).
1098                                                  1081 
1099 ``power_save`` and ``power_save_controller``     1082 ``power_save`` and ``power_save_controller`` options are for power-saving
1100 mode.  See powersave.rst for details.            1083 mode.  See powersave.rst for details.
1101                                                  1084 
1102 Note 2: If you get click noises on output, tr    1085 Note 2: If you get click noises on output, try the module option
1103 ``position_fix=1`` or ``2``.  ``position_fix=    1086 ``position_fix=1`` or ``2``.  ``position_fix=1`` will use the SD_LPIB
1104 register value without FIFO size correction a    1087 register value without FIFO size correction as the current
1105 DMA pointer.  ``position_fix=2`` will make th    1088 DMA pointer.  ``position_fix=2`` will make the driver to use
1106 the position buffer instead of reading SD_LPI    1089 the position buffer instead of reading SD_LPIB register.
1107 (Usually SD_LPIB register is more accurate th    1090 (Usually SD_LPIB register is more accurate than the
1108 position buffer.)                                1091 position buffer.)
1109                                                  1092 
1110 ``position_fix=3`` is specific to VIA devices    1093 ``position_fix=3`` is specific to VIA devices.  The position
1111 of the capture stream is checked from both LP    1094 of the capture stream is checked from both LPIB and POSBUF
1112 values.  ``position_fix=4`` is a combination     1095 values.  ``position_fix=4`` is a combination mode, using LPIB
1113 for playback and POSBUF for capture.             1096 for playback and POSBUF for capture.
1114                                                  1097 
1115 NB: If you get many ``azx_get_response timeou    1098 NB: If you get many ``azx_get_response timeout`` messages at
1116 loading, it's likely a problem of interrupts     1099 loading, it's likely a problem of interrupts (e.g. ACPI irq
1117 routing).  Try to boot with options like ``pc    1100 routing).  Try to boot with options like ``pci=noacpi``.  Also, you
1118 can try ``single_cmd=1`` module option.  This    1101 can try ``single_cmd=1`` module option.  This will switch the
1119 communication method between HDA controller a    1102 communication method between HDA controller and codecs to the
1120 single immediate commands instead of CORB/RIR    1103 single immediate commands instead of CORB/RIRB.  Basically, the
1121 single command mode is provided only for BIOS    1104 single command mode is provided only for BIOS, and you won't get
1122 unsolicited events, too.  But, at least, this    1105 unsolicited events, too.  But, at least, this works independently
1123 from the irq.  Remember this is a last resort    1106 from the irq.  Remember this is a last resort, and should be
1124 avoided as much as possible...                   1107 avoided as much as possible...
1125                                                  1108 
1126 MORE NOTES ON ``azx_get_response timeout`` PR    1109 MORE NOTES ON ``azx_get_response timeout`` PROBLEMS:
1127 On some hardware, you may need to add a prope    1110 On some hardware, you may need to add a proper probe_mask option
1128 to avoid the ``azx_get_response timeout`` pro    1111 to avoid the ``azx_get_response timeout`` problem above, instead.
1129 This occurs when the access to non-existing o    1112 This occurs when the access to non-existing or non-working codec slot
1130 (likely a modem one) causes a stall of the co    1113 (likely a modem one) causes a stall of the communication via HD-audio
1131 bus.  You can see which codec slots are probe    1114 bus.  You can see which codec slots are probed by enabling
1132 ``CONFIG_SND_DEBUG_VERBOSE``, or simply from     1115 ``CONFIG_SND_DEBUG_VERBOSE``, or simply from the file name of the codec
1133 proc files.  Then limit the slots to probe by    1116 proc files.  Then limit the slots to probe by probe_mask option.
1134 For example, ``probe_mask=1`` means to probe     1117 For example, ``probe_mask=1`` means to probe only the first slot, and
1135 ``probe_mask=4`` means only the third slot.      1118 ``probe_mask=4`` means only the third slot.
1136                                                  1119 
1137 The power-management is supported.               1120 The power-management is supported.
1138                                                  1121 
1139 Module snd-hdsp                                  1122 Module snd-hdsp
1140 ---------------                                  1123 ---------------
1141                                                  1124 
1142 Module for RME Hammerfall DSP audio interface    1125 Module for RME Hammerfall DSP audio interface(s)
1143                                                  1126 
1144 This module supports multiple cards.             1127 This module supports multiple cards.
1145                                                  1128 
1146 Note: The firmware data can be automatically     1129 Note: The firmware data can be automatically loaded via hotplug
1147 when ``CONFIG_FW_LOADER`` is set.  Otherwise,    1130 when ``CONFIG_FW_LOADER`` is set.  Otherwise, you need to load
1148 the firmware via hdsploader utility included     1131 the firmware via hdsploader utility included in alsa-tools
1149 package.                                         1132 package.
1150 The firmware data is found in alsa-firmware p    1133 The firmware data is found in alsa-firmware package.
1151                                                  1134 
1152 Note: snd-page-alloc module does the job whic    1135 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1153 module did formerly.  It will allocate the bu    1136 module did formerly.  It will allocate the buffers in advance
1154 when any HDSP cards are found.  To make the b    1137 when any HDSP cards are found.  To make the buffer
1155 allocation sure, load snd-page-alloc module i    1138 allocation sure, load snd-page-alloc module in the early
1156 stage of boot sequence.  See `Early Buffer Al    1139 stage of boot sequence.  See `Early Buffer Allocation`_
1157 section.                                         1140 section.
1158                                                  1141 
1159 Module snd-hdspm                                 1142 Module snd-hdspm
1160 ----------------                                 1143 ----------------
1161                                                  1144 
1162 Module for RME HDSP MADI board.                  1145 Module for RME HDSP MADI board.
1163                                                  1146 
1164 precise_ptr                                      1147 precise_ptr
1165     Enable precise pointer, or disable.          1148     Enable precise pointer, or disable.
1166 line_outs_monitor                                1149 line_outs_monitor
1167     Send playback streams to analog outs by d    1150     Send playback streams to analog outs by default.
1168 enable_monitor                                   1151 enable_monitor
1169     Enable Analog Out on Channel 63/64 by def    1152     Enable Analog Out on Channel 63/64 by default.
1170                                                  1153 
1171 See hdspm.rst for details.                       1154 See hdspm.rst for details.
1172                                                  1155 
1173 Module snd-ice1712                               1156 Module snd-ice1712
1174 ------------------                               1157 ------------------
1175                                                  1158 
1176 Module for Envy24 (ICE1712) based PCI sound c    1159 Module for Envy24 (ICE1712) based PCI sound cards.
1177                                                  1160 
1178 * MidiMan M Audio Delta 1010                     1161 * MidiMan M Audio Delta 1010
1179 * MidiMan M Audio Delta 1010LT                   1162 * MidiMan M Audio Delta 1010LT
1180 * MidiMan M Audio Delta DiO 2496                 1163 * MidiMan M Audio Delta DiO 2496
1181 * MidiMan M Audio Delta 66                       1164 * MidiMan M Audio Delta 66
1182 * MidiMan M Audio Delta 44                       1165 * MidiMan M Audio Delta 44
1183 * MidiMan M Audio Delta 410                      1166 * MidiMan M Audio Delta 410
1184 * MidiMan M Audio Audiophile 2496                1167 * MidiMan M Audio Audiophile 2496
1185 * TerraTec EWS 88MT                              1168 * TerraTec EWS 88MT
1186 * TerraTec EWS 88D                               1169 * TerraTec EWS 88D
1187 * TerraTec EWX 24/96                             1170 * TerraTec EWX 24/96
1188 * TerraTec DMX 6Fire                             1171 * TerraTec DMX 6Fire
1189 * TerraTec Phase 88                              1172 * TerraTec Phase 88
1190 * Hoontech SoundTrack DSP 24                     1173 * Hoontech SoundTrack DSP 24
1191 * Hoontech SoundTrack DSP 24 Value               1174 * Hoontech SoundTrack DSP 24 Value
1192 * Hoontech SoundTrack DSP 24 Media 7.1           1175 * Hoontech SoundTrack DSP 24 Media 7.1
1193 * Event Electronics, EZ8                         1176 * Event Electronics, EZ8
1194 * Digigram VX442                                 1177 * Digigram VX442
1195 * Lionstracs, Mediastaton                        1178 * Lionstracs, Mediastaton
1196 * Terrasoniq TS 88                               1179 * Terrasoniq TS 88
1197                                                  1180                         
1198 model                                            1181 model
1199     Use the given board model, one of the fol    1182     Use the given board model, one of the following:
1200     delta1010, dio2496, delta66, delta44, aud    1183     delta1010, dio2496, delta66, delta44, audiophile, delta410,
1201     delta1010lt, vx442, ewx2496, ews88mt, ews    1184     delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1202     dmx6fire, dsp24, dsp24_value, dsp24_71, e    1185     dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1203     phase88, mediastation                        1186     phase88, mediastation
1204 omni                                             1187 omni
1205     Omni I/O support for MidiMan M-Audio Delt    1188     Omni I/O support for MidiMan M-Audio Delta44/66
1206 cs8427_timeout                                   1189 cs8427_timeout
1207     reset timeout for the CS8427 chip (S/PDIF    1190     reset timeout for the CS8427 chip (S/PDIF transceiver) in msec
1208     resolution, default value is 500 (0.5 sec    1191     resolution, default value is 500 (0.5 sec)
1209                                                  1192 
1210 This module supports multiple cards and autop    1193 This module supports multiple cards and autoprobe.
1211 Note: The consumer part is not used with all     1194 Note: The consumer part is not used with all Envy24 based cards (for
1212 example in the MidiMan Delta siree).             1195 example in the MidiMan Delta siree).
1213                                                  1196 
1214 Note: The supported board is detected by read    1197 Note: The supported board is detected by reading EEPROM or PCI
1215 SSID (if EEPROM isn't available).  You can ov    1198 SSID (if EEPROM isn't available).  You can override the
1216 model by passing ``model`` module option in c    1199 model by passing ``model`` module option in case that the
1217 driver isn't configured properly or you want     1200 driver isn't configured properly or you want to try another
1218 type for testing.                                1201 type for testing.
1219                                                  1202 
1220 Module snd-ice1724                               1203 Module snd-ice1724
1221 ------------------                               1204 ------------------
1222                                                  1205 
1223 Module for Envy24HT (VT/ICE1724), Envy24PT (V    1206 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1224                                                  1207 
1225 * MidiMan M Audio Revolution 5.1                 1208 * MidiMan M Audio Revolution 5.1
1226 * MidiMan M Audio Revolution 7.1                 1209 * MidiMan M Audio Revolution 7.1
1227 * MidiMan M Audio Audiophile 192                 1210 * MidiMan M Audio Audiophile 192
1228 * AMP Ltd AUDIO2000                              1211 * AMP Ltd AUDIO2000
1229 * TerraTec Aureon 5.1 Sky                        1212 * TerraTec Aureon 5.1 Sky
1230 * TerraTec Aureon 7.1 Space                      1213 * TerraTec Aureon 7.1 Space
1231 * TerraTec Aureon 7.1 Universe                   1214 * TerraTec Aureon 7.1 Universe
1232 * TerraTec Phase 22                              1215 * TerraTec Phase 22
1233 * TerraTec Phase 28                              1216 * TerraTec Phase 28
1234 * AudioTrak Prodigy 7.1                          1217 * AudioTrak Prodigy 7.1
1235 * AudioTrak Prodigy 7.1 LT                       1218 * AudioTrak Prodigy 7.1 LT
1236 * AudioTrak Prodigy 7.1 XT                       1219 * AudioTrak Prodigy 7.1 XT
1237 * AudioTrak Prodigy 7.1 HIFI                     1220 * AudioTrak Prodigy 7.1 HIFI
1238 * AudioTrak Prodigy 7.1 HD2                      1221 * AudioTrak Prodigy 7.1 HD2
1239 * AudioTrak Prodigy 192                          1222 * AudioTrak Prodigy 192
1240 * Pontis MS300                                   1223 * Pontis MS300
1241 * Albatron K8X800 Pro II                         1224 * Albatron K8X800 Pro II 
1242 * Chaintech ZNF3-150                             1225 * Chaintech ZNF3-150
1243 * Chaintech ZNF3-250                             1226 * Chaintech ZNF3-250
1244 * Chaintech 9CJS                                 1227 * Chaintech 9CJS
1245 * Chaintech AV-710                               1228 * Chaintech AV-710
1246 * Shuttle SN25P                                  1229 * Shuttle SN25P
1247 * Onkyo SE-90PCI                                 1230 * Onkyo SE-90PCI
1248 * Onkyo SE-200PCI                                1231 * Onkyo SE-200PCI
1249 * ESI Juli@                                      1232 * ESI Juli@
1250 * ESI Maya44                                     1233 * ESI Maya44
1251 * Hercules Fortissimo IV                         1234 * Hercules Fortissimo IV
1252 * EGO-SYS WaveTerminal 192M                      1235 * EGO-SYS WaveTerminal 192M
1253                                                  1236                         
1254 model                                            1237 model
1255     Use the given board model, one of the fol    1238     Use the given board model, one of the following:
1256     revo51, revo71, amp2000, prodigy71, prodi    1239     revo51, revo71, amp2000, prodigy71, prodigy71lt,
1257     prodigy71xt, prodigy71hifi, prodigyhd2, p    1240     prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
1258     juli, aureon51, aureon71, universe, ap192    1241     juli, aureon51, aureon71, universe, ap192, k8x800,
1259     phase22, phase28, ms300, av710, se200pci,    1242     phase22, phase28, ms300, av710, se200pci, se90pci,
1260     fortissimo4, sn25p, WT192M, maya44           1243     fortissimo4, sn25p, WT192M, maya44
1261                                                  1244   
1262 This module supports multiple cards and autop    1245 This module supports multiple cards and autoprobe.
1263                                                  1246 
1264 Note: The supported board is detected by read    1247 Note: The supported board is detected by reading EEPROM or PCI
1265 SSID (if EEPROM isn't available).  You can ov    1248 SSID (if EEPROM isn't available).  You can override the
1266 model by passing ``model`` module option in c    1249 model by passing ``model`` module option in case that the
1267 driver isn't configured properly or you want     1250 driver isn't configured properly or you want to try another
1268 type for testing.                                1251 type for testing.
1269                                                  1252 
1270 Module snd-indigo                                1253 Module snd-indigo
1271 -----------------                                1254 -----------------
1272                                                  1255 
1273 Module for Echoaudio Indigo                      1256 Module for Echoaudio Indigo
1274                                                  1257 
1275 This module supports multiple cards.             1258 This module supports multiple cards.
1276 The driver requires the firmware loader suppo    1259 The driver requires the firmware loader support on kernel.
1277                                                  1260 
1278 Module snd-indigodj                              1261 Module snd-indigodj
1279 -------------------                              1262 -------------------
1280                                                  1263 
1281 Module for Echoaudio Indigo DJ                   1264 Module for Echoaudio Indigo DJ
1282                                                  1265 
1283 This module supports multiple cards.             1266 This module supports multiple cards.
1284 The driver requires the firmware loader suppo    1267 The driver requires the firmware loader support on kernel.
1285                                                  1268 
1286 Module snd-indigoio                              1269 Module snd-indigoio
1287 -------------------                              1270 -------------------
1288                                                  1271 
1289 Module for Echoaudio Indigo IO                   1272 Module for Echoaudio Indigo IO
1290                                                  1273 
1291 This module supports multiple cards.             1274 This module supports multiple cards.
1292 The driver requires the firmware loader suppo    1275 The driver requires the firmware loader support on kernel.
1293                                                  1276 
1294 Module snd-intel8x0                              1277 Module snd-intel8x0
1295 -------------------                              1278 -------------------
1296                                                  1279 
1297 Module for AC'97 motherboards from Intel and     1280 Module for AC'97 motherboards from Intel and compatibles.
1298                                                  1281 
1299 * Intel i810/810E, i815, i820, i830, i84x, MX    1282 * Intel i810/810E, i815, i820, i830, i84x, MX440 ICH5, ICH6, ICH7,
1300   6300ESB, ESB2                                  1283   6300ESB, ESB2 
1301 * SiS 7012 (SiS 735)                             1284 * SiS 7012 (SiS 735)
1302 * NVidia NForce, NForce2, NForce3, MCP04, CK8    1285 * NVidia NForce, NForce2, NForce3, MCP04, CK804 CK8, CK8S, MCP501
1303 * AMD AMD768, AMD8111                            1286 * AMD AMD768, AMD8111
1304 * ALi m5455                                      1287 * ALi m5455
1305                                                  1288           
1306 ac97_clock                                       1289 ac97_clock
1307     AC'97 codec clock base (0 = auto-detect)     1290     AC'97 codec clock base (0 = auto-detect)
1308 ac97_quirk                                       1291 ac97_quirk
1309     AC'97 workaround for strange hardware;       1292     AC'97 workaround for strange hardware;
1310     See `AC97 Quirk Option`_ section below.      1293     See `AC97 Quirk Option`_ section below.
1311 buggy_irq                                        1294 buggy_irq
1312     Enable workaround for buggy interrupts on    1295     Enable workaround for buggy interrupts on some motherboards
1313     (default yes on nForce chips, otherwise o    1296     (default yes on nForce chips, otherwise off)
1314 buggy_semaphore                                  1297 buggy_semaphore
1315     Enable workaround for hardware with buggy    1298     Enable workaround for hardware with buggy semaphores (e.g. on some
1316     ASUS laptops) (default off)                  1299     ASUS laptops) (default off)
1317 spdif_aclink                                     1300 spdif_aclink
1318     Use S/PDIF over AC-link instead of direct    1301     Use S/PDIF over AC-link instead of direct connection from the
1319     controller chip (0 = off, 1 = on, -1 = de    1302     controller chip (0 = off, 1 = on, -1 = default)
1320                                                  1303 
1321 This module supports one chip and autoprobe.     1304 This module supports one chip and autoprobe.
1322                                                  1305 
1323 Note: the latest driver supports auto-detecti    1306 Note: the latest driver supports auto-detection of chip clock.
1324 if you still encounter too fast playback, spe    1307 if you still encounter too fast playback, specify the clock
1325 explicitly via the module option ``ac97_clock    1308 explicitly via the module option ``ac97_clock=41194``.
1326                                                  1309 
1327 Joystick/MIDI ports are not supported by this    1310 Joystick/MIDI ports are not supported by this driver.  If your
1328 motherboard has these devices, use the ns558     1311 motherboard has these devices, use the ns558 or snd-mpu401
1329 modules, respectively.                           1312 modules, respectively.
1330                                                  1313 
1331 The power-management is supported.               1314 The power-management is supported.
1332                                                  1315 
1333 Module snd-intel8x0m                             1316 Module snd-intel8x0m
1334 --------------------                             1317 --------------------
1335                                                  1318 
1336 Module for Intel ICH (i8x0) chipset MC97 mode    1319 Module for Intel ICH (i8x0) chipset MC97 modems.
1337                                                  1320 
1338 * Intel i810/810E, i815, i820, i830, i84x, MX    1321 * Intel i810/810E, i815, i820, i830, i84x, MX440 ICH5, ICH6, ICH7
1339 * SiS 7013 (SiS 735)                             1322 * SiS 7013 (SiS 735)
1340 * NVidia NForce, NForce2, NForce2s, NForce3      1323 * NVidia NForce, NForce2, NForce2s, NForce3
1341 * AMD AMD8111                                    1324 * AMD AMD8111
1342 * ALi m5455                                      1325 * ALi m5455
1343                                                  1326           
1344 ac97_clock                                       1327 ac97_clock
1345     AC'97 codec clock base (0 = auto-detect)     1328     AC'97 codec clock base (0 = auto-detect)
1346                                                  1329   
1347 This module supports one card and autoprobe.     1330 This module supports one card and autoprobe.
1348                                                  1331 
1349 Note: The default index value of this module     1332 Note: The default index value of this module is -2, i.e. the first
1350 slot is excluded.                                1333 slot is excluded.
1351                                                  1334 
1352 The power-management is supported.               1335 The power-management is supported.
1353                                                  1336 
1354 Module snd-interwave                             1337 Module snd-interwave
1355 --------------------                             1338 --------------------
1356                                                  1339 
1357 Module for Gravis UltraSound PnP, Dynasonic 3    1340 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1358 and other sound cards based on AMD InterWave     1341 and other sound cards based on AMD InterWave (tm) chip.
1359                                                  1342 
1360 joystick_dac                                     1343 joystick_dac
1361     0 to 31, (0.59V-4.52V or 0.389V-2.98V)       1344     0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1362 midi                                             1345 midi
1363     1 = MIDI UART enable, 0 = MIDI UART disab    1346     1 = MIDI UART enable, 0 = MIDI UART disable (default)
1364 pcm_voices                                       1347 pcm_voices
1365     reserved PCM voices for the synthesizer (    1348     reserved PCM voices for the synthesizer (default 2)
1366 effect                                           1349 effect
1367     1 = InterWave effects enable (default 0);    1350     1 = InterWave effects enable (default 0); requires 8 voices
1368 isapnp                                           1351 isapnp
1369     ISA PnP detection - 0 = disable, 1 = enab    1352     ISA PnP detection - 0 = disable, 1 = enable (default)
1370                                                  1353 
1371 with ``isapnp=0``, the following options are     1354 with ``isapnp=0``, the following options are available:
1372                                                  1355 
1373 port                                             1356 port
1374     port # for InterWave chip (0x210,0x220,0x    1357     port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1375 irq                                              1358 irq
1376     IRQ # for InterWave chip (3,5,9,11,12,15)    1359     IRQ # for InterWave chip (3,5,9,11,12,15)
1377 dma1                                             1360 dma1
1378     DMA # for InterWave chip (0,1,3,5,6,7)       1361     DMA # for InterWave chip (0,1,3,5,6,7)
1379 dma2                                             1362 dma2
1380     DMA # for InterWave chip (0,1,3,5,6,7,-1=    1363     DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1381                                                  1364 
1382 This module supports multiple cards, autoprob    1365 This module supports multiple cards, autoprobe and ISA PnP.
1383                                                  1366 
1384 Module snd-interwave-stb                         1367 Module snd-interwave-stb
1385 ------------------------                         1368 ------------------------
1386                                                  1369 
1387 Module for UltraSound 32-Pro (sound card from    1370 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1388 and other sound cards based on AMD InterWave     1371 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1389 circuit for extended control of bass, treble     1372 circuit for extended control of bass, treble and master volume.
1390                                                  1373 
1391 joystick_dac                                     1374 joystick_dac
1392     0 to 31, (0.59V-4.52V or 0.389V-2.98V)       1375     0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1393 midi                                             1376 midi
1394     1 = MIDI UART enable, 0 = MIDI UART disab    1377     1 = MIDI UART enable, 0 = MIDI UART disable (default)
1395 pcm_voices                                       1378 pcm_voices
1396     reserved PCM voices for the synthesizer (    1379     reserved PCM voices for the synthesizer (default 2)
1397 effect                                           1380 effect
1398     1 = InterWave effects enable (default 0);    1381     1 = InterWave effects enable (default 0); requires 8 voices
1399 isapnp                                           1382 isapnp
1400     ISA PnP detection - 0 = disable, 1 = enab    1383     ISA PnP detection - 0 = disable, 1 = enable (default)
1401                                                  1384 
1402 with ``isapnp=0``, the following options are     1385 with ``isapnp=0``, the following options are available:
1403                                                  1386 
1404 port                                             1387 port
1405     port # for InterWave chip (0x210,0x220,0x    1388     port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1406 port_tc                                          1389 port_tc
1407     tone control (i2c bus) port # for TEA6330    1390     tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1408 irq                                              1391 irq
1409     IRQ # for InterWave chip (3,5,9,11,12,15)    1392     IRQ # for InterWave chip (3,5,9,11,12,15)
1410 dma1                                             1393 dma1
1411     DMA # for InterWave chip (0,1,3,5,6,7)       1394     DMA # for InterWave chip (0,1,3,5,6,7)
1412 dma2                                             1395 dma2
1413     DMA # for InterWave chip (0,1,3,5,6,7,-1=    1396     DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1414                                                  1397 
1415 This module supports multiple cards, autoprob    1398 This module supports multiple cards, autoprobe and ISA PnP.
1416                                                  1399 
1417 Module snd-jazz16                                1400 Module snd-jazz16
1418 -------------------                              1401 -------------------
1419                                                  1402 
1420 Module for Media Vision Jazz16 chipset. The c    1403 Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
1421 MVD1216 + MVA416 + MVA514.                       1404 MVD1216 + MVA416 + MVA514.
1422                                                  1405 
1423 port                                             1406 port
1424     port # for SB DSP chip (0x210,0x220,0x230    1407     port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
1425 irq                                              1408 irq
1426     IRQ # for SB DSP chip (3,5,7,9,10,15)        1409     IRQ # for SB DSP chip (3,5,7,9,10,15)
1427 dma8                                             1410 dma8
1428     DMA # for SB DSP chip (1,3)                  1411     DMA # for SB DSP chip (1,3)
1429 dma16                                            1412 dma16
1430     DMA # for SB DSP chip (5,7)                  1413     DMA # for SB DSP chip (5,7)
1431 mpu_port                                         1414 mpu_port
1432     MPU-401 port # (0x300,0x310,0x320,0x330)     1415     MPU-401 port # (0x300,0x310,0x320,0x330)
1433 mpu_irq                                          1416 mpu_irq
1434     MPU-401 irq # (2,3,5,7)                      1417     MPU-401 irq # (2,3,5,7)
1435                                                  1418 
1436 This module supports multiple cards.             1419 This module supports multiple cards.
1437                                                  1420 
1438 Module snd-korg1212                              1421 Module snd-korg1212
1439 -------------------                              1422 -------------------
1440                                                  1423 
1441 Module for Korg 1212 IO PCI card                 1424 Module for Korg 1212 IO PCI card
1442                                                  1425 
1443 This module supports multiple cards.             1426 This module supports multiple cards.
1444                                                  1427 
1445 Module snd-layla20                               1428 Module snd-layla20
1446 ------------------                               1429 ------------------
1447                                                  1430 
1448 Module for Echoaudio Layla20                     1431 Module for Echoaudio Layla20
1449                                                  1432 
1450 This module supports multiple cards.             1433 This module supports multiple cards.
1451 The driver requires the firmware loader suppo    1434 The driver requires the firmware loader support on kernel.
1452                                                  1435 
1453 Module snd-layla24                               1436 Module snd-layla24
1454 ------------------                               1437 ------------------
1455                                                  1438 
1456 Module for Echoaudio Layla24                     1439 Module for Echoaudio Layla24
1457                                                  1440 
1458 This module supports multiple cards.             1441 This module supports multiple cards.
1459 The driver requires the firmware loader suppo    1442 The driver requires the firmware loader support on kernel.
1460                                                  1443 
1461 Module snd-lola                                  1444 Module snd-lola
1462 ---------------                                  1445 ---------------
1463                                                  1446 
1464 Module for Digigram Lola PCI-e boards            1447 Module for Digigram Lola PCI-e boards
1465                                                  1448 
1466 This module supports multiple cards.             1449 This module supports multiple cards.
1467                                                  1450 
1468 Module snd-lx6464es                              1451 Module snd-lx6464es
1469 -------------------                              1452 -------------------
1470                                                  1453 
1471 Module for Digigram LX6464ES boards              1454 Module for Digigram LX6464ES boards
1472                                                  1455 
1473 This module supports multiple cards.             1456 This module supports multiple cards.
1474                                                  1457 
1475 Module snd-maestro3                              1458 Module snd-maestro3
1476 -------------------                              1459 -------------------
1477                                                  1460 
1478 Module for Allegro/Maestro3 chips                1461 Module for Allegro/Maestro3 chips
1479                                                  1462 
1480 external_amp                                     1463 external_amp
1481     enable external amp (enabled by default)     1464     enable external amp (enabled by default)
1482 amp_gpio                                         1465 amp_gpio
1483     GPIO pin number for external amp (0-15) o    1466     GPIO pin number for external amp (0-15) or -1 for default pin (8
1484     for allegro, 1 for others)                   1467     for allegro, 1 for others) 
1485                                                  1468 
1486 This module supports autoprobe and multiple c    1469 This module supports autoprobe and multiple chips.
1487                                                  1470 
1488 Note: the binding of amplifier is dependent o    1471 Note: the binding of amplifier is dependent on hardware.
1489 If there is no sound even though all channels    1472 If there is no sound even though all channels are unmuted, try to
1490 specify other gpio connection via amp_gpio op    1473 specify other gpio connection via amp_gpio option. 
1491 For example, a Panasonic notebook might need     1474 For example, a Panasonic notebook might need ``amp_gpio=0x0d``
1492 option.                                          1475 option.
1493                                                  1476 
1494 The power-management is supported.               1477 The power-management is supported.
1495                                                  1478 
1496 Module snd-mia                                   1479 Module snd-mia
1497 ---------------                                  1480 ---------------
1498                                                  1481 
1499 Module for Echoaudio Mia                         1482 Module for Echoaudio Mia
1500                                                  1483 
1501 This module supports multiple cards.             1484 This module supports multiple cards.
1502 The driver requires the firmware loader suppo    1485 The driver requires the firmware loader support on kernel.
1503                                                  1486 
1504 Module snd-miro                                  1487 Module snd-miro
1505 ---------------                                  1488 ---------------
1506                                                  1489 
1507 Module for Miro soundcards: miroSOUND PCM 1 p    1490 Module for Miro soundcards: miroSOUND PCM 1 pro, miroSOUND PCM 12,
1508 miroSOUND PCM 20 Radio.                          1491 miroSOUND PCM 20 Radio.
1509                                                  1492 
1510 port                                             1493 port
1511     Port # (0x530,0x604,0xe80,0xf40)             1494     Port # (0x530,0x604,0xe80,0xf40)
1512 irq                                              1495 irq
1513     IRQ # (5,7,9,10,11)                          1496     IRQ # (5,7,9,10,11)
1514 dma1                                             1497 dma1
1515     1st dma # (0,1,3)                            1498     1st dma # (0,1,3)
1516 dma2                                             1499 dma2
1517     2nd dma # (0,1)                              1500     2nd dma # (0,1)
1518 mpu_port                                         1501 mpu_port
1519     MPU-401 port # (0x300,0x310,0x320,0x330)     1502     MPU-401 port # (0x300,0x310,0x320,0x330)
1520 mpu_irq                                          1503 mpu_irq
1521     MPU-401 irq # (5,7,9,10)                     1504     MPU-401 irq # (5,7,9,10)
1522 fm_port                                          1505 fm_port
1523     FM Port # (0x388)                            1506     FM Port # (0x388)
1524 wss                                              1507 wss
1525     enable WSS mode                              1508     enable WSS mode
1526 ide                                              1509 ide
1527     enable onboard ide support                   1510     enable onboard ide support
1528                                                  1511 
1529 Module snd-mixart                                1512 Module snd-mixart
1530 -----------------                                1513 -----------------
1531                                                  1514 
1532 Module for Digigram miXart8 sound cards.         1515 Module for Digigram miXart8 sound cards.
1533                                                  1516 
1534 This module supports multiple cards.             1517 This module supports multiple cards.
1535 Note: One miXart8 board will be represented a    1518 Note: One miXart8 board will be represented as 4 alsa cards.
1536 See Documentation/sound/cards/mixart.rst for     1519 See Documentation/sound/cards/mixart.rst for details.
1537                                                  1520 
1538 When the driver is compiled as a module and t    1521 When the driver is compiled as a module and the hotplug firmware
1539 is supported, the firmware data is loaded via    1522 is supported, the firmware data is loaded via hotplug automatically.
1540 Install the necessary firmware files in alsa-    1523 Install the necessary firmware files in alsa-firmware package.
1541 When no hotplug fw loader is available, you n    1524 When no hotplug fw loader is available, you need to load the
1542 firmware via mixartloader utility in alsa-too    1525 firmware via mixartloader utility in alsa-tools package.
1543                                                  1526 
1544 Module snd-mona                                  1527 Module snd-mona
1545 ---------------                                  1528 ---------------
1546                                                  1529 
1547 Module for Echoaudio Mona                        1530 Module for Echoaudio Mona
1548                                                  1531 
1549 This module supports multiple cards.             1532 This module supports multiple cards.
1550 The driver requires the firmware loader suppo    1533 The driver requires the firmware loader support on kernel.
1551                                                  1534 
1552 Module snd-mpu401                                1535 Module snd-mpu401
1553 -----------------                                1536 -----------------
1554                                                  1537 
1555 Module for MPU-401 UART devices.                 1538 Module for MPU-401 UART devices.
1556                                                  1539 
1557 port                                             1540 port
1558     port number or -1 (disable)                  1541     port number or -1 (disable)
1559 irq                                              1542 irq
1560     IRQ number or -1 (disable)                   1543     IRQ number or -1 (disable)
1561 pnp                                              1544 pnp
1562     PnP detection - 0 = disable, 1 = enable (    1545     PnP detection - 0 = disable, 1 = enable (default)
1563                                                  1546 
1564 This module supports multiple devices and PnP    1547 This module supports multiple devices and PnP.
1565                                                  1548 
1566 Module snd-msnd-classic                          1549 Module snd-msnd-classic
1567 -----------------------                          1550 -----------------------
1568                                                  1551 
1569 Module for Turtle Beach MultiSound Classic, T    1552 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1570 soundcards.                                      1553 soundcards.
1571                                                  1554 
1572 io                                               1555 io
1573     Port # for msnd-classic card                 1556     Port # for msnd-classic card
1574 irq                                              1557 irq
1575     IRQ # for msnd-classic card                  1558     IRQ # for msnd-classic card
1576 mem                                              1559 mem
1577     Memory address (0xb0000, 0xc8000, 0xd0000    1560     Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or 0xe8000)
1578 write_ndelay                                     1561 write_ndelay
1579     enable write ndelay (default = 1)            1562     enable write ndelay (default = 1)
1580 calibrate_signal                                 1563 calibrate_signal
1581     calibrate signal (default = 0)               1564     calibrate signal (default = 0)
1582 isapnp                                           1565 isapnp
1583     ISA PnP detection - 0 = disable, 1 = enab    1566     ISA PnP detection - 0 = disable, 1 = enable (default)
1584 digital                                          1567 digital
1585     Digital daughterboard present (default =     1568     Digital daughterboard present (default = 0)
1586 cfg                                              1569 cfg
1587     Config port (0x250, 0x260 or 0x270) defau    1570     Config port (0x250, 0x260 or 0x270) default = PnP
1588 reset                                            1571 reset
1589     Reset all devices                            1572     Reset all devices
1590 mpu_io                                           1573 mpu_io
1591     MPU401 I/O port                              1574     MPU401 I/O port
1592 mpu_irq                                          1575 mpu_irq
1593     MPU401 irq#                                  1576     MPU401 irq#
1594 ide_io0                                          1577 ide_io0
1595     IDE port #0                                  1578     IDE port #0
1596 ide_io1                                          1579 ide_io1
1597     IDE port #1                                  1580     IDE port #1
1598 ide_irq                                          1581 ide_irq
1599     IDE irq#                                     1582     IDE irq#
1600 joystick_io                                      1583 joystick_io
1601     Joystick I/O port                            1584     Joystick I/O port
1602                                                  1585 
1603 The driver requires firmware files ``turtlebe    1586 The driver requires firmware files ``turtlebeach/msndinit.bin`` and
1604 ``turtlebeach/msndperm.bin`` in the proper fi    1587 ``turtlebeach/msndperm.bin`` in the proper firmware directory.
1605                                                  1588 
1606 See Documentation/sound/cards/multisound.sh f    1589 See Documentation/sound/cards/multisound.sh for important information
1607 about this driver.  Note that it has been dis    1590 about this driver.  Note that it has been discontinued, but the 
1608 Voyetra Turtle Beach knowledge base entry for    1591 Voyetra Turtle Beach knowledge base entry for it is still available
1609 at                                               1592 at
1610 https://www.turtlebeach.com                      1593 https://www.turtlebeach.com
1611                                                  1594 
1612 Module snd-msnd-pinnacle                         1595 Module snd-msnd-pinnacle
1613 ------------------------                         1596 ------------------------
1614                                                  1597 
1615 Module for Turtle Beach MultiSound Pinnacle/F    1598 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1616                                                  1599 
1617 io                                               1600 io
1618     Port # for pinnacle/fiji card                1601     Port # for pinnacle/fiji card
1619 irq                                              1602 irq
1620     IRQ # for pinnalce/fiji card                 1603     IRQ # for pinnalce/fiji card
1621 mem                                              1604 mem
1622     Memory address (0xb0000, 0xc8000, 0xd0000    1605     Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or 0xe8000)
1623 write_ndelay                                     1606 write_ndelay
1624     enable write ndelay (default = 1)            1607     enable write ndelay (default = 1)
1625 calibrate_signal                                 1608 calibrate_signal
1626     calibrate signal (default = 0)               1609     calibrate signal (default = 0)
1627 isapnp                                           1610 isapnp
1628     ISA PnP detection - 0 = disable, 1 = enab    1611     ISA PnP detection - 0 = disable, 1 = enable (default)
1629                                                  1612 
1630 The driver requires firmware files ``turtlebe    1613 The driver requires firmware files ``turtlebeach/pndspini.bin`` and
1631 ``turtlebeach/pndsperm.bin`` in the proper fi    1614 ``turtlebeach/pndsperm.bin`` in the proper firmware directory.
1632                                                  1615 
1633 Module snd-mtpav                                 1616 Module snd-mtpav
1634 ----------------                                 1617 ----------------
1635                                                  1618 
1636 Module for MOTU MidiTimePiece AV multiport MI    1619 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1637 port).                                           1620 port).
1638                                                  1621 
1639 port                                             1622 port
1640     I/O port # for MTPAV (0x378,0x278, defaul    1623     I/O port # for MTPAV (0x378,0x278, default=0x378)
1641 irq                                              1624 irq
1642     IRQ # for MTPAV (7,5, default=7)             1625     IRQ # for MTPAV (7,5, default=7)
1643 hwports                                          1626 hwports
1644     number of supported hardware ports, defau    1627     number of supported hardware ports, default=8.
1645                                                  1628 
1646 Module supports only 1 card.  This module has    1629 Module supports only 1 card.  This module has no enable option.
1647                                                  1630 
1648 Module snd-mts64                                 1631 Module snd-mts64
1649 ----------------                                 1632 ----------------
1650                                                  1633 
1651 Module for Ego Systems (ESI) Miditerminal 414    1634 Module for Ego Systems (ESI) Miditerminal 4140
1652                                                  1635 
1653 This module supports multiple devices.           1636 This module supports multiple devices.
1654 Requires parport (``CONFIG_PARPORT``).           1637 Requires parport (``CONFIG_PARPORT``).
1655                                                  1638 
1656 Module snd-nm256                                 1639 Module snd-nm256
1657 ----------------                                 1640 ----------------
1658                                                  1641 
1659 Module for NeoMagic NM256AV/ZX chips             1642 Module for NeoMagic NM256AV/ZX chips
1660                                                  1643 
1661 playback_bufsize                                 1644 playback_bufsize
1662     max playback frame size in kB (4-128kB)      1645     max playback frame size in kB (4-128kB)
1663 capture_bufsize                                  1646 capture_bufsize
1664     max capture frame size in kB (4-128kB)       1647     max capture frame size in kB (4-128kB)
1665 force_ac97                                       1648 force_ac97
1666     0 or 1 (disabled by default)                 1649     0 or 1 (disabled by default)
1667 buffer_top                                       1650 buffer_top
1668     specify buffer top address                   1651     specify buffer top address
1669 use_cache                                        1652 use_cache
1670     0 or 1 (disabled by default)                 1653     0 or 1 (disabled by default)
1671 vaio_hack                                        1654 vaio_hack
1672     alias buffer_top=0x25a800                    1655     alias buffer_top=0x25a800
1673 reset_workaround                                 1656 reset_workaround
1674     enable AC97 RESET workaround for some lap    1657     enable AC97 RESET workaround for some laptops
1675 reset_workaround2                                1658 reset_workaround2
1676     enable extended AC97 RESET workaround for    1659     enable extended AC97 RESET workaround for some other laptops
1677                                                  1660 
1678 This module supports one chip and autoprobe.     1661 This module supports one chip and autoprobe.
1679                                                  1662 
1680 The power-management is supported.               1663 The power-management is supported.
1681                                                  1664 
1682 Note: on some notebooks the buffer address ca    1665 Note: on some notebooks the buffer address cannot be detected
1683 automatically, or causes hang-up during initi    1666 automatically, or causes hang-up during initialization.
1684 In such a case, specify the buffer top addres    1667 In such a case, specify the buffer top address explicitly via
1685 the buffer_top option.                           1668 the buffer_top option.
1686 For example,                                     1669 For example,
1687 Sony F250: buffer_top=0x25a800                   1670 Sony F250: buffer_top=0x25a800
1688 Sony F270: buffer_top=0x272800                   1671 Sony F270: buffer_top=0x272800
1689 The driver supports only ac97 codec.  It's po    1672 The driver supports only ac97 codec.  It's possible to force
1690 to initialize/use ac97 although it's not dete    1673 to initialize/use ac97 although it's not detected.  In such a
1691 case, use ``force_ac97=1`` option - but *NO*     1674 case, use ``force_ac97=1`` option - but *NO* guarantee whether it
1692 works!                                           1675 works!
1693                                                  1676 
1694 Note: The NM256 chip can be linked internally    1677 Note: The NM256 chip can be linked internally with non-AC97
1695 codecs.  This driver supports only the AC97 c    1678 codecs.  This driver supports only the AC97 codec, and won't work
1696 with machines with other (most likely CS423x     1679 with machines with other (most likely CS423x or OPL3SAx) chips,
1697 even though the device is detected in lspci.     1680 even though the device is detected in lspci.  In such a case, try
1698 other drivers, e.g. snd-cs4232 or snd-opl3sa2    1681 other drivers, e.g. snd-cs4232 or snd-opl3sa2.  Some has ISA-PnP
1699 but some doesn't have ISA PnP.  You'll need t    1682 but some doesn't have ISA PnP.  You'll need to specify ``isapnp=0``
1700 and proper hardware parameters in the case wi    1683 and proper hardware parameters in the case without ISA PnP.
1701                                                  1684 
1702 Note: some laptops need a workaround for AC97    1685 Note: some laptops need a workaround for AC97 RESET.  For the
1703 known hardware like Dell Latitude LS and Sony    1686 known hardware like Dell Latitude LS and Sony PCG-F305, this
1704 workaround is enabled automatically.  For oth    1687 workaround is enabled automatically.  For other laptops with a
1705 hard freeze, you can try ``reset_workaround=1    1688 hard freeze, you can try ``reset_workaround=1`` option.
1706                                                  1689 
1707 Note: Dell Latitude CSx laptops have another     1690 Note: Dell Latitude CSx laptops have another problem regarding
1708 AC97 RESET.  On these laptops, reset_workarou    1691 AC97 RESET.  On these laptops, reset_workaround2 option is
1709 turned on as default.  This option is worth t    1692 turned on as default.  This option is worth to try if the
1710 previous reset_workaround option doesn't help    1693 previous reset_workaround option doesn't help.
1711                                                  1694 
1712 Note: This driver is really crappy.  It's a p    1695 Note: This driver is really crappy.  It's a porting from the
1713 OSS driver, which is a result of black-magic     1696 OSS driver, which is a result of black-magic reverse engineering.
1714 The detection of codec will fail if the drive    1697 The detection of codec will fail if the driver is loaded *after*
1715 X-server as described above.  You might be ab    1698 X-server as described above.  You might be able to force to load
1716 the module, but it may result in hang-up.   H    1699 the module, but it may result in hang-up.   Hence, make sure that
1717 you load this module *before* X if you encoun    1700 you load this module *before* X if you encounter this kind of
1718 problem.                                         1701 problem.
1719                                                  1702 
1720 Module snd-opl3sa2                               1703 Module snd-opl3sa2
1721 ------------------                               1704 ------------------
1722                                                  1705 
1723 Module for Yamaha OPL3-SA2/SA3 sound cards.      1706 Module for Yamaha OPL3-SA2/SA3 sound cards.
1724                                                  1707 
1725 isapnp                                           1708 isapnp
1726     ISA PnP detection - 0 = disable, 1 = enab    1709     ISA PnP detection - 0 = disable, 1 = enable (default)
1727                                                  1710 
1728 with ``isapnp=0``, the following options are     1711 with ``isapnp=0``, the following options are available:
1729                                                  1712 
1730 port                                             1713 port
1731     control port # for OPL3-SA chip (0x370)      1714     control port # for OPL3-SA chip (0x370)
1732 sb_port                                          1715 sb_port
1733     SB port # for OPL3-SA chip (0x220,0x240)     1716     SB port # for OPL3-SA chip (0x220,0x240)
1734 wss_port                                         1717 wss_port
1735     WSS port # for OPL3-SA chip (0x530,0xe80,    1718     WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1736 midi_port                                        1719 midi_port
1737     port # for MPU-401 UART (0x300,0x330), -1    1720     port # for MPU-401 UART (0x300,0x330), -1 = disable
1738 fm_port                                          1721 fm_port
1739     FM port # for OPL3-SA chip (0x388), -1 =     1722     FM port # for OPL3-SA chip (0x388), -1 = disable
1740 irq                                              1723 irq
1741     IRQ # for OPL3-SA chip (5,7,9,10)            1724     IRQ # for OPL3-SA chip (5,7,9,10)
1742 dma1                                             1725 dma1
1743     first DMA # for Yamaha OPL3-SA chip (0,1,    1726     first DMA # for Yamaha OPL3-SA chip (0,1,3)
1744 dma2                                             1727 dma2
1745     second DMA # for Yamaha OPL3-SA chip (0,1    1728     second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1746                                                  1729 
1747 This module supports multiple cards and ISA P    1730 This module supports multiple cards and ISA PnP.  It does not support
1748 autoprobe (if ISA PnP is not used) thus all p    1731 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1749                                                  1732 
1750 The power-management is supported.               1733 The power-management is supported.
1751                                                  1734 
1752 Module snd-opti92x-ad1848                        1735 Module snd-opti92x-ad1848
1753 -------------------------                        1736 -------------------------
1754                                                  1737 
1755 Module for sound cards based on OPTi 82c92x a    1738 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1756 Module works with OAK Mozart cards as well.      1739 Module works with OAK Mozart cards as well.
1757                                                  1740 
1758 isapnp                                           1741 isapnp
1759     ISA PnP detection - 0 = disable, 1 = enab    1742     ISA PnP detection - 0 = disable, 1 = enable (default)
1760                                                  1743 
1761 with ``isapnp=0``, the following options are     1744 with ``isapnp=0``, the following options are available:
1762                                                  1745 
1763 port                                             1746 port
1764     port # for WSS chip (0x530,0xe80,0xf40,0x    1747     port # for WSS chip (0x530,0xe80,0xf40,0x604)
1765 mpu_port                                         1748 mpu_port
1766     port # for MPU-401 UART (0x300,0x310,0x32    1749     port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1767 fm_port                                          1750 fm_port
1768     port # for OPL3 device (0x388)               1751     port # for OPL3 device (0x388)
1769 irq                                              1752 irq
1770     IRQ # for WSS chip (5,7,9,10,11)             1753     IRQ # for WSS chip (5,7,9,10,11)
1771 mpu_irq                                          1754 mpu_irq
1772     IRQ # for MPU-401 UART (5,7,9,10)            1755     IRQ # for MPU-401 UART (5,7,9,10)
1773 dma1                                             1756 dma1
1774     first DMA # for WSS chip (0,1,3)             1757     first DMA # for WSS chip (0,1,3)
1775                                                  1758 
1776 This module supports only one card, autoprobe    1759 This module supports only one card, autoprobe and PnP.
1777                                                  1760 
1778 Module snd-opti92x-cs4231                        1761 Module snd-opti92x-cs4231
1779 -------------------------                        1762 -------------------------
1780                                                  1763 
1781 Module for sound cards based on OPTi 82c92x a    1764 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1782                                                  1765 
1783 isapnp                                           1766 isapnp
1784     ISA PnP detection - 0 = disable, 1 = enab    1767     ISA PnP detection - 0 = disable, 1 = enable (default)
1785                                                  1768 
1786 with ``isapnp=0``, the following options are     1769 with ``isapnp=0``, the following options are available:
1787                                                  1770 
1788 port                                             1771 port
1789     port # for WSS chip (0x530,0xe80,0xf40,0x    1772     port # for WSS chip (0x530,0xe80,0xf40,0x604)
1790 mpu_port                                         1773 mpu_port
1791     port # for MPU-401 UART (0x300,0x310,0x32    1774     port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1792 fm_port                                          1775 fm_port
1793     port # for OPL3 device (0x388)               1776     port # for OPL3 device (0x388)
1794 irq                                              1777 irq
1795     IRQ # for WSS chip (5,7,9,10,11)             1778     IRQ # for WSS chip (5,7,9,10,11)
1796 mpu_irq                                          1779 mpu_irq
1797     IRQ # for MPU-401 UART (5,7,9,10)            1780     IRQ # for MPU-401 UART (5,7,9,10)
1798 dma1                                             1781 dma1
1799     first DMA # for WSS chip (0,1,3)             1782     first DMA # for WSS chip (0,1,3)
1800 dma2                                             1783 dma2
1801     second DMA # for WSS chip (0,1,3)            1784     second DMA # for WSS chip (0,1,3)
1802                                                  1785 
1803 This module supports only one card, autoprobe    1786 This module supports only one card, autoprobe and PnP.
1804                                                  1787 
1805 Module snd-opti93x                               1788 Module snd-opti93x
1806 ------------------                               1789 ------------------
1807                                                  1790 
1808 Module for sound cards based on OPTi 82c93x c    1791 Module for sound cards based on OPTi 82c93x chips.
1809                                                  1792 
1810 isapnp                                           1793 isapnp
1811     ISA PnP detection - 0 = disable, 1 = enab    1794     ISA PnP detection - 0 = disable, 1 = enable (default)
1812                                                  1795 
1813 with ``isapnp=0``, the following options are     1796 with ``isapnp=0``, the following options are available:
1814                                                  1797 
1815 port                                             1798 port
1816     port # for WSS chip (0x530,0xe80,0xf40,0x    1799     port # for WSS chip (0x530,0xe80,0xf40,0x604)
1817 mpu_port                                         1800 mpu_port
1818     port # for MPU-401 UART (0x300,0x310,0x32    1801     port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1819 fm_port                                          1802 fm_port
1820     port # for OPL3 device (0x388)               1803     port # for OPL3 device (0x388)
1821 irq                                              1804 irq
1822     IRQ # for WSS chip (5,7,9,10,11)             1805     IRQ # for WSS chip (5,7,9,10,11)
1823 mpu_irq                                          1806 mpu_irq
1824     IRQ # for MPU-401 UART (5,7,9,10)            1807     IRQ # for MPU-401 UART (5,7,9,10)
1825 dma1                                             1808 dma1
1826     first DMA # for WSS chip (0,1,3)             1809     first DMA # for WSS chip (0,1,3)
1827 dma2                                             1810 dma2
1828     second DMA # for WSS chip (0,1,3)            1811     second DMA # for WSS chip (0,1,3)
1829                                                  1812 
1830 This module supports only one card, autoprobe    1813 This module supports only one card, autoprobe and PnP.
1831                                                  1814 
1832 Module snd-oxygen                                1815 Module snd-oxygen
1833 -----------------                                1816 -----------------
1834                                                  1817 
1835 Module for sound cards based on the C-Media C    1818 Module for sound cards based on the C-Media CMI8786/8787/8788 chip:
1836                                                  1819 
1837 * Asound A-8788                                  1820 * Asound A-8788
1838 * Asus Xonar DG/DGX                              1821 * Asus Xonar DG/DGX
1839 * AuzenTech X-Meridian                           1822 * AuzenTech X-Meridian
1840 * AuzenTech X-Meridian 2G                        1823 * AuzenTech X-Meridian 2G
1841 * Bgears b-Enspirer                              1824 * Bgears b-Enspirer
1842 * Club3D Theatron DTS                            1825 * Club3D Theatron DTS
1843 * HT-Omega Claro (plus)                          1826 * HT-Omega Claro (plus)
1844 * HT-Omega Claro halo (XT)                       1827 * HT-Omega Claro halo (XT)
1845 * Kuroutoshikou CMI8787-HG2PCI                   1828 * Kuroutoshikou CMI8787-HG2PCI
1846 * Razer Barracuda AC-1                           1829 * Razer Barracuda AC-1
1847 * Sondigo Inferno                                1830 * Sondigo Inferno
1848 * TempoTec HiFier Fantasia                       1831 * TempoTec HiFier Fantasia
1849 * TempoTec HiFier Serenade                       1832 * TempoTec HiFier Serenade
1850                                                  1833     
1851 This module supports autoprobe and multiple c    1834 This module supports autoprobe and multiple cards.
1852                                                  1835   
1853 Module snd-pcsp                                  1836 Module snd-pcsp
1854 ---------------                                  1837 ---------------
1855                                                  1838 
1856 Module for internal PC-Speaker.                  1839 Module for internal PC-Speaker.
1857                                                  1840 
1858 nopcm                                            1841 nopcm
1859     Disable PC-Speaker PCM sound. Only beeps     1842     Disable PC-Speaker PCM sound. Only beeps remain.
1860 nforce_wa                                        1843 nforce_wa
1861     enable NForce chipset workaround. Expect     1844     enable NForce chipset workaround. Expect bad sound.
1862                                                  1845 
1863 This module supports system beeps, some kind     1846 This module supports system beeps, some kind of PCM playback and
1864 even a few mixer controls.                       1847 even a few mixer controls.
1865                                                  1848 
1866 Module snd-pcxhr                                 1849 Module snd-pcxhr
1867 ----------------                                 1850 ----------------
1868                                                  1851 
1869 Module for Digigram PCXHR boards                 1852 Module for Digigram PCXHR boards
1870                                                  1853 
1871 This module supports multiple cards.             1854 This module supports multiple cards.
1872                                                  1855 
1873 Module snd-portman2x4                            1856 Module snd-portman2x4
1874 ---------------------                            1857 ---------------------
1875                                                  1858 
1876 Module for Midiman Portman 2x4 parallel port     1859 Module for Midiman Portman 2x4 parallel port MIDI interface
1877                                                  1860 
1878 This module supports multiple cards.             1861 This module supports multiple cards.
1879                                                  1862 
1880 Module snd-powermac (on ppc only)                1863 Module snd-powermac (on ppc only)
1881 ---------------------------------                1864 ---------------------------------
1882                                                  1865 
1883 Module for PowerMac, iMac and iBook on-board     1866 Module for PowerMac, iMac and iBook on-board soundchips
1884                                                  1867 
1885 enable_beep                                      1868 enable_beep
1886     enable beep using PCM (enabled as default    1869     enable beep using PCM (enabled as default)
1887                                                  1870 
1888 Module supports autoprobe a chip.                1871 Module supports autoprobe a chip.
1889                                                  1872 
1890 Note: the driver may have problems regarding     1873 Note: the driver may have problems regarding endianness.
1891                                                  1874 
1892 The power-management is supported.               1875 The power-management is supported.
1893                                                  1876 
1894 Module snd-pxa2xx-ac97 (on arm only)             1877 Module snd-pxa2xx-ac97 (on arm only)
1895 ------------------------------------             1878 ------------------------------------
1896                                                  1879 
1897 Module for AC97 driver for the Intel PXA2xx c    1880 Module for AC97 driver for the Intel PXA2xx chip
1898                                                  1881 
1899 For ARM architecture only.                       1882 For ARM architecture only.
1900                                                  1883 
1901 The power-management is supported.               1884 The power-management is supported.
1902                                                  1885 
1903 Module snd-riptide                               1886 Module snd-riptide
1904 ------------------                               1887 ------------------
1905                                                  1888 
1906 Module for Conexant Riptide chip                 1889 Module for Conexant Riptide chip
1907                                                  1890 
1908 joystick_port                                    1891 joystick_port
1909     Joystick port # (default: 0x200)             1892     Joystick port # (default: 0x200)
1910 mpu_port                                         1893 mpu_port
1911     MPU401 port # (default: 0x330)               1894     MPU401 port # (default: 0x330)
1912 opl3_port                                        1895 opl3_port
1913     OPL3 port # (default: 0x388)                 1896     OPL3 port # (default: 0x388)
1914                                                  1897 
1915 This module supports multiple cards.             1898 This module supports multiple cards.
1916 The driver requires the firmware loader suppo    1899 The driver requires the firmware loader support on kernel.
1917 You need to install the firmware file ``ripti    1900 You need to install the firmware file ``riptide.hex`` to the standard
1918 firmware path (e.g. /lib/firmware).              1901 firmware path (e.g. /lib/firmware).
1919                                                  1902 
1920 Module snd-rme32                                 1903 Module snd-rme32
1921 ----------------                                 1904 ----------------
1922                                                  1905 
1923 Module for RME Digi32, Digi32 Pro and Digi32/    1906 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32, 
1924 Prodif96 and Prodif Gold) sound cards.           1907 Prodif96 and Prodif Gold) sound cards.
1925                                                  1908 
1926 This module supports multiple cards.             1909 This module supports multiple cards.
1927                                                  1910 
1928 Module snd-rme96                                 1911 Module snd-rme96
1929 ----------------                                 1912 ----------------
1930                                                  1913 
1931 Module for RME Digi96, Digi96/8 and Digi96/8     1914 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1932                                                  1915 
1933 This module supports multiple cards.             1916 This module supports multiple cards.
1934                                                  1917 
1935 Module snd-rme9652                               1918 Module snd-rme9652
1936 ------------------                               1919 ------------------
1937                                                  1920 
1938 Module for RME Digi9652 (Hammerfall, Hammerfa    1921 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1939                                                  1922 
1940 precise_ptr                                      1923 precise_ptr
1941     Enable precise pointer (doesn't work reli    1924     Enable precise pointer (doesn't work reliably). (default = 0)
1942                                                  1925 
1943 This module supports multiple cards.             1926 This module supports multiple cards.
1944                                                  1927 
1945 Note: snd-page-alloc module does the job whic    1928 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1946 module did formerly.  It will allocate the bu    1929 module did formerly.  It will allocate the buffers in advance
1947 when any RME9652 cards are found.  To make th    1930 when any RME9652 cards are found.  To make the buffer
1948 allocation sure, load snd-page-alloc module i    1931 allocation sure, load snd-page-alloc module in the early
1949 stage of boot sequence.  See `Early Buffer Al    1932 stage of boot sequence.  See `Early Buffer Allocation`_
1950 section.                                         1933 section.
1951                                                  1934 
1952 Module snd-sa11xx-uda1341 (on arm only)          1935 Module snd-sa11xx-uda1341 (on arm only)
1953 ---------------------------------------          1936 ---------------------------------------
1954                                                  1937 
1955 Module for Philips UDA1341TS on Compaq iPAQ H    1938 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1956                                                  1939 
1957 Module supports only one card.                   1940 Module supports only one card.
1958 Module has no enable and index options.          1941 Module has no enable and index options.
1959                                                  1942 
1960 The power-management is supported.               1943 The power-management is supported.
1961                                                  1944 
1962 Module snd-sb8                                   1945 Module snd-sb8
1963 --------------                                   1946 --------------
1964                                                  1947 
1965 Module for 8-bit SoundBlaster cards: SoundBla    1948 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0, SoundBlaster 2.0,
1966 SoundBlaster Pro                                 1949 SoundBlaster Pro
1967                                                  1950 
1968 port                                             1951 port
1969     port # for SB DSP chip (0x220,0x240,0x260    1952     port # for SB DSP chip (0x220,0x240,0x260)
1970 irq                                              1953 irq
1971     IRQ # for SB DSP chip (5,7,9,10)             1954     IRQ # for SB DSP chip (5,7,9,10)
1972 dma8                                             1955 dma8
1973     DMA # for SB DSP chip (1,3)                  1956     DMA # for SB DSP chip (1,3)
1974                                                  1957 
1975 This module supports multiple cards and autop    1958 This module supports multiple cards and autoprobe.
1976                                                  1959 
1977 The power-management is supported.               1960 The power-management is supported.
1978                                                  1961 
1979 Module snd-sb16 and snd-sbawe                    1962 Module snd-sb16 and snd-sbawe
1980 -----------------------------                    1963 -----------------------------
1981                                                  1964 
1982 Module for 16-bit SoundBlaster cards: SoundBl    1965 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1983 SoundBlaster AWE 32 (PnP), SoundBlaster AWE 6    1966 SoundBlaster AWE 32 (PnP), SoundBlaster AWE 64 PnP
1984                                                  1967 
1985 mic_agc                                          1968 mic_agc
1986     Mic Auto-Gain-Control - 0 = disable, 1 =     1969     Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1987 csp                                              1970 csp
1988     ASP/CSP chip support - 0 = disable (defau    1971     ASP/CSP chip support - 0 = disable (default), 1 = enable
1989 isapnp                                           1972 isapnp
1990     ISA PnP detection - 0 = disable, 1 = enab    1973     ISA PnP detection - 0 = disable, 1 = enable (default)
1991                                                  1974 
1992 with isapnp=0, the following options are avai    1975 with isapnp=0, the following options are available:
1993                                                  1976 
1994 port                                             1977 port
1995     port # for SB DSP 4.x chip (0x220,0x240,0    1978     port # for SB DSP 4.x chip (0x220,0x240,0x260)
1996 mpu_port                                         1979 mpu_port
1997     port # for MPU-401 UART (0x300,0x330), -1    1980     port # for MPU-401 UART (0x300,0x330), -1 = disable
1998 awe_port                                         1981 awe_port
1999     base port # for EMU8000 synthesizer (0x62    1982     base port # for EMU8000 synthesizer (0x620,0x640,0x660) (snd-sbawe
2000     module only)                                 1983     module only)
2001 irq                                              1984 irq
2002     IRQ # for SB DSP 4.x chip (5,7,9,10)         1985     IRQ # for SB DSP 4.x chip (5,7,9,10)
2003 dma8                                             1986 dma8
2004     8-bit DMA # for SB DSP 4.x chip (0,1,3)      1987     8-bit DMA # for SB DSP 4.x chip (0,1,3)
2005 dma16                                            1988 dma16
2006     16-bit DMA # for SB DSP 4.x chip (5,6,7)     1989     16-bit DMA # for SB DSP 4.x chip (5,6,7)
2007                                                  1990 
2008 This module supports multiple cards, autoprob    1991 This module supports multiple cards, autoprobe and ISA PnP.
2009                                                  1992 
2010 Note: To use Vibra16X cards in 16-bit half du    1993 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
2011 disable 16bit DMA with dma16 = -1 module para    1994 disable 16bit DMA with dma16 = -1 module parameter.
2012 Also, all Sound Blaster 16 type cards can ope    1995 Also, all Sound Blaster 16 type cards can operate in 16-bit
2013 half duplex mode through 8-bit DMA channel by    1996 half duplex mode through 8-bit DMA channel by disabling their
2014 16-bit DMA channel.                              1997 16-bit DMA channel.
2015                                                  1998 
2016 The power-management is supported.               1999 The power-management is supported.
2017                                                  2000 
2018 Module snd-sc6000                                2001 Module snd-sc6000
2019 -----------------                                2002 -----------------
2020                                                  2003 
2021 Module for Gallant SC-6000 soundcard and late    2004 Module for Gallant SC-6000 soundcard and later models: SC-6600 and
2022 SC-7000.                                         2005 SC-7000.
2023                                                  2006 
2024 port                                             2007 port
2025     Port # (0x220 or 0x240)                      2008     Port # (0x220 or 0x240)
2026 mss_port                                         2009 mss_port
2027     MSS Port # (0x530 or 0xe80)                  2010     MSS Port # (0x530 or 0xe80)
2028 irq                                              2011 irq
2029     IRQ # (5,7,9,10,11)                          2012     IRQ # (5,7,9,10,11)
2030 mpu_irq                                          2013 mpu_irq
2031     MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401     2014     MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
2032 dma                                              2015 dma
2033     DMA # (1,3,0)                                2016     DMA # (1,3,0)
2034 joystick                                         2017 joystick
2035     Enable gameport - 0 = disable (default),     2018     Enable gameport - 0 = disable (default), 1 = enable
2036                                                  2019 
2037 This module supports multiple cards.             2020 This module supports multiple cards.
2038                                                  2021 
2039 This card is also known as Audio Excel DSP 16    2022 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
2040                                                  2023 
2041 Module snd-sscape                                2024 Module snd-sscape
2042 -----------------                                2025 -----------------
2043                                                  2026 
2044 Module for ENSONIQ SoundScape cards.             2027 Module for ENSONIQ SoundScape cards.
2045                                                  2028 
2046 port                                             2029 port
2047     Port # (PnP setup)                           2030     Port # (PnP setup)
2048 wss_port                                         2031 wss_port
2049     WSS Port # (PnP setup)                       2032     WSS Port # (PnP setup)
2050 irq                                              2033 irq
2051     IRQ # (PnP setup)                            2034     IRQ # (PnP setup)
2052 mpu_irq                                          2035 mpu_irq
2053     MPU-401 IRQ # (PnP setup)                    2036     MPU-401 IRQ # (PnP setup)
2054 dma                                              2037 dma
2055     DMA # (PnP setup)                            2038     DMA # (PnP setup)
2056 dma2                                             2039 dma2
2057     2nd DMA # (PnP setup, -1 to disable)         2040     2nd DMA # (PnP setup, -1 to disable)
2058 joystick                                         2041 joystick
2059     Enable gameport - 0 = disable (default),     2042     Enable gameport - 0 = disable (default), 1 = enable
2060                                                  2043 
2061 This module supports multiple cards.             2044 This module supports multiple cards.
2062                                                  2045 
2063 The driver requires the firmware loader suppo    2046 The driver requires the firmware loader support on kernel.
2064                                                  2047 
2065 Module snd-sun-amd7930 (on sparc only)           2048 Module snd-sun-amd7930 (on sparc only)
2066 --------------------------------------           2049 --------------------------------------
2067                                                  2050 
2068 Module for AMD7930 sound chips found on Sparc    2051 Module for AMD7930 sound chips found on Sparcs.
2069                                                  2052 
2070 This module supports multiple cards.             2053 This module supports multiple cards.
2071                                                  2054 
2072 Module snd-sun-cs4231 (on sparc only)            2055 Module snd-sun-cs4231 (on sparc only)
2073 -------------------------------------            2056 -------------------------------------
2074                                                  2057 
2075 Module for CS4231 sound chips found on Sparcs    2058 Module for CS4231 sound chips found on Sparcs.
2076                                                  2059 
2077 This module supports multiple cards.             2060 This module supports multiple cards.
2078                                                  2061 
2079 Module snd-sun-dbri (on sparc only)              2062 Module snd-sun-dbri (on sparc only)
2080 -----------------------------------              2063 -----------------------------------
2081                                                  2064 
2082 Module for DBRI sound chips found on Sparcs.     2065 Module for DBRI sound chips found on Sparcs.
2083                                                  2066 
2084 This module supports multiple cards.             2067 This module supports multiple cards.
2085                                                  2068 
2086 Module snd-wavefront                             2069 Module snd-wavefront
2087 --------------------                             2070 --------------------
2088                                                  2071 
2089 Module for Turtle Beach Maui, Tropez and Trop    2072 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
2090                                                  2073 
2091 use_cs4232_midi                                  2074 use_cs4232_midi
2092     Use CS4232 MPU-401 interface                 2075     Use CS4232 MPU-401 interface
2093     (inaccessibly located inside your compute    2076     (inaccessibly located inside your computer)
2094 isapnp                                           2077 isapnp
2095     ISA PnP detection - 0 = disable, 1 = enab    2078     ISA PnP detection - 0 = disable, 1 = enable (default)
2096                                                  2079 
2097 with isapnp=0, the following options are avai    2080 with isapnp=0, the following options are available:
2098                                                  2081 
2099 cs4232_pcm_port                                  2082 cs4232_pcm_port
2100     Port # for CS4232 PCM interface.             2083     Port # for CS4232 PCM interface.
2101 cs4232_pcm_irq                                   2084 cs4232_pcm_irq
2102     IRQ # for CS4232 PCM interface (5,7,9,11,    2085     IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
2103 cs4232_mpu_port                                  2086 cs4232_mpu_port
2104     Port # for CS4232 MPU-401 interface.         2087     Port # for CS4232 MPU-401 interface.
2105 cs4232_mpu_irq                                   2088 cs4232_mpu_irq
2106     IRQ # for CS4232 MPU-401 interface (9,11,    2089     IRQ # for CS4232 MPU-401 interface (9,11,12,15).
2107 ics2115_port                                     2090 ics2115_port
2108     Port # for ICS2115                           2091     Port # for ICS2115
2109 ics2115_irq                                      2092 ics2115_irq
2110     IRQ # for ICS2115                            2093     IRQ # for ICS2115
2111 fm_port                                          2094 fm_port
2112     FM OPL-3 Port #                              2095     FM OPL-3 Port #
2113 dma1                                             2096 dma1
2114     DMA1 # for CS4232 PCM interface.             2097     DMA1 # for CS4232 PCM interface.
2115 dma2                                             2098 dma2
2116     DMA2 # for CS4232 PCM interface.             2099     DMA2 # for CS4232 PCM interface.
2117                                                  2100 
2118 The below are options for wavefront_synth fea    2101 The below are options for wavefront_synth features:
2119                                                  2102 
2120 wf_raw                                           2103 wf_raw
2121     Assume that we need to boot the OS (defau    2104     Assume that we need to boot the OS (default:no);
2122     If yes, then during driver loading, the s    2105     If yes, then during driver loading, the state of the board is
2123     ignored, and we reset the board and load     2106     ignored, and we reset the board and load the firmware anyway.
2124 fx_raw                                           2107 fx_raw
2125     Assume that the FX process needs help (de    2108     Assume that the FX process needs help (default:yes);
2126     If false, we'll leave the FX processor in    2109     If false, we'll leave the FX processor in whatever state it is
2127     when the driver is loaded.  The default i    2110     when the driver is loaded.  The default is to download the
2128     microprogram and associated coefficients     2111     microprogram and associated coefficients to set it up for
2129     "default" operation, whatever that means.    2112     "default" operation, whatever that means.
2130 debug_default                                    2113 debug_default
2131     Debug parameters for card initialization     2114     Debug parameters for card initialization
2132 wait_usecs                                       2115 wait_usecs
2133     How long to wait without sleeping, usecs     2116     How long to wait without sleeping, usecs (default:150);
2134     This magic number seems to give pretty op    2117     This magic number seems to give pretty optimal throughput
2135     based on my limited experimentation.         2118     based on my limited experimentation. 
2136     If you want to play around with it and fi    2119     If you want to play around with it and find a better value, be
2137     my guest. Remember, the idea is to get a     2120     my guest. Remember, the idea is to get a number that causes us
2138     to just busy wait for as many WaveFront c    2121     to just busy wait for as many WaveFront commands as possible,
2139     without coming up with a number so large     2122     without coming up with a number so large that we hog the whole
2140     CPU.                                         2123     CPU. 
2141     Specifically, with this number, out of ab    2124     Specifically, with this number, out of about 134,000 status
2142     waits, only about 250 result in a sleep.     2125     waits, only about 250 result in a sleep. 
2143 sleep_interval                                   2126 sleep_interval
2144     How long to sleep when waiting for reply     2127     How long to sleep when waiting for reply (default: 100)
2145 sleep_tries                                      2128 sleep_tries
2146     How many times to try sleeping during a w    2129     How many times to try sleeping during a wait (default: 50)
2147 ospath                                           2130 ospath
2148     Pathname to processed ICS2115 OS firmware    2131     Pathname to processed ICS2115 OS firmware (default:wavefront.os);
2149     The path name of the ISC2115 OS firmware.    2132     The path name of the ISC2115 OS firmware.  In the recent
2150     version, it's handled via firmware loader    2133     version, it's handled via firmware loader framework, so it
2151     must be installed in the proper path, typ    2134     must be installed in the proper path, typically,
2152     /lib/firmware.                               2135     /lib/firmware.
2153 reset_time                                       2136 reset_time
2154     How long to wait for a reset to take effe    2137     How long to wait for a reset to take effect (default:2)
2155 ramcheck_time                                    2138 ramcheck_time
2156     How many seconds to wait for the RAM test    2139     How many seconds to wait for the RAM test (default:20)
2157 osrun_time                                       2140 osrun_time
2158     How many seconds to wait for the ICS2115     2141     How many seconds to wait for the ICS2115 OS (default:10)
2159                                                  2142 
2160 This module supports multiple cards and ISA P    2143 This module supports multiple cards and ISA PnP.
2161                                                  2144 
2162 Note: the firmware file ``wavefront.os`` was     2145 Note: the firmware file ``wavefront.os`` was located in the earlier
2163 version in /etc.  Now it's loaded via firmwar    2146 version in /etc.  Now it's loaded via firmware loader, and
2164 must be in the proper firmware path, such as     2147 must be in the proper firmware path, such as /lib/firmware.
2165 Copy (or symlink) the file appropriately if y    2148 Copy (or symlink) the file appropriately if you get an error
2166 regarding firmware downloading after upgradin    2149 regarding firmware downloading after upgrading the kernel.
2167                                                  2150 
2168 Module snd-sonicvibes                            2151 Module snd-sonicvibes
2169 ---------------------                            2152 ---------------------
2170                                                  2153 
2171 Module for S3 SonicVibes PCI sound cards.        2154 Module for S3 SonicVibes PCI sound cards.
2172 * PINE Schubert 32 PCI                           2155 * PINE Schubert 32 PCI
2173                                                  2156   
2174 reverb                                           2157 reverb
2175     Reverb Enable - 1 = enable, 0 = disable (    2158     Reverb Enable - 1 = enable, 0 = disable (default);
2176     SoundCard must have onboard SRAM for this    2159     SoundCard must have onboard SRAM for this.
2177 mge                                              2160 mge
2178     Mic Gain Enable - 1 = enable, 0 = disable    2161     Mic Gain Enable - 1 = enable, 0 = disable (default)
2179                                                  2162 
2180 This module supports multiple cards and autop    2163 This module supports multiple cards and autoprobe.
2181                                                  2164 
2182 Module snd-serial-u16550                         2165 Module snd-serial-u16550
2183 ------------------------                         2166 ------------------------
2184                                                  2167 
2185 Module for UART16550A serial MIDI ports.         2168 Module for UART16550A serial MIDI ports.
2186                                                  2169 
2187 port                                             2170 port
2188     port # for UART16550A chip                   2171     port # for UART16550A chip
2189 irq                                              2172 irq
2190     IRQ # for UART16550A chip, -1 = poll mode    2173     IRQ # for UART16550A chip, -1 = poll mode
2191 speed                                            2174 speed
2192     speed in bauds (9600,19200,38400,57600,11    2175     speed in bauds (9600,19200,38400,57600,115200)
2193     38400 = default                              2176     38400 = default
2194 base                                             2177 base
2195     base for divisor in bauds (57600,115200,2    2178     base for divisor in bauds (57600,115200,230400,460800)
2196     115200 = default                             2179     115200 = default
2197 outs                                             2180 outs
2198     number of MIDI ports in a serial port (1-    2181     number of MIDI ports in a serial port (1-4)
2199     1 = default                                  2182     1 = default
2200 adaptor                                          2183 adaptor
2201     Type of adaptor.                             2184     Type of adaptor.
2202         0 = Soundcanvas, 1 = MS-124T, 2 = MS-    2185         0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
2203         3 = MS-124W M/B, 4 = Generic             2186         3 = MS-124W M/B, 4 = Generic
2204                                                  2187 
2205 This module supports multiple cards. This mod    2188 This module supports multiple cards. This module does not support autoprobe
2206 thus the main port must be specified!!! Other    2189 thus the main port must be specified!!! Other options are optional.
2207                                                  2190 
2208 Module snd-trident                               2191 Module snd-trident
2209 ------------------                               2192 ------------------
2210                                                  2193 
2211 Module for Trident 4DWave DX/NX sound cards.     2194 Module for Trident 4DWave DX/NX sound cards.
2212 * Best Union  Miss Melody 4DWave PCI             2195 * Best Union  Miss Melody 4DWave PCI
2213 * HIS  4DWave PCI                                2196 * HIS  4DWave PCI
2214 * Warpspeed  ONSpeed 4DWave PCI                  2197 * Warpspeed  ONSpeed 4DWave PCI
2215 * AzTech  PCI 64-Q3D                             2198 * AzTech  PCI 64-Q3D
2216 * Addonics  SV 750                               2199 * Addonics  SV 750
2217 * CHIC  True Sound 4Dwave                        2200 * CHIC  True Sound 4Dwave
2218 * Shark  Predator4D-PCI                          2201 * Shark  Predator4D-PCI
2219 * Jaton  SonicWave 4D                            2202 * Jaton  SonicWave 4D
2220 * SiS SI7018 PCI Audio                           2203 * SiS SI7018 PCI Audio
2221 * Hoontech SoundTrack Digital 4DWave NX          2204 * Hoontech SoundTrack Digital 4DWave NX
2222                                                  2205                     
2223 pcm_channels                                     2206 pcm_channels
2224     max channels (voices) reserved for PCM       2207     max channels (voices) reserved for PCM
2225 wavetable_size                                   2208 wavetable_size
2226     max wavetable size in kB (4-?kb)             2209     max wavetable size in kB (4-?kb)
2227                                                  2210 
2228 This module supports multiple cards and autop    2211 This module supports multiple cards and autoprobe.
2229                                                  2212 
2230 The power-management is supported.               2213 The power-management is supported.
2231                                                  2214 
2232 Module snd-ua101                                 2215 Module snd-ua101
2233 ----------------                                 2216 ----------------
2234                                                  2217 
2235 Module for the Edirol UA-101/UA-1000 audio/MI    2218 Module for the Edirol UA-101/UA-1000 audio/MIDI interfaces.
2236                                                  2219 
2237 This module supports multiple devices, autopr    2220 This module supports multiple devices, autoprobe and hotplugging.
2238                                                  2221 
2239 Module snd-usb-audio                             2222 Module snd-usb-audio
2240 --------------------                             2223 --------------------
2241                                                  2224 
2242 Module for USB audio and USB MIDI devices.       2225 Module for USB audio and USB MIDI devices.
2243                                                  2226 
2244 vid                                              2227 vid
2245     Vendor ID for the device (optional)          2228     Vendor ID for the device (optional)
2246 pid                                              2229 pid
2247     Product ID for the device (optional)         2230     Product ID for the device (optional)
2248 nrpacks                                          2231 nrpacks
2249     Max. number of packets per URB (default:     2232     Max. number of packets per URB (default: 8)
2250 device_setup                                     2233 device_setup
2251     Device specific magic number (optional);     2234     Device specific magic number (optional);
2252     Influence depends on the device              2235     Influence depends on the device
2253     Default: 0x0000                              2236     Default: 0x0000 
2254 ignore_ctl_error                                 2237 ignore_ctl_error
2255     Ignore any USB-controller regarding mixer    2238     Ignore any USB-controller regarding mixer interface (default: no)
2256 autoclock                                        2239 autoclock
2257     Enable auto-clock selection for UAC2 devi    2240     Enable auto-clock selection for UAC2 devices (default: yes)
2258 quirk_alias                                      2241 quirk_alias
2259     Quirk alias list, pass strings like ``012    2242     Quirk alias list, pass strings like ``0123abcd:5678beef``, which
2260     applies the existing quirk for the device    2243     applies the existing quirk for the device 5678:beef to a new
2261     device 0123:abcd.                            2244     device 0123:abcd.
2262 implicit_fb                                      2245 implicit_fb
2263     Apply the generic implicit feedback sync     2246     Apply the generic implicit feedback sync mode.  When this is set
2264     and the playback stream sync mode is ASYN    2247     and the playback stream sync mode is ASYNC, the driver tries to
2265     tie an adjacent ASYNC capture stream as t    2248     tie an adjacent ASYNC capture stream as the implicit feedback
2266     source.  This is equivalent with quirk_fl    2249     source.  This is equivalent with quirk_flags bit 17.
2267 use_vmalloc                                      2250 use_vmalloc
2268     Use vmalloc() for allocations of the PCM     2251     Use vmalloc() for allocations of the PCM buffers (default: yes).
2269     For architectures with non-coherent memor    2252     For architectures with non-coherent memory like ARM or MIPS, the
2270     mmap access may give inconsistent results    2253     mmap access may give inconsistent results with vmalloc'ed
2271     buffers.  If mmap is used on such archite    2254     buffers.  If mmap is used on such architectures, turn off this
2272     option, so that the DMA-coherent buffers     2255     option, so that the DMA-coherent buffers are allocated and used
2273     instead.                                     2256     instead.
2274 delayed_register                                 2257 delayed_register
2275     The option is needed for devices that hav    2258     The option is needed for devices that have multiple streams
2276     defined in multiple USB interfaces.  The     2259     defined in multiple USB interfaces.  The driver may invoke
2277     registrations multiple times (once per in    2260     registrations multiple times (once per interface) and this may
2278     lead to the insufficient device enumerati    2261     lead to the insufficient device enumeration.
2279     This option receives an array of strings,    2262     This option receives an array of strings, and you can pass
2280     ID:INTERFACE like ``0123abcd:4`` for perf    2263     ID:INTERFACE like ``0123abcd:4`` for performing the delayed
2281     registration to the given device.  In thi    2264     registration to the given device.  In this example, when a USB
2282     device 0123:abcd is probed, the driver wa    2265     device 0123:abcd is probed, the driver waits the registration
2283     until the USB interface 4 gets probed.       2266     until the USB interface 4 gets probed.
2284     The driver prints a message like "Found p    2267     The driver prints a message like "Found post-registration device
2285     assignment: 1234abcd:04" for such a devic    2268     assignment: 1234abcd:04" for such a device, so that user can
2286     notice the need.                             2269     notice the need.
2287 quirk_flags                                      2270 quirk_flags
2288     Contains the bit flags for various device    2271     Contains the bit flags for various device specific workarounds.
2289     Applied to the corresponding card index.     2272     Applied to the corresponding card index.
2290                                                  2273 
2291         * bit 0: Skip reading sample rate for    2274         * bit 0: Skip reading sample rate for devices
2292         * bit 1: Create Media Controller API     2275         * bit 1: Create Media Controller API entries
2293         * bit 2: Allow alignment on audio sub    2276         * bit 2: Allow alignment on audio sub-slot at transfer
2294         * bit 3: Add length specifier to tran    2277         * bit 3: Add length specifier to transfers
2295         * bit 4: Start playback stream at fir    2278         * bit 4: Start playback stream at first in implement feedback mode
2296         * bit 5: Skip clock selector setup       2279         * bit 5: Skip clock selector setup
2297         * bit 6: Ignore errors from clock sou    2280         * bit 6: Ignore errors from clock source search
2298         * bit 7: Indicates ITF-USB DSD based     2281         * bit 7: Indicates ITF-USB DSD based DACs
2299         * bit 8: Add a delay of 20ms at each     2282         * bit 8: Add a delay of 20ms at each control message handling
2300         * bit 9: Add a delay of 1-2ms at each    2283         * bit 9: Add a delay of 1-2ms at each control message handling
2301         * bit 10: Add a delay of 5-6ms at eac    2284         * bit 10: Add a delay of 5-6ms at each control message handling
2302         * bit 11: Add a delay of 50ms at each    2285         * bit 11: Add a delay of 50ms at each interface setup
2303         * bit 12: Perform sample rate validat    2286         * bit 12: Perform sample rate validations at probe
2304         * bit 13: Disable runtime PM autosusp    2287         * bit 13: Disable runtime PM autosuspend
2305         * bit 14: Ignore errors for mixer acc    2288         * bit 14: Ignore errors for mixer access
2306         * bit 15: Support generic DSD raw U32    2289         * bit 15: Support generic DSD raw U32_BE format
2307         * bit 16: Set up the interface at fir    2290         * bit 16: Set up the interface at first like UAC1
2308         * bit 17: Apply the generic implicit     2291         * bit 17: Apply the generic implicit feedback sync mode
2309         * bit 18: Don't apply implicit feedba    2292         * bit 18: Don't apply implicit feedback sync mode
2310                                                  2293 
2311 This module supports multiple devices, autopr    2294 This module supports multiple devices, autoprobe and hotplugging.
2312                                                  2295 
2313 NB: ``nrpacks`` parameter can be modified dyn    2296 NB: ``nrpacks`` parameter can be modified dynamically via sysfs.
2314 Don't put the value over 20.  Changing via sy    2297 Don't put the value over 20.  Changing via sysfs has no sanity
2315 check.                                           2298 check.
2316                                                  2299 
2317 NB: ``ignore_ctl_error=1`` may help when you     2300 NB: ``ignore_ctl_error=1`` may help when you get an error at accessing
2318 the mixer element such as URB error -22.  Thi    2301 the mixer element such as URB error -22.  This happens on some
2319 buggy USB device or the controller.  This wor    2302 buggy USB device or the controller.  This workaround corresponds to
2320 the ``quirk_flags`` bit 14, too.                 2303 the ``quirk_flags`` bit 14, too.
2321                                                  2304 
2322 NB: ``quirk_alias`` option is provided only f    2305 NB: ``quirk_alias`` option is provided only for testing / development.
2323 If you want to have a proper support, contact    2306 If you want to have a proper support, contact to upstream for
2324 adding the matching quirk in the driver code     2307 adding the matching quirk in the driver code statically.
2325 Ditto for ``quirk_flags``.  If a device is kn    2308 Ditto for ``quirk_flags``.  If a device is known to require specific
2326 workarounds, please report to the upstream.      2309 workarounds, please report to the upstream.
2327                                                  2310 
2328 Module snd-usb-caiaq                             2311 Module snd-usb-caiaq
2329 --------------------                             2312 --------------------
2330                                                  2313 
2331 Module for caiaq UB audio interfaces,            2314 Module for caiaq UB audio interfaces,
2332                                                  2315 
2333 * Native Instruments RigKontrol2                 2316 * Native Instruments RigKontrol2
2334 * Native Instruments Kore Controller             2317 * Native Instruments Kore Controller
2335 * Native Instruments Audio Kontrol 1             2318 * Native Instruments Audio Kontrol 1
2336 * Native Instruments Audio 8 DJ                  2319 * Native Instruments Audio 8 DJ
2337                                                  2320         
2338 This module supports multiple devices, autopr    2321 This module supports multiple devices, autoprobe and hotplugging.
2339                                                  2322   
2340 Module snd-usb-usx2y                             2323 Module snd-usb-usx2y
2341 --------------------                             2324 --------------------
2342                                                  2325 
2343 Module for Tascam USB US-122, US-224 and US-4    2326 Module for Tascam USB US-122, US-224 and US-428 devices.
2344                                                  2327 
2345 This module supports multiple devices, autopr    2328 This module supports multiple devices, autoprobe and hotplugging.
2346                                                  2329 
2347 Note: you need to load the firmware via ``usx    2330 Note: you need to load the firmware via ``usx2yloader`` utility included
2348 in alsa-tools and alsa-firmware packages.        2331 in alsa-tools and alsa-firmware packages.
2349                                                  2332 
2350 Module snd-via82xx                               2333 Module snd-via82xx
2351 ------------------                               2334 ------------------
2352                                                  2335 
2353 Module for AC'97 motherboards based on VIA 82    2336 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233, 8233A,
2354 8233C, 8235, 8237 (south) bridge.                2337 8233C, 8235, 8237 (south) bridge.
2355                                                  2338 
2356 mpu_port                                         2339 mpu_port
2357     0x300,0x310,0x320,0x330, otherwise obtain    2340     0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
2358     [VIA686A/686B only]                          2341     [VIA686A/686B only]
2359 joystick                                         2342 joystick
2360     Enable joystick (default off) [VIA686A/68    2343     Enable joystick (default off) [VIA686A/686B only]
2361 ac97_clock                                       2344 ac97_clock
2362     AC'97 codec clock base (default 48000Hz)     2345     AC'97 codec clock base (default 48000Hz)
2363 dxs_support                                      2346 dxs_support
2364     support DXS channels, 0 = auto (default),    2347     support DXS channels, 0 = auto (default), 1 = enable, 2 = disable,
2365     3 = 48k only, 4 = no VRA, 5 = enable any     2348     3 = 48k only, 4 = no VRA, 5 = enable any sample rate and different
2366     sample rates on different channels [VIA82    2349     sample rates on different channels [VIA8233/C, 8235, 8237 only]
2367 ac97_quirk                                       2350 ac97_quirk
2368     AC'97 workaround for strange hardware;       2351     AC'97 workaround for strange hardware;
2369     See `AC97 Quirk Option`_ section below.      2352     See `AC97 Quirk Option`_ section below.
2370                                                  2353 
2371 This module supports one chip and autoprobe.     2354 This module supports one chip and autoprobe.
2372                                                  2355 
2373 Note: on some SMP motherboards like MSI 694D     2356 Note: on some SMP motherboards like MSI 694D the interrupts might
2374 not be generated properly.  In such a case, p    2357 not be generated properly.  In such a case, please try to
2375 set the SMP (or MPS) version on BIOS to 1.1 i    2358 set the SMP (or MPS) version on BIOS to 1.1 instead of
2376 default value 1.4.  Then the interrupt number    2359 default value 1.4.  Then the interrupt number will be
2377 assigned under 15. You might also upgrade you    2360 assigned under 15. You might also upgrade your BIOS.
2378                                                  2361 
2379 Note: VIA8233/5/7 (not VIA8233A) can support     2362 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
2380 channels as the first PCM.  On these channels    2363 channels as the first PCM.  On these channels, up to 4
2381 streams can be played at the same time, and t    2364 streams can be played at the same time, and the controller
2382 can perform sample rate conversion with separ    2365 can perform sample rate conversion with separate rates for
2383 each channel.                                    2366 each channel.
2384 As default (``dxs_support = 0``), 48k fixed r    2367 As default (``dxs_support = 0``), 48k fixed rate is chosen
2385 except for the known devices since the output    2368 except for the known devices since the output is often
2386 noisy except for 48k on some mother boards du    2369 noisy except for 48k on some mother boards due to the
2387 bug of BIOS.                                     2370 bug of BIOS.
2388 Please try once ``dxs_support=5`` and if it w    2371 Please try once ``dxs_support=5`` and if it works on other
2389 sample rates (e.g. 44.1kHz of mp3 playback),     2372 sample rates (e.g. 44.1kHz of mp3 playback), please let us
2390 know the PCI subsystem vendor/device id's (ou    2373 know the PCI subsystem vendor/device id's (output of
2391 ``lspci -nv``).                                  2374 ``lspci -nv``).
2392 If ``dxs_support=5`` does not work, try ``dxs    2375 If ``dxs_support=5`` does not work, try ``dxs_support=4``; if it
2393 doesn't work too, try dxs_support=1.  (dxs_su    2376 doesn't work too, try dxs_support=1.  (dxs_support=1 is
2394 usually for old motherboards.  The correct im    2377 usually for old motherboards.  The correct implemented
2395 board should work with 4 or 5.)  If it still     2378 board should work with 4 or 5.)  If it still doesn't
2396 work and the default setting is ok, ``dxs_sup    2379 work and the default setting is ok, ``dxs_support=3`` is the
2397 right choice.  If the default setting doesn't    2380 right choice.  If the default setting doesn't work at all,
2398 try ``dxs_support=2`` to disable the DXS chan    2381 try ``dxs_support=2`` to disable the DXS channels.
2399 In any cases, please let us know the result a    2382 In any cases, please let us know the result and the
2400 subsystem vendor/device ids.  See `Links and     2383 subsystem vendor/device ids.  See `Links and Addresses`_
2401 below.                                           2384 below.
2402                                                  2385 
2403 Note: for the MPU401 on VIA823x, use snd-mpu4    2386 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
2404 additionally.  The mpu_port option is for VIA    2387 additionally.  The mpu_port option is for VIA686 chips only.
2405                                                  2388 
2406 The power-management is supported.               2389 The power-management is supported.
2407                                                  2390 
2408 Module snd-via82xx-modem                         2391 Module snd-via82xx-modem
2409 ------------------------                         2392 ------------------------
2410                                                  2393 
2411 Module for VIA82xx AC97 modem                    2394 Module for VIA82xx AC97 modem
2412                                                  2395 
2413 ac97_clock                                       2396 ac97_clock
2414     AC'97 codec clock base (default 48000Hz)     2397     AC'97 codec clock base (default 48000Hz)
2415                                                  2398 
2416 This module supports one card and autoprobe.     2399 This module supports one card and autoprobe.
2417                                                  2400 
2418 Note: The default index value of this module     2401 Note: The default index value of this module is -2, i.e. the first
2419 slot is excluded.                                2402 slot is excluded.
2420                                                  2403 
2421 The power-management is supported.               2404 The power-management is supported.
2422                                                  2405 
2423 Module snd-virmidi                               2406 Module snd-virmidi
2424 ------------------                               2407 ------------------
2425                                                  2408 
2426 Module for virtual rawmidi devices.              2409 Module for virtual rawmidi devices.
2427 This module creates virtual rawmidi devices w    2410 This module creates virtual rawmidi devices which communicate
2428 to the corresponding ALSA sequencer ports.       2411 to the corresponding ALSA sequencer ports.
2429                                                  2412 
2430 midi_devs                                        2413 midi_devs
2431     MIDI devices # (1-4, default=4)              2414     MIDI devices # (1-4, default=4)
2432                                                  2415 
2433 This module supports multiple cards.             2416 This module supports multiple cards.
2434                                                  2417 
2435 Module snd-virtuoso                              2418 Module snd-virtuoso
2436 -------------------                              2419 -------------------
2437                                                  2420 
2438 Module for sound cards based on the Asus AV66    2421 Module for sound cards based on the Asus AV66/AV100/AV200 chips,
2439 i.e., Xonar D1, DX, D2, D2X, DS, DSX, Essence    2422 i.e., Xonar D1, DX, D2, D2X, DS, DSX, Essence ST (Deluxe),
2440 Essence STX (II), HDAV1.3 (Deluxe), and HDAV1    2423 Essence STX (II), HDAV1.3 (Deluxe), and HDAV1.3 Slim.
2441                                                  2424 
2442 This module supports autoprobe and multiple c    2425 This module supports autoprobe and multiple cards.
2443                                                  2426 
2444 Module snd-vx222                                 2427 Module snd-vx222
2445 ----------------                                 2428 ----------------
2446                                                  2429 
2447 Module for Digigram VX-Pocket VX222, V222 v2     2430 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
2448                                                  2431 
2449 mic                                              2432 mic
2450     Enable Microphone on V222 Mic (NYI)          2433     Enable Microphone on V222 Mic (NYI)
2451 ibl                                              2434 ibl
2452     Capture IBL size. (default = 0, minimum s    2435     Capture IBL size. (default = 0, minimum size)
2453                                                  2436 
2454 This module supports multiple cards.             2437 This module supports multiple cards.
2455                                                  2438 
2456 When the driver is compiled as a module and t    2439 When the driver is compiled as a module and the hotplug firmware
2457 is supported, the firmware data is loaded via    2440 is supported, the firmware data is loaded via hotplug automatically.
2458 Install the necessary firmware files in alsa-    2441 Install the necessary firmware files in alsa-firmware package.
2459 When no hotplug fw loader is available, you n    2442 When no hotplug fw loader is available, you need to load the
2460 firmware via vxloader utility in alsa-tools p    2443 firmware via vxloader utility in alsa-tools package.  To invoke
2461 vxloader automatically, add the following to     2444 vxloader automatically, add the following to /etc/modprobe.d/alsa.conf
2462                                                  2445 
2463 ::                                               2446 ::
2464                                                  2447 
2465   install snd-vx222 /sbin/modprobe --first-ti    2448   install snd-vx222 /sbin/modprobe --first-time -i snd-vx222\
2466     && /usr/bin/vxloader                         2449     && /usr/bin/vxloader
2467                                                  2450 
2468 (for 2.2/2.4 kernels, add ``post-install /usr    2451 (for 2.2/2.4 kernels, add ``post-install /usr/bin/vxloader`` to
2469 /etc/modules.conf, instead.)                     2452 /etc/modules.conf, instead.)
2470 IBL size defines the interrupts period for PC    2453 IBL size defines the interrupts period for PCM.  The smaller size
2471 gives smaller latency but leads to more CPU c    2454 gives smaller latency but leads to more CPU consumption, too.
2472 The size is usually aligned to 126.  As defau    2455 The size is usually aligned to 126.  As default (=0), the smallest
2473 size is chosen.  The possible IBL values can     2456 size is chosen.  The possible IBL values can be found in
2474 /proc/asound/cardX/vx-status proc file.          2457 /proc/asound/cardX/vx-status proc file.
2475                                                  2458 
2476 The power-management is supported.               2459 The power-management is supported.
2477                                                  2460 
2478 Module snd-vxpocket                              2461 Module snd-vxpocket
2479 -------------------                              2462 -------------------
2480                                                  2463 
2481 Module for Digigram VX-Pocket VX2 and 440 PCM    2464 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
2482                                                  2465 
2483 ibl                                              2466 ibl
2484     Capture IBL size. (default = 0, minimum s    2467     Capture IBL size. (default = 0, minimum size)
2485                                                  2468 
2486 This module supports multiple cards.  The mod    2469 This module supports multiple cards.  The module is compiled only when
2487 PCMCIA is supported on kernel.                   2470 PCMCIA is supported on kernel.
2488                                                  2471 
2489 With the older 2.6.x kernel, to activate the     2472 With the older 2.6.x kernel, to activate the driver via the card
2490 manager, you'll need to set up /etc/pcmcia/vx    2473 manager, you'll need to set up /etc/pcmcia/vxpocket.conf.  See the
2491 sound/pcmcia/vx/vxpocket.c.  2.6.13 or later     2474 sound/pcmcia/vx/vxpocket.c.  2.6.13 or later kernel requires no
2492 longer require a config file.                    2475 longer require a config file.
2493                                                  2476 
2494 When the driver is compiled as a module and t    2477 When the driver is compiled as a module and the hotplug firmware
2495 is supported, the firmware data is loaded via    2478 is supported, the firmware data is loaded via hotplug automatically.
2496 Install the necessary firmware files in alsa-    2479 Install the necessary firmware files in alsa-firmware package.
2497 When no hotplug fw loader is available, you n    2480 When no hotplug fw loader is available, you need to load the
2498 firmware via vxloader utility in alsa-tools p    2481 firmware via vxloader utility in alsa-tools package.
2499                                                  2482 
2500 About capture IBL, see the description of snd    2483 About capture IBL, see the description of snd-vx222 module.
2501                                                  2484 
2502 Note: snd-vxp440 driver is merged to snd-vxpo    2485 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
2503 ALSA 1.0.10.                                     2486 ALSA 1.0.10.
2504                                                  2487 
2505 The power-management is supported.               2488 The power-management is supported.
2506                                                  2489 
2507 Module snd-ymfpci                                2490 Module snd-ymfpci
2508 -----------------                                2491 -----------------
2509                                                  2492 
2510 Module for Yamaha PCI chips (YMF72x, YMF74x &    2493 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
2511                                                  2494 
2512 mpu_port                                         2495 mpu_port
2513     0x300,0x330,0x332,0x334, 0 (disable) by d    2496     0x300,0x330,0x332,0x334, 0 (disable) by default,
2514     1 (auto-detect for YMF744/754 only)          2497     1 (auto-detect for YMF744/754 only)
2515 fm_port                                          2498 fm_port
2516     0x388,0x398,0x3a0,0x3a8, 0 (disable) by d    2499     0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
2517     1 (auto-detect for YMF744/754 only)          2500     1 (auto-detect for YMF744/754 only)
2518 joystick_port                                    2501 joystick_port
2519     0x201,0x202,0x204,0x205, 0 (disable) by d    2502     0x201,0x202,0x204,0x205, 0 (disable) by default,
2520     1 (auto-detect)                              2503     1 (auto-detect)
2521 rear_switch                                      2504 rear_switch
2522     enable shared rear/line-in switch (bool)     2505     enable shared rear/line-in switch (bool)
2523                                                  2506 
2524 This module supports autoprobe and multiple c    2507 This module supports autoprobe and multiple chips.
2525                                                  2508 
2526 The power-management is supported.               2509 The power-management is supported.
2527                                                  2510 
2528 Module snd-pdaudiocf                             2511 Module snd-pdaudiocf
2529 --------------------                             2512 --------------------
2530                                                  2513 
2531 Module for Sound Core PDAudioCF sound card.      2514 Module for Sound Core PDAudioCF sound card.
2532                                                  2515 
2533 The power-management is supported.               2516 The power-management is supported.
2534                                                  2517 
2535                                                  2518 
2536 AC97 Quirk Option                                2519 AC97 Quirk Option
2537 =================                                2520 =================
2538                                                  2521 
2539 The ac97_quirk option is used to enable/overr    2522 The ac97_quirk option is used to enable/override the workaround for
2540 specific devices on drivers for on-board AC'9    2523 specific devices on drivers for on-board AC'97 controllers like
2541 snd-intel8x0.  Some hardware have swapped out    2524 snd-intel8x0.  Some hardware have swapped output pins between Master
2542 and Headphone, or Surround (thanks to confusi    2525 and Headphone, or Surround (thanks to confusion of AC'97
2543 specifications from version to version :-)       2526 specifications from version to version :-)
2544                                                  2527 
2545 The driver provides the auto-detection of kno    2528 The driver provides the auto-detection of known problematic devices,
2546 but some might be unknown or wrongly detected    2529 but some might be unknown or wrongly detected.  In such a case, pass
2547 the proper value with this option.               2530 the proper value with this option.
2548                                                  2531 
2549 The following strings are accepted:              2532 The following strings are accepted:
2550                                                  2533 
2551 default                                          2534 default
2552     Don't override the default setting           2535     Don't override the default setting
2553 none                                             2536 none
2554     Disable the quirk                            2537     Disable the quirk
2555 hp_only                                          2538 hp_only
2556     Bind Master and Headphone controls as a s    2539     Bind Master and Headphone controls as a single control
2557 swap_hp                                          2540 swap_hp
2558     Swap headphone and master controls           2541     Swap headphone and master controls
2559 swap_surround                                    2542 swap_surround
2560     Swap master and surround controls            2543     Swap master and surround controls
2561 ad_sharing                                       2544 ad_sharing
2562     For AD1985, turn on OMS bit and use headp    2545     For AD1985, turn on OMS bit and use headphone
2563 alc_jack                                         2546 alc_jack
2564     For ALC65x, turn on the jack sense mode      2547     For ALC65x, turn on the jack sense mode
2565 inv_eapd                                         2548 inv_eapd
2566     Inverted EAPD implementation                 2549     Inverted EAPD implementation
2567 mute_led                                         2550 mute_led
2568     Bind EAPD bit for turning on/off mute LED    2551     Bind EAPD bit for turning on/off mute LED
2569                                                  2552 
2570 For backward compatibility, the corresponding    2553 For backward compatibility, the corresponding integer value -1, 0, ...
2571 are  accepted, too.                              2554 are  accepted, too.
2572                                                  2555 
2573 For example, if ``Master`` volume control has    2556 For example, if ``Master`` volume control has no effect on your device
2574 but only ``Headphone`` does, pass ac97_quirk=    2557 but only ``Headphone`` does, pass ac97_quirk=hp_only module option.
2575                                                  2558 
2576                                                  2559 
2577 Configuring Non-ISAPNP Cards                     2560 Configuring Non-ISAPNP Cards
2578 ============================                     2561 ============================
2579                                                  2562 
2580 When the kernel is configured with ISA-PnP su    2563 When the kernel is configured with ISA-PnP support, the modules
2581 supporting the isapnp cards will have module     2564 supporting the isapnp cards will have module options ``isapnp``.
2582 If this option is set, *only* the ISA-PnP dev    2565 If this option is set, *only* the ISA-PnP devices will be probed.
2583 For probing the non ISA-PnP cards, you have t    2566 For probing the non ISA-PnP cards, you have to pass ``isapnp=0`` option
2584 together with the proper i/o and irq configur    2567 together with the proper i/o and irq configuration.
2585                                                  2568 
2586 When the kernel is configured without ISA-PnP    2569 When the kernel is configured without ISA-PnP support, isapnp option
2587 will be not built in.                            2570 will be not built in.
2588                                                  2571 
2589                                                  2572 
2590 Module Autoloading Support                       2573 Module Autoloading Support
2591 ==========================                       2574 ==========================
2592                                                  2575 
2593 The ALSA drivers can be loaded automatically     2576 The ALSA drivers can be loaded automatically on demand by defining
2594 module aliases.  The string ``snd-card-%1`` i    2577 module aliases.  The string ``snd-card-%1`` is requested for ALSA native
2595 devices where ``%i`` is sound card number fro    2578 devices where ``%i`` is sound card number from zero to seven.
2596                                                  2579 
2597 To auto-load an ALSA driver for OSS services,    2580 To auto-load an ALSA driver for OSS services, define the string
2598 ``sound-slot-%i`` where ``%i`` means the slot    2581 ``sound-slot-%i`` where ``%i`` means the slot number for OSS, which
2599 corresponds to the card index of ALSA.  Usual    2582 corresponds to the card index of ALSA.  Usually, define this
2600 as the same card module.                         2583 as the same card module.
2601                                                  2584 
2602 An example configuration for a single emu10k1    2585 An example configuration for a single emu10k1 card is like below:
2603 ::                                               2586 ::
2604                                                  2587 
2605     ----- /etc/modprobe.d/alsa.conf              2588     ----- /etc/modprobe.d/alsa.conf
2606     alias snd-card-0 snd-emu10k1                 2589     alias snd-card-0 snd-emu10k1
2607     alias sound-slot-0 snd-emu10k1               2590     alias sound-slot-0 snd-emu10k1
2608     ----- /etc/modprobe.d/alsa.conf              2591     ----- /etc/modprobe.d/alsa.conf
2609                                                  2592 
2610 The available number of auto-loaded sound car    2593 The available number of auto-loaded sound cards depends on the module
2611 option ``cards_limit`` of snd module.  As def    2594 option ``cards_limit`` of snd module.  As default it's set to 1.
2612 To enable the auto-loading of multiple cards,    2595 To enable the auto-loading of multiple cards, specify the number of
2613 sound cards in that option.                      2596 sound cards in that option.
2614                                                  2597 
2615 When multiple cards are available, it'd bette    2598 When multiple cards are available, it'd better to specify the index
2616 number for each card via module option, too,     2599 number for each card via module option, too, so that the order of
2617 cards is kept consistent.                        2600 cards is kept consistent.
2618                                                  2601 
2619 An example configuration for two sound cards     2602 An example configuration for two sound cards is like below:
2620 ::                                               2603 ::
2621                                                  2604 
2622     ----- /etc/modprobe.d/alsa.conf              2605     ----- /etc/modprobe.d/alsa.conf
2623     # ALSA portion                               2606     # ALSA portion
2624     options snd cards_limit=2                    2607     options snd cards_limit=2
2625     alias snd-card-0 snd-interwave               2608     alias snd-card-0 snd-interwave
2626     alias snd-card-1 snd-ens1371                 2609     alias snd-card-1 snd-ens1371
2627     options snd-interwave index=0                2610     options snd-interwave index=0
2628     options snd-ens1371 index=1                  2611     options snd-ens1371 index=1
2629     # OSS/Free portion                           2612     # OSS/Free portion
2630     alias sound-slot-0 snd-interwave             2613     alias sound-slot-0 snd-interwave
2631     alias sound-slot-1 snd-ens1371               2614     alias sound-slot-1 snd-ens1371
2632     ----- /etc/modprobe.d/alsa.conf              2615     ----- /etc/modprobe.d/alsa.conf
2633                                                  2616 
2634 In this example, the interwave card is always    2617 In this example, the interwave card is always loaded as the first card
2635 (index 0) and ens1371 as the second (index 1)    2618 (index 0) and ens1371 as the second (index 1).
2636                                                  2619 
2637 Alternative (and new) way to fixate the slot     2620 Alternative (and new) way to fixate the slot assignment is to use
2638 ``slots`` option of snd module.  In the case     2621 ``slots`` option of snd module.  In the case above, specify like the
2639 following:                                       2622 following: 
2640 ::                                               2623 ::
2641                                                  2624 
2642     options snd slots=snd-interwave,snd-ens13    2625     options snd slots=snd-interwave,snd-ens1371
2643                                                  2626 
2644 Then, the first slot (#0) is reserved for snd    2627 Then, the first slot (#0) is reserved for snd-interwave driver, and
2645 the second (#1) for snd-ens1371.  You can omi    2628 the second (#1) for snd-ens1371.  You can omit index option in each
2646 driver if slots option is used (although you     2629 driver if slots option is used (although you can still have them at
2647 the same time as long as they don't conflict)    2630 the same time as long as they don't conflict).
2648                                                  2631 
2649 The slots option is especially useful for avo    2632 The slots option is especially useful for avoiding the possible
2650 hot-plugging and the resultant slot conflict.    2633 hot-plugging and the resultant slot conflict.  For example, in the
2651 case above again, the first two slots are alr    2634 case above again, the first two slots are already reserved.  If any
2652 other driver (e.g. snd-usb-audio) is loaded b    2635 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2653 snd-ens1371, it will be assigned to the third    2636 snd-ens1371, it will be assigned to the third or later slot.
2654                                                  2637 
2655 When a module name is given with '!', the slo    2638 When a module name is given with '!', the slot will be given for any
2656 modules but that name.  For example, ``slots=    2639 modules but that name.  For example, ``slots=!snd-pcsp`` will reserve
2657 the first slot for any modules but snd-pcsp.     2640 the first slot for any modules but snd-pcsp. 
2658                                                  2641 
2659                                                  2642 
2660 ALSA PCM devices to OSS devices mapping          2643 ALSA PCM devices to OSS devices mapping
2661 =======================================          2644 =======================================
2662 ::                                               2645 ::
2663                                                  2646 
2664     /dev/snd/pcmC0D0[c|p]  -> /dev/audio0 (/d    2647     /dev/snd/pcmC0D0[c|p]  -> /dev/audio0 (/dev/audio) -> minor 4
2665     /dev/snd/pcmC0D0[c|p]  -> /dev/dsp0 (/dev    2648     /dev/snd/pcmC0D0[c|p]  -> /dev/dsp0 (/dev/dsp)     -> minor 3
2666     /dev/snd/pcmC0D1[c|p]  -> /dev/adsp0 (/de    2649     /dev/snd/pcmC0D1[c|p]  -> /dev/adsp0 (/dev/adsp)   -> minor 12
2667     /dev/snd/pcmC1D0[c|p]  -> /dev/audio1        2650     /dev/snd/pcmC1D0[c|p]  -> /dev/audio1              -> minor 4+16 = 20
2668     /dev/snd/pcmC1D0[c|p]  -> /dev/dsp1          2651     /dev/snd/pcmC1D0[c|p]  -> /dev/dsp1                -> minor 3+16 = 19
2669     /dev/snd/pcmC1D1[c|p]  -> /dev/adsp1         2652     /dev/snd/pcmC1D1[c|p]  -> /dev/adsp1               -> minor 12+16 = 28
2670     /dev/snd/pcmC2D0[c|p]  -> /dev/audio2        2653     /dev/snd/pcmC2D0[c|p]  -> /dev/audio2              -> minor 4+32 = 36
2671     /dev/snd/pcmC2D0[c|p]  -> /dev/dsp2          2654     /dev/snd/pcmC2D0[c|p]  -> /dev/dsp2                -> minor 3+32 = 39
2672     /dev/snd/pcmC2D1[c|p]  -> /dev/adsp2         2655     /dev/snd/pcmC2D1[c|p]  -> /dev/adsp2               -> minor 12+32 = 44
2673                                                  2656 
2674 The first number from ``/dev/snd/pcmC{X}D{Y}[    2657 The first number from ``/dev/snd/pcmC{X}D{Y}[c|p]`` expression means
2675 sound card number and second means device num    2658 sound card number and second means device number.  The ALSA devices
2676 have either ``c`` or ``p`` suffix indicating     2659 have either ``c`` or ``p`` suffix indicating the direction, capture and
2677 playback, respectively.                          2660 playback, respectively.
2678                                                  2661 
2679 Please note that the device mapping above may    2662 Please note that the device mapping above may be varied via the module
2680 options of snd-pcm-oss module.                   2663 options of snd-pcm-oss module.
2681                                                  2664 
2682                                                  2665 
2683 Proc interfaces (/proc/asound)                   2666 Proc interfaces (/proc/asound)
2684 ==============================                   2667 ==============================
2685                                                  2668 
2686 /proc/asound/card#/pcm#[cp]/oss                  2669 /proc/asound/card#/pcm#[cp]/oss
2687 -------------------------------                  2670 -------------------------------
2688 erase                                            2671 erase
2689     erase all additional information about OS    2672     erase all additional information about OSS applications
2690                                                  2673 
2691 <app_name> <fragments> <fragment_size> [<opti    2674 <app_name> <fragments> <fragment_size> [<options>]
2692     <app_name>                                   2675     <app_name>
2693         name of application with (higher prio    2676         name of application with (higher priority) or without path
2694     <fragments>                                  2677     <fragments>
2695          number of fragments or zero if auto     2678          number of fragments or zero if auto
2696     <fragment_size>                              2679     <fragment_size>
2697          size of fragment in bytes or zero if    2680          size of fragment in bytes or zero if auto
2698     <options>                                    2681     <options>
2699         optional parameters                      2682         optional parameters
2700                                                  2683 
2701         disable                                  2684         disable
2702             the application tries to open a p    2685             the application tries to open a pcm device for
2703             this channel but does not want to    2686             this channel but does not want to use it.
2704             (Cause a bug or mmap needs)          2687             (Cause a bug or mmap needs)
2705             It's good for Quake etc...           2688             It's good for Quake etc...
2706         direct                                   2689         direct
2707             don't use plugins                    2690             don't use plugins
2708         block                                    2691         block
2709              force block mode (rvplayer)         2692              force block mode (rvplayer)
2710         non-block                                2693         non-block
2711             force non-block mode                 2694             force non-block mode
2712         whole-frag                               2695         whole-frag
2713             write only whole fragments (optim    2696             write only whole fragments (optimization affecting
2714             playback only)                       2697             playback only)
2715         no-silence                               2698         no-silence
2716             do not fill silence ahead to avoi    2699             do not fill silence ahead to avoid clicks
2717         buggy-ptr                                2700         buggy-ptr
2718             Returns the whitespace blocks in     2701             Returns the whitespace blocks in GETOPTR ioctl
2719             instead of filled blocks             2702             instead of filled blocks
2720                                                  2703 
2721 Example:                                         2704 Example:
2722 ::                                               2705 ::
2723                                                  2706 
2724     echo "x11amp 128 16384" > /proc/asound/ca    2707     echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2725     echo "squake 0 0 disable" > /proc/asound/    2708     echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2726     echo "rvplayer 0 0 block" > /proc/asound/    2709     echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2727                                                  2710 
2728                                                  2711 
2729 Early Buffer Allocation                          2712 Early Buffer Allocation
2730 =======================                          2713 =======================
2731                                                  2714 
2732 Some drivers (e.g. hdsp) require the large co    2715 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2733 sometimes it's too late to find such spaces w    2716 sometimes it's too late to find such spaces when the driver module is
2734 actually loaded due to memory fragmentation.     2717 actually loaded due to memory fragmentation.  You can pre-allocate the
2735 PCM buffers by loading snd-page-alloc module     2718 PCM buffers by loading snd-page-alloc module and write commands to its
2736 proc file in prior, for example, in the early    2719 proc file in prior, for example, in the early boot stage like
2737 ``/etc/init.d/*.local`` scripts.                 2720 ``/etc/init.d/*.local`` scripts.
2738                                                  2721 
2739 Reading the proc file /proc/drivers/snd-page-    2722 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2740 usage of page allocation.  In writing, you ca    2723 usage of page allocation.  In writing, you can send the following
2741 commands to the snd-page-alloc driver:           2724 commands to the snd-page-alloc driver:
2742                                                  2725 
2743 * add VENDOR DEVICE MASK SIZE BUFFERS            2726 * add VENDOR DEVICE MASK SIZE BUFFERS
2744                                                  2727 
2745 VENDOR and DEVICE are PCI vendor and device I    2728 VENDOR and DEVICE are PCI vendor and device IDs.  They take
2746 integer numbers (0x prefix is needed for the     2729 integer numbers (0x prefix is needed for the hex).
2747 MASK is the PCI DMA mask.  Pass 0 if not rest    2730 MASK is the PCI DMA mask.  Pass 0 if not restricted.
2748 SIZE is the size of each buffer to allocate.     2731 SIZE is the size of each buffer to allocate.  You can pass
2749 k and m suffix for KB and MB.  The max number    2732 k and m suffix for KB and MB.  The max number is 16MB.
2750 BUFFERS is the number of buffers to allocate.    2733 BUFFERS is the number of buffers to allocate.  It must be greater
2751 than 0.  The max number is 4.                    2734 than 0.  The max number is 4.
2752                                                  2735 
2753 * erase                                          2736 * erase
2754                                                  2737 
2755 This will erase the all pre-allocated buffers    2738 This will erase the all pre-allocated buffers which are not in
2756 use.                                             2739 use.
2757                                                  2740 
2758                                                  2741 
2759 Links and Addresses                              2742 Links and Addresses
2760 ===================                              2743 ===================
2761                                                  2744 
2762 ALSA project homepage                            2745 ALSA project homepage
2763     http://www.alsa-project.org                  2746     http://www.alsa-project.org
2764 Kernel Bugzilla                                  2747 Kernel Bugzilla
2765     http://bugzilla.kernel.org/                  2748     http://bugzilla.kernel.org/
2766 ALSA Developers ML                               2749 ALSA Developers ML
2767     mailto:alsa-devel@alsa-project.org           2750     mailto:alsa-devel@alsa-project.org
2768 alsa-info.sh script                              2751 alsa-info.sh script
2769     https://www.alsa-project.org/alsa-info.sh    2752     https://www.alsa-project.org/alsa-info.sh
                                                      

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

sflogo.php