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Linux/Documentation/sound/alsa-configuration.rst

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Diff markup

Differences between /Documentation/sound/alsa-configuration.rst (Version linux-6.12-rc7) and /Documentation/sound/alsa-configuration.rst (Version linux-5.9.16)


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

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