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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-5.5.19)


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

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