blob: 4499bd948860cebe52e7db8aae65b2a16fd1a897 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001
2 Advanced Linux Sound Architecture - Driver
3 ==========================================
4 Configuration guide
5
6
7Kernel Configuration
8====================
9
10To enable ALSA support you need at least to build the kernel with
11primary sound card support (CONFIG_SOUND). Since ALSA can emulate OSS,
12you don't have to choose any of the OSS modules.
13
14Enable "OSS API emulation" (CONFIG_SND_OSSEMUL) and both OSS mixer and
15PCM supports if you want to run OSS applications with ALSA.
16
17If you want to support the WaveTable functionality on cards such as
18SB Live! then you need to enable "Sequencer support"
19(CONFIG_SND_SEQUENCER).
20
21To make ALSA debug messages more verbose, enable the "Verbose printk"
22and "Debug" options. To check for memory leaks, turn on "Debug memory"
23too. "Debug detection" will add checks for the detection of cards.
24
25Please note that all the ALSA ISA drivers support the Linux isapnp API
26(if the card supports ISA PnP). You don't need to configure the cards
27using isapnptools.
28
29
30Creating ALSA devices
31=====================
32
33This depends on your distribution, but normally you use the /dev/MAKEDEV
34script to create the necessary device nodes. On some systems you use a
35script named 'snddevices'.
36
37
38Module parameters
39=================
40
41The user can load modules with options. If the module supports more than
42one card and you have more than one card of the same type then you can
43specify multiple values for the option separated by commas.
44
45Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
46
47 Module snd
48 ----------
49
50 The core ALSA module. It is used by all ALSA card drivers.
51 It takes the following options which have global effects.
52
53 major - major number for sound driver
54 - Default: 116
55 cards_limit
56 - limiting card index for auto-loading (1-8)
57 - Default: 1
58 - For auto-loading more than one card, specify this
59 option together with snd-card-X aliases.
Takashi Iwai304cd072007-10-26 15:10:15 +020060 slots - Reserve the slot index for the given driver.
61 This option takes multiple strings.
62 See "Module Autoloading Support" section for details.
Takashi Iwai36ce99c2009-08-27 16:45:07 +020063 debug - Specifies the debug message level
64 (0 = disable debug prints, 1 = normal debug messages,
65 2 = verbose debug messages)
66 This option appears only when CONFIG_SND_DEBUG=y.
67 This option can be dynamically changed via sysfs
68 /sys/modules/snd/parameters/debug file.
Linus Torvalds1da177e2005-04-16 15:20:36 -070069
70 Module snd-pcm-oss
71 ------------------
72
73 The PCM OSS emulation module.
74 This module takes options which change the mapping of devices.
75
76 dsp_map - PCM device number maps assigned to the 1st OSS device.
77 - Default: 0
78 adsp_map - PCM device number maps assigned to the 2st OSS device.
79 - Default: 1
80 nonblock_open
Takashi Iwai62430082005-09-05 17:12:29 +020081 - Don't block opening busy PCM devices. Default: 1
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
83 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
84 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
85 to PCM #0 of the card #0.
86 For changing the second or later card, specify the option with
87 commas, such like "dsp_map=0,1".
88
89 nonblock_open option is used to change the behavior of the PCM
90 regarding opening the device. When this option is non-zero,
91 opening a busy OSS PCM device won't be blocked but return
92 immediately with EAGAIN (just like O_NONBLOCK flag).
93
94 Module snd-rawmidi
95 ------------------
96
97 This module takes options which change the mapping of devices.
98 similar to those of the snd-pcm-oss module.
99
100 midi_map - MIDI device number maps assigned to the 1st OSS device.
101 - Default: 0
102 amidi_map - MIDI device number maps assigned to the 2st OSS device.
103 - Default: 1
104
105 Common parameters for top sound card modules
106 --------------------------------------------
107
108 Each of top level sound card module takes the following options.
109
110 index - index (slot #) of sound card
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100111 - Values: 0 through 31 or negative
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 - If nonnegative, assign that index number
113 - if negative, interpret as a bitmask of permissible
114 indices; the first free permitted index is assigned
115 - Default: -1
116 id - card ID (identifier or name)
117 - Can be up to 15 characters long
118 - Default: the card type
119 - A directory by this name is created under /proc/asound/
120 containing information about the card
121 - This ID can be used instead of the index number in
122 identifying the card
123 enable - enable card
124 - Default: enabled, for PCI and ISA PnP cards
125
Rene Hermancf40a312006-03-28 12:38:20 +0200126 Module snd-adlib
127 ----------------
128
129 Module for AdLib FM cards.
130
131 port - port # for OPL chip
132
133 This module supports multiple cards. It does not support autoprobe, so
134 the port must be specified. For actual AdLib FM cards it will be 0x388.
135 Note that this card does not have PCM support and no mixer; only FM
136 synthesis.
137
138 Make sure you have "sbiload" from the alsa-tools package available and,
139 after loading the module, find out the assigned ALSA sequencer port
140 number through "sbiload -l". Example output:
141
142 Port Client name Port name
143 64:0 OPL2 FM synth OPL2 FM Port
144
145 Load the std.sb and drums.sb patches also supplied by sbiload:
146
147 sbiload -p 64:0 std.sb drums.sb
148
149 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
150 instead. To have the card produce sound, use aplaymidi from alsa-utils:
151
152 aplaymidi -p 64:0 foo.mid
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154 Module snd-ad1816a
155 ------------------
156
157 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
158
Takashi Iwai506d4c62005-08-03 14:02:47 +0200159 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100161 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162
163 Module snd-ad1848
164 -----------------
165
166 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
167
168 port - port # for AD1848 chip
169 irq - IRQ # for AD1848 chip
170 dma1 - DMA # for AD1848 chip (0,1,3)
171
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100172 This module supports multiple cards. It does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 thus main port must be specified!!! Other ports are optional.
174
Takashi Iwaia4efc232005-11-17 17:24:26 +0100175 The power-management is supported.
176
Clemens Ladisch84010e62005-09-02 07:57:59 +0200177 Module snd-ad1889
178 -----------------
179
180 Module for Analog Devices AD1889 chips.
181
182 ac97_quirk - AC'97 workaround for strange hardware
183 See the description of intel8x0 module for details.
184
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100185 This module supports multiple cards.
Clemens Ladisch84010e62005-09-02 07:57:59 +0200186
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 Module snd-ali5451
188 ------------------
189
190 Module for ALi M5451 PCI chip.
191
192 pcm_channels - Number of hardware channels assigned for PCM
193 spdif - Support SPDIF I/O
194 - Default: disabled
195
Takashi Iwai8a3fb4d2005-10-20 17:10:49 +0200196 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
198 The power-management is supported.
199
200 Module snd-als100
201 -----------------
202
203 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
204
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100205 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
Takashi Iwaia4efc232005-11-17 17:24:26 +0100207 The power-management is supported.
208
Ash Willisb3a70d52006-03-27 13:20:40 +0200209 Module snd-als300
210 -----------------
211
212 Module for Avance Logic ALS300 and ALS300+
213
214 This module supports multiple cards.
215
216 The power-management is supported.
217
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 Module snd-als4000
219 ------------------
220
221 Module for sound cards based on Avance Logic ALS4000 PCI chip.
222
223 joystick_port - port # for legacy joystick support.
224 0 = disabled (default), 1 = auto-detect
225
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100226 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227
Takashi Iwaia4efc232005-11-17 17:24:26 +0100228 The power-management is supported.
229
Eliot Blennerhassett719f82d2010-04-21 18:17:39 +0200230 Module snd-asihpi
231 -----------------
232
233 Module for AudioScience ASI soundcards
234
235 enable_hpi_hwdep - enable HPI hwdep for AudioScience soundcard
236
237 This module supports multiple cards.
238 The driver requires the firmware loader support on kernel.
239
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 Module snd-atiixp
241 -----------------
242
Takashi Iwai62430082005-09-05 17:12:29 +0200243 Module for ATI IXP 150/200/250/400 AC97 controllers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
Takashi Iwai62430082005-09-05 17:12:29 +0200245 ac97_clock - AC'97 clock (default = 48000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +0200247 See "AC97 Quirk Option" section below.
Dan Carpenter14e1d352006-11-20 16:35:18 +0100248 ac97_codec - Workaround to specify which AC'97 codec
249 instead of probing. If this works for you
250 file a bug with your `lspci -vn` output.
251 -2 -- Force probing.
252 -1 -- Default behavior.
253 0-2 -- Use the specified codec.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
255
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200256 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257
Takashi Iwai62430082005-09-05 17:12:29 +0200258 ATI IXP has two different methods to control SPDIF output. One is
259 over AC-link and another is over the "direct" SPDIF output. The
260 implementation depends on the motherboard, and you'll need to
261 choose the correct one via spdif_aclink module option.
262
Takashi Iwaia4efc232005-11-17 17:24:26 +0100263 The power-management is supported.
264
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 Module snd-atiixp-modem
266 -----------------------
267
268 Module for ATI IXP 150/200/250 AC97 modem controllers.
269
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200270 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271
272 Note: The default index value of this module is -2, i.e. the first
273 slot is excluded.
274
Takashi Iwaia4efc232005-11-17 17:24:26 +0100275 The power-management is supported.
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277 Module snd-au8810, snd-au8820, snd-au8830
278 -----------------------------------------
279
280 Module for Aureal Vortex, Vortex2 and Advantage device.
281
282 pcifix - Control PCI workarounds
283 0 = Disable all workarounds
284 1 = Force the PCI latency of the Aureal card to 0xff
285 2 = Force the Extend PCI#2 Internal Master for Efficient
286 Handling of Dummy Requests on the VIA KT133 AGP Bridge
287 3 = Force both settings
288 255 = Autodetect what is required (default)
289
290 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
291 EQ, mpu401, gameport. A3D and wavetable support are still in development.
292 Development and reverse engineering work is being coordinated at
293 http://savannah.nongnu.org/projects/openvortex/
294 SPDIF output has a copy of the AC97 codec output, unless you use the
295 "spdif" pcm device, which allows raw data passthru.
296 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
297 Advantage.
298
Takashi Iwai62430082005-09-05 17:12:29 +0200299 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 control correctly. If you have problems regarding this, try
301 another ALSA compliant mixer (alsamixer works).
302
René Herman49531192010-08-11 13:08:06 +0200303 Module snd-azt1605
304 ------------------
305
306 Module for Aztech Sound Galaxy soundcards based on the Aztech AZT1605
307 chipset.
308
309 port - port # for BASE (0x220,0x240,0x260,0x280)
310 wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
311 irq - IRQ # for WSS (7,9,10,11)
312 dma1 - DMA # for WSS playback (0,1,3)
313 dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
314 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
315 mpu_irq - IRQ # for MPU-401 UART (3,5,7,9), -1 = disabled (default)
316 fm_port - port # for OPL3 (0x388), -1 = disabled (default)
317
318 This module supports multiple cards. It does not support autoprobe: port,
319 wss_port, irq and dma1 have to be specified. The other values are
320 optional.
321
322 "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
323 or the value stored in the card's EEPROM for cards that have an EEPROM and
324 their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300325 be chosen freely from the options enumerated above.
René Herman49531192010-08-11 13:08:06 +0200326
327 If dma2 is specified and different from dma1, the card will operate in
328 full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
329 enable capture since only channels 0 and 1 are available for capture.
330
331 Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
332 mpu_port=0x330 mpu_irq=9 fm_port=0x388".
333
334 Whatever IRQ and DMA channels you pick, be sure to reserve them for
335 legacy ISA in your BIOS.
336
337 Module snd-azt2316
338 ------------------
339
340 Module for Aztech Sound Galaxy soundcards based on the Aztech AZT2316
341 chipset.
342
343 port - port # for BASE (0x220,0x240,0x260,0x280)
344 wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
345 irq - IRQ # for WSS (7,9,10,11)
346 dma1 - DMA # for WSS playback (0,1,3)
347 dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
348 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
349 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10), -1 = disabled (default)
350 fm_port - port # for OPL3 (0x388), -1 = disabled (default)
351
352 This module supports multiple cards. It does not support autoprobe: port,
353 wss_port, irq and dma1 have to be specified. The other values are
354 optional.
355
356 "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
357 or the value stored in the card's EEPROM for cards that have an EEPROM and
358 their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300359 be chosen freely from the options enumerated above.
René Herman49531192010-08-11 13:08:06 +0200360
361 If dma2 is specified and different from dma1, the card will operate in
362 full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
363 enable capture since only channels 0 and 1 are available for capture.
364
365 Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
366 mpu_port=0x330 mpu_irq=9 fm_port=0x388".
367
368 Whatever IRQ and DMA channels you pick, be sure to reserve them for
369 legacy ISA in your BIOS.
370
Takashi Iwai9e235322008-02-20 12:13:29 +0100371 Module snd-aw2
372 --------------
373
374 Module for Audiowerk2 sound card
375
376 This module supports multiple cards.
377
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 Module snd-azt2320
379 ------------------
380
381 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
382
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100383 This module supports multiple cards, PnP and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384
Takashi Iwaia4efc232005-11-17 17:24:26 +0100385 The power-management is supported.
386
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 Module snd-azt3328
388 ------------------
389
390 Module for sound cards based on Aztech AZF3328 PCI chip.
391
392 joystick - Enable joystick (default off)
393
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100394 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395
396 Module snd-bt87x
397 ----------------
398
399 Module for video cards based on Bt87x chips.
400
401 digital_rate - Override the default digital rate (Hz)
402 load_all - Load the driver even if the card model isn't known
403
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100404 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405
406 Note: The default index value of this module is -2, i.e. the first
407 slot is excluded.
408
409 Module snd-ca0106
410 -----------------
411
412 Module for Creative Audigy LS and SB Live 24bit
413
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100414 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415
416
417 Module snd-cmi8330
418 ------------------
419
420 Module for sound cards based on C-Media CMI8330 ISA chips.
421
Rene Herman64e0e2d2007-12-13 16:29:33 +0100422 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
423
424 with isapnp=0, the following options are available:
425
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 wssport - port # for CMI8330 chip (WSS)
427 wssirq - IRQ # for CMI8330 chip (WSS)
428 wssdma - first DMA # for CMI8330 chip (WSS)
429 sbport - port # for CMI8330 chip (SB16)
430 sbirq - IRQ # for CMI8330 chip (SB16)
431 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
432 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
Takashi Iwai9e128fd2009-01-29 11:49:10 +0100433 fmport - (optional) OPL3 I/O port
434 mpuport - (optional) MPU401 I/O port
435 mpuirq - (optional) MPU401 irq #
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100437 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
Takashi Iwaia4efc232005-11-17 17:24:26 +0100439 The power-management is supported.
440
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 Module snd-cmipci
442 -----------------
443
Clemens Ladisch45c41b42007-08-22 09:45:03 +0200444 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445
Clemens Ladischc78c9502007-09-03 09:55:49 +0200446 mpu_port - port address of MIDI interface (8338 only):
Clemens Ladisch45c41b42007-08-22 09:45:03 +0200447 0x300,0x310,0x320,0x330 = legacy port,
Takashi Iwaicab5c4c2006-05-04 14:36:08 +0200448 0 = disable (default)
Clemens Ladisch45c41b42007-08-22 09:45:03 +0200449 fm_port - port address of OPL-3 FM synthesizer (8x38 only):
450 0x388 = legacy port,
451 1 = integrated PCI port (default on 8738),
Takashi Iwai2f24d1592007-02-15 18:56:43 +0100452 0 = disable
Takashi Iwai62430082005-09-05 17:12:29 +0200453 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 (default = 1)
455 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
456
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100457 This module supports autoprobe and multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Takashi Iwaia4efc232005-11-17 17:24:26 +0100459 The power-management is supported.
460
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 Module snd-cs4231
462 -----------------
463
464 Module for sound cards based on CS4231 ISA chips.
465
466 port - port # for CS4231 chip
467 mpu_port - port # for MPU-401 UART (optional), -1 = disable
468 irq - IRQ # for CS4231 chip
469 mpu_irq - IRQ # for MPU-401 UART
470 dma1 - first DMA # for CS4231 chip
471 dma2 - second DMA # for CS4231 chip
472
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100473 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 thus main port must be specified!!! Other ports are optional.
475
476 The power-management is supported.
477
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 Module snd-cs4236
479 -----------------
480
Takashi Iwaic844a5d2009-02-16 23:17:33 +0100481 Module for sound cards based on CS4232/CS4232A,
482 CS4235/CS4236/CS4236B/CS4237B/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 CS4238B/CS4239 ISA chips.
484
Rene Herman64e0e2d2007-12-13 16:29:33 +0100485 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
486
487 with isapnp=0, the following options are available:
488
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 port - port # for CS4236 chip (PnP setup - 0x534)
490 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
491 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
492 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
493 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
494 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
495 dma1 - first DMA # for CS4236 chip (0,1,3)
496 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100498 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499 (if ISA PnP is not used) thus main port and control port must be
500 specified!!! Other ports are optional.
501
502 The power-management is supported.
503
Takashi Iwaic844a5d2009-02-16 23:17:33 +0100504 This module is aliased as snd-cs4232 since it provides the old
505 snd-cs4232 functionality, too.
506
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507 Module snd-cs4281
508 -----------------
509
510 Module for Cirrus Logic CS4281 soundchip.
511
512 dual_codec - Secondary codec ID (0 = disable, default)
513
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100514 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515
516 The power-management is supported.
517
518 Module snd-cs46xx
519 -----------------
520
521 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
522 CS4624/CS4630/CS4280 PCI chips.
523
Takashi Iwai62430082005-09-05 17:12:29 +0200524 external_amp - Force to enable external amplifier.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 thinkpad - Force to enable Thinkpad's CLKRUN control.
526 mmap_valid - Support OSS mmap mode (default = 0).
527
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100528 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 Usually external amp and CLKRUN controls are detected automatically
530 from PCI sub vendor/device ids. If they don't work, give the options
531 above explicitly.
532
533 The power-management is supported.
Takashi Iwai621887a2007-05-24 18:46:54 +0200534
535 Module snd-cs5530
536 _________________
537
538 Module for Cyrix/NatSemi Geode 5530 chip.
539
Takashi Iwai3e873172005-11-17 10:15:37 +0100540 Module snd-cs5535audio
541 ----------------------
542
543 Module for multifunction CS5535 companion PCI device
544
Takashi Iwaic00bd742006-05-19 19:22:34 +0200545 The power-management is supported.
Takashi Iwai3e873172005-11-17 10:15:37 +0100546
Wai Yew CHAY8cc72362009-05-14 08:05:58 +0200547 Module snd-ctxfi
548 ----------------
549
550 Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
551 * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
552 * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
553 * Creative Sound Blaster X-Fi Titanium Professional Audio
554 * Creative Sound Blaster X-Fi Titanium
555 * Creative Sound Blaster X-Fi Elite Pro
556 * Creative Sound Blaster X-Fi Platinum
557 * Creative Sound Blaster X-Fi Fatal1ty
558 * Creative Sound Blaster X-Fi XtremeGamer
559 * Creative Sound Blaster X-Fi XtremeMusic
560
561 reference_rate - reference sample rate, 44100 or 48000 (default)
562 multiple - multiple to ref. sample rate, 1 or 2 (default)
Takashi Iwai408bffd2010-01-14 09:19:46 +0100563 subsystem - override the PCI SSID for probing; the value
564 consists of SSVID << 16 | SSDID. The default is
565 zero, which means no override.
Wai Yew CHAY8cc72362009-05-14 08:05:58 +0200566
567 This module supports multiple cards.
568
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200569 Module snd-darla20
570 ------------------
571
572 Module for Echoaudio Darla20
573
574 This module supports multiple cards.
575 The driver requires the firmware loader support on kernel.
576
577 Module snd-darla24
578 ------------------
579
580 Module for Echoaudio Darla24
581
582 This module supports multiple cards.
583 The driver requires the firmware loader support on kernel.
584
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585 Module snd-dt019x
586 -----------------
587
588 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
589 only)
590
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100591 This module supports multiple cards. This module is enabled only with
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592 ISA PnP support.
593
Takashi Iwaia4efc232005-11-17 17:24:26 +0100594 The power-management is supported.
595
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 Module snd-dummy
597 ----------------
598
599 Module for the dummy sound card. This "card" doesn't do any output
600 or input, but you may use this module for any application which
601 requires a sound card (like RealPlayer).
602
Takashi Iwai30681bcf2009-09-03 16:08:08 +0200603 pcm_devs - Number of PCM devices assigned to each card
604 (default = 1, up to 4)
605 pcm_substreams - Number of PCM substreams assigned to each PCM
Takashi Iwai23aebca2009-11-02 14:10:59 +0100606 (default = 8, up to 128)
Takashi Iwai30681bcf2009-09-03 16:08:08 +0200607 hrtimer - Use hrtimer (=1, default) or system timer (=0)
Takashi Iwaia68c4d12009-09-04 12:19:36 +0200608 fake_buffer - Fake buffer allocations (default = 1)
Takashi Iwai30681bcf2009-09-03 16:08:08 +0200609
610 When multiple PCM devices are created, snd-dummy gives different
611 behavior to each PCM device:
612 0 = interleaved with mmap support
613 1 = non-interleaved with mmap support
614 2 = interleaved without mmap
615 3 = non-interleaved without mmap
616
Takashi Iwaia68c4d12009-09-04 12:19:36 +0200617 As default, snd-dummy drivers doesn't allocate the real buffers
618 but either ignores read/write or mmap a single dummy page to all
619 buffer pages, in order to save the resouces. If your apps need
620 the read/ written buffer data to be consistent, pass fake_buffer=0
621 option.
622
Takashi Iwaia4efc232005-11-17 17:24:26 +0100623 The power-management is supported.
624
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200625 Module snd-echo3g
626 -----------------
627
628 Module for Echoaudio 3G cards (Gina3G/Layla3G)
629
630 This module supports multiple cards.
631 The driver requires the firmware loader support on kernel.
632
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633 Module snd-emu10k1
634 ------------------
635
636 Module for EMU10K1/EMU10k2 based PCI sound cards.
637 * Sound Blaster Live!
638 * Sound Blaster PCI 512
639 * Emu APS (partially supported)
640 * Sound Blaster Audigy
641
642 extin - bitmap of available external inputs for FX8010 (see bellow)
643 extout - bitmap of available external outputs for FX8010 (see bellow)
644 seq_ports - allocated sequencer ports (4 by default)
645 max_synth_voices - limit of voices used for wavetable (64 by default)
646 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
647 given in MB unit. Default value is 128.
648 enable_ir - enable IR
649
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100650 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
652 Input & Output configurations [extin/extout]
653 * Creative Card wo/Digital out [0x0003/0x1f03]
654 * Creative Card w/Digital out [0x0003/0x1f0f]
655 * Creative Card w/Digital CD in [0x000f/0x1f0f]
656 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
657 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
658 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
659 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
660 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
661 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
662 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
663 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
664 * Creative Card all ins and outs [0x3fff/0x7fff]
665
Takashi Iwaia4efc232005-11-17 17:24:26 +0100666 The power-management is supported.
667
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 Module snd-emu10k1x
669 -------------------
670
671 Module for Creative Emu10k1X (SB Live Dell OEM version)
672
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100673 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674
675 Module snd-ens1370
676 ------------------
677
678 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
679 * SoundBlaster PCI 64
680 * SoundBlaster PCI 128
681
682 joystick - Enable joystick (default off)
683
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100684 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685
Takashi Iwaid6ec8942006-01-20 14:05:06 +0100686 The power-management is supported.
687
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688 Module snd-ens1371
689 ------------------
690
691 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
692 * SoundBlaster PCI 64
693 * SoundBlaster PCI 128
694 * SoundBlaster Vibra PCI
695
696 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
697 0 = disable (default), 1 = auto-detect
698
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100699 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700
Takashi Iwaid6ec8942006-01-20 14:05:06 +0100701 The power-management is supported.
702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703 Module snd-es1688
704 -----------------
705
706 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
707
Krzysztof Helta20971b2010-05-10 09:47:32 +0200708 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
Krzysztof Helta20971b2010-05-10 09:47:32 +0200711 fm_port - port # for OPL3 (option; share the same port as default)
712
713 with isapnp=0, the following additional options are available:
714 port - port # for ES-1688 chip (0x220,0x240,0x260)
715 irq - IRQ # for ES-1688 chip (5,7,9,10)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 dma8 - DMA # for ES-1688 chip (0,1,3)
717
Krzysztof Helta20971b2010-05-10 09:47:32 +0200718 This module supports multiple cards and autoprobe (without MPU-401 port)
719 and PnP with the ES968 chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720
721 Module snd-es18xx
722 -----------------
723
724 Module for ESS AudioDrive ES-18xx sound cards.
725
Rene Herman64e0e2d2007-12-13 16:29:33 +0100726 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
727
728 with isapnp=0, the following options are available:
729
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 port - port # for ES-18xx chip (0x220,0x240,0x260)
731 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
732 fm_port - port # for FM (optional, not used)
733 irq - IRQ # for ES-18xx chip (5,7,9,10)
734 dma1 - first DMA # for ES-18xx chip (0,1,3)
735 dma2 - first DMA # for ES-18xx chip (0,1,3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100737 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
738 port if native ISA PnP routines are not used).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739 When dma2 is equal with dma1, the driver works as half-duplex.
740
741 The power-management is supported.
742
743 Module snd-es1938
744 -----------------
745
746 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
747
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100748 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
Takashi Iwaia4efc232005-11-17 17:24:26 +0100750 The power-management is supported.
751
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 Module snd-es1968
753 -----------------
754
755 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
756
757 total_bufsize - total buffer size in kB (1-4096kB)
758 pcm_substreams_p - playback channels (1-8, default=2)
759 pcm_substreams_c - capture channels (1-8, default=0)
760 clock - clock (0 = auto-detection)
761 use_pm - support the power-management (0 = off, 1 = on,
762 2 = auto (default))
763 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
764 joystick - enable joystick (default off)
765
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100766 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767
768 The power-management is supported.
769
770 Module snd-fm801
771 ----------------
772
773 Module for ForteMedia FM801 based PCI sound cards.
774
775 tea575x_tuner - Enable TEA575x tuner
776 - 1 = MediaForte 256-PCS
777 - 2 = MediaForte 256-PCPR
778 - 3 = MediaForte 64-PCR
779 - High 16-bits are video (radio) device number + 1
780 - example: 0x10002 (MediaForte 256-PCPR, device 1)
781
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100782 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783
Takashi Iwaia4efc232005-11-17 17:24:26 +0100784 The power-management is supported.
785
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200786 Module snd-gina20
787 -----------------
788
789 Module for Echoaudio Gina20
790
791 This module supports multiple cards.
792 The driver requires the firmware loader support on kernel.
793
794 Module snd-gina24
795 -----------------
796
797 Module for Echoaudio Gina24
798
799 This module supports multiple cards.
800 The driver requires the firmware loader support on kernel.
801
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 Module snd-gusclassic
803 ---------------------
804
805 Module for Gravis UltraSound Classic sound card.
806
807 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
808 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
809 dma1 - DMA # for GF1 chip (1,3,5,6,7)
810 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
811 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
812 voices - GF1 voices limit (14-32)
813 pcm_voices - reserved PCM voices
814
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100815 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816
817 Module snd-gusextreme
818 ---------------------
819
820 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
821
822 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
823 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
824 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
825 irq - IRQ # for ES-1688 chip (5,7,9,10)
826 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
827 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
828 dma8 - DMA # for ES-1688 chip (0,1,3)
829 dma1 - DMA # for GF1 chip (1,3,5,6,7)
830 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
831 voices - GF1 voices limit (14-32)
832 pcm_voices - reserved PCM voices
833
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100834 This module supports multiple cards and autoprobe (without MPU-401 port).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835
836 Module snd-gusmax
837 -----------------
838
839 Module for Gravis UltraSound MAX sound card.
840
841 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
842 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
843 dma1 - DMA # for GF1 chip (1,3,5,6,7)
844 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
845 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
846 voices - GF1 voices limit (14-32)
847 pcm_voices - reserved PCM voices
848
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100849 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850
851 Module snd-hda-intel
852 --------------------
853
Alexander Beregalov6ef10902008-08-13 00:10:55 +0400854 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
855 PCH, SCH),
856 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
857 RV630, RV635, RV670, RV770,
Takashi Iwai9b878192006-05-17 11:26:39 +0200858 VIA VT8251/VT8237A,
859 SIS966, ULI M5461
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860
Takashi Iwai5aba4f82008-01-07 15:16:37 +0100861 [Multiple options for each card instance]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862 model - force the model name
Takashi Iwai1dac6692012-09-13 14:59:47 +0200863 position_fix - Fix DMA pointer
864 -1 = system default: choose appropriate one per controller
865 hardware
866 0 = auto: falls back to LPIB when POSBUF doesn't work
867 1 = use LPIB
868 2 = POSBUF: use position buffer
869 3 = VIACOMBO: VIA-specific workaround for capture
870 4 = COMBO: use LPIB for playback, auto for capture stream
Takashi Iwai95904742007-05-19 17:06:42 +0200871 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
Takashi Iwaiae374d62009-02-13 08:33:55 +0100872 When the bit 8 (0x100) is set, the lower 8 bits are used
873 as the "fixed" codec slots; i.e. the driver probes the
874 slots regardless what hardware reports back
Takashi Iwaid4d9cd032008-12-19 15:19:11 +0100875 probe_only - Only probing and no codec initialization (default=off);
876 Useful to check the initial codec status for debugging
Takashi Iwai8c53b962008-06-10 17:53:35 +0200877 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
878 Passing -1 will make the driver to choose the appropriate
879 value based on the controller chip.
Takashi Iwai1e7b8c82009-06-17 17:30:54 +0200880 patch - Specifies the early "patch" files to modify the HD-audio
881 setup before initializing the codecs. This option is
882 available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
883 See HD-Audio.txt for details.
Takashi Iwai0920c9b2012-07-03 16:58:48 +0200884 beep_mode - Selects the beep registration mode (0=off, 1=on); default
Takashi Iwaid0193612009-11-16 12:03:49 +0100885 value is set via CONFIG_SND_HDA_INPUT_BEEP_MODE kconfig.
Takashi Iwai5aba4f82008-01-07 15:16:37 +0100886
887 [Single (global) options]
Takashi Iwai27346162006-01-12 18:28:44 +0100888 single_cmd - Use single immediate commands to communicate with
889 codecs (for debugging only)
Takashi Iwai134a11f2006-11-10 12:08:37 +0100890 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
Matt LaPlante19f59462009-04-27 15:06:31 +0200891 power_save - Automatic power-saving timeout (in second, 0 =
Takashi Iwai3723e2d2007-09-17 19:08:32 +0200892 disable)
Takashi Iwai6ab31742013-01-09 11:15:13 +0100893 power_save_controller - Support runtime D3 of HD-audio controller
894 (-1 = on for supported chip (default), false = off,
895 true = force to on even for unsupported hardware)
Pierre-Louis Bossart2ae66c22011-08-04 10:12:56 -0500896 align_buffer_size - Force rounding of buffer/period sizes to multiples
897 of 128 bytes. This is more efficient in terms of memory
898 access but isn't required by the HDA spec and prevents
899 users from specifying exact period/buffer sizes.
900 (default = on)
Takashi Iwai27fe48d92011-09-28 17:16:09 +0200901 snoop - Enable/disable snooping (default = on)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
Takashi Iwai5aba4f82008-01-07 15:16:37 +0100903 This module supports multiple cards and autoprobe.
904
Takashi Iwaicae51172008-12-19 08:36:53 +0100905 See Documentation/sound/alsa/HD-Audio.txt for more details about
906 HD-audio driver.
907
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 Each codec may have a model table for different configurations.
909 If your machine isn't listed there, the default (usually minimal)
910 configuration is set up. You can pass "model=<name>" option to
911 specify a certain model in such a case. There are different
Takashi Iwaicae51172008-12-19 08:36:53 +0100912 models depending on the codec chip. The list of available models
913 is found in HD-Audio-Models.txt
Takashi Iwaidb064e52006-03-16 16:04:58 +0100914
Masanari Iida9ad477a2013-03-17 02:57:28 +0900915 The model name "generic" is treated as a special case. When this
Takashi Iwai6d7b1d72007-02-26 15:56:46 +0100916 model is given, the driver uses the generic codec parser without
917 "codec-patch". It's sometimes good for testing and debugging.
918
Takashi Iwai62430082005-09-05 17:12:29 +0200919 If the default configuration doesn't work and one of the above
Takashi Iwai30bc4482008-12-09 08:23:45 +0100920 matches with your device, report it together with alsa-info.sh
921 output (with --no-upload option) to kernel bugzilla or alsa-devel
Takashi Iwai62430082005-09-05 17:12:29 +0200922 ML (see the section "Links and Addresses").
923
Takashi Iwai3723e2d2007-09-17 19:08:32 +0200924 power_save and power_save_controller options are for power-saving
925 mode. See powersave.txt for details.
Takashi Iwaidee1b662007-08-13 16:10:30 +0200926
Takashi Iwaic74db862005-05-12 14:26:27 +0200927 Note 2: If you get click noises on output, try the module option
928 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
929 register value without FIFO size correction as the current
930 DMA pointer. position_fix=2 will make the driver to use
931 the position buffer instead of reading SD_LPIB register.
Michael Kerrisk90f31e32008-09-01 14:03:50 +0200932 (Usually SD_LPIB register is more accurate than the
Takashi Iwaic74db862005-05-12 14:26:27 +0200933 position buffer.)
934
Takashi Iwaia6f2fd52012-02-28 11:58:40 +0100935 position_fix=3 is specific to VIA devices. The position
936 of the capture stream is checked from both LPIB and POSBUF
937 values. position_fix=4 is a combination mode, using LPIB
938 for playback and POSBUF for capture.
939
Takashi Iwai27346162006-01-12 18:28:44 +0100940 NB: If you get many "azx_get_response timeout" messages at
941 loading, it's likely a problem of interrupts (e.g. ACPI irq
942 routing). Try to boot with options like "pci=noacpi". Also, you
943 can try "single_cmd=1" module option. This will switch the
944 communication method between HDA controller and codecs to the
945 single immediate commands instead of CORB/RIRB. Basically, the
946 single command mode is provided only for BIOS, and you won't get
947 unsolicited events, too. But, at least, this works independently
948 from the irq. Remember this is a last resort, and should be
949 avoided as much as possible...
950
Takashi Iwai95904742007-05-19 17:06:42 +0200951 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
952 On some hardwares, you may need to add a proper probe_mask option
953 to avoid the "azx_get_response timeout" problem above, instead.
954 This occurs when the access to non-existing or non-working codec slot
955 (likely a modem one) causes a stall of the communication via HD-audio
956 bus. You can see which codec slots are probed by enabling
Takashi Iwai62cf8722008-05-20 12:15:15 +0200957 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
Takashi Iwai95904742007-05-19 17:06:42 +0200958 proc files. Then limit the slots to probe by probe_mask option.
959 For example, probe_mask=1 means to probe only the first slot, and
960 probe_mask=4 means only the third slot.
961
Takashi Iwaia4efc232005-11-17 17:24:26 +0100962 The power-management is supported.
963
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964 Module snd-hdsp
965 ---------------
966
967 Module for RME Hammerfall DSP audio interface(s)
968
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100969 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
971 Note: The firmware data can be automatically loaded via hotplug
972 when CONFIG_FW_LOADER is set. Otherwise, you need to load
973 the firmware via hdsploader utility included in alsa-tools
974 package.
975 The firmware data is found in alsa-firmware package.
976
977 Note: snd-page-alloc module does the job which snd-hammerfall-mem
978 module did formerly. It will allocate the buffers in advance
979 when any HDSP cards are found. To make the buffer
980 allocation sure, load snd-page-alloc module in the early
Takashi Iwaib6a96912005-05-30 18:27:03 +0200981 stage of boot sequence. See "Early Buffer Allocation"
982 section.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983
Takashi Iwai54704402005-06-03 11:27:00 +0200984 Module snd-hdspm
985 ----------------
986
987 Module for RME HDSP MADI board.
988
989 precise_ptr - Enable precise pointer, or disable.
990 line_outs_monitor - Send playback streams to analog outs by default.
991 enable_monitor - Enable Analog Out on Channel 63/64 by default.
992
993 See hdspm.txt for details.
994
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995 Module snd-ice1712
996 ------------------
997
998 Module for Envy24 (ICE1712) based PCI sound cards.
999 * MidiMan M Audio Delta 1010
1000 * MidiMan M Audio Delta 1010LT
1001 * MidiMan M Audio Delta DiO 2496
1002 * MidiMan M Audio Delta 66
1003 * MidiMan M Audio Delta 44
1004 * MidiMan M Audio Delta 410
1005 * MidiMan M Audio Audiophile 2496
1006 * TerraTec EWS 88MT
1007 * TerraTec EWS 88D
1008 * TerraTec EWX 24/96
1009 * TerraTec DMX 6Fire
Takashi Iwaic9bce912005-05-24 13:41:03 +02001010 * TerraTec Phase 88
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011 * Hoontech SoundTrack DSP 24
1012 * Hoontech SoundTrack DSP 24 Value
1013 * Hoontech SoundTrack DSP 24 Media 7.1
Takashi Iwaic9bce912005-05-24 13:41:03 +02001014 * Event Electronics, EZ8
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015 * Digigram VX442
Takashi Iwaic9bce912005-05-24 13:41:03 +02001016 * Lionstracs, Mediastaton
Alexander Beregalov6ef10902008-08-13 00:10:55 +04001017 * Terrasoniq TS 88
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018
1019 model - Use the given board model, one of the following:
1020 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1021 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
Takashi Iwaic9bce912005-05-24 13:41:03 +02001022 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1023 phase88, mediastation
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024 omni - Omni I/O support for MidiMan M-Audio Delta44/66
Matt LaPlantefa00e7e2006-11-30 04:55:36 +01001025 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026 in msec resolution, default value is 500 (0.5 sec)
1027
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001028 This module supports multiple cards and autoprobe. Note: The consumer part
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 is not used with all Envy24 based cards (for example in the MidiMan Delta
1030 serie).
1031
Takashi Iwaic9bce912005-05-24 13:41:03 +02001032 Note: The supported board is detected by reading EEPROM or PCI
1033 SSID (if EEPROM isn't available). You can override the
1034 model by passing "model" module option in case that the
1035 driver isn't configured properly or you want to try another
1036 type for testing.
1037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 Module snd-ice1724
1039 ------------------
1040
Takashi Iwaic9bce912005-05-24 13:41:03 +02001041 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +01001042 * MidiMan M Audio Revolution 5.1
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043 * MidiMan M Audio Revolution 7.1
Takashi Iwai56255062006-11-09 16:47:26 +01001044 * MidiMan M Audio Audiophile 192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045 * AMP Ltd AUDIO2000
Takashi Iwaic9bce912005-05-24 13:41:03 +02001046 * TerraTec Aureon 5.1 Sky
1047 * TerraTec Aureon 7.1 Space
1048 * TerraTec Aureon 7.1 Universe
1049 * TerraTec Phase 22
1050 * TerraTec Phase 28
1051 * AudioTrak Prodigy 7.1
Alexander Beregalov6ef10902008-08-13 00:10:55 +04001052 * AudioTrak Prodigy 7.1 LT
1053 * AudioTrak Prodigy 7.1 XT
1054 * AudioTrak Prodigy 7.1 HIFI
1055 * AudioTrak Prodigy 7.1 HD2
Takashi Iwaic9bce912005-05-24 13:41:03 +02001056 * AudioTrak Prodigy 192
1057 * Pontis MS300
1058 * Albatron K8X800 Pro II
1059 * Chaintech ZNF3-150
1060 * Chaintech ZNF3-250
1061 * Chaintech 9CJS
Takashi Iwai8cfbbac2005-05-27 12:10:40 +02001062 * Chaintech AV-710
Takashi Iwaic9bce912005-05-24 13:41:03 +02001063 * Shuttle SN25P
Shin-ya Okadaf31639b2007-10-23 15:08:18 +02001064 * Onkyo SE-90PCI
1065 * Onkyo SE-200PCI
Alexander Beregalov6ef10902008-08-13 00:10:55 +04001066 * ESI Juli@
Takashi Iwai72cbfd42009-05-06 17:33:19 +02001067 * ESI Maya44
Alexander Beregalov6ef10902008-08-13 00:10:55 +04001068 * Hercules Fortissimo IV
1069 * EGO-SYS WaveTerminal 192M
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070
1071 model - Use the given board model, one of the following:
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +01001072 revo51, revo71, amp2000, prodigy71, prodigy71lt,
Alexander Beregalov6ef10902008-08-13 00:10:55 +04001073 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
1074 juli, aureon51, aureon71, universe, ap192, k8x800,
1075 phase22, phase28, ms300, av710, se200pci, se90pci,
Takashi Iwai72cbfd42009-05-06 17:33:19 +02001076 fortissimo4, sn25p, WT192M, maya44
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001078 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Takashi Iwaic9bce912005-05-24 13:41:03 +02001080 Note: The supported board is detected by reading EEPROM or PCI
1081 SSID (if EEPROM isn't available). You can override the
1082 model by passing "model" module option in case that the
1083 driver isn't configured properly or you want to try another
1084 type for testing.
1085
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001086 Module snd-indigo
1087 -----------------
1088
1089 Module for Echoaudio Indigo
1090
1091 This module supports multiple cards.
1092 The driver requires the firmware loader support on kernel.
1093
1094 Module snd-indigodj
1095 -------------------
1096
1097 Module for Echoaudio Indigo DJ
1098
1099 This module supports multiple cards.
1100 The driver requires the firmware loader support on kernel.
1101
1102 Module snd-indigoio
1103 -------------------
1104
1105 Module for Echoaudio Indigo IO
1106
1107 This module supports multiple cards.
1108 The driver requires the firmware loader support on kernel.
1109
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 Module snd-intel8x0
1111 -------------------
1112
1113 Module for AC'97 motherboards from Intel and compatibles.
1114 * Intel i810/810E, i815, i820, i830, i84x, MX440
Alexander Beregalov6ef10902008-08-13 00:10:55 +04001115 ICH5, ICH6, ICH7, 6300ESB, ESB2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116 * SiS 7012 (SiS 735)
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001117 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1118 CK8, CK8S, MCP501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 * AMD AMD768, AMD8111
1120 * ALi m5455
1121
1122 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1123 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +02001124 See "AC97 Quirk Option" section below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125 buggy_irq - Enable workaround for buggy interrupts on some
Takashi Iwaia06147d2005-09-08 19:54:17 +02001126 motherboards (default yes on nForce chips,
1127 otherwise off)
1128 buggy_semaphore - Enable workaround for hardwares with buggy
1129 semaphores (e.g. on some ASUS laptops)
1130 (default off)
Takashi Iwai6c5cfd92006-11-28 17:18:25 +01001131 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1132 from the controller chip
1133 (0 = off, 1 = on, -1 = default)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001135 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
1137 Note: the latest driver supports auto-detection of chip clock.
1138 if you still encounter too fast playback, specify the clock
1139 explicitly via the module option "ac97_clock=41194".
1140
1141 Joystick/MIDI ports are not supported by this driver. If your
1142 motherboard has these devices, use the ns558 or snd-mpu401
1143 modules, respectively.
1144
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145 The power-management is supported.
1146
1147 Module snd-intel8x0m
1148 --------------------
1149
1150 Module for Intel ICH (i8x0) chipset MC97 modems.
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001151 * Intel i810/810E, i815, i820, i830, i84x, MX440
1152 ICH5, ICH6, ICH7
1153 * SiS 7013 (SiS 735)
1154 * NVidia NForce, NForce2, NForce2s, NForce3
1155 * AMD AMD8111
1156 * ALi m5455
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157
1158 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1159
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001160 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161
1162 Note: The default index value of this module is -2, i.e. the first
1163 slot is excluded.
1164
Takashi Iwaia4efc232005-11-17 17:24:26 +01001165 The power-management is supported.
1166
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167 Module snd-interwave
1168 --------------------
1169
1170 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1171 and other sound cards based on AMD InterWave (tm) chip.
1172
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1174 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1175 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1176 effect - 1 = InterWave effects enable (default 0);
1177 requires 8 voices
Rene Herman64e0e2d2007-12-13 16:29:33 +01001178 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1179
1180 with isapnp=0, the following options are available:
1181
1182 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1183 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1184 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1185 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001187 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188
1189 Module snd-interwave-stb
1190 ------------------------
1191
1192 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1193 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1194 circuit for extended control of bass, treble and master volume.
1195
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1197 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1198 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1199 effect - 1 = InterWave effects enable (default 0);
1200 requires 8 voices
Rene Herman64e0e2d2007-12-13 16:29:33 +01001201 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1202
1203 with isapnp=0, the following options are available:
1204
1205 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1206 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1207 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1208 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1209 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001211 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212
Krzysztof Helt44eba3e2009-12-23 18:02:41 +01001213 Module snd-jazz16
1214 -------------------
1215
1216 Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
1217 MVD1216 + MVA416 + MVA514.
1218
1219 port - port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
1220 irq - IRQ # for SB DSP chip (3,5,7,9,10,15)
1221 dma8 - DMA # for SB DSP chip (1,3)
1222 dma16 - DMA # for SB DSP chip (5,7)
1223 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1224 mpu_irq - MPU-401 irq # (2,3,5,7)
1225
1226 This module supports multiple cards.
1227
Linus Torvalds1da177e2005-04-16 15:20:36 -07001228 Module snd-korg1212
1229 -------------------
1230
1231 Module for Korg 1212 IO PCI card
1232
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001233 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001235 Module snd-layla20
1236 ------------------
1237
1238 Module for Echoaudio Layla20
1239
1240 This module supports multiple cards.
1241 The driver requires the firmware loader support on kernel.
1242
1243 Module snd-layla24
1244 ------------------
1245
1246 Module for Echoaudio Layla24
1247
1248 This module supports multiple cards.
1249 The driver requires the firmware loader support on kernel.
1250
Takashi Iwaid43f30102011-05-03 16:14:46 +02001251 Module snd-lola
1252 ---------------
1253
1254 Module for Digigram Lola PCI-e boards
1255
1256 This module supports multiple cards.
1257
Takashi Iwai8338c302009-04-14 12:30:36 +02001258 Module snd-lx6464es
1259 -------------------
1260
1261 Module for Digigram LX6464ES boards
1262
1263 This module supports multiple cards.
1264
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265 Module snd-maestro3
1266 -------------------
1267
1268 Module for Allegro/Maestro3 chips
1269
1270 external_amp - enable external amp (enabled by default)
1271 amp_gpio - GPIO pin number for external amp (0-15) or
1272 -1 for default pin (8 for allegro, 1 for
1273 others)
1274
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001275 This module supports autoprobe and multiple chips.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276
1277 Note: the binding of amplifier is dependent on hardware.
1278 If there is no sound even though all channels are unmuted, try to
1279 specify other gpio connection via amp_gpio option.
1280 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1281 option.
1282
1283 The power-management is supported.
1284
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001285 Module snd-mia
1286 ---------------
1287
1288 Module for Echoaudio Mia
1289
1290 This module supports multiple cards.
1291 The driver requires the firmware loader support on kernel.
1292
Martin Langer1841f6132006-03-27 12:41:01 +02001293 Module snd-miro
1294 ---------------
1295
1296 Module for Miro soundcards: miroSOUND PCM 1 pro,
1297 miroSOUND PCM 12,
1298 miroSOUND PCM 20 Radio.
1299
1300 port - Port # (0x530,0x604,0xe80,0xf40)
1301 irq - IRQ # (5,7,9,10,11)
1302 dma1 - 1st dma # (0,1,3)
1303 dma2 - 2nd dma # (0,1)
1304 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1305 mpu_irq - MPU-401 irq # (5,7,9,10)
1306 fm_port - FM Port # (0x388)
1307 wss - enable WSS mode
1308 ide - enable onboard ide support
1309
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310 Module snd-mixart
1311 -----------------
1312
1313 Module for Digigram miXart8 sound cards.
1314
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001315 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 Note: One miXart8 board will be represented as 4 alsa cards.
1317 See MIXART.txt for details.
1318
1319 When the driver is compiled as a module and the hotplug firmware
1320 is supported, the firmware data is loaded via hotplug automatically.
1321 Install the necessary firmware files in alsa-firmware package.
1322 When no hotplug fw loader is available, you need to load the
1323 firmware via mixartloader utility in alsa-tools package.
1324
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001325 Module snd-mona
1326 ---------------
1327
1328 Module for Echoaudio Mona
1329
1330 This module supports multiple cards.
1331 The driver requires the firmware loader support on kernel.
1332
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333 Module snd-mpu401
1334 -----------------
1335
1336 Module for MPU-401 UART devices.
1337
1338 port - port number or -1 (disable)
1339 irq - IRQ number or -1 (disable)
1340 pnp - PnP detection - 0 = disable, 1 = enable (default)
1341
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001342 This module supports multiple devices and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343
Takashi Iwaic96330b2009-01-28 08:23:03 +01001344 Module snd-msnd-classic
1345 -----------------------
1346
1347 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1348 soundcards.
1349
1350 io - Port # for msnd-classic card
1351 irq - IRQ # for msnd-classic card
1352 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1353 0xe0000 or 0xe8000)
1354 write_ndelay - enable write ndelay (default = 1)
1355 calibrate_signal - calibrate signal (default = 0)
1356 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1357 digital - Digital daughterboard present (default = 0)
1358 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1359 reset - Reset all devices
1360 mpu_io - MPU401 I/O port
1361 mpu_irq - MPU401 irq#
1362 ide_io0 - IDE port #0
1363 ide_io1 - IDE port #1
1364 ide_irq - IDE irq#
1365 joystick_io - Joystick I/O port
1366
1367 The driver requires firmware files "turtlebeach/msndinit.bin" and
1368 "turtlebeach/msndperm.bin" in the proper firmware directory.
1369
1370 See Documentation/sound/oss/MultiSound for important information
1371 about this driver. Note that it has been discontinued, but the
1372 Voyetra Turtle Beach knowledge base entry for it is still available
1373 at
Justin P. Mattock0ea6e612010-07-23 20:51:24 -07001374 http://www.turtlebeach.com
Takashi Iwaic96330b2009-01-28 08:23:03 +01001375
1376 Module snd-msnd-pinnacle
1377 ------------------------
1378
1379 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1380
1381 io - Port # for pinnacle/fiji card
1382 irq - IRQ # for pinnalce/fiji card
1383 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1384 0xe0000 or 0xe8000)
1385 write_ndelay - enable write ndelay (default = 1)
1386 calibrate_signal - calibrate signal (default = 0)
1387 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1388
1389 The driver requires firmware files "turtlebeach/pndspini.bin" and
1390 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1391
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 Module snd-mtpav
1393 ----------------
1394
1395 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1396 port).
1397
1398 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1399 irq - IRQ # for MTPAV (7,5, default=7)
1400 hwports - number of supported hardware ports, default=8.
1401
1402 Module supports only 1 card. This module has no enable option.
1403
Matthias Koenig68ab8012006-07-27 16:59:23 +02001404 Module snd-mts64
1405 ----------------
1406
1407 Module for Ego Systems (ESI) Miditerminal 4140
1408
1409 This module supports multiple devices.
1410 Requires parport (CONFIG_PARPORT).
1411
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412 Module snd-nm256
1413 ----------------
1414
1415 Module for NeoMagic NM256AV/ZX chips
1416
1417 playback_bufsize - max playback frame size in kB (4-128kB)
1418 capture_bufsize - max capture frame size in kB (4-128kB)
1419 force_ac97 - 0 or 1 (disabled by default)
1420 buffer_top - specify buffer top address
1421 use_cache - 0 or 1 (disabled by default)
1422 vaio_hack - alias buffer_top=0x25a800
1423 reset_workaround - enable AC97 RESET workaround for some laptops
Takashi Iwaid1f38cf2005-10-19 16:04:27 +02001424 reset_workaround2 - enable extended AC97 RESET workaround for some
1425 other laptops
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426
Takashi Iwai8a3fb4d2005-10-20 17:10:49 +02001427 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428
1429 The power-management is supported.
1430
1431 Note: on some notebooks the buffer address cannot be detected
1432 automatically, or causes hang-up during initialization.
Matt LaPlantefff92892006-10-03 22:47:42 +02001433 In such a case, specify the buffer top address explicitly via
1434 the buffer_top option.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435 For example,
1436 Sony F250: buffer_top=0x25a800
1437 Sony F270: buffer_top=0x272800
1438 The driver supports only ac97 codec. It's possible to force
1439 to initialize/use ac97 although it's not detected. In such a
1440 case, use force_ac97=1 option - but *NO* guarantee whether it
1441 works!
1442
1443 Note: The NM256 chip can be linked internally with non-AC97
1444 codecs. This driver supports only the AC97 codec, and won't work
1445 with machines with other (most likely CS423x or OPL3SAx) chips,
1446 even though the device is detected in lspci. In such a case, try
1447 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
Takashi Iwai62430082005-09-05 17:12:29 +02001448 but some doesn't have ISA PnP. You'll need to specify isapnp=0
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 and proper hardware parameters in the case without ISA PnP.
1450
1451 Note: some laptops need a workaround for AC97 RESET. For the
1452 known hardware like Dell Latitude LS and Sony PCG-F305, this
1453 workaround is enabled automatically. For other laptops with a
1454 hard freeze, you can try reset_workaround=1 option.
1455
Takashi Iwaid1f38cf2005-10-19 16:04:27 +02001456 Note: Dell Latitude CSx laptops have another problem regarding
1457 AC97 RESET. On these laptops, reset_workaround2 option is
1458 turned on as default. This option is worth to try if the
1459 previous reset_workaround option doesn't help.
1460
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 Note: This driver is really crappy. It's a porting from the
1462 OSS driver, which is a result of black-magic reverse engineering.
1463 The detection of codec will fail if the driver is loaded *after*
1464 X-server as described above. You might be able to force to load
1465 the module, but it may result in hang-up. Hence, make sure that
1466 you load this module *before* X if you encounter this kind of
1467 problem.
1468
1469 Module snd-opl3sa2
1470 ------------------
1471
1472 Module for Yamaha OPL3-SA2/SA3 sound cards.
1473
Rene Herman64e0e2d2007-12-13 16:29:33 +01001474 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1475
1476 with isapnp=0, the following options are available:
1477
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478 port - control port # for OPL3-SA chip (0x370)
1479 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1480 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1481 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1482 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1483 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1484 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1485 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001487 This module supports multiple cards and ISA PnP. It does not support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1489
1490 The power-management is supported.
1491
1492 Module snd-opti92x-ad1848
1493 -------------------------
1494
1495 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1496 Module works with OAK Mozart cards as well.
1497
Rene Herman64e0e2d2007-12-13 16:29:33 +01001498 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1499
1500 with isapnp=0, the following options are available:
1501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1503 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1504 fm_port - port # for OPL3 device (0x388)
1505 irq - IRQ # for WSS chip (5,7,9,10,11)
1506 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1507 dma1 - first DMA # for WSS chip (0,1,3)
1508
1509 This module supports only one card, autoprobe and PnP.
1510
1511 Module snd-opti92x-cs4231
1512 -------------------------
1513
1514 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1515
Rene Herman64e0e2d2007-12-13 16:29:33 +01001516 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1517
1518 with isapnp=0, the following options are available:
1519
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1521 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1522 fm_port - port # for OPL3 device (0x388)
1523 irq - IRQ # for WSS chip (5,7,9,10,11)
1524 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1525 dma1 - first DMA # for WSS chip (0,1,3)
1526 dma2 - second DMA # for WSS chip (0,1,3)
1527
1528 This module supports only one card, autoprobe and PnP.
1529
1530 Module snd-opti93x
1531 ------------------
1532
1533 Module for sound cards based on OPTi 82c93x chips.
1534
Rene Herman64e0e2d2007-12-13 16:29:33 +01001535 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1536
1537 with isapnp=0, the following options are available:
1538
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1540 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1541 fm_port - port # for OPL3 device (0x388)
1542 irq - IRQ # for WSS chip (5,7,9,10,11)
1543 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1544 dma1 - first DMA # for WSS chip (0,1,3)
1545 dma2 - second DMA # for WSS chip (0,1,3)
1546
1547 This module supports only one card, autoprobe and PnP.
1548
Clemens Ladisch48a8a262008-01-21 08:43:06 +01001549 Module snd-oxygen
1550 -----------------
1551
Clemens Ladisch66410bf2011-01-10 16:20:29 +01001552 Module for sound cards based on the C-Media CMI8786/8787/8788 chip:
Clemens Ladisch48a8a262008-01-21 08:43:06 +01001553 * Asound A-8788
Clemens Ladisch76bc7a02012-05-01 17:40:30 +02001554 * Asus Xonar DG/DGX
Clemens Ladisch48a8a262008-01-21 08:43:06 +01001555 * AuzenTech X-Meridian
Clemens Ladisch8443d2e2011-01-10 16:17:26 +01001556 * AuzenTech X-Meridian 2G
Clemens Ladisch48a8a262008-01-21 08:43:06 +01001557 * Bgears b-Enspirer
1558 * Club3D Theatron DTS
Clemens Ladischde04b102008-11-26 10:37:23 +01001559 * HT-Omega Claro (plus)
1560 * HT-Omega Claro halo (XT)
Clemens Ladisch31f86ba2010-11-02 17:18:23 +01001561 * Kuroutoshikou CMI8787-HG2PCI
Clemens Ladisch48a8a262008-01-21 08:43:06 +01001562 * Razer Barracuda AC-1
1563 * Sondigo Inferno
Clemens Ladisch45c1de82010-11-02 17:08:37 +01001564 * TempoTec HiFier Fantasia
Clemens Ladisch2146dcf2010-11-03 12:26:35 +01001565 * TempoTec HiFier Serenade
Clemens Ladisch48a8a262008-01-21 08:43:06 +01001566
1567 This module supports autoprobe and multiple cards.
1568
Stas Sergeevd08cd582008-03-06 11:01:44 +01001569 Module snd-pcsp
1570 -----------------
1571
1572 Module for internal PC-Speaker.
1573
Stas Sergeevbcc2c6b2009-11-01 11:13:19 +01001574 nopcm - Disable PC-Speaker PCM sound. Only beeps remain.
Stas Sergeevd08cd582008-03-06 11:01:44 +01001575 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1576
1577 This module supports system beeps, some kind of PCM playback and
1578 even a few mixer controls.
1579
Markus Bollingere12229b2005-12-06 13:55:26 +01001580 Module snd-pcxhr
1581 ----------------
1582
1583 Module for Digigram PCXHR boards
1584
1585 This module supports multiple cards.
1586
Matthias Koenig757e1192007-01-25 13:15:05 +01001587 Module snd-portman2x4
1588 ---------------------
1589
1590 Module for Midiman Portman 2x4 parallel port MIDI interface
1591
1592 This module supports multiple cards.
1593
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594 Module snd-powermac (on ppc only)
1595 ---------------------------------
1596
1597 Module for PowerMac, iMac and iBook on-board soundchips
1598
1599 enable_beep - enable beep using PCM (enabled as default)
1600
1601 Module supports autoprobe a chip.
1602
Masanari Iida40e47122012-03-04 23:16:11 +09001603 Note: the driver may have problems regarding endianness.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001604
1605 The power-management is supported.
1606
Takashi Iwai2c484df2005-06-30 18:54:04 +02001607 Module snd-pxa2xx-ac97 (on arm only)
1608 ------------------------------------
1609
1610 Module for AC97 driver for the Intel PXA2xx chip
1611
1612 For ARM architecture only.
1613
Takashi Iwaia4efc232005-11-17 17:24:26 +01001614 The power-management is supported.
1615
Peter Gruber109a9632006-03-27 13:10:28 +02001616 Module snd-riptide
1617 ------------------
1618
1619 Module for Conexant Riptide chip
1620
1621 joystick_port - Joystick port # (default: 0x200)
1622 mpu_port - MPU401 port # (default: 0x330)
1623 opl3_port - OPL3 port # (default: 0x388)
1624
1625 This module supports multiple cards.
1626 The driver requires the firmware loader support on kernel.
1627 You need to install the firmware file "riptide.hex" to the standard
1628 firmware path (e.g. /lib/firmware).
1629
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630 Module snd-rme32
1631 ----------------
1632
1633 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1634 Prodif96 and Prodif Gold) sound cards.
1635
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001636 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001637
1638 Module snd-rme96
1639 ----------------
1640
1641 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1642
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001643 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644
1645 Module snd-rme9652
1646 ------------------
1647
1648 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1649
1650 precise_ptr - Enable precise pointer (doesn't work reliably).
1651 (default = 0)
1652
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001653 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654
1655 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1656 module did formerly. It will allocate the buffers in advance
1657 when any RME9652 cards are found. To make the buffer
1658 allocation sure, load snd-page-alloc module in the early
Takashi Iwaib6a96912005-05-30 18:27:03 +02001659 stage of boot sequence. See "Early Buffer Allocation"
1660 section.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001661
1662 Module snd-sa11xx-uda1341 (on arm only)
1663 ---------------------------------------
1664
1665 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1666
1667 Module supports only one card.
1668 Module has no enable and index options.
1669
Takashi Iwaia4efc232005-11-17 17:24:26 +01001670 The power-management is supported.
1671
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672 Module snd-sb8
1673 --------------
1674
1675 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1676 SoundBlaster 2.0,
1677 SoundBlaster Pro
1678
1679 port - port # for SB DSP chip (0x220,0x240,0x260)
1680 irq - IRQ # for SB DSP chip (5,7,9,10)
1681 dma8 - DMA # for SB DSP chip (1,3)
1682
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001683 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684
Takashi Iwaia4efc232005-11-17 17:24:26 +01001685 The power-management is supported.
1686
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687 Module snd-sb16 and snd-sbawe
1688 -----------------------------
1689
1690 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1691 SoundBlaster AWE 32 (PnP),
1692 SoundBlaster AWE 64 PnP
1693
Rene Herman64e0e2d2007-12-13 16:29:33 +01001694 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1695 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1696 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1697
1698 with isapnp=0, the following options are available:
1699
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1701 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1702 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1703 (snd-sbawe module only)
1704 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1705 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1706 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001708 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709
1710 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1711 disable 16bit DMA with dma16 = -1 module parameter.
1712 Also, all Sound Blaster 16 type cards can operate in 16-bit
1713 half duplex mode through 8-bit DMA channel by disabling their
1714 16-bit DMA channel.
1715
Takashi Iwaia4efc232005-11-17 17:24:26 +01001716 The power-management is supported.
1717
Takashi Iwai074a6e92007-09-11 22:10:14 +02001718 Module snd-sc6000
1719 -----------------
1720
Krzysztof Heltb0ec3a32009-05-03 10:39:19 +02001721 Module for Gallant SC-6000 soundcard and later models: SC-6600
1722 and SC-7000.
Takashi Iwai074a6e92007-09-11 22:10:14 +02001723
1724 port - Port # (0x220 or 0x240)
1725 mss_port - MSS Port # (0x530 or 0xe80)
1726 irq - IRQ # (5,7,9,10,11)
Krzysztof Helt7b758d22007-09-17 14:42:49 +02001727 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
Takashi Iwai074a6e92007-09-11 22:10:14 +02001728 dma - DMA # (1,3,0)
Krzysztof Heltb0ec3a32009-05-03 10:39:19 +02001729 joystick - Enable gameport - 0 = disable (default), 1 = enable
Takashi Iwai074a6e92007-09-11 22:10:14 +02001730
1731 This module supports multiple cards.
1732
1733 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1734
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735 Module snd-sscape
1736 -----------------
1737
Krzysztof Heltacd471002009-10-01 00:10:34 +02001738 Module for ENSONIQ SoundScape cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739
1740 port - Port # (PnP setup)
Takashi Iwaiadf12952007-09-17 16:26:16 +02001741 wss_port - WSS Port # (PnP setup)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742 irq - IRQ # (PnP setup)
1743 mpu_irq - MPU-401 IRQ # (PnP setup)
1744 dma - DMA # (PnP setup)
Takashi Iwaiadf12952007-09-17 16:26:16 +02001745 dma2 - 2nd DMA # (PnP setup, -1 to disable)
Krzysztof Helt1cb0fde2009-10-05 18:18:57 +02001746 joystick - Enable gameport - 0 = disable (default), 1 = enable
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747
Krzysztof Heltacd471002009-10-01 00:10:34 +02001748 This module supports multiple cards.
1749
1750 The driver requires the firmware loader support on kernel.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751
1752 Module snd-sun-amd7930 (on sparc only)
1753 --------------------------------------
1754
1755 Module for AMD7930 sound chips found on Sparcs.
1756
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001757 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758
1759 Module snd-sun-cs4231 (on sparc only)
1760 -------------------------------------
1761
1762 Module for CS4231 sound chips found on Sparcs.
1763
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001764 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765
Takashi Iwai1bd9deb2005-06-30 18:26:20 +02001766 Module snd-sun-dbri (on sparc only)
1767 -----------------------------------
1768
1769 Module for DBRI sound chips found on Sparcs.
1770
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001771 This module supports multiple cards.
Takashi Iwai1bd9deb2005-06-30 18:26:20 +02001772
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773 Module snd-wavefront
1774 --------------------
1775
1776 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1777
Rene Herman64e0e2d2007-12-13 16:29:33 +01001778 use_cs4232_midi - Use CS4232 MPU-401 interface
1779 (inaccessibly located inside your computer)
1780 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1781
1782 with isapnp=0, the following options are available:
1783
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784 cs4232_pcm_port - Port # for CS4232 PCM interface.
1785 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1786 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1787 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 ics2115_port - Port # for ICS2115
1789 ics2115_irq - IRQ # for ICS2115
1790 fm_port - FM OPL-3 Port #
1791 dma1 - DMA1 # for CS4232 PCM interface.
1792 dma2 - DMA2 # for CS4232 PCM interface.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793
Takashi Iwaic2b12392007-08-21 15:20:26 +02001794 The below are options for wavefront_synth features:
1795 wf_raw - Assume that we need to boot the OS (default:no)
1796 If yes, then during driver loading, the state of the board is
1797 ignored, and we reset the board and load the firmware anyway.
1798 fx_raw - Assume that the FX process needs help (default:yes)
1799 If false, we'll leave the FX processor in whatever state it is
1800 when the driver is loaded. The default is to download the
1801 microprogram and associated coefficients to set it up for
1802 "default" operation, whatever that means.
1803 debug_default - Debug parameters for card initialization
1804 wait_usecs - How long to wait without sleeping, usecs
1805 (default:150)
1806 This magic number seems to give pretty optimal throughput
1807 based on my limited experimentation.
1808 If you want to play around with it and find a better value, be
1809 my guest. Remember, the idea is to get a number that causes us
1810 to just busy wait for as many WaveFront commands as possible,
1811 without coming up with a number so large that we hog the whole
1812 CPU.
1813 Specifically, with this number, out of about 134,000 status
1814 waits, only about 250 result in a sleep.
1815 sleep_interval - How long to sleep when waiting for reply
1816 (default: 100)
1817 sleep_tries - How many times to try sleeping during a wait
1818 (default: 50)
1819 ospath - Pathname to processed ICS2115 OS firmware
1820 (default:wavefront.os)
1821 The path name of the ISC2115 OS firmware. In the recent
1822 version, it's handled via firmware loader framework, so it
1823 must be installed in the proper path, typically,
1824 /lib/firmware.
1825 reset_time - How long to wait for a reset to take effect
1826 (default:2)
1827 ramcheck_time - How many seconds to wait for the RAM test
1828 (default:20)
1829 osrun_time - How many seconds to wait for the ICS2115 OS
1830 (default:10)
1831
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001832 This module supports multiple cards and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001833
Takashi Iwaic2b12392007-08-21 15:20:26 +02001834 Note: the firmware file "wavefront.os" was located in the earlier
1835 version in /etc. Now it's loaded via firmware loader, and
1836 must be in the proper firmware path, such as /lib/firmware.
1837 Copy (or symlink) the file appropriately if you get an error
1838 regarding firmware downloading after upgrading the kernel.
1839
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840 Module snd-sonicvibes
1841 ---------------------
1842
1843 Module for S3 SonicVibes PCI sound cards.
1844 * PINE Schubert 32 PCI
1845
1846 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1847 - SoundCard must have onboard SRAM for this.
1848 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1849
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001850 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001851
1852 Module snd-serial-u16550
1853 ------------------------
1854
1855 Module for UART16550A serial MIDI ports.
1856
1857 port - port # for UART16550A chip
1858 irq - IRQ # for UART16550A chip, -1 = poll mode
1859 speed - speed in bauds (9600,19200,38400,57600,115200)
1860 38400 = default
1861 base - base for divisor in bauds (57600,115200,230400,460800)
1862 115200 = default
1863 outs - number of MIDI ports in a serial port (1-4)
1864 1 = default
1865 adaptor - Type of adaptor.
1866 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1867 3 = MS-124W M/B, 4 = Generic
1868
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001869 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -07001870 thus the main port must be specified!!! Other options are optional.
1871
1872 Module snd-trident
1873 ------------------
1874
1875 Module for Trident 4DWave DX/NX sound cards.
1876 * Best Union Miss Melody 4DWave PCI
1877 * HIS 4DWave PCI
1878 * Warpspeed ONSpeed 4DWave PCI
1879 * AzTech PCI 64-Q3D
1880 * Addonics SV 750
1881 * CHIC True Sound 4Dwave
1882 * Shark Predator4D-PCI
1883 * Jaton SonicWave 4D
Alexander Beregalov6ef10902008-08-13 00:10:55 +04001884 * SiS SI7018 PCI Audio
1885 * Hoontech SoundTrack Digital 4DWave NX
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886
1887 pcm_channels - max channels (voices) reserved for PCM
1888 wavetable_size - max wavetable size in kB (4-?kb)
1889
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001890 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891
1892 The power-management is supported.
1893
Clemens Ladisch63978ab2009-12-14 12:48:35 +01001894 Module snd-ua101
1895 ----------------
1896
Clemens Ladische584bc32010-03-01 16:20:37 +01001897 Module for the Edirol UA-101/UA-1000 audio/MIDI interfaces.
Clemens Ladisch63978ab2009-12-14 12:48:35 +01001898
1899 This module supports multiple devices, autoprobe and hotplugging.
1900
Linus Torvalds1da177e2005-04-16 15:20:36 -07001901 Module snd-usb-audio
1902 --------------------
1903
1904 Module for USB audio and USB MIDI devices.
1905
1906 vid - Vendor ID for the device (optional)
1907 pid - Product ID for the device (optional)
Takashi Iwai8a8f2662008-08-13 15:27:43 +02001908 nrpacks - Max. number of packets per URB (default: 8)
Thibault LE MEURe3113342006-03-14 11:44:53 +01001909 device_setup - Device specific magic number (optional)
1910 - Influence depends on the device
1911 - Default: 0x0000
Takashi Iwai7a9b8062008-08-13 15:40:53 +02001912 ignore_ctl_error - Ignore any USB-controller regarding mixer
1913 interface (default: no)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001915 This module supports multiple devices, autoprobe and hotplugging.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916
Takashi Iwai8a8f2662008-08-13 15:27:43 +02001917 NB: nrpacks parameter can be modified dynamically via sysfs.
1918 Don't put the value over 20. Changing via sysfs has no sanity
1919 check.
Takashi Iwai7a9b8062008-08-13 15:40:53 +02001920 NB: ignore_ctl_error=1 may help when you get an error at accessing
1921 the mixer element such as URB error -22. This happens on some
1922 buggy USB device or the controller.
Takashi Iwai8a8f2662008-08-13 15:27:43 +02001923
Daniel Mack523f1dc2007-03-26 19:11:24 +02001924 Module snd-usb-caiaq
1925 --------------------
1926
1927 Module for caiaq UB audio interfaces,
1928 * Native Instruments RigKontrol2
1929 * Native Instruments Kore Controller
1930 * Native Instruments Audio Kontrol 1
1931 * Native Instruments Audio 8 DJ
1932
1933 This module supports multiple devices, autoprobe and hotplugging.
1934
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935 Module snd-usb-usx2y
1936 --------------------
1937
1938 Module for Tascam USB US-122, US-224 and US-428 devices.
1939
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001940 This module supports multiple devices, autoprobe and hotplugging.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001941
1942 Note: you need to load the firmware via usx2yloader utility included
1943 in alsa-tools and alsa-firmware packages.
1944
1945 Module snd-via82xx
1946 ------------------
1947
1948 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001949 8233A, 8233C, 8235, 8237 (south) bridge.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001950
1951 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1952 [VIA686A/686B only]
1953 joystick - Enable joystick (default off) [VIA686A/686B only]
1954 ac97_clock - AC'97 codec clock base (default 48000Hz)
1955 dxs_support - support DXS channels,
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001956 0 = auto (default), 1 = enable, 2 = disable,
1957 3 = 48k only, 4 = no VRA, 5 = enable any sample
1958 rate and different sample rates on different
1959 channels
1960 [VIA8233/C, 8235, 8237 only]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +02001962 See "AC97 Quirk Option" section below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001964 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965
1966 Note: on some SMP motherboards like MSI 694D the interrupts might
1967 not be generated properly. In such a case, please try to
1968 set the SMP (or MPS) version on BIOS to 1.1 instead of
1969 default value 1.4. Then the interrupt number will be
1970 assigned under 15. You might also upgrade your BIOS.
1971
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001972 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973 channels as the first PCM. On these channels, up to 4
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001974 streams can be played at the same time, and the controller
1975 can perform sample rate conversion with separate rates for
1976 each channel.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001977 As default (dxs_support = 0), 48k fixed rate is chosen
1978 except for the known devices since the output is often
1979 noisy except for 48k on some mother boards due to the
1980 bug of BIOS.
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001981 Please try once dxs_support=5 and if it works on other
Linus Torvalds1da177e2005-04-16 15:20:36 -07001982 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1983 know the PCI subsystem vendor/device id's (output of
1984 "lspci -nv").
Takashi Iwaicdc27f32005-05-27 11:11:02 +02001985 If dxs_support=5 does not work, try dxs_support=4; if it
1986 doesn't work too, try dxs_support=1. (dxs_support=1 is
Takashi Iwai62430082005-09-05 17:12:29 +02001987 usually for old motherboards. The correct implemented
Takashi Iwaicdc27f32005-05-27 11:11:02 +02001988 board should work with 4 or 5.) If it still doesn't
Linus Torvalds1da177e2005-04-16 15:20:36 -07001989 work and the default setting is ok, dxs_support=3 is the
1990 right choice. If the default setting doesn't work at all,
1991 try dxs_support=2 to disable the DXS channels.
1992 In any cases, please let us know the result and the
Takashi Iwai62430082005-09-05 17:12:29 +02001993 subsystem vendor/device ids. See "Links and Addresses"
1994 below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001995
1996 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
Takashi Iwai62430082005-09-05 17:12:29 +02001997 additionally. The mpu_port option is for VIA686 chips only.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998
Takashi Iwaia4efc232005-11-17 17:24:26 +01001999 The power-management is supported.
2000
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001 Module snd-via82xx-modem
2002 ------------------------
2003
2004 Module for VIA82xx AC97 modem
2005
2006 ac97_clock - AC'97 codec clock base (default 48000Hz)
2007
Clemens Ladischb7fe4622005-10-04 08:46:51 +02002008 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009
2010 Note: The default index value of this module is -2, i.e. the first
2011 slot is excluded.
2012
Takashi Iwaia4efc232005-11-17 17:24:26 +01002013 The power-management is supported.
2014
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015 Module snd-virmidi
2016 ------------------
2017
2018 Module for virtual rawmidi devices.
2019 This module creates virtual rawmidi devices which communicate
2020 to the corresponding ALSA sequencer ports.
2021
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01002022 midi_devs - MIDI devices # (1-4, default=4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01002024 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025
Clemens Ladisch48a8a262008-01-21 08:43:06 +01002026 Module snd-virtuoso
2027 -------------------
2028
Clemens Ladischb532d6b2011-01-10 16:23:57 +01002029 Module for sound cards based on the Asus AV66/AV100/AV200 chips,
2030 i.e., Xonar D1, DX, D2, D2X, DS, Essence ST (Deluxe), Essence STX,
2031 HDAV1.3 (Deluxe), and HDAV1.3 Slim.
Clemens Ladisch48a8a262008-01-21 08:43:06 +01002032
2033 This module supports autoprobe and multiple cards.
2034
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 Module snd-vx222
2036 ----------------
2037
2038 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
2039
2040 mic - Enable Microphone on V222 Mic (NYI)
2041 ibl - Capture IBL size. (default = 0, minimum size)
2042
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01002043 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044
2045 When the driver is compiled as a module and the hotplug firmware
2046 is supported, the firmware data is loaded via hotplug automatically.
2047 Install the necessary firmware files in alsa-firmware package.
2048 When no hotplug fw loader is available, you need to load the
2049 firmware via vxloader utility in alsa-tools package. To invoke
Lucas De Marchi970e2482012-03-30 13:37:16 -07002050 vxloader automatically, add the following to /etc/modprobe.d/alsa.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051
2052 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
2053
2054 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
2055 /etc/modules.conf, instead.)
2056 IBL size defines the interrupts period for PCM. The smaller size
2057 gives smaller latency but leads to more CPU consumption, too.
2058 The size is usually aligned to 126. As default (=0), the smallest
2059 size is chosen. The possible IBL values can be found in
2060 /proc/asound/cardX/vx-status proc file.
2061
Takashi Iwaia4efc232005-11-17 17:24:26 +01002062 The power-management is supported.
2063
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064 Module snd-vxpocket
2065 -------------------
2066
Takashi Iwai6d00a312005-06-30 13:40:51 +02002067 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002068
2069 ibl - Capture IBL size. (default = 0, minimum size)
2070
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01002071 This module supports multiple cards. The module is compiled only when
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072 PCMCIA is supported on kernel.
2073
Takashi Iwai62430082005-09-05 17:12:29 +02002074 With the older 2.6.x kernel, to activate the driver via the card
2075 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
2076 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
2077 longer require a config file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078
2079 When the driver is compiled as a module and the hotplug firmware
2080 is supported, the firmware data is loaded via hotplug automatically.
2081 Install the necessary firmware files in alsa-firmware package.
2082 When no hotplug fw loader is available, you need to load the
2083 firmware via vxloader utility in alsa-tools package.
2084
2085 About capture IBL, see the description of snd-vx222 module.
2086
Takashi Iwaied7cbe32006-05-11 11:30:10 +02002087 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
Takashi Iwai62430082005-09-05 17:12:29 +02002088 ALSA 1.0.10.
2089
Takashi Iwaia4efc232005-11-17 17:24:26 +01002090 The power-management is supported.
2091
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092 Module snd-ymfpci
2093 -----------------
2094
2095 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
2096
2097 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
2098 1 (auto-detect for YMF744/754 only)
2099 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
2100 1 (auto-detect for YMF744/754 only)
2101 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
2102 1 (auto-detect)
2103 rear_switch - enable shared rear/line-in switch (bool)
2104
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01002105 This module supports autoprobe and multiple chips.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106
2107 The power-management is supported.
2108
2109 Module snd-pdaudiocf
2110 --------------------
2111
2112 Module for Sound Core PDAudioCF sound card.
2113
Takashi Iwaia4efc232005-11-17 17:24:26 +01002114 The power-management is supported.
2115
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116
Takashi Iwai62430082005-09-05 17:12:29 +02002117AC97 Quirk Option
2118=================
2119
2120The ac97_quirk option is used to enable/override the workaround for
2121specific devices on drivers for on-board AC'97 controllers like
2122snd-intel8x0. Some hardware have swapped output pins between Master
2123and Headphone, or Surround (thanks to confusion of AC'97
2124specifications from version to version :-)
2125
2126The driver provides the auto-detection of known problematic devices,
2127but some might be unknown or wrongly detected. In such a case, pass
2128the proper value with this option.
2129
2130The following strings are accepted:
2131 - default Don't override the default setting
Takashi Iwai10e4097f2005-11-17 11:04:55 +01002132 - none Disable the quirk
Takashi Iwai62430082005-09-05 17:12:29 +02002133 - hp_only Bind Master and Headphone controls as a single control
2134 - swap_hp Swap headphone and master controls
2135 - swap_surround Swap master and surround controls
2136 - ad_sharing For AD1985, turn on OMS bit and use headphone
2137 - alc_jack For ALC65x, turn on the jack sense mode
2138 - inv_eapd Inverted EAPD implementation
2139 - mute_led Bind EAPD bit for turning on/off mute LED
2140
2141For backward compatibility, the corresponding integer value -1, 0,
2142... are accepted, too.
2143
2144For example, if "Master" volume control has no effect on your device
2145but only "Headphone" does, pass ac97_quirk=hp_only module option.
2146
2147
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148Configuring Non-ISAPNP Cards
2149============================
2150
2151When the kernel is configured with ISA-PnP support, the modules
2152supporting the isapnp cards will have module options "isapnp".
2153If this option is set, *only* the ISA-PnP devices will be probed.
2154For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2155together with the proper i/o and irq configuration.
2156
2157When the kernel is configured without ISA-PnP support, isapnp option
2158will be not built in.
2159
2160
2161Module Autoloading Support
2162==========================
2163
2164The ALSA drivers can be loaded automatically on demand by defining
2165module aliases. The string 'snd-card-%1' is requested for ALSA native
2166devices where %i is sound card number from zero to seven.
2167
2168To auto-load an ALSA driver for OSS services, define the string
2169'sound-slot-%i' where %i means the slot number for OSS, which
2170corresponds to the card index of ALSA. Usually, define this
Tobias Klauserd533f672005-09-10 00:26:46 -07002171as the same card module.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002172
2173An example configuration for a single emu10k1 card is like below:
Lucas De Marchi970e2482012-03-30 13:37:16 -07002174----- /etc/modprobe.d/alsa.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175alias snd-card-0 snd-emu10k1
2176alias sound-slot-0 snd-emu10k1
Lucas De Marchi970e2482012-03-30 13:37:16 -07002177----- /etc/modprobe.d/alsa.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178
2179The available number of auto-loaded sound cards depends on the module
2180option "cards_limit" of snd module. As default it's set to 1.
2181To enable the auto-loading of multiple cards, specify the number of
2182sound cards in that option.
2183
2184When multiple cards are available, it'd better to specify the index
2185number for each card via module option, too, so that the order of
2186cards is kept consistent.
2187
2188An example configuration for two sound cards is like below:
2189
Lucas De Marchi970e2482012-03-30 13:37:16 -07002190----- /etc/modprobe.d/alsa.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -07002191# ALSA portion
2192options snd cards_limit=2
2193alias snd-card-0 snd-interwave
2194alias snd-card-1 snd-ens1371
2195options snd-interwave index=0
2196options snd-ens1371 index=1
2197# OSS/Free portion
2198alias sound-slot-0 snd-interwave
2199alias sound-slot-1 snd-ens1371
Lucas De Marchi970e2482012-03-30 13:37:16 -07002200----- /etc/modprobe.d/alsa.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201
2202In this example, the interwave card is always loaded as the first card
2203(index 0) and ens1371 as the second (index 1).
2204
Takashi Iwai304cd072007-10-26 15:10:15 +02002205Alternative (and new) way to fixate the slot assignment is to use
2206"slots" option of snd module. In the case above, specify like the
2207following:
2208
2209options snd slots=snd-interwave,snd-ens1371
2210
2211Then, the first slot (#0) is reserved for snd-interwave driver, and
2212the second (#1) for snd-ens1371. You can omit index option in each
2213driver if slots option is used (although you can still have them at
2214the same time as long as they don't conflict).
2215
2216The slots option is especially useful for avoiding the possible
2217hot-plugging and the resultant slot conflict. For example, in the
2218case above again, the first two slots are already reserved. If any
2219other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2220snd-ens1371, it will be assigned to the third or later slot.
2221
Takashi Iwaia93bbaa2008-05-27 17:59:24 +02002222When a module name is given with '!', the slot will be given for any
2223modules but that name. For example, "slots=!snd-pcsp" will reserve
2224the first slot for any modules but snd-pcsp.
2225
Linus Torvalds1da177e2005-04-16 15:20:36 -07002226
2227ALSA PCM devices to OSS devices mapping
2228=======================================
2229
2230/dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2231/dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2232/dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2233/dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2234/dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2235/dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2236/dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2237/dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2238/dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2239
2240The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2241sound card number and second means device number. The ALSA devices
2242have either 'c' or 'p' suffix indicating the direction, capture and
2243playback, respectively.
2244
2245Please note that the device mapping above may be varied via the module
2246options of snd-pcm-oss module.
2247
2248
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249Proc interfaces (/proc/asound)
2250==============================
2251
2252/proc/asound/card#/pcm#[cp]/oss
2253-------------------------------
Sylvestre Ledruf65e51d2011-04-04 15:04:46 -07002254 String "erase" - erase all additional information about OSS applications
Linus Torvalds1da177e2005-04-16 15:20:36 -07002255 String "<app_name> <fragments> <fragment_size> [<options>]"
2256
2257 <app_name> - name of application with (higher priority) or without path
2258 <fragments> - number of fragments or zero if auto
2259 <fragment_size> - size of fragment in bytes or zero if auto
2260 <options> - optional parameters
2261 - disable the application tries to open a pcm device for
2262 this channel but does not want to use it.
2263 (Cause a bug or mmap needs)
2264 It's good for Quake etc...
2265 - direct don't use plugins
2266 - block force block mode (rvplayer)
2267 - non-block force non-block mode
2268 - whole-frag write only whole fragments (optimization affecting
2269 playback only)
2270 - no-silence do not fill silence ahead to avoid clicks
Takashi Iwai10f69f92005-09-08 13:48:34 +02002271 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2272 instead of filled blocks
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273
2274 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2275 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2276 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2277
2278
Takashi Iwaib6a96912005-05-30 18:27:03 +02002279Early Buffer Allocation
2280=======================
2281
2282Some drivers (e.g. hdsp) require the large contiguous buffers, and
2283sometimes it's too late to find such spaces when the driver module is
2284actually loaded due to memory fragmentation. You can pre-allocate the
2285PCM buffers by loading snd-page-alloc module and write commands to its
2286proc file in prior, for example, in the early boot stage like
2287/etc/init.d/*.local scripts.
2288
2289Reading the proc file /proc/drivers/snd-page-alloc shows the current
2290usage of page allocation. In writing, you can send the following
2291commands to the snd-page-alloc driver:
2292
2293 - add VENDOR DEVICE MASK SIZE BUFFERS
2294
2295 VENDOR and DEVICE are PCI vendor and device IDs. They take
2296 integer numbers (0x prefix is needed for the hex).
2297 MASK is the PCI DMA mask. Pass 0 if not restricted.
2298 SIZE is the size of each buffer to allocate. You can pass
2299 k and m suffix for KB and MB. The max number is 16MB.
2300 BUFFERS is the number of buffers to allocate. It must be greater
2301 than 0. The max number is 4.
2302
2303 - erase
2304
2305 This will erase the all pre-allocated buffers which are not in
2306 use.
2307
2308
Takashi Iwai62430082005-09-05 17:12:29 +02002309Links and Addresses
2310===================
Linus Torvalds1da177e2005-04-16 15:20:36 -07002311
2312 ALSA project homepage
2313 http://www.alsa-project.org
2314
Takashi Iwai30bc4482008-12-09 08:23:45 +01002315 Kernel Bugzilla
2316 http://bugzilla.kernel.org/
Takashi Iwai62430082005-09-05 17:12:29 +02002317
2318 ALSA Developers ML
Rene Herman45051792007-03-21 12:05:06 +01002319 mailto:alsa-devel@alsa-project.org
Takashi Iwai30bc4482008-12-09 08:23:45 +01002320
2321 alsa-info.sh script
2322 http://www.alsa-project.org/alsa-info.sh