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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.
60 device_mode
61 - permission mask for dynamic sound device filesystem
62 - This is available only when DEVFS is enabled
63 - Default: 0666
64 - E.g.: device_mode=0660
65
66
67 Module snd-pcm-oss
68 ------------------
69
70 The PCM OSS emulation module.
71 This module takes options which change the mapping of devices.
72
73 dsp_map - PCM device number maps assigned to the 1st OSS device.
74 - Default: 0
75 adsp_map - PCM device number maps assigned to the 2st OSS device.
76 - Default: 1
77 nonblock_open
Takashi Iwai62430082005-09-05 17:12:29 +020078 - Don't block opening busy PCM devices. Default: 1
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
81 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
82 to PCM #0 of the card #0.
83 For changing the second or later card, specify the option with
84 commas, such like "dsp_map=0,1".
85
86 nonblock_open option is used to change the behavior of the PCM
87 regarding opening the device. When this option is non-zero,
88 opening a busy OSS PCM device won't be blocked but return
89 immediately with EAGAIN (just like O_NONBLOCK flag).
90
91 Module snd-rawmidi
92 ------------------
93
94 This module takes options which change the mapping of devices.
95 similar to those of the snd-pcm-oss module.
96
97 midi_map - MIDI device number maps assigned to the 1st OSS device.
98 - Default: 0
99 amidi_map - MIDI device number maps assigned to the 2st OSS device.
100 - Default: 1
101
102 Common parameters for top sound card modules
103 --------------------------------------------
104
105 Each of top level sound card module takes the following options.
106
107 index - index (slot #) of sound card
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100108 - Values: 0 through 31 or negative
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109 - If nonnegative, assign that index number
110 - if negative, interpret as a bitmask of permissible
111 indices; the first free permitted index is assigned
112 - Default: -1
113 id - card ID (identifier or name)
114 - Can be up to 15 characters long
115 - Default: the card type
116 - A directory by this name is created under /proc/asound/
117 containing information about the card
118 - This ID can be used instead of the index number in
119 identifying the card
120 enable - enable card
121 - Default: enabled, for PCI and ISA PnP cards
122
Rene Hermancf40a312006-03-28 12:38:20 +0200123 Module snd-adlib
124 ----------------
125
126 Module for AdLib FM cards.
127
128 port - port # for OPL chip
129
130 This module supports multiple cards. It does not support autoprobe, so
131 the port must be specified. For actual AdLib FM cards it will be 0x388.
132 Note that this card does not have PCM support and no mixer; only FM
133 synthesis.
134
135 Make sure you have "sbiload" from the alsa-tools package available and,
136 after loading the module, find out the assigned ALSA sequencer port
137 number through "sbiload -l". Example output:
138
139 Port Client name Port name
140 64:0 OPL2 FM synth OPL2 FM Port
141
142 Load the std.sb and drums.sb patches also supplied by sbiload:
143
144 sbiload -p 64:0 std.sb drums.sb
145
146 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
147 instead. To have the card produce sound, use aplaymidi from alsa-utils:
148
149 aplaymidi -p 64:0 foo.mid
150
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 Module snd-ad1816a
152 ------------------
153
154 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
155
156 port - port # for AD1816A chip (PnP setup)
157 mpu_port - port # for MPU-401 UART (PnP setup)
158 fm_port - port # for OPL3 (PnP setup)
159 irq - IRQ # for AD1816A chip (PnP setup)
160 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
161 dma1 - first DMA # for AD1816A chip (PnP setup)
162 dma2 - second DMA # for AD1816A chip (PnP setup)
Takashi Iwai506d4c62005-08-03 14:02:47 +0200163 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100165 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
167 Module snd-ad1848
168 -----------------
169
170 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
171
172 port - port # for AD1848 chip
173 irq - IRQ # for AD1848 chip
174 dma1 - DMA # for AD1848 chip (0,1,3)
175
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100176 This module supports multiple cards. It does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 thus main port must be specified!!! Other ports are optional.
178
Takashi Iwaia4efc232005-11-17 17:24:26 +0100179 The power-management is supported.
180
Clemens Ladisch84010e62005-09-02 07:57:59 +0200181 Module snd-ad1889
182 -----------------
183
184 Module for Analog Devices AD1889 chips.
185
186 ac97_quirk - AC'97 workaround for strange hardware
187 See the description of intel8x0 module for details.
188
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100189 This module supports multiple cards.
Clemens Ladisch84010e62005-09-02 07:57:59 +0200190
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191 Module snd-ali5451
192 ------------------
193
194 Module for ALi M5451 PCI chip.
195
196 pcm_channels - Number of hardware channels assigned for PCM
197 spdif - Support SPDIF I/O
198 - Default: disabled
199
Takashi Iwai8a3fb4d2005-10-20 17:10:49 +0200200 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201
202 The power-management is supported.
203
204 Module snd-als100
205 -----------------
206
207 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
208
209 port - port # for ALS100 (SB16) chip (PnP setup)
210 irq - IRQ # for ALS100 (SB16) chip (PnP setup)
211 dma8 - 8-bit DMA # for ALS100 (SB16) chip (PnP setup)
212 dma16 - 16-bit DMA # for ALS100 (SB16) chip (PnP setup)
213 mpu_port - port # for MPU-401 UART (PnP setup)
214 mpu_irq - IRQ # for MPU-401 (PnP setup)
215 fm_port - port # for OPL3 FM (PnP setup)
216
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100217 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218
Takashi Iwaia4efc232005-11-17 17:24:26 +0100219 The power-management is supported.
220
Ash Willisb3a70d52006-03-27 13:20:40 +0200221 Module snd-als300
222 -----------------
223
224 Module for Avance Logic ALS300 and ALS300+
225
226 This module supports multiple cards.
227
228 The power-management is supported.
229
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 Module snd-als4000
231 ------------------
232
233 Module for sound cards based on Avance Logic ALS4000 PCI chip.
234
235 joystick_port - port # for legacy joystick support.
236 0 = disabled (default), 1 = auto-detect
237
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100238 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239
Takashi Iwaia4efc232005-11-17 17:24:26 +0100240 The power-management is supported.
241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 Module snd-atiixp
243 -----------------
244
Takashi Iwai62430082005-09-05 17:12:29 +0200245 Module for ATI IXP 150/200/250/400 AC97 controllers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246
Takashi Iwai62430082005-09-05 17:12:29 +0200247 ac97_clock - AC'97 clock (default = 48000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +0200249 See "AC97 Quirk Option" section below.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
251
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200252 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
Takashi Iwai62430082005-09-05 17:12:29 +0200254 ATI IXP has two different methods to control SPDIF output. One is
255 over AC-link and another is over the "direct" SPDIF output. The
256 implementation depends on the motherboard, and you'll need to
257 choose the correct one via spdif_aclink module option.
258
Takashi Iwaia4efc232005-11-17 17:24:26 +0100259 The power-management is supported.
260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 Module snd-atiixp-modem
262 -----------------------
263
264 Module for ATI IXP 150/200/250 AC97 modem controllers.
265
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200266 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267
268 Note: The default index value of this module is -2, i.e. the first
269 slot is excluded.
270
Takashi Iwaia4efc232005-11-17 17:24:26 +0100271 The power-management is supported.
272
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273 Module snd-au8810, snd-au8820, snd-au8830
274 -----------------------------------------
275
276 Module for Aureal Vortex, Vortex2 and Advantage device.
277
278 pcifix - Control PCI workarounds
279 0 = Disable all workarounds
280 1 = Force the PCI latency of the Aureal card to 0xff
281 2 = Force the Extend PCI#2 Internal Master for Efficient
282 Handling of Dummy Requests on the VIA KT133 AGP Bridge
283 3 = Force both settings
284 255 = Autodetect what is required (default)
285
286 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
287 EQ, mpu401, gameport. A3D and wavetable support are still in development.
288 Development and reverse engineering work is being coordinated at
289 http://savannah.nongnu.org/projects/openvortex/
290 SPDIF output has a copy of the AC97 codec output, unless you use the
291 "spdif" pcm device, which allows raw data passthru.
292 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
293 Advantage.
294
Takashi Iwai62430082005-09-05 17:12:29 +0200295 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 control correctly. If you have problems regarding this, try
297 another ALSA compliant mixer (alsamixer works).
298
299 Module snd-azt2320
300 ------------------
301
302 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
303
304 port - port # for AZT2320 chip (PnP setup)
305 wss_port - port # for WSS (PnP setup)
306 mpu_port - port # for MPU-401 UART (PnP setup)
307 fm_port - FM port # for AZT2320 chip (PnP setup)
308 irq - IRQ # for AZT2320 (WSS) chip (PnP setup)
309 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
310 dma1 - 1st DMA # for AZT2320 (WSS) chip (PnP setup)
311 dma2 - 2nd DMA # for AZT2320 (WSS) chip (PnP setup)
312
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100313 This module supports multiple cards, PnP and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314
Takashi Iwaia4efc232005-11-17 17:24:26 +0100315 The power-management is supported.
316
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 Module snd-azt3328
318 ------------------
319
320 Module for sound cards based on Aztech AZF3328 PCI chip.
321
322 joystick - Enable joystick (default off)
323
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100324 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325
326 Module snd-bt87x
327 ----------------
328
329 Module for video cards based on Bt87x chips.
330
331 digital_rate - Override the default digital rate (Hz)
332 load_all - Load the driver even if the card model isn't known
333
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100334 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
336 Note: The default index value of this module is -2, i.e. the first
337 slot is excluded.
338
339 Module snd-ca0106
340 -----------------
341
342 Module for Creative Audigy LS and SB Live 24bit
343
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100344 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
346
347 Module snd-cmi8330
348 ------------------
349
350 Module for sound cards based on C-Media CMI8330 ISA chips.
351
352 wssport - port # for CMI8330 chip (WSS)
353 wssirq - IRQ # for CMI8330 chip (WSS)
354 wssdma - first DMA # for CMI8330 chip (WSS)
355 sbport - port # for CMI8330 chip (SB16)
356 sbirq - IRQ # for CMI8330 chip (SB16)
357 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
358 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
359
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100360 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
Takashi Iwaia4efc232005-11-17 17:24:26 +0100362 The power-management is supported.
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 Module snd-cmipci
365 -----------------
366
367 Module for C-Media CMI8338 and 8738 PCI sound cards.
368
Takashi Iwaicab5c4c2006-05-04 14:36:08 +0200369 mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
370 1 = integrated PCI port,
371 0 = disable (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 fm_port - 0x388 (default), 0 = disable (default)
Takashi Iwai62430082005-09-05 17:12:29 +0200373 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 (default = 1)
375 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
376
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100377 This module supports autoprobe and multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
Takashi Iwaia4efc232005-11-17 17:24:26 +0100379 The power-management is supported.
380
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 Module snd-cs4231
382 -----------------
383
384 Module for sound cards based on CS4231 ISA chips.
385
386 port - port # for CS4231 chip
387 mpu_port - port # for MPU-401 UART (optional), -1 = disable
388 irq - IRQ # for CS4231 chip
389 mpu_irq - IRQ # for MPU-401 UART
390 dma1 - first DMA # for CS4231 chip
391 dma2 - second DMA # for CS4231 chip
392
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100393 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 thus main port must be specified!!! Other ports are optional.
395
396 The power-management is supported.
397
398 Module snd-cs4232
399 -----------------
400
401 Module for sound cards based on CS4232/CS4232A ISA chips.
402
403 port - port # for CS4232 chip (PnP setup - 0x534)
404 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
405 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
406 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
407 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
408 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
409 dma1 - first DMA # for CS4232 chip (0,1,3)
410 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
411 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
412
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100413 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 thus main port must be specified!!! Other ports are optional.
415
416 The power-management is supported.
417
418 Module snd-cs4236
419 -----------------
420
421 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
422 CS4238B/CS4239 ISA chips.
423
424 port - port # for CS4236 chip (PnP setup - 0x534)
425 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
426 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
427 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
428 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
429 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
430 dma1 - first DMA # for CS4236 chip (0,1,3)
431 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
432 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
433
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100434 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 (if ISA PnP is not used) thus main port and control port must be
436 specified!!! Other ports are optional.
437
438 The power-management is supported.
439
440 Module snd-cs4281
441 -----------------
442
443 Module for Cirrus Logic CS4281 soundchip.
444
445 dual_codec - Secondary codec ID (0 = disable, default)
446
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100447 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448
449 The power-management is supported.
450
451 Module snd-cs46xx
452 -----------------
453
454 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
455 CS4624/CS4630/CS4280 PCI chips.
456
Takashi Iwai62430082005-09-05 17:12:29 +0200457 external_amp - Force to enable external amplifier.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 thinkpad - Force to enable Thinkpad's CLKRUN control.
459 mmap_valid - Support OSS mmap mode (default = 0).
460
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100461 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 Usually external amp and CLKRUN controls are detected automatically
463 from PCI sub vendor/device ids. If they don't work, give the options
464 above explicitly.
465
466 The power-management is supported.
467
Takashi Iwai3e873172005-11-17 10:15:37 +0100468 Module snd-cs5535audio
469 ----------------------
470
471 Module for multifunction CS5535 companion PCI device
472
Takashi Iwaic00bd742006-05-19 19:22:34 +0200473 The power-management is supported.
Takashi Iwai3e873172005-11-17 10:15:37 +0100474
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200475 Module snd-darla20
476 ------------------
477
478 Module for Echoaudio Darla20
479
480 This module supports multiple cards.
481 The driver requires the firmware loader support on kernel.
482
483 Module snd-darla24
484 ------------------
485
486 Module for Echoaudio Darla24
487
488 This module supports multiple cards.
489 The driver requires the firmware loader support on kernel.
490
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 Module snd-dt019x
492 -----------------
493
494 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
495 only)
496
497 port - Port # (PnP setup)
498 mpu_port - Port # for MPU-401 (PnP setup)
499 fm_port - Port # for FM OPL-3 (PnP setup)
500 irq - IRQ # (PnP setup)
501 mpu_irq - IRQ # for MPU-401 (PnP setup)
502 dma8 - DMA # (PnP setup)
503
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100504 This module supports multiple cards. This module is enabled only with
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505 ISA PnP support.
506
Takashi Iwaia4efc232005-11-17 17:24:26 +0100507 The power-management is supported.
508
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509 Module snd-dummy
510 ----------------
511
512 Module for the dummy sound card. This "card" doesn't do any output
513 or input, but you may use this module for any application which
514 requires a sound card (like RealPlayer).
515
Takashi Iwaia4efc232005-11-17 17:24:26 +0100516 The power-management is supported.
517
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200518 Module snd-echo3g
519 -----------------
520
521 Module for Echoaudio 3G cards (Gina3G/Layla3G)
522
523 This module supports multiple cards.
524 The driver requires the firmware loader support on kernel.
525
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526 Module snd-emu10k1
527 ------------------
528
529 Module for EMU10K1/EMU10k2 based PCI sound cards.
530 * Sound Blaster Live!
531 * Sound Blaster PCI 512
532 * Emu APS (partially supported)
533 * Sound Blaster Audigy
534
535 extin - bitmap of available external inputs for FX8010 (see bellow)
536 extout - bitmap of available external outputs for FX8010 (see bellow)
537 seq_ports - allocated sequencer ports (4 by default)
538 max_synth_voices - limit of voices used for wavetable (64 by default)
539 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
540 given in MB unit. Default value is 128.
541 enable_ir - enable IR
542
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100543 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
545 Input & Output configurations [extin/extout]
546 * Creative Card wo/Digital out [0x0003/0x1f03]
547 * Creative Card w/Digital out [0x0003/0x1f0f]
548 * Creative Card w/Digital CD in [0x000f/0x1f0f]
549 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
550 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
551 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
552 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
553 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
554 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
555 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
556 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
557 * Creative Card all ins and outs [0x3fff/0x7fff]
558
Takashi Iwaia4efc232005-11-17 17:24:26 +0100559 The power-management is supported.
560
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561 Module snd-emu10k1x
562 -------------------
563
564 Module for Creative Emu10k1X (SB Live Dell OEM version)
565
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100566 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567
568 Module snd-ens1370
569 ------------------
570
571 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
572 * SoundBlaster PCI 64
573 * SoundBlaster PCI 128
574
575 joystick - Enable joystick (default off)
576
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100577 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578
Takashi Iwaid6ec8942006-01-20 14:05:06 +0100579 The power-management is supported.
580
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 Module snd-ens1371
582 ------------------
583
584 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
585 * SoundBlaster PCI 64
586 * SoundBlaster PCI 128
587 * SoundBlaster Vibra PCI
588
589 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
590 0 = disable (default), 1 = auto-detect
591
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100592 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593
Takashi Iwaid6ec8942006-01-20 14:05:06 +0100594 The power-management is supported.
595
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 Module snd-es968
597 ----------------
598
599 Module for sound cards based on ESS ES968 chip (PnP only).
600
601 port - port # for ES968 (SB8) chip (PnP setup)
602 irq - IRQ # for ES968 (SB8) chip (PnP setup)
603 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
604
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100605 This module supports multiple cards, PnP and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606
Takashi Iwaia4efc232005-11-17 17:24:26 +0100607 The power-management is supported.
608
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 Module snd-es1688
610 -----------------
611
612 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
613
614 port - port # for ES-1688 chip (0x220,0x240,0x260)
615 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
616 irq - IRQ # for ES-1688 chip (5,7,9,10)
617 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
618 dma8 - DMA # for ES-1688 chip (0,1,3)
619
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100620 This module supports multiple cards and autoprobe (without MPU-401 port).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
622 Module snd-es18xx
623 -----------------
624
625 Module for ESS AudioDrive ES-18xx sound cards.
626
627 port - port # for ES-18xx chip (0x220,0x240,0x260)
628 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
629 fm_port - port # for FM (optional, not used)
630 irq - IRQ # for ES-18xx chip (5,7,9,10)
631 dma1 - first DMA # for ES-18xx chip (0,1,3)
632 dma2 - first DMA # for ES-18xx chip (0,1,3)
633 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
634
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100635 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
636 port if native ISA PnP routines are not used).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 When dma2 is equal with dma1, the driver works as half-duplex.
638
639 The power-management is supported.
640
641 Module snd-es1938
642 -----------------
643
644 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
645
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100646 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647
Takashi Iwaia4efc232005-11-17 17:24:26 +0100648 The power-management is supported.
649
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 Module snd-es1968
651 -----------------
652
653 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
654
655 total_bufsize - total buffer size in kB (1-4096kB)
656 pcm_substreams_p - playback channels (1-8, default=2)
657 pcm_substreams_c - capture channels (1-8, default=0)
658 clock - clock (0 = auto-detection)
659 use_pm - support the power-management (0 = off, 1 = on,
660 2 = auto (default))
661 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
662 joystick - enable joystick (default off)
663
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100664 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665
666 The power-management is supported.
667
668 Module snd-fm801
669 ----------------
670
671 Module for ForteMedia FM801 based PCI sound cards.
672
673 tea575x_tuner - Enable TEA575x tuner
674 - 1 = MediaForte 256-PCS
675 - 2 = MediaForte 256-PCPR
676 - 3 = MediaForte 64-PCR
677 - High 16-bits are video (radio) device number + 1
678 - example: 0x10002 (MediaForte 256-PCPR, device 1)
679
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100680 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681
Takashi Iwaia4efc232005-11-17 17:24:26 +0100682 The power-management is supported.
683
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200684 Module snd-gina20
685 -----------------
686
687 Module for Echoaudio Gina20
688
689 This module supports multiple cards.
690 The driver requires the firmware loader support on kernel.
691
692 Module snd-gina24
693 -----------------
694
695 Module for Echoaudio Gina24
696
697 This module supports multiple cards.
698 The driver requires the firmware loader support on kernel.
699
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 Module snd-gusclassic
701 ---------------------
702
703 Module for Gravis UltraSound Classic sound card.
704
705 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
706 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
707 dma1 - DMA # for GF1 chip (1,3,5,6,7)
708 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
709 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
710 voices - GF1 voices limit (14-32)
711 pcm_voices - reserved PCM voices
712
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100713 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714
715 Module snd-gusextreme
716 ---------------------
717
718 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
719
720 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
721 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
722 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
723 irq - IRQ # for ES-1688 chip (5,7,9,10)
724 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
725 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
726 dma8 - DMA # for ES-1688 chip (0,1,3)
727 dma1 - DMA # for GF1 chip (1,3,5,6,7)
728 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
729 voices - GF1 voices limit (14-32)
730 pcm_voices - reserved PCM voices
731
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100732 This module supports multiple cards and autoprobe (without MPU-401 port).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733
734 Module snd-gusmax
735 -----------------
736
737 Module for Gravis UltraSound MAX sound card.
738
739 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
740 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
741 dma1 - DMA # for GF1 chip (1,3,5,6,7)
742 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
743 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
744 voices - GF1 voices limit (14-32)
745 pcm_voices - reserved PCM voices
746
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100747 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748
749 Module snd-hda-intel
750 --------------------
751
Takashi Iwai9b878192006-05-17 11:26:39 +0200752 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
753 ATI SB450, SB600, RS600,
754 VIA VT8251/VT8237A,
755 SIS966, ULI M5461
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756
757 model - force the model name
Takashi Iwai62430082005-09-05 17:12:29 +0200758 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
Takashi Iwai27346162006-01-12 18:28:44 +0100759 single_cmd - Use single immediate commands to communicate with
760 codecs (for debugging only)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200762 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
764 Each codec may have a model table for different configurations.
765 If your machine isn't listed there, the default (usually minimal)
766 configuration is set up. You can pass "model=<name>" option to
767 specify a certain model in such a case. There are different
768 models depending on the codec chip.
769
770 Model name Description
771 ---------- -----------
772 ALC880
773 3stack 3-jack in back and a headphone out
774 3stack-digout 3-jack in back, a HP out and a SPDIF out
775 5stack 5-jack in back, 2-jack in front
776 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
Takashi Iwaib6482d42005-06-27 15:32:43 +0200777 6stack 6-jack in back, 2-jack in front
778 6stack-digout 6-jack with a SPDIF out
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 w810 3-jack
Takashi Iwaidfc0ff62005-05-12 14:31:49 +0200780 z71v 3-jack (HP shared SPDIF)
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200781 asus 3-jack (ASUS Mobo)
782 asus-w1v ASUS W1V
783 asus-dig ASUS with SPDIF out
784 asus-dig2 ASUS with SPDIF out (using GPIO2)
Takashi Iwaie9edcee2005-06-13 14:16:38 +0200785 uniwill 3-jack
786 F1734 2-jack
Takashi Iwaiae6b8132006-03-03 16:47:17 +0100787 lg LG laptop (m1 express dual)
Takashi Iwaid6815182006-03-23 16:06:23 +0100788 lg-lw LG LW20 laptop
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200789 tcl TCL S700
Takashi Iwai5a053d02006-07-25 14:51:15 +0200790 clevo Clevo laptops (m520G, m665n)
Takashi Iwaib6482d42005-06-27 15:32:43 +0200791 test for testing/debugging purpose, almost all controls can be
792 adjusted. Appearing only when compiled with
793 $CONFIG_SND_DEBUG=y
Takashi Iwaied345f82006-03-01 14:16:53 +0100794 auto auto-config reading BIOS (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795
Takashi Iwai21be3d12005-09-16 19:18:56 +0200796 ALC260
797 hp HP machines
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200798 hp-3013 HP machines (3013-variant)
Takashi Iwai21be3d12005-09-16 19:18:56 +0200799 fujitsu Fujitsu S7020
Takashi Iwaied345f82006-03-01 14:16:53 +0100800 acer Acer TravelMate
801 basic fixed pin assignment (old default model)
802 auto auto-config reading BIOS (default)
803
804 ALC262
805 fujitsu Fujitsu Laptop
Takashi Iwai6d177ba72006-07-25 14:51:15 +0200806 hp-bpc HP xw4400/6400/8400/9400 laptops
Takashi Iwai304dcaa2006-07-25 14:51:16 +0200807 benq Benq ED8
Takashi Iwaied345f82006-03-01 14:16:53 +0100808 basic fixed pin assignment w/o SPDIF
809 auto auto-config reading BIOS (default)
810
Takashi Iwai9c7f8522006-06-28 15:08:22 +0200811 ALC882/885
Takashi Iwaied345f82006-03-01 14:16:53 +0100812 3stack-dig 3-jack with SPDIF I/O
813 6stck-dig 6-jack digital with SPDIF I/O
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200814 arima Arima W820Di1
Takashi Iwaied345f82006-03-01 14:16:53 +0100815 auto auto-config reading BIOS (default)
816
Takashi Iwai9c7f8522006-06-28 15:08:22 +0200817 ALC883/888
818 3stack-dig 3-jack with SPDIF I/O
819 6stack-dig 6-jack digital with SPDIF I/O
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200820 3stack-6ch 3-jack 6-channel
821 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
822 6stack-dig-demo 6-jack digital for Intel demo board
Vladimir Avdoninbab282b2006-08-22 13:31:58 +0200823 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
Takashi Iwai9c7f8522006-06-28 15:08:22 +0200824 auto auto-config reading BIOS (default)
825
826 ALC861/660
Takashi Iwaied345f82006-03-01 14:16:53 +0100827 3stack 3-jack
828 3stack-dig 3-jack with SPDIF I/O
829 6stack-dig 6-jack with SPDIF I/O
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200830 3stack-660 3-jack (for ALC660)
Takashi Iwai22309c32006-08-09 16:57:28 +0200831 uniwill-m31 Uniwill M31 laptop
Takashi Iwaied345f82006-03-01 14:16:53 +0100832 auto auto-config reading BIOS (default)
Takashi Iwai21be3d12005-09-16 19:18:56 +0200833
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834 CMI9880
835 minimal 3-jack in back
836 min_fp 3-jack in back, 2-jack in front
837 full 6-jack in back, 2-jack in front
838 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
839 allout 5-jack in back, 2-jack in front, SPDIF out
Takashi Iwaie9edcee2005-06-13 14:16:38 +0200840 auto auto-config reading BIOS (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841
Takashi Iwai9230d212006-03-13 13:49:49 +0100842 AD1981
843 basic 3-jack (default)
844 hp HP nx6320
Takashi Iwai01686c5f2006-04-18 12:54:11 +0200845 thinkpad Lenovo Thinkpad T60/X60/Z60
Takashi Iwai9230d212006-03-13 13:49:49 +0100846
847 AD1986A
848 6stack 6-jack, separate surrounds (default)
849 3stack 3-stack, shared surrounds
850 laptop 2-channel only (FSC V2060, Samsung M50)
Takashi Iwai825aa9722006-03-17 10:50:49 +0100851 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
Takashi Iwai9230d212006-03-13 13:49:49 +0100852
853 AD1988
854 6stack 6-jack
855 6stack-dig ditto with SPDIF
856 3stack 3-jack
857 3stack-dig ditto with SPDIF
858 laptop 3-jack with hp-jack automute
859 laptop-dig ditto with SPDIF
Guillaume Munch99ccc562006-08-16 19:35:12 +0200860 auto auto-config reading BIOS (default)
Takashi Iwai9230d212006-03-13 13:49:49 +0100861
Guillaume Munch99ccc562006-08-16 19:35:12 +0200862 STAC7664/7661(?)
863 vaio Setup for VAIO FE550G/SZ110/AR11B
Takashi Iwaidb064e52006-03-16 16:04:58 +0100864
Takashi Iwai62430082005-09-05 17:12:29 +0200865 If the default configuration doesn't work and one of the above
866 matches with your device, report it together with the PCI
867 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
868 ML (see the section "Links and Addresses").
869
Takashi Iwaic74db862005-05-12 14:26:27 +0200870 Note 2: If you get click noises on output, try the module option
871 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
872 register value without FIFO size correction as the current
873 DMA pointer. position_fix=2 will make the driver to use
874 the position buffer instead of reading SD_LPIB register.
875 (Usually SD_LPLIB register is more accurate than the
876 position buffer.)
877
Takashi Iwai27346162006-01-12 18:28:44 +0100878 NB: If you get many "azx_get_response timeout" messages at
879 loading, it's likely a problem of interrupts (e.g. ACPI irq
880 routing). Try to boot with options like "pci=noacpi". Also, you
881 can try "single_cmd=1" module option. This will switch the
882 communication method between HDA controller and codecs to the
883 single immediate commands instead of CORB/RIRB. Basically, the
884 single command mode is provided only for BIOS, and you won't get
885 unsolicited events, too. But, at least, this works independently
886 from the irq. Remember this is a last resort, and should be
887 avoided as much as possible...
888
Takashi Iwaia4efc232005-11-17 17:24:26 +0100889 The power-management is supported.
890
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891 Module snd-hdsp
892 ---------------
893
894 Module for RME Hammerfall DSP audio interface(s)
895
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100896 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897
898 Note: The firmware data can be automatically loaded via hotplug
899 when CONFIG_FW_LOADER is set. Otherwise, you need to load
900 the firmware via hdsploader utility included in alsa-tools
901 package.
902 The firmware data is found in alsa-firmware package.
903
904 Note: snd-page-alloc module does the job which snd-hammerfall-mem
905 module did formerly. It will allocate the buffers in advance
906 when any HDSP cards are found. To make the buffer
907 allocation sure, load snd-page-alloc module in the early
Takashi Iwaib6a96912005-05-30 18:27:03 +0200908 stage of boot sequence. See "Early Buffer Allocation"
909 section.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
Takashi Iwai54704402005-06-03 11:27:00 +0200911 Module snd-hdspm
912 ----------------
913
914 Module for RME HDSP MADI board.
915
916 precise_ptr - Enable precise pointer, or disable.
917 line_outs_monitor - Send playback streams to analog outs by default.
918 enable_monitor - Enable Analog Out on Channel 63/64 by default.
919
920 See hdspm.txt for details.
921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922 Module snd-ice1712
923 ------------------
924
925 Module for Envy24 (ICE1712) based PCI sound cards.
926 * MidiMan M Audio Delta 1010
927 * MidiMan M Audio Delta 1010LT
928 * MidiMan M Audio Delta DiO 2496
929 * MidiMan M Audio Delta 66
930 * MidiMan M Audio Delta 44
931 * MidiMan M Audio Delta 410
932 * MidiMan M Audio Audiophile 2496
933 * TerraTec EWS 88MT
934 * TerraTec EWS 88D
935 * TerraTec EWX 24/96
936 * TerraTec DMX 6Fire
Takashi Iwaic9bce912005-05-24 13:41:03 +0200937 * TerraTec Phase 88
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938 * Hoontech SoundTrack DSP 24
939 * Hoontech SoundTrack DSP 24 Value
940 * Hoontech SoundTrack DSP 24 Media 7.1
Takashi Iwaic9bce912005-05-24 13:41:03 +0200941 * Event Electronics, EZ8
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942 * Digigram VX442
Takashi Iwaic9bce912005-05-24 13:41:03 +0200943 * Lionstracs, Mediastaton
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944
945 model - Use the given board model, one of the following:
946 delta1010, dio2496, delta66, delta44, audiophile, delta410,
947 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
Takashi Iwaic9bce912005-05-24 13:41:03 +0200948 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
949 phase88, mediastation
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950 omni - Omni I/O support for MidiMan M-Audio Delta44/66
951 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transciever)
952 in msec resolution, default value is 500 (0.5 sec)
953
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100954 This module supports multiple cards and autoprobe. Note: The consumer part
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 is not used with all Envy24 based cards (for example in the MidiMan Delta
956 serie).
957
Takashi Iwaic9bce912005-05-24 13:41:03 +0200958 Note: The supported board is detected by reading EEPROM or PCI
959 SSID (if EEPROM isn't available). You can override the
960 model by passing "model" module option in case that the
961 driver isn't configured properly or you want to try another
962 type for testing.
963
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964 Module snd-ice1724
965 ------------------
966
Takashi Iwaic9bce912005-05-24 13:41:03 +0200967 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +0100968 * MidiMan M Audio Revolution 5.1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969 * MidiMan M Audio Revolution 7.1
970 * AMP Ltd AUDIO2000
Takashi Iwaic9bce912005-05-24 13:41:03 +0200971 * TerraTec Aureon 5.1 Sky
972 * TerraTec Aureon 7.1 Space
973 * TerraTec Aureon 7.1 Universe
974 * TerraTec Phase 22
975 * TerraTec Phase 28
976 * AudioTrak Prodigy 7.1
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +0100977 * AudioTrak Prodigy 7.1LT
Takashi Iwaic9bce912005-05-24 13:41:03 +0200978 * AudioTrak Prodigy 192
979 * Pontis MS300
980 * Albatron K8X800 Pro II
981 * Chaintech ZNF3-150
982 * Chaintech ZNF3-250
983 * Chaintech 9CJS
Takashi Iwai8cfbbac2005-05-27 12:10:40 +0200984 * Chaintech AV-710
Takashi Iwaic9bce912005-05-24 13:41:03 +0200985 * Shuttle SN25P
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986
987 model - Use the given board model, one of the following:
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +0100988 revo51, revo71, amp2000, prodigy71, prodigy71lt,
989 prodigy192, aureon51, aureon71, universe,
990 k8x800, phase22, phase28, ms300, av710
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100992 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993
Takashi Iwaic9bce912005-05-24 13:41:03 +0200994 Note: The supported board is detected by reading EEPROM or PCI
995 SSID (if EEPROM isn't available). You can override the
996 model by passing "model" module option in case that the
997 driver isn't configured properly or you want to try another
998 type for testing.
999
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001000 Module snd-indigo
1001 -----------------
1002
1003 Module for Echoaudio Indigo
1004
1005 This module supports multiple cards.
1006 The driver requires the firmware loader support on kernel.
1007
1008 Module snd-indigodj
1009 -------------------
1010
1011 Module for Echoaudio Indigo DJ
1012
1013 This module supports multiple cards.
1014 The driver requires the firmware loader support on kernel.
1015
1016 Module snd-indigoio
1017 -------------------
1018
1019 Module for Echoaudio Indigo IO
1020
1021 This module supports multiple cards.
1022 The driver requires the firmware loader support on kernel.
1023
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024 Module snd-intel8x0
1025 -------------------
1026
1027 Module for AC'97 motherboards from Intel and compatibles.
1028 * Intel i810/810E, i815, i820, i830, i84x, MX440
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001029 ICH5, ICH6, ICH7, ESB2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030 * SiS 7012 (SiS 735)
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001031 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1032 CK8, CK8S, MCP501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033 * AMD AMD768, AMD8111
1034 * ALi m5455
1035
1036 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1037 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +02001038 See "AC97 Quirk Option" section below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 buggy_irq - Enable workaround for buggy interrupts on some
Takashi Iwaia06147d2005-09-08 19:54:17 +02001040 motherboards (default yes on nForce chips,
1041 otherwise off)
1042 buggy_semaphore - Enable workaround for hardwares with buggy
1043 semaphores (e.g. on some ASUS laptops)
1044 (default off)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001046 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047
1048 Note: the latest driver supports auto-detection of chip clock.
1049 if you still encounter too fast playback, specify the clock
1050 explicitly via the module option "ac97_clock=41194".
1051
1052 Joystick/MIDI ports are not supported by this driver. If your
1053 motherboard has these devices, use the ns558 or snd-mpu401
1054 modules, respectively.
1055
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056 The power-management is supported.
1057
1058 Module snd-intel8x0m
1059 --------------------
1060
1061 Module for Intel ICH (i8x0) chipset MC97 modems.
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001062 * Intel i810/810E, i815, i820, i830, i84x, MX440
1063 ICH5, ICH6, ICH7
1064 * SiS 7013 (SiS 735)
1065 * NVidia NForce, NForce2, NForce2s, NForce3
1066 * AMD AMD8111
1067 * ALi m5455
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068
1069 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1070
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001071 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072
1073 Note: The default index value of this module is -2, i.e. the first
1074 slot is excluded.
1075
Takashi Iwaia4efc232005-11-17 17:24:26 +01001076 The power-management is supported.
1077
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078 Module snd-interwave
1079 --------------------
1080
1081 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1082 and other sound cards based on AMD InterWave (tm) chip.
1083
1084 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1085 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1086 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1087 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1088 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1089 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1090 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1091 effect - 1 = InterWave effects enable (default 0);
1092 requires 8 voices
1093
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001094 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
1096 Module snd-interwave-stb
1097 ------------------------
1098
1099 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1100 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1101 circuit for extended control of bass, treble and master volume.
1102
1103 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1104 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1105 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1106 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1107 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1108 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1109 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1110 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1111 effect - 1 = InterWave effects enable (default 0);
1112 requires 8 voices
1113
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001114 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115
1116 Module snd-korg1212
1117 -------------------
1118
1119 Module for Korg 1212 IO PCI card
1120
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001121 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001123 Module snd-layla20
1124 ------------------
1125
1126 Module for Echoaudio Layla20
1127
1128 This module supports multiple cards.
1129 The driver requires the firmware loader support on kernel.
1130
1131 Module snd-layla24
1132 ------------------
1133
1134 Module for Echoaudio Layla24
1135
1136 This module supports multiple cards.
1137 The driver requires the firmware loader support on kernel.
1138
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139 Module snd-maestro3
1140 -------------------
1141
1142 Module for Allegro/Maestro3 chips
1143
1144 external_amp - enable external amp (enabled by default)
1145 amp_gpio - GPIO pin number for external amp (0-15) or
1146 -1 for default pin (8 for allegro, 1 for
1147 others)
1148
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001149 This module supports autoprobe and multiple chips.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150
1151 Note: the binding of amplifier is dependent on hardware.
1152 If there is no sound even though all channels are unmuted, try to
1153 specify other gpio connection via amp_gpio option.
1154 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1155 option.
1156
1157 The power-management is supported.
1158
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001159 Module snd-mia
1160 ---------------
1161
1162 Module for Echoaudio Mia
1163
1164 This module supports multiple cards.
1165 The driver requires the firmware loader support on kernel.
1166
Martin Langer1841f6132006-03-27 12:41:01 +02001167 Module snd-miro
1168 ---------------
1169
1170 Module for Miro soundcards: miroSOUND PCM 1 pro,
1171 miroSOUND PCM 12,
1172 miroSOUND PCM 20 Radio.
1173
1174 port - Port # (0x530,0x604,0xe80,0xf40)
1175 irq - IRQ # (5,7,9,10,11)
1176 dma1 - 1st dma # (0,1,3)
1177 dma2 - 2nd dma # (0,1)
1178 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1179 mpu_irq - MPU-401 irq # (5,7,9,10)
1180 fm_port - FM Port # (0x388)
1181 wss - enable WSS mode
1182 ide - enable onboard ide support
1183
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184 Module snd-mixart
1185 -----------------
1186
1187 Module for Digigram miXart8 sound cards.
1188
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001189 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190 Note: One miXart8 board will be represented as 4 alsa cards.
1191 See MIXART.txt for details.
1192
1193 When the driver is compiled as a module and the hotplug firmware
1194 is supported, the firmware data is loaded via hotplug automatically.
1195 Install the necessary firmware files in alsa-firmware package.
1196 When no hotplug fw loader is available, you need to load the
1197 firmware via mixartloader utility in alsa-tools package.
1198
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001199 Module snd-mona
1200 ---------------
1201
1202 Module for Echoaudio Mona
1203
1204 This module supports multiple cards.
1205 The driver requires the firmware loader support on kernel.
1206
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207 Module snd-mpu401
1208 -----------------
1209
1210 Module for MPU-401 UART devices.
1211
1212 port - port number or -1 (disable)
1213 irq - IRQ number or -1 (disable)
1214 pnp - PnP detection - 0 = disable, 1 = enable (default)
1215
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001216 This module supports multiple devices and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217
1218 Module snd-mtpav
1219 ----------------
1220
1221 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1222 port).
1223
1224 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1225 irq - IRQ # for MTPAV (7,5, default=7)
1226 hwports - number of supported hardware ports, default=8.
1227
1228 Module supports only 1 card. This module has no enable option.
1229
Matthias Koenig68ab8012006-07-27 16:59:23 +02001230 Module snd-mts64
1231 ----------------
1232
1233 Module for Ego Systems (ESI) Miditerminal 4140
1234
1235 This module supports multiple devices.
1236 Requires parport (CONFIG_PARPORT).
1237
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238 Module snd-nm256
1239 ----------------
1240
1241 Module for NeoMagic NM256AV/ZX chips
1242
1243 playback_bufsize - max playback frame size in kB (4-128kB)
1244 capture_bufsize - max capture frame size in kB (4-128kB)
1245 force_ac97 - 0 or 1 (disabled by default)
1246 buffer_top - specify buffer top address
1247 use_cache - 0 or 1 (disabled by default)
1248 vaio_hack - alias buffer_top=0x25a800
1249 reset_workaround - enable AC97 RESET workaround for some laptops
Takashi Iwaid1f38cf2005-10-19 16:04:27 +02001250 reset_workaround2 - enable extended AC97 RESET workaround for some
1251 other laptops
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252
Takashi Iwai8a3fb4d2005-10-20 17:10:49 +02001253 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254
1255 The power-management is supported.
1256
1257 Note: on some notebooks the buffer address cannot be detected
1258 automatically, or causes hang-up during initialization.
1259 In such a case, specify the buffer top address explicity via
1260 buffer_top option.
1261 For example,
1262 Sony F250: buffer_top=0x25a800
1263 Sony F270: buffer_top=0x272800
1264 The driver supports only ac97 codec. It's possible to force
1265 to initialize/use ac97 although it's not detected. In such a
1266 case, use force_ac97=1 option - but *NO* guarantee whether it
1267 works!
1268
1269 Note: The NM256 chip can be linked internally with non-AC97
1270 codecs. This driver supports only the AC97 codec, and won't work
1271 with machines with other (most likely CS423x or OPL3SAx) chips,
1272 even though the device is detected in lspci. In such a case, try
1273 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
Takashi Iwai62430082005-09-05 17:12:29 +02001274 but some doesn't have ISA PnP. You'll need to specify isapnp=0
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 and proper hardware parameters in the case without ISA PnP.
1276
1277 Note: some laptops need a workaround for AC97 RESET. For the
1278 known hardware like Dell Latitude LS and Sony PCG-F305, this
1279 workaround is enabled automatically. For other laptops with a
1280 hard freeze, you can try reset_workaround=1 option.
1281
Takashi Iwaid1f38cf2005-10-19 16:04:27 +02001282 Note: Dell Latitude CSx laptops have another problem regarding
1283 AC97 RESET. On these laptops, reset_workaround2 option is
1284 turned on as default. This option is worth to try if the
1285 previous reset_workaround option doesn't help.
1286
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287 Note: This driver is really crappy. It's a porting from the
1288 OSS driver, which is a result of black-magic reverse engineering.
1289 The detection of codec will fail if the driver is loaded *after*
1290 X-server as described above. You might be able to force to load
1291 the module, but it may result in hang-up. Hence, make sure that
1292 you load this module *before* X if you encounter this kind of
1293 problem.
1294
1295 Module snd-opl3sa2
1296 ------------------
1297
1298 Module for Yamaha OPL3-SA2/SA3 sound cards.
1299
1300 port - control port # for OPL3-SA chip (0x370)
1301 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1302 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1303 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1304 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1305 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1306 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1307 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1308 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1309
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001310 This module supports multiple cards and ISA PnP. It does not support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1312
1313 The power-management is supported.
1314
1315 Module snd-opti92x-ad1848
1316 -------------------------
1317
1318 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1319 Module works with OAK Mozart cards as well.
1320
1321 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1322 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1323 fm_port - port # for OPL3 device (0x388)
1324 irq - IRQ # for WSS chip (5,7,9,10,11)
1325 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1326 dma1 - first DMA # for WSS chip (0,1,3)
1327
1328 This module supports only one card, autoprobe and PnP.
1329
1330 Module snd-opti92x-cs4231
1331 -------------------------
1332
1333 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1334
1335 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1336 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1337 fm_port - port # for OPL3 device (0x388)
1338 irq - IRQ # for WSS chip (5,7,9,10,11)
1339 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1340 dma1 - first DMA # for WSS chip (0,1,3)
1341 dma2 - second DMA # for WSS chip (0,1,3)
1342
1343 This module supports only one card, autoprobe and PnP.
1344
1345 Module snd-opti93x
1346 ------------------
1347
1348 Module for sound cards based on OPTi 82c93x chips.
1349
1350 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1351 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1352 fm_port - port # for OPL3 device (0x388)
1353 irq - IRQ # for WSS chip (5,7,9,10,11)
1354 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1355 dma1 - first DMA # for WSS chip (0,1,3)
1356 dma2 - second DMA # for WSS chip (0,1,3)
1357
1358 This module supports only one card, autoprobe and PnP.
1359
Markus Bollingere12229b2005-12-06 13:55:26 +01001360 Module snd-pcxhr
1361 ----------------
1362
1363 Module for Digigram PCXHR boards
1364
1365 This module supports multiple cards.
1366
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367 Module snd-powermac (on ppc only)
1368 ---------------------------------
1369
1370 Module for PowerMac, iMac and iBook on-board soundchips
1371
1372 enable_beep - enable beep using PCM (enabled as default)
1373
1374 Module supports autoprobe a chip.
1375
1376 Note: the driver may have problems regarding endianess.
1377
1378 The power-management is supported.
1379
Takashi Iwai2c484df2005-06-30 18:54:04 +02001380 Module snd-pxa2xx-ac97 (on arm only)
1381 ------------------------------------
1382
1383 Module for AC97 driver for the Intel PXA2xx chip
1384
1385 For ARM architecture only.
1386
Takashi Iwaia4efc232005-11-17 17:24:26 +01001387 The power-management is supported.
1388
Peter Gruber109a9632006-03-27 13:10:28 +02001389 Module snd-riptide
1390 ------------------
1391
1392 Module for Conexant Riptide chip
1393
1394 joystick_port - Joystick port # (default: 0x200)
1395 mpu_port - MPU401 port # (default: 0x330)
1396 opl3_port - OPL3 port # (default: 0x388)
1397
1398 This module supports multiple cards.
1399 The driver requires the firmware loader support on kernel.
1400 You need to install the firmware file "riptide.hex" to the standard
1401 firmware path (e.g. /lib/firmware).
1402
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403 Module snd-rme32
1404 ----------------
1405
1406 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1407 Prodif96 and Prodif Gold) sound cards.
1408
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001409 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410
1411 Module snd-rme96
1412 ----------------
1413
1414 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1415
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001416 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417
1418 Module snd-rme9652
1419 ------------------
1420
1421 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1422
1423 precise_ptr - Enable precise pointer (doesn't work reliably).
1424 (default = 0)
1425
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001426 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427
1428 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1429 module did formerly. It will allocate the buffers in advance
1430 when any RME9652 cards are found. To make the buffer
1431 allocation sure, load snd-page-alloc module in the early
Takashi Iwaib6a96912005-05-30 18:27:03 +02001432 stage of boot sequence. See "Early Buffer Allocation"
1433 section.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434
1435 Module snd-sa11xx-uda1341 (on arm only)
1436 ---------------------------------------
1437
1438 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1439
1440 Module supports only one card.
1441 Module has no enable and index options.
1442
Takashi Iwaia4efc232005-11-17 17:24:26 +01001443 The power-management is supported.
1444
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 Module snd-sb8
1446 --------------
1447
1448 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1449 SoundBlaster 2.0,
1450 SoundBlaster Pro
1451
1452 port - port # for SB DSP chip (0x220,0x240,0x260)
1453 irq - IRQ # for SB DSP chip (5,7,9,10)
1454 dma8 - DMA # for SB DSP chip (1,3)
1455
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001456 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457
Takashi Iwaia4efc232005-11-17 17:24:26 +01001458 The power-management is supported.
1459
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 Module snd-sb16 and snd-sbawe
1461 -----------------------------
1462
1463 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1464 SoundBlaster AWE 32 (PnP),
1465 SoundBlaster AWE 64 PnP
1466
1467 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1468 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1469 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1470 (snd-sbawe module only)
1471 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1472 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1473 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1474 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1475 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1476 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1477
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001478 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479
1480 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1481 disable 16bit DMA with dma16 = -1 module parameter.
1482 Also, all Sound Blaster 16 type cards can operate in 16-bit
1483 half duplex mode through 8-bit DMA channel by disabling their
1484 16-bit DMA channel.
1485
Takashi Iwaia4efc232005-11-17 17:24:26 +01001486 The power-management is supported.
1487
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488 Module snd-sgalaxy
1489 ------------------
1490
1491 Module for Aztech Sound Galaxy sound card.
1492
1493 sbport - Port # for SB16 interface (0x220,0x240)
1494 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1495 irq - IRQ # (7,9,10,11)
1496 dma1 - DMA #
1497
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001498 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499
Takashi Iwaia4efc232005-11-17 17:24:26 +01001500 The power-management is supported.
1501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 Module snd-sscape
1503 -----------------
1504
1505 Module for ENSONIQ SoundScape PnP cards.
1506
1507 port - Port # (PnP setup)
1508 irq - IRQ # (PnP setup)
1509 mpu_irq - MPU-401 IRQ # (PnP setup)
1510 dma - DMA # (PnP setup)
1511
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001512 This module supports multiple cards. ISA PnP must be enabled.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513 You need sscape_ctl tool in alsa-tools package for loading
1514 the microcode.
1515
1516 Module snd-sun-amd7930 (on sparc only)
1517 --------------------------------------
1518
1519 Module for AMD7930 sound chips found on Sparcs.
1520
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001521 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522
1523 Module snd-sun-cs4231 (on sparc only)
1524 -------------------------------------
1525
1526 Module for CS4231 sound chips found on Sparcs.
1527
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001528 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529
Takashi Iwai1bd9deb2005-06-30 18:26:20 +02001530 Module snd-sun-dbri (on sparc only)
1531 -----------------------------------
1532
1533 Module for DBRI sound chips found on Sparcs.
1534
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001535 This module supports multiple cards.
Takashi Iwai1bd9deb2005-06-30 18:26:20 +02001536
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537 Module snd-wavefront
1538 --------------------
1539
1540 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1541
1542 cs4232_pcm_port - Port # for CS4232 PCM interface.
1543 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1544 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1545 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1546 use_cs4232_midi - Use CS4232 MPU-401 interface
1547 (inaccessibly located inside your computer)
1548 ics2115_port - Port # for ICS2115
1549 ics2115_irq - IRQ # for ICS2115
1550 fm_port - FM OPL-3 Port #
1551 dma1 - DMA1 # for CS4232 PCM interface.
1552 dma2 - DMA2 # for CS4232 PCM interface.
1553 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1554
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001555 This module supports multiple cards and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556
1557 Module snd-sonicvibes
1558 ---------------------
1559
1560 Module for S3 SonicVibes PCI sound cards.
1561 * PINE Schubert 32 PCI
1562
1563 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1564 - SoundCard must have onboard SRAM for this.
1565 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1566
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001567 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568
1569 Module snd-serial-u16550
1570 ------------------------
1571
1572 Module for UART16550A serial MIDI ports.
1573
1574 port - port # for UART16550A chip
1575 irq - IRQ # for UART16550A chip, -1 = poll mode
1576 speed - speed in bauds (9600,19200,38400,57600,115200)
1577 38400 = default
1578 base - base for divisor in bauds (57600,115200,230400,460800)
1579 115200 = default
1580 outs - number of MIDI ports in a serial port (1-4)
1581 1 = default
1582 adaptor - Type of adaptor.
1583 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1584 3 = MS-124W M/B, 4 = Generic
1585
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001586 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587 thus the main port must be specified!!! Other options are optional.
1588
1589 Module snd-trident
1590 ------------------
1591
1592 Module for Trident 4DWave DX/NX sound cards.
1593 * Best Union Miss Melody 4DWave PCI
1594 * HIS 4DWave PCI
1595 * Warpspeed ONSpeed 4DWave PCI
1596 * AzTech PCI 64-Q3D
1597 * Addonics SV 750
1598 * CHIC True Sound 4Dwave
1599 * Shark Predator4D-PCI
1600 * Jaton SonicWave 4D
1601
1602 pcm_channels - max channels (voices) reserved for PCM
1603 wavetable_size - max wavetable size in kB (4-?kb)
1604
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001605 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606
1607 The power-management is supported.
1608
1609 Module snd-usb-audio
1610 --------------------
1611
1612 Module for USB audio and USB MIDI devices.
1613
1614 vid - Vendor ID for the device (optional)
1615 pid - Product ID for the device (optional)
Thibault LE MEURe3113342006-03-14 11:44:53 +01001616 device_setup - Device specific magic number (optional)
1617 - Influence depends on the device
1618 - Default: 0x0000
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001620 This module supports multiple devices, autoprobe and hotplugging.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621
1622 Module snd-usb-usx2y
1623 --------------------
1624
1625 Module for Tascam USB US-122, US-224 and US-428 devices.
1626
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001627 This module supports multiple devices, autoprobe and hotplugging.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001628
1629 Note: you need to load the firmware via usx2yloader utility included
1630 in alsa-tools and alsa-firmware packages.
1631
1632 Module snd-via82xx
1633 ------------------
1634
1635 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001636 8233A, 8233C, 8235, 8237 (south) bridge.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001637
1638 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1639 [VIA686A/686B only]
1640 joystick - Enable joystick (default off) [VIA686A/686B only]
1641 ac97_clock - AC'97 codec clock base (default 48000Hz)
1642 dxs_support - support DXS channels,
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001643 0 = auto (default), 1 = enable, 2 = disable,
1644 3 = 48k only, 4 = no VRA, 5 = enable any sample
1645 rate and different sample rates on different
1646 channels
1647 [VIA8233/C, 8235, 8237 only]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001648 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +02001649 See "AC97 Quirk Option" section below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001650
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001651 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001652
1653 Note: on some SMP motherboards like MSI 694D the interrupts might
1654 not be generated properly. In such a case, please try to
1655 set the SMP (or MPS) version on BIOS to 1.1 instead of
1656 default value 1.4. Then the interrupt number will be
1657 assigned under 15. You might also upgrade your BIOS.
1658
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001659 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660 channels as the first PCM. On these channels, up to 4
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001661 streams can be played at the same time, and the controller
1662 can perform sample rate conversion with separate rates for
1663 each channel.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001664 As default (dxs_support = 0), 48k fixed rate is chosen
1665 except for the known devices since the output is often
1666 noisy except for 48k on some mother boards due to the
1667 bug of BIOS.
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001668 Please try once dxs_support=5 and if it works on other
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1670 know the PCI subsystem vendor/device id's (output of
1671 "lspci -nv").
Takashi Iwaicdc27f32005-05-27 11:11:02 +02001672 If dxs_support=5 does not work, try dxs_support=4; if it
1673 doesn't work too, try dxs_support=1. (dxs_support=1 is
Takashi Iwai62430082005-09-05 17:12:29 +02001674 usually for old motherboards. The correct implemented
Takashi Iwaicdc27f32005-05-27 11:11:02 +02001675 board should work with 4 or 5.) If it still doesn't
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676 work and the default setting is ok, dxs_support=3 is the
1677 right choice. If the default setting doesn't work at all,
1678 try dxs_support=2 to disable the DXS channels.
1679 In any cases, please let us know the result and the
Takashi Iwai62430082005-09-05 17:12:29 +02001680 subsystem vendor/device ids. See "Links and Addresses"
1681 below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682
1683 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
Takashi Iwai62430082005-09-05 17:12:29 +02001684 additionally. The mpu_port option is for VIA686 chips only.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685
Takashi Iwaia4efc232005-11-17 17:24:26 +01001686 The power-management is supported.
1687
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688 Module snd-via82xx-modem
1689 ------------------------
1690
1691 Module for VIA82xx AC97 modem
1692
1693 ac97_clock - AC'97 codec clock base (default 48000Hz)
1694
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001695 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001696
1697 Note: The default index value of this module is -2, i.e. the first
1698 slot is excluded.
1699
Takashi Iwaia4efc232005-11-17 17:24:26 +01001700 The power-management is supported.
1701
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702 Module snd-virmidi
1703 ------------------
1704
1705 Module for virtual rawmidi devices.
1706 This module creates virtual rawmidi devices which communicate
1707 to the corresponding ALSA sequencer ports.
1708
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001709 midi_devs - MIDI devices # (1-4, default=4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001711 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712
1713 Module snd-vx222
1714 ----------------
1715
1716 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1717
1718 mic - Enable Microphone on V222 Mic (NYI)
1719 ibl - Capture IBL size. (default = 0, minimum size)
1720
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001721 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722
1723 When the driver is compiled as a module and the hotplug firmware
1724 is supported, the firmware data is loaded via hotplug automatically.
1725 Install the necessary firmware files in alsa-firmware package.
1726 When no hotplug fw loader is available, you need to load the
1727 firmware via vxloader utility in alsa-tools package. To invoke
1728 vxloader automatically, add the following to /etc/modprobe.conf
1729
1730 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1731
1732 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1733 /etc/modules.conf, instead.)
1734 IBL size defines the interrupts period for PCM. The smaller size
1735 gives smaller latency but leads to more CPU consumption, too.
1736 The size is usually aligned to 126. As default (=0), the smallest
1737 size is chosen. The possible IBL values can be found in
1738 /proc/asound/cardX/vx-status proc file.
1739
Takashi Iwaia4efc232005-11-17 17:24:26 +01001740 The power-management is supported.
1741
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742 Module snd-vxpocket
1743 -------------------
1744
Takashi Iwai6d00a312005-06-30 13:40:51 +02001745 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001746
1747 ibl - Capture IBL size. (default = 0, minimum size)
1748
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001749 This module supports multiple cards. The module is compiled only when
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 PCMCIA is supported on kernel.
1751
Takashi Iwai62430082005-09-05 17:12:29 +02001752 With the older 2.6.x kernel, to activate the driver via the card
1753 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1754 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1755 longer require a config file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001756
1757 When the driver is compiled as a module and the hotplug firmware
1758 is supported, the firmware data is loaded via hotplug automatically.
1759 Install the necessary firmware files in alsa-firmware package.
1760 When no hotplug fw loader is available, you need to load the
1761 firmware via vxloader utility in alsa-tools package.
1762
1763 About capture IBL, see the description of snd-vx222 module.
1764
Takashi Iwaied7cbe32006-05-11 11:30:10 +02001765 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
Takashi Iwai62430082005-09-05 17:12:29 +02001766 ALSA 1.0.10.
1767
Takashi Iwaia4efc232005-11-17 17:24:26 +01001768 The power-management is supported.
1769
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 Module snd-ymfpci
1771 -----------------
1772
1773 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1774
1775 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1776 1 (auto-detect for YMF744/754 only)
1777 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1778 1 (auto-detect for YMF744/754 only)
1779 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1780 1 (auto-detect)
1781 rear_switch - enable shared rear/line-in switch (bool)
1782
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001783 This module supports autoprobe and multiple chips.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784
1785 The power-management is supported.
1786
1787 Module snd-pdaudiocf
1788 --------------------
1789
1790 Module for Sound Core PDAudioCF sound card.
1791
Takashi Iwaia4efc232005-11-17 17:24:26 +01001792 The power-management is supported.
1793
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794
Takashi Iwai62430082005-09-05 17:12:29 +02001795AC97 Quirk Option
1796=================
1797
1798The ac97_quirk option is used to enable/override the workaround for
1799specific devices on drivers for on-board AC'97 controllers like
1800snd-intel8x0. Some hardware have swapped output pins between Master
1801and Headphone, or Surround (thanks to confusion of AC'97
1802specifications from version to version :-)
1803
1804The driver provides the auto-detection of known problematic devices,
1805but some might be unknown or wrongly detected. In such a case, pass
1806the proper value with this option.
1807
1808The following strings are accepted:
1809 - default Don't override the default setting
Takashi Iwai10e4097f2005-11-17 11:04:55 +01001810 - none Disable the quirk
Takashi Iwai62430082005-09-05 17:12:29 +02001811 - hp_only Bind Master and Headphone controls as a single control
1812 - swap_hp Swap headphone and master controls
1813 - swap_surround Swap master and surround controls
1814 - ad_sharing For AD1985, turn on OMS bit and use headphone
1815 - alc_jack For ALC65x, turn on the jack sense mode
1816 - inv_eapd Inverted EAPD implementation
1817 - mute_led Bind EAPD bit for turning on/off mute LED
1818
1819For backward compatibility, the corresponding integer value -1, 0,
1820... are accepted, too.
1821
1822For example, if "Master" volume control has no effect on your device
1823but only "Headphone" does, pass ac97_quirk=hp_only module option.
1824
1825
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826Configuring Non-ISAPNP Cards
1827============================
1828
1829When the kernel is configured with ISA-PnP support, the modules
1830supporting the isapnp cards will have module options "isapnp".
1831If this option is set, *only* the ISA-PnP devices will be probed.
1832For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1833together with the proper i/o and irq configuration.
1834
1835When the kernel is configured without ISA-PnP support, isapnp option
1836will be not built in.
1837
1838
1839Module Autoloading Support
1840==========================
1841
1842The ALSA drivers can be loaded automatically on demand by defining
1843module aliases. The string 'snd-card-%1' is requested for ALSA native
1844devices where %i is sound card number from zero to seven.
1845
1846To auto-load an ALSA driver for OSS services, define the string
1847'sound-slot-%i' where %i means the slot number for OSS, which
1848corresponds to the card index of ALSA. Usually, define this
Tobias Klauserd533f672005-09-10 00:26:46 -07001849as the same card module.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850
1851An example configuration for a single emu10k1 card is like below:
1852----- /etc/modprobe.conf
1853alias snd-card-0 snd-emu10k1
1854alias sound-slot-0 snd-emu10k1
1855----- /etc/modprobe.conf
1856
1857The available number of auto-loaded sound cards depends on the module
1858option "cards_limit" of snd module. As default it's set to 1.
1859To enable the auto-loading of multiple cards, specify the number of
1860sound cards in that option.
1861
1862When multiple cards are available, it'd better to specify the index
1863number for each card via module option, too, so that the order of
1864cards is kept consistent.
1865
1866An example configuration for two sound cards is like below:
1867
1868----- /etc/modprobe.conf
1869# ALSA portion
1870options snd cards_limit=2
1871alias snd-card-0 snd-interwave
1872alias snd-card-1 snd-ens1371
1873options snd-interwave index=0
1874options snd-ens1371 index=1
1875# OSS/Free portion
1876alias sound-slot-0 snd-interwave
1877alias sound-slot-1 snd-ens1371
1878----- /etc/moprobe.conf
1879
1880In this example, the interwave card is always loaded as the first card
1881(index 0) and ens1371 as the second (index 1).
1882
1883
1884ALSA PCM devices to OSS devices mapping
1885=======================================
1886
1887/dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1888/dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1889/dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1890/dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1891/dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1892/dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1893/dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1894/dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1895/dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1896
1897The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1898sound card number and second means device number. The ALSA devices
1899have either 'c' or 'p' suffix indicating the direction, capture and
1900playback, respectively.
1901
1902Please note that the device mapping above may be varied via the module
1903options of snd-pcm-oss module.
1904
1905
1906DEVFS support
1907=============
1908
1909The ALSA driver fully supports the devfs extension.
1910You should add lines below to your devfsd.conf file:
1911
1912LOOKUP snd MODLOAD ACTION snd
1913REGISTER ^sound/.* PERMISSIONS root.audio 660
1914REGISTER ^snd/.* PERMISSIONS root.audio 660
1915
1916Warning: These lines assume that you have the audio group in your system.
1917 Otherwise replace audio word with another group name (root for
1918 example).
1919
1920
1921Proc interfaces (/proc/asound)
1922==============================
1923
1924/proc/asound/card#/pcm#[cp]/oss
1925-------------------------------
1926 String "erase" - erase all additional informations about OSS applications
1927 String "<app_name> <fragments> <fragment_size> [<options>]"
1928
1929 <app_name> - name of application with (higher priority) or without path
1930 <fragments> - number of fragments or zero if auto
1931 <fragment_size> - size of fragment in bytes or zero if auto
1932 <options> - optional parameters
1933 - disable the application tries to open a pcm device for
1934 this channel but does not want to use it.
1935 (Cause a bug or mmap needs)
1936 It's good for Quake etc...
1937 - direct don't use plugins
1938 - block force block mode (rvplayer)
1939 - non-block force non-block mode
1940 - whole-frag write only whole fragments (optimization affecting
1941 playback only)
1942 - no-silence do not fill silence ahead to avoid clicks
Takashi Iwai10f69f92005-09-08 13:48:34 +02001943 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1944 instead of filled blocks
Linus Torvalds1da177e2005-04-16 15:20:36 -07001945
1946 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1947 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1948 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1949
1950
Takashi Iwaib6a96912005-05-30 18:27:03 +02001951Early Buffer Allocation
1952=======================
1953
1954Some drivers (e.g. hdsp) require the large contiguous buffers, and
1955sometimes it's too late to find such spaces when the driver module is
1956actually loaded due to memory fragmentation. You can pre-allocate the
1957PCM buffers by loading snd-page-alloc module and write commands to its
1958proc file in prior, for example, in the early boot stage like
1959/etc/init.d/*.local scripts.
1960
1961Reading the proc file /proc/drivers/snd-page-alloc shows the current
1962usage of page allocation. In writing, you can send the following
1963commands to the snd-page-alloc driver:
1964
1965 - add VENDOR DEVICE MASK SIZE BUFFERS
1966
1967 VENDOR and DEVICE are PCI vendor and device IDs. They take
1968 integer numbers (0x prefix is needed for the hex).
1969 MASK is the PCI DMA mask. Pass 0 if not restricted.
1970 SIZE is the size of each buffer to allocate. You can pass
1971 k and m suffix for KB and MB. The max number is 16MB.
1972 BUFFERS is the number of buffers to allocate. It must be greater
1973 than 0. The max number is 4.
1974
1975 - erase
1976
1977 This will erase the all pre-allocated buffers which are not in
1978 use.
1979
1980
Takashi Iwai62430082005-09-05 17:12:29 +02001981Links and Addresses
1982===================
Linus Torvalds1da177e2005-04-16 15:20:36 -07001983
1984 ALSA project homepage
1985 http://www.alsa-project.org
1986
Takashi Iwai62430082005-09-05 17:12:29 +02001987 ALSA Bug Tracking System
1988 https://bugtrack.alsa-project.org/bugs/
1989
1990 ALSA Developers ML
1991 mailto:alsa-devel@lists.sourceforge.net