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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.
Linus Torvalds1da177e2005-04-16 15:20:36 -070060
61
62 Module snd-pcm-oss
63 ------------------
64
65 The PCM OSS emulation module.
66 This module takes options which change the mapping of devices.
67
68 dsp_map - PCM device number maps assigned to the 1st OSS device.
69 - Default: 0
70 adsp_map - PCM device number maps assigned to the 2st OSS device.
71 - Default: 1
72 nonblock_open
Takashi Iwai62430082005-09-05 17:12:29 +020073 - Don't block opening busy PCM devices. Default: 1
Linus Torvalds1da177e2005-04-16 15:20:36 -070074
75 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
76 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
77 to PCM #0 of the card #0.
78 For changing the second or later card, specify the option with
79 commas, such like "dsp_map=0,1".
80
81 nonblock_open option is used to change the behavior of the PCM
82 regarding opening the device. When this option is non-zero,
83 opening a busy OSS PCM device won't be blocked but return
84 immediately with EAGAIN (just like O_NONBLOCK flag).
85
86 Module snd-rawmidi
87 ------------------
88
89 This module takes options which change the mapping of devices.
90 similar to those of the snd-pcm-oss module.
91
92 midi_map - MIDI device number maps assigned to the 1st OSS device.
93 - Default: 0
94 amidi_map - MIDI device number maps assigned to the 2st OSS device.
95 - Default: 1
96
97 Common parameters for top sound card modules
98 --------------------------------------------
99
100 Each of top level sound card module takes the following options.
101
102 index - index (slot #) of sound card
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100103 - Values: 0 through 31 or negative
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104 - If nonnegative, assign that index number
105 - if negative, interpret as a bitmask of permissible
106 indices; the first free permitted index is assigned
107 - Default: -1
108 id - card ID (identifier or name)
109 - Can be up to 15 characters long
110 - Default: the card type
111 - A directory by this name is created under /proc/asound/
112 containing information about the card
113 - This ID can be used instead of the index number in
114 identifying the card
115 enable - enable card
116 - Default: enabled, for PCI and ISA PnP cards
117
Rene Hermancf40a312006-03-28 12:38:20 +0200118 Module snd-adlib
119 ----------------
120
121 Module for AdLib FM cards.
122
123 port - port # for OPL chip
124
125 This module supports multiple cards. It does not support autoprobe, so
126 the port must be specified. For actual AdLib FM cards it will be 0x388.
127 Note that this card does not have PCM support and no mixer; only FM
128 synthesis.
129
130 Make sure you have "sbiload" from the alsa-tools package available and,
131 after loading the module, find out the assigned ALSA sequencer port
132 number through "sbiload -l". Example output:
133
134 Port Client name Port name
135 64:0 OPL2 FM synth OPL2 FM Port
136
137 Load the std.sb and drums.sb patches also supplied by sbiload:
138
139 sbiload -p 64:0 std.sb drums.sb
140
141 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
142 instead. To have the card produce sound, use aplaymidi from alsa-utils:
143
144 aplaymidi -p 64:0 foo.mid
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 Module snd-ad1816a
147 ------------------
148
149 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
150
151 port - port # for AD1816A chip (PnP setup)
152 mpu_port - port # for MPU-401 UART (PnP setup)
153 fm_port - port # for OPL3 (PnP setup)
154 irq - IRQ # for AD1816A chip (PnP setup)
155 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
156 dma1 - first DMA # for AD1816A chip (PnP setup)
157 dma2 - second DMA # for AD1816A chip (PnP setup)
Takashi Iwai506d4c62005-08-03 14:02:47 +0200158 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100160 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161
162 Module snd-ad1848
163 -----------------
164
165 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
166
167 port - port # for AD1848 chip
168 irq - IRQ # for AD1848 chip
169 dma1 - DMA # for AD1848 chip (0,1,3)
170
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100171 This module supports multiple cards. It does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172 thus main port must be specified!!! Other ports are optional.
173
Takashi Iwaia4efc232005-11-17 17:24:26 +0100174 The power-management is supported.
175
Clemens Ladisch84010e62005-09-02 07:57:59 +0200176 Module snd-ad1889
177 -----------------
178
179 Module for Analog Devices AD1889 chips.
180
181 ac97_quirk - AC'97 workaround for strange hardware
182 See the description of intel8x0 module for details.
183
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100184 This module supports multiple cards.
Clemens Ladisch84010e62005-09-02 07:57:59 +0200185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186 Module snd-ali5451
187 ------------------
188
189 Module for ALi M5451 PCI chip.
190
191 pcm_channels - Number of hardware channels assigned for PCM
192 spdif - Support SPDIF I/O
193 - Default: disabled
194
Takashi Iwai8a3fb4d2005-10-20 17:10:49 +0200195 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
197 The power-management is supported.
198
199 Module snd-als100
200 -----------------
201
202 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
203
204 port - port # for ALS100 (SB16) chip (PnP setup)
205 irq - IRQ # for ALS100 (SB16) chip (PnP setup)
206 dma8 - 8-bit DMA # for ALS100 (SB16) chip (PnP setup)
207 dma16 - 16-bit DMA # for ALS100 (SB16) chip (PnP setup)
208 mpu_port - port # for MPU-401 UART (PnP setup)
209 mpu_irq - IRQ # for MPU-401 (PnP setup)
210 fm_port - port # for OPL3 FM (PnP setup)
211
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100212 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213
Takashi Iwaia4efc232005-11-17 17:24:26 +0100214 The power-management is supported.
215
Ash Willisb3a70d52006-03-27 13:20:40 +0200216 Module snd-als300
217 -----------------
218
219 Module for Avance Logic ALS300 and ALS300+
220
221 This module supports multiple cards.
222
223 The power-management is supported.
224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 Module snd-als4000
226 ------------------
227
228 Module for sound cards based on Avance Logic ALS4000 PCI chip.
229
230 joystick_port - port # for legacy joystick support.
231 0 = disabled (default), 1 = auto-detect
232
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100233 This module supports multiple cards, autoprobe and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
Takashi Iwaia4efc232005-11-17 17:24:26 +0100235 The power-management is supported.
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 Module snd-atiixp
238 -----------------
239
Takashi Iwai62430082005-09-05 17:12:29 +0200240 Module for ATI IXP 150/200/250/400 AC97 controllers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241
Takashi Iwai62430082005-09-05 17:12:29 +0200242 ac97_clock - AC'97 clock (default = 48000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +0200244 See "AC97 Quirk Option" section below.
Dan Carpenter14e1d352006-11-20 16:35:18 +0100245 ac97_codec - Workaround to specify which AC'97 codec
246 instead of probing. If this works for you
247 file a bug with your `lspci -vn` output.
248 -2 -- Force probing.
249 -1 -- Default behavior.
250 0-2 -- Use the specified codec.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
252
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200253 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254
Takashi Iwai62430082005-09-05 17:12:29 +0200255 ATI IXP has two different methods to control SPDIF output. One is
256 over AC-link and another is over the "direct" SPDIF output. The
257 implementation depends on the motherboard, and you'll need to
258 choose the correct one via spdif_aclink module option.
259
Takashi Iwaia4efc232005-11-17 17:24:26 +0100260 The power-management is supported.
261
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 Module snd-atiixp-modem
263 -----------------------
264
265 Module for ATI IXP 150/200/250 AC97 modem controllers.
266
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200267 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
269 Note: The default index value of this module is -2, i.e. the first
270 slot is excluded.
271
Takashi Iwaia4efc232005-11-17 17:24:26 +0100272 The power-management is supported.
273
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 Module snd-au8810, snd-au8820, snd-au8830
275 -----------------------------------------
276
277 Module for Aureal Vortex, Vortex2 and Advantage device.
278
279 pcifix - Control PCI workarounds
280 0 = Disable all workarounds
281 1 = Force the PCI latency of the Aureal card to 0xff
282 2 = Force the Extend PCI#2 Internal Master for Efficient
283 Handling of Dummy Requests on the VIA KT133 AGP Bridge
284 3 = Force both settings
285 255 = Autodetect what is required (default)
286
287 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
288 EQ, mpu401, gameport. A3D and wavetable support are still in development.
289 Development and reverse engineering work is being coordinated at
290 http://savannah.nongnu.org/projects/openvortex/
291 SPDIF output has a copy of the AC97 codec output, unless you use the
292 "spdif" pcm device, which allows raw data passthru.
293 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
294 Advantage.
295
Takashi Iwai62430082005-09-05 17:12:29 +0200296 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 control correctly. If you have problems regarding this, try
298 another ALSA compliant mixer (alsamixer works).
299
300 Module snd-azt2320
301 ------------------
302
303 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
304
305 port - port # for AZT2320 chip (PnP setup)
306 wss_port - port # for WSS (PnP setup)
307 mpu_port - port # for MPU-401 UART (PnP setup)
308 fm_port - FM port # for AZT2320 chip (PnP setup)
309 irq - IRQ # for AZT2320 (WSS) chip (PnP setup)
310 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
311 dma1 - 1st DMA # for AZT2320 (WSS) chip (PnP setup)
312 dma2 - 2nd DMA # for AZT2320 (WSS) chip (PnP setup)
313
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100314 This module supports multiple cards, PnP and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315
Takashi Iwaia4efc232005-11-17 17:24:26 +0100316 The power-management is supported.
317
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 Module snd-azt3328
319 ------------------
320
321 Module for sound cards based on Aztech AZF3328 PCI chip.
322
323 joystick - Enable joystick (default off)
324
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100325 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326
327 Module snd-bt87x
328 ----------------
329
330 Module for video cards based on Bt87x chips.
331
332 digital_rate - Override the default digital rate (Hz)
333 load_all - Load the driver even if the card model isn't known
334
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100335 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336
337 Note: The default index value of this module is -2, i.e. the first
338 slot is excluded.
339
340 Module snd-ca0106
341 -----------------
342
343 Module for Creative Audigy LS and SB Live 24bit
344
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100345 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347
348 Module snd-cmi8330
349 ------------------
350
351 Module for sound cards based on C-Media CMI8330 ISA chips.
352
353 wssport - port # for CMI8330 chip (WSS)
354 wssirq - IRQ # for CMI8330 chip (WSS)
355 wssdma - first DMA # for CMI8330 chip (WSS)
356 sbport - port # for CMI8330 chip (SB16)
357 sbirq - IRQ # for CMI8330 chip (SB16)
358 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
359 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
360
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100361 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
Takashi Iwaia4efc232005-11-17 17:24:26 +0100363 The power-management is supported.
364
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 Module snd-cmipci
366 -----------------
367
368 Module for C-Media CMI8338 and 8738 PCI sound cards.
369
Takashi Iwaicab5c4c2006-05-04 14:36:08 +0200370 mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
371 1 = integrated PCI port,
372 0 = disable (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 fm_port - 0x388 (default), 0 = disable (default)
Takashi Iwai62430082005-09-05 17:12:29 +0200374 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 (default = 1)
376 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
377
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100378 This module supports autoprobe and multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
Takashi Iwaia4efc232005-11-17 17:24:26 +0100380 The power-management is supported.
381
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 Module snd-cs4231
383 -----------------
384
385 Module for sound cards based on CS4231 ISA chips.
386
387 port - port # for CS4231 chip
388 mpu_port - port # for MPU-401 UART (optional), -1 = disable
389 irq - IRQ # for CS4231 chip
390 mpu_irq - IRQ # for MPU-401 UART
391 dma1 - first DMA # for CS4231 chip
392 dma2 - second DMA # for CS4231 chip
393
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100394 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 thus main port must be specified!!! Other ports are optional.
396
397 The power-management is supported.
398
399 Module snd-cs4232
400 -----------------
401
402 Module for sound cards based on CS4232/CS4232A ISA chips.
403
404 port - port # for CS4232 chip (PnP setup - 0x534)
405 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
406 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
407 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
408 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
409 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
410 dma1 - first DMA # for CS4232 chip (0,1,3)
411 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
412 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
413
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100414 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 thus main port must be specified!!! Other ports are optional.
416
417 The power-management is supported.
418
419 Module snd-cs4236
420 -----------------
421
422 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
423 CS4238B/CS4239 ISA chips.
424
425 port - port # for CS4236 chip (PnP setup - 0x534)
426 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
427 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
428 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
429 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
430 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
431 dma1 - first DMA # for CS4236 chip (0,1,3)
432 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
433 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
434
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100435 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 (if ISA PnP is not used) thus main port and control port must be
437 specified!!! Other ports are optional.
438
439 The power-management is supported.
440
441 Module snd-cs4281
442 -----------------
443
444 Module for Cirrus Logic CS4281 soundchip.
445
446 dual_codec - Secondary codec ID (0 = disable, default)
447
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100448 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450 The power-management is supported.
451
452 Module snd-cs46xx
453 -----------------
454
455 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
456 CS4624/CS4630/CS4280 PCI chips.
457
Takashi Iwai62430082005-09-05 17:12:29 +0200458 external_amp - Force to enable external amplifier.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 thinkpad - Force to enable Thinkpad's CLKRUN control.
460 mmap_valid - Support OSS mmap mode (default = 0).
461
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100462 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 Usually external amp and CLKRUN controls are detected automatically
464 from PCI sub vendor/device ids. If they don't work, give the options
465 above explicitly.
466
467 The power-management is supported.
468
Takashi Iwai3e873172005-11-17 10:15:37 +0100469 Module snd-cs5535audio
470 ----------------------
471
472 Module for multifunction CS5535 companion PCI device
473
Takashi Iwaic00bd742006-05-19 19:22:34 +0200474 The power-management is supported.
Takashi Iwai3e873172005-11-17 10:15:37 +0100475
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200476 Module snd-darla20
477 ------------------
478
479 Module for Echoaudio Darla20
480
481 This module supports multiple cards.
482 The driver requires the firmware loader support on kernel.
483
484 Module snd-darla24
485 ------------------
486
487 Module for Echoaudio Darla24
488
489 This module supports multiple cards.
490 The driver requires the firmware loader support on kernel.
491
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 Module snd-dt019x
493 -----------------
494
495 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
496 only)
497
498 port - Port # (PnP setup)
499 mpu_port - Port # for MPU-401 (PnP setup)
500 fm_port - Port # for FM OPL-3 (PnP setup)
501 irq - IRQ # (PnP setup)
502 mpu_irq - IRQ # for MPU-401 (PnP setup)
503 dma8 - DMA # (PnP setup)
504
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100505 This module supports multiple cards. This module is enabled only with
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 ISA PnP support.
507
Takashi Iwaia4efc232005-11-17 17:24:26 +0100508 The power-management is supported.
509
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510 Module snd-dummy
511 ----------------
512
513 Module for the dummy sound card. This "card" doesn't do any output
514 or input, but you may use this module for any application which
515 requires a sound card (like RealPlayer).
516
Takashi Iwaia4efc232005-11-17 17:24:26 +0100517 The power-management is supported.
518
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200519 Module snd-echo3g
520 -----------------
521
522 Module for Echoaudio 3G cards (Gina3G/Layla3G)
523
524 This module supports multiple cards.
525 The driver requires the firmware loader support on kernel.
526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527 Module snd-emu10k1
528 ------------------
529
530 Module for EMU10K1/EMU10k2 based PCI sound cards.
531 * Sound Blaster Live!
532 * Sound Blaster PCI 512
533 * Emu APS (partially supported)
534 * Sound Blaster Audigy
535
536 extin - bitmap of available external inputs for FX8010 (see bellow)
537 extout - bitmap of available external outputs for FX8010 (see bellow)
538 seq_ports - allocated sequencer ports (4 by default)
539 max_synth_voices - limit of voices used for wavetable (64 by default)
540 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
541 given in MB unit. Default value is 128.
542 enable_ir - enable IR
543
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100544 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545
546 Input & Output configurations [extin/extout]
547 * Creative Card wo/Digital out [0x0003/0x1f03]
548 * Creative Card w/Digital out [0x0003/0x1f0f]
549 * Creative Card w/Digital CD in [0x000f/0x1f0f]
550 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
551 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
552 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
553 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
554 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
555 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
556 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
557 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
558 * Creative Card all ins and outs [0x3fff/0x7fff]
559
Takashi Iwaia4efc232005-11-17 17:24:26 +0100560 The power-management is supported.
561
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562 Module snd-emu10k1x
563 -------------------
564
565 Module for Creative Emu10k1X (SB Live Dell OEM version)
566
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100567 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568
569 Module snd-ens1370
570 ------------------
571
572 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
573 * SoundBlaster PCI 64
574 * SoundBlaster PCI 128
575
576 joystick - Enable joystick (default off)
577
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100578 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
Takashi Iwaid6ec8942006-01-20 14:05:06 +0100580 The power-management is supported.
581
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582 Module snd-ens1371
583 ------------------
584
585 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
586 * SoundBlaster PCI 64
587 * SoundBlaster PCI 128
588 * SoundBlaster Vibra PCI
589
590 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
591 0 = disable (default), 1 = auto-detect
592
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100593 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594
Takashi Iwaid6ec8942006-01-20 14:05:06 +0100595 The power-management is supported.
596
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 Module snd-es968
598 ----------------
599
600 Module for sound cards based on ESS ES968 chip (PnP only).
601
602 port - port # for ES968 (SB8) chip (PnP setup)
603 irq - IRQ # for ES968 (SB8) chip (PnP setup)
604 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
605
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100606 This module supports multiple cards, PnP and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607
Takashi Iwaia4efc232005-11-17 17:24:26 +0100608 The power-management is supported.
609
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 Module snd-es1688
611 -----------------
612
613 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
614
615 port - port # for ES-1688 chip (0x220,0x240,0x260)
616 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
617 irq - IRQ # for ES-1688 chip (5,7,9,10)
618 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
619 dma8 - DMA # for ES-1688 chip (0,1,3)
620
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100621 This module supports multiple cards and autoprobe (without MPU-401 port).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622
623 Module snd-es18xx
624 -----------------
625
626 Module for ESS AudioDrive ES-18xx sound cards.
627
628 port - port # for ES-18xx chip (0x220,0x240,0x260)
629 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
630 fm_port - port # for FM (optional, not used)
631 irq - IRQ # for ES-18xx chip (5,7,9,10)
632 dma1 - first DMA # for ES-18xx chip (0,1,3)
633 dma2 - first DMA # for ES-18xx chip (0,1,3)
634 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
635
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100636 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
637 port if native ISA PnP routines are not used).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 When dma2 is equal with dma1, the driver works as half-duplex.
639
640 The power-management is supported.
641
642 Module snd-es1938
643 -----------------
644
645 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
646
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100647 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648
Takashi Iwaia4efc232005-11-17 17:24:26 +0100649 The power-management is supported.
650
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 Module snd-es1968
652 -----------------
653
654 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
655
656 total_bufsize - total buffer size in kB (1-4096kB)
657 pcm_substreams_p - playback channels (1-8, default=2)
658 pcm_substreams_c - capture channels (1-8, default=0)
659 clock - clock (0 = auto-detection)
660 use_pm - support the power-management (0 = off, 1 = on,
661 2 = auto (default))
662 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
663 joystick - enable joystick (default off)
664
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100665 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666
667 The power-management is supported.
668
669 Module snd-fm801
670 ----------------
671
672 Module for ForteMedia FM801 based PCI sound cards.
673
674 tea575x_tuner - Enable TEA575x tuner
675 - 1 = MediaForte 256-PCS
676 - 2 = MediaForte 256-PCPR
677 - 3 = MediaForte 64-PCR
678 - High 16-bits are video (radio) device number + 1
679 - example: 0x10002 (MediaForte 256-PCPR, device 1)
680
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100681 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682
Takashi Iwaia4efc232005-11-17 17:24:26 +0100683 The power-management is supported.
684
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200685 Module snd-gina20
686 -----------------
687
688 Module for Echoaudio Gina20
689
690 This module supports multiple cards.
691 The driver requires the firmware loader support on kernel.
692
693 Module snd-gina24
694 -----------------
695
696 Module for Echoaudio Gina24
697
698 This module supports multiple cards.
699 The driver requires the firmware loader support on kernel.
700
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 Module snd-gusclassic
702 ---------------------
703
704 Module for Gravis UltraSound Classic sound card.
705
706 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
707 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
708 dma1 - DMA # for GF1 chip (1,3,5,6,7)
709 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
710 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
711 voices - GF1 voices limit (14-32)
712 pcm_voices - reserved PCM voices
713
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100714 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715
716 Module snd-gusextreme
717 ---------------------
718
719 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
720
721 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
722 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
723 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
724 irq - IRQ # for ES-1688 chip (5,7,9,10)
725 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
726 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
727 dma8 - DMA # for ES-1688 chip (0,1,3)
728 dma1 - DMA # for GF1 chip (1,3,5,6,7)
729 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
730 voices - GF1 voices limit (14-32)
731 pcm_voices - reserved PCM voices
732
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100733 This module supports multiple cards and autoprobe (without MPU-401 port).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734
735 Module snd-gusmax
736 -----------------
737
738 Module for Gravis UltraSound MAX sound card.
739
740 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
741 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
742 dma1 - DMA # for GF1 chip (1,3,5,6,7)
743 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
744 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
745 voices - GF1 voices limit (14-32)
746 pcm_voices - reserved PCM voices
747
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100748 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
750 Module snd-hda-intel
751 --------------------
752
Takashi Iwai9b878192006-05-17 11:26:39 +0200753 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
754 ATI SB450, SB600, RS600,
755 VIA VT8251/VT8237A,
756 SIS966, ULI M5461
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757
758 model - force the model name
Takashi Iwai62430082005-09-05 17:12:29 +0200759 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
Takashi Iwai27346162006-01-12 18:28:44 +0100760 single_cmd - Use single immediate commands to communicate with
761 codecs (for debugging only)
Takashi Iwai134a11f2006-11-10 12:08:37 +0100762 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Clemens Ladischb7fe4622005-10-04 08:46:51 +0200764 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765
766 Each codec may have a model table for different configurations.
767 If your machine isn't listed there, the default (usually minimal)
768 configuration is set up. You can pass "model=<name>" option to
769 specify a certain model in such a case. There are different
770 models depending on the codec chip.
771
772 Model name Description
773 ---------- -----------
774 ALC880
775 3stack 3-jack in back and a headphone out
776 3stack-digout 3-jack in back, a HP out and a SPDIF out
777 5stack 5-jack in back, 2-jack in front
778 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
Takashi Iwaib6482d42005-06-27 15:32:43 +0200779 6stack 6-jack in back, 2-jack in front
780 6stack-digout 6-jack with a SPDIF out
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781 w810 3-jack
Takashi Iwaidfc0ff62005-05-12 14:31:49 +0200782 z71v 3-jack (HP shared SPDIF)
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200783 asus 3-jack (ASUS Mobo)
784 asus-w1v ASUS W1V
785 asus-dig ASUS with SPDIF out
786 asus-dig2 ASUS with SPDIF out (using GPIO2)
Takashi Iwaie9edcee2005-06-13 14:16:38 +0200787 uniwill 3-jack
788 F1734 2-jack
Takashi Iwaiae6b8132006-03-03 16:47:17 +0100789 lg LG laptop (m1 express dual)
Takashi Iwaicd417d42006-09-06 16:03:11 +0200790 lg-lw LG LW20/LW25 laptop
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200791 tcl TCL S700
Takashi Iwai5a053d02006-07-25 14:51:15 +0200792 clevo Clevo laptops (m520G, m665n)
Takashi Iwaib6482d42005-06-27 15:32:43 +0200793 test for testing/debugging purpose, almost all controls can be
794 adjusted. Appearing only when compiled with
795 $CONFIG_SND_DEBUG=y
Takashi Iwaied345f82006-03-01 14:16:53 +0100796 auto auto-config reading BIOS (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797
Takashi Iwai21be3d12005-09-16 19:18:56 +0200798 ALC260
799 hp HP machines
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200800 hp-3013 HP machines (3013-variant)
Takashi Iwai21be3d12005-09-16 19:18:56 +0200801 fujitsu Fujitsu S7020
Takashi Iwaied345f82006-03-01 14:16:53 +0100802 acer Acer TravelMate
803 basic fixed pin assignment (old default model)
804 auto auto-config reading BIOS (default)
805
806 ALC262
807 fujitsu Fujitsu Laptop
Takashi Iwai6d177ba72006-07-25 14:51:15 +0200808 hp-bpc HP xw4400/6400/8400/9400 laptops
Kailang Yangcd7509a2007-01-26 18:33:17 +0100809 hp-bpc-d7000 HP BPC D7000
Takashi Iwai304dcaa2006-07-25 14:51:16 +0200810 benq Benq ED8
Takashi Iwaid1f67542006-11-14 12:30:52 +0100811 hippo Hippo (ATI) with jack detection, Sony UX-90s
Kailang Yangccc656c2006-10-17 12:32:26 +0200812 hippo_1 Hippo (Benq) with jack detection
Takashi Iwaied345f82006-03-01 14:16:53 +0100813 basic fixed pin assignment w/o SPDIF
814 auto auto-config reading BIOS (default)
815
Takashi Iwai9c7f8522006-06-28 15:08:22 +0200816 ALC882/885
Takashi Iwaied345f82006-03-01 14:16:53 +0100817 3stack-dig 3-jack with SPDIF I/O
Tobin Davis518f6a62006-12-28 13:55:41 +0100818 6stack-dig 6-jack digital with SPDIF I/O
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200819 arima Arima W820Di1
Tobin Davis518f6a62006-12-28 13:55:41 +0100820 macpro MacPro support
Takashi Iwaied345f82006-03-01 14:16:53 +0100821 auto auto-config reading BIOS (default)
822
Takashi Iwai9c7f8522006-06-28 15:08:22 +0200823 ALC883/888
824 3stack-dig 3-jack with SPDIF I/O
825 6stack-dig 6-jack digital with SPDIF I/O
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200826 3stack-6ch 3-jack 6-channel
827 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
828 6stack-dig-demo 6-jack digital for Intel demo board
Vladimir Avdoninbab282b92006-08-22 13:31:58 +0200829 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
Tobin Davisc07584c2006-10-13 12:32:16 +0200830 medion Medion Laptops
Kailang Yangccc656c2006-10-17 12:32:26 +0200831 targa-dig Targa/MSI
832 targa-2ch-dig Targs/MSI with 2-channel
Andrew L. Neporadab373bde2006-11-07 11:37:08 +0100833 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
Takashi Iwai9c7f8522006-06-28 15:08:22 +0200834 auto auto-config reading BIOS (default)
835
836 ALC861/660
Takashi Iwaied345f82006-03-01 14:16:53 +0100837 3stack 3-jack
838 3stack-dig 3-jack with SPDIF I/O
839 6stack-dig 6-jack with SPDIF I/O
Takashi Iwai4b146cb2006-07-28 14:42:36 +0200840 3stack-660 3-jack (for ALC660)
Takashi Iwai22309c32006-08-09 16:57:28 +0200841 uniwill-m31 Uniwill M31 laptop
Tobin Davisa53d1ae2006-10-17 12:00:28 +0200842 toshiba Toshiba laptop support
Mariusz Domanski7cdbff92006-10-23 13:42:56 +0200843 asus Asus laptop support
Takashi Iwai56bb0ca2006-11-22 11:52:52 +0100844 asus-laptop ASUS F2/F3 laptops
Takashi Iwaied345f82006-03-01 14:16:53 +0100845 auto auto-config reading BIOS (default)
Takashi Iwai21be3d12005-09-16 19:18:56 +0200846
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847 CMI9880
848 minimal 3-jack in back
849 min_fp 3-jack in back, 2-jack in front
850 full 6-jack in back, 2-jack in front
851 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
852 allout 5-jack in back, 2-jack in front, SPDIF out
Takashi Iwaie9edcee2005-06-13 14:16:38 +0200853 auto auto-config reading BIOS (default)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
Takashi Iwai9230d212006-03-13 13:49:49 +0100855 AD1981
856 basic 3-jack (default)
857 hp HP nx6320
Takashi Iwai01686c5f2006-04-18 12:54:11 +0200858 thinkpad Lenovo Thinkpad T60/X60/Z60
Takashi Iwai9230d212006-03-13 13:49:49 +0100859
860 AD1986A
861 6stack 6-jack, separate surrounds (default)
862 3stack 3-stack, shared surrounds
863 laptop 2-channel only (FSC V2060, Samsung M50)
Takashi Iwai825aa9722006-03-17 10:50:49 +0100864 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
Tobin Davisf36090f2007-01-08 11:07:12 +0100865 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
Takashi Iwai9230d212006-03-13 13:49:49 +0100866
867 AD1988
868 6stack 6-jack
869 6stack-dig ditto with SPDIF
870 3stack 3-jack
871 3stack-dig ditto with SPDIF
872 laptop 3-jack with hp-jack automute
873 laptop-dig ditto with SPDIF
Guillaume Munch99ccc562006-08-16 19:35:12 +0200874 auto auto-config reading BIOS (default)
Tobin Davisc9b443d2006-11-14 12:13:39 +0100875
876 Conexant 5045
877 laptop Laptop config
878 test for testing/debugging purpose, almost all controls
879 can be adjusted. Appearing only when compiled with
880 $CONFIG_SND_DEBUG=y
881
882 Conexant 5047
883 laptop Basic Laptop config
884 laptop-hp Laptop config for some HP models (subdevice 30A5)
885 laptop-eapd Laptop config with EAPD support
886 test for testing/debugging purpose, almost all controls
887 can be adjusted. Appearing only when compiled with
888 $CONFIG_SND_DEBUG=y
Takashi Iwai9230d212006-03-13 13:49:49 +0100889
Tobin Davis93ed1502006-09-01 21:03:12 +0200890 STAC9200/9205/9220/9221/9254
891 ref Reference board
892 3stack D945 3stack
893 5stack D945 5stack + SPDIF
894
Tobin Davis8e21c342007-01-08 11:04:17 +0100895 STAC9202/9250/9251
896 ref Reference board, base config
897 m2-2 Some Gateway MX series laptops
898 m6 Some Gateway NX series laptops
899
Tobin Davis93ed1502006-09-01 21:03:12 +0200900 STAC9227/9228/9229/927x
901 ref Reference board
902 3stack D965 3stack
903 5stack D965 5stack + SPDIF
904
Guillaume Munch6d859062006-08-22 17:15:47 +0200905 STAC9872
906 vaio Setup for VAIO FE550G/SZ110
907 vaio-ar Setup for VAIO AR
Takashi Iwaidb064e52006-03-16 16:04:58 +0100908
Takashi Iwai62430082005-09-05 17:12:29 +0200909 If the default configuration doesn't work and one of the above
910 matches with your device, report it together with the PCI
911 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
912 ML (see the section "Links and Addresses").
913
Takashi Iwaic74db862005-05-12 14:26:27 +0200914 Note 2: If you get click noises on output, try the module option
915 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
916 register value without FIFO size correction as the current
917 DMA pointer. position_fix=2 will make the driver to use
918 the position buffer instead of reading SD_LPIB register.
919 (Usually SD_LPLIB register is more accurate than the
920 position buffer.)
921
Takashi Iwai27346162006-01-12 18:28:44 +0100922 NB: If you get many "azx_get_response timeout" messages at
923 loading, it's likely a problem of interrupts (e.g. ACPI irq
924 routing). Try to boot with options like "pci=noacpi". Also, you
925 can try "single_cmd=1" module option. This will switch the
926 communication method between HDA controller and codecs to the
927 single immediate commands instead of CORB/RIRB. Basically, the
928 single command mode is provided only for BIOS, and you won't get
929 unsolicited events, too. But, at least, this works independently
930 from the irq. Remember this is a last resort, and should be
931 avoided as much as possible...
932
Takashi Iwaia4efc232005-11-17 17:24:26 +0100933 The power-management is supported.
934
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935 Module snd-hdsp
936 ---------------
937
938 Module for RME Hammerfall DSP audio interface(s)
939
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100940 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941
942 Note: The firmware data can be automatically loaded via hotplug
943 when CONFIG_FW_LOADER is set. Otherwise, you need to load
944 the firmware via hdsploader utility included in alsa-tools
945 package.
946 The firmware data is found in alsa-firmware package.
947
948 Note: snd-page-alloc module does the job which snd-hammerfall-mem
949 module did formerly. It will allocate the buffers in advance
950 when any HDSP cards are found. To make the buffer
951 allocation sure, load snd-page-alloc module in the early
Takashi Iwaib6a96912005-05-30 18:27:03 +0200952 stage of boot sequence. See "Early Buffer Allocation"
953 section.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Takashi Iwai54704402005-06-03 11:27:00 +0200955 Module snd-hdspm
956 ----------------
957
958 Module for RME HDSP MADI board.
959
960 precise_ptr - Enable precise pointer, or disable.
961 line_outs_monitor - Send playback streams to analog outs by default.
962 enable_monitor - Enable Analog Out on Channel 63/64 by default.
963
964 See hdspm.txt for details.
965
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 Module snd-ice1712
967 ------------------
968
969 Module for Envy24 (ICE1712) based PCI sound cards.
970 * MidiMan M Audio Delta 1010
971 * MidiMan M Audio Delta 1010LT
972 * MidiMan M Audio Delta DiO 2496
973 * MidiMan M Audio Delta 66
974 * MidiMan M Audio Delta 44
975 * MidiMan M Audio Delta 410
976 * MidiMan M Audio Audiophile 2496
977 * TerraTec EWS 88MT
978 * TerraTec EWS 88D
979 * TerraTec EWX 24/96
980 * TerraTec DMX 6Fire
Takashi Iwaic9bce912005-05-24 13:41:03 +0200981 * TerraTec Phase 88
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982 * Hoontech SoundTrack DSP 24
983 * Hoontech SoundTrack DSP 24 Value
984 * Hoontech SoundTrack DSP 24 Media 7.1
Takashi Iwaic9bce912005-05-24 13:41:03 +0200985 * Event Electronics, EZ8
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 * Digigram VX442
Takashi Iwaic9bce912005-05-24 13:41:03 +0200987 * Lionstracs, Mediastaton
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988
989 model - Use the given board model, one of the following:
990 delta1010, dio2496, delta66, delta44, audiophile, delta410,
991 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
Takashi Iwaic9bce912005-05-24 13:41:03 +0200992 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
993 phase88, mediastation
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 omni - Omni I/O support for MidiMan M-Audio Delta44/66
Matt LaPlantefa00e7e2006-11-30 04:55:36 +0100995 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 in msec resolution, default value is 500 (0.5 sec)
997
Clemens Ladisch0ef797c2005-11-21 07:30:20 +0100998 This module supports multiple cards and autoprobe. Note: The consumer part
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999 is not used with all Envy24 based cards (for example in the MidiMan Delta
1000 serie).
1001
Takashi Iwaic9bce912005-05-24 13:41:03 +02001002 Note: The supported board is detected by reading EEPROM or PCI
1003 SSID (if EEPROM isn't available). You can override the
1004 model by passing "model" module option in case that the
1005 driver isn't configured properly or you want to try another
1006 type for testing.
1007
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008 Module snd-ice1724
1009 ------------------
1010
Takashi Iwaic9bce912005-05-24 13:41:03 +02001011 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +01001012 * MidiMan M Audio Revolution 5.1
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013 * MidiMan M Audio Revolution 7.1
Takashi Iwai56255062006-11-09 16:47:26 +01001014 * MidiMan M Audio Audiophile 192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015 * AMP Ltd AUDIO2000
Takashi Iwaic9bce912005-05-24 13:41:03 +02001016 * TerraTec Aureon 5.1 Sky
1017 * TerraTec Aureon 7.1 Space
1018 * TerraTec Aureon 7.1 Universe
1019 * TerraTec Phase 22
1020 * TerraTec Phase 28
1021 * AudioTrak Prodigy 7.1
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +01001022 * AudioTrak Prodigy 7.1LT
Takashi Iwaic9bce912005-05-24 13:41:03 +02001023 * AudioTrak Prodigy 192
1024 * Pontis MS300
1025 * Albatron K8X800 Pro II
1026 * Chaintech ZNF3-150
1027 * Chaintech ZNF3-250
1028 * Chaintech 9CJS
Takashi Iwai8cfbbac2005-05-27 12:10:40 +02001029 * Chaintech AV-710
Takashi Iwaic9bce912005-05-24 13:41:03 +02001030 * Shuttle SN25P
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031
1032 model - Use the given board model, one of the following:
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +01001033 revo51, revo71, amp2000, prodigy71, prodigy71lt,
Takashi Iwai56255062006-11-09 16:47:26 +01001034 prodigy192, aureon51, aureon71, universe, ap192,
Takashi Iwai7a6c8ff2006-01-13 13:56:33 +01001035 k8x800, phase22, phase28, ms300, av710
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001037 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
Takashi Iwaic9bce912005-05-24 13:41:03 +02001039 Note: The supported board is detected by reading EEPROM or PCI
1040 SSID (if EEPROM isn't available). You can override the
1041 model by passing "model" module option in case that the
1042 driver isn't configured properly or you want to try another
1043 type for testing.
1044
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001045 Module snd-indigo
1046 -----------------
1047
1048 Module for Echoaudio Indigo
1049
1050 This module supports multiple cards.
1051 The driver requires the firmware loader support on kernel.
1052
1053 Module snd-indigodj
1054 -------------------
1055
1056 Module for Echoaudio Indigo DJ
1057
1058 This module supports multiple cards.
1059 The driver requires the firmware loader support on kernel.
1060
1061 Module snd-indigoio
1062 -------------------
1063
1064 Module for Echoaudio Indigo IO
1065
1066 This module supports multiple cards.
1067 The driver requires the firmware loader support on kernel.
1068
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 Module snd-intel8x0
1070 -------------------
1071
1072 Module for AC'97 motherboards from Intel and compatibles.
1073 * Intel i810/810E, i815, i820, i830, i84x, MX440
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001074 ICH5, ICH6, ICH7, ESB2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 * SiS 7012 (SiS 735)
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001076 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1077 CK8, CK8S, MCP501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078 * AMD AMD768, AMD8111
1079 * ALi m5455
1080
1081 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1082 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +02001083 See "AC97 Quirk Option" section below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084 buggy_irq - Enable workaround for buggy interrupts on some
Takashi Iwaia06147d2005-09-08 19:54:17 +02001085 motherboards (default yes on nForce chips,
1086 otherwise off)
1087 buggy_semaphore - Enable workaround for hardwares with buggy
1088 semaphores (e.g. on some ASUS laptops)
1089 (default off)
Takashi Iwai6c5cfd92006-11-28 17:18:25 +01001090 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1091 from the controller chip
1092 (0 = off, 1 = on, -1 = default)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001094 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
1096 Note: the latest driver supports auto-detection of chip clock.
1097 if you still encounter too fast playback, specify the clock
1098 explicitly via the module option "ac97_clock=41194".
1099
1100 Joystick/MIDI ports are not supported by this driver. If your
1101 motherboard has these devices, use the ns558 or snd-mpu401
1102 modules, respectively.
1103
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104 The power-management is supported.
1105
1106 Module snd-intel8x0m
1107 --------------------
1108
1109 Module for Intel ICH (i8x0) chipset MC97 modems.
Takashi Iwai89ac9c22006-01-24 10:36:57 +01001110 * Intel i810/810E, i815, i820, i830, i84x, MX440
1111 ICH5, ICH6, ICH7
1112 * SiS 7013 (SiS 735)
1113 * NVidia NForce, NForce2, NForce2s, NForce3
1114 * AMD AMD8111
1115 * ALi m5455
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116
1117 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1118
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001119 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120
1121 Note: The default index value of this module is -2, i.e. the first
1122 slot is excluded.
1123
Takashi Iwaia4efc232005-11-17 17:24:26 +01001124 The power-management is supported.
1125
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 Module snd-interwave
1127 --------------------
1128
1129 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1130 and other sound cards based on AMD InterWave (tm) chip.
1131
1132 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1133 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1134 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1135 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1136 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1137 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1138 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1139 effect - 1 = InterWave effects enable (default 0);
1140 requires 8 voices
1141
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001142 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143
1144 Module snd-interwave-stb
1145 ------------------------
1146
1147 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1148 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1149 circuit for extended control of bass, treble and master volume.
1150
1151 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1152 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1153 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1154 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1155 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1156 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1157 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1158 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1159 effect - 1 = InterWave effects enable (default 0);
1160 requires 8 voices
1161
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001162 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163
1164 Module snd-korg1212
1165 -------------------
1166
1167 Module for Korg 1212 IO PCI card
1168
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001169 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001171 Module snd-layla20
1172 ------------------
1173
1174 Module for Echoaudio Layla20
1175
1176 This module supports multiple cards.
1177 The driver requires the firmware loader support on kernel.
1178
1179 Module snd-layla24
1180 ------------------
1181
1182 Module for Echoaudio Layla24
1183
1184 This module supports multiple cards.
1185 The driver requires the firmware loader support on kernel.
1186
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187 Module snd-maestro3
1188 -------------------
1189
1190 Module for Allegro/Maestro3 chips
1191
1192 external_amp - enable external amp (enabled by default)
1193 amp_gpio - GPIO pin number for external amp (0-15) or
1194 -1 for default pin (8 for allegro, 1 for
1195 others)
1196
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001197 This module supports autoprobe and multiple chips.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198
1199 Note: the binding of amplifier is dependent on hardware.
1200 If there is no sound even though all channels are unmuted, try to
1201 specify other gpio connection via amp_gpio option.
1202 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1203 option.
1204
1205 The power-management is supported.
1206
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001207 Module snd-mia
1208 ---------------
1209
1210 Module for Echoaudio Mia
1211
1212 This module supports multiple cards.
1213 The driver requires the firmware loader support on kernel.
1214
Martin Langer1841f6132006-03-27 12:41:01 +02001215 Module snd-miro
1216 ---------------
1217
1218 Module for Miro soundcards: miroSOUND PCM 1 pro,
1219 miroSOUND PCM 12,
1220 miroSOUND PCM 20 Radio.
1221
1222 port - Port # (0x530,0x604,0xe80,0xf40)
1223 irq - IRQ # (5,7,9,10,11)
1224 dma1 - 1st dma # (0,1,3)
1225 dma2 - 2nd dma # (0,1)
1226 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1227 mpu_irq - MPU-401 irq # (5,7,9,10)
1228 fm_port - FM Port # (0x388)
1229 wss - enable WSS mode
1230 ide - enable onboard ide support
1231
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232 Module snd-mixart
1233 -----------------
1234
1235 Module for Digigram miXart8 sound cards.
1236
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001237 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238 Note: One miXart8 board will be represented as 4 alsa cards.
1239 See MIXART.txt for details.
1240
1241 When the driver is compiled as a module and the hotplug firmware
1242 is supported, the firmware data is loaded via hotplug automatically.
1243 Install the necessary firmware files in alsa-firmware package.
1244 When no hotplug fw loader is available, you need to load the
1245 firmware via mixartloader utility in alsa-tools package.
1246
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001247 Module snd-mona
1248 ---------------
1249
1250 Module for Echoaudio Mona
1251
1252 This module supports multiple cards.
1253 The driver requires the firmware loader support on kernel.
1254
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255 Module snd-mpu401
1256 -----------------
1257
1258 Module for MPU-401 UART devices.
1259
1260 port - port number or -1 (disable)
1261 irq - IRQ number or -1 (disable)
1262 pnp - PnP detection - 0 = disable, 1 = enable (default)
1263
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001264 This module supports multiple devices and PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265
1266 Module snd-mtpav
1267 ----------------
1268
1269 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1270 port).
1271
1272 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1273 irq - IRQ # for MTPAV (7,5, default=7)
1274 hwports - number of supported hardware ports, default=8.
1275
1276 Module supports only 1 card. This module has no enable option.
1277
Matthias Koenig68ab8012006-07-27 16:59:23 +02001278 Module snd-mts64
1279 ----------------
1280
1281 Module for Ego Systems (ESI) Miditerminal 4140
1282
1283 This module supports multiple devices.
1284 Requires parport (CONFIG_PARPORT).
1285
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286 Module snd-nm256
1287 ----------------
1288
1289 Module for NeoMagic NM256AV/ZX chips
1290
1291 playback_bufsize - max playback frame size in kB (4-128kB)
1292 capture_bufsize - max capture frame size in kB (4-128kB)
1293 force_ac97 - 0 or 1 (disabled by default)
1294 buffer_top - specify buffer top address
1295 use_cache - 0 or 1 (disabled by default)
1296 vaio_hack - alias buffer_top=0x25a800
1297 reset_workaround - enable AC97 RESET workaround for some laptops
Takashi Iwaid1f38cf2005-10-19 16:04:27 +02001298 reset_workaround2 - enable extended AC97 RESET workaround for some
1299 other laptops
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300
Takashi Iwai8a3fb4d2005-10-20 17:10:49 +02001301 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302
1303 The power-management is supported.
1304
1305 Note: on some notebooks the buffer address cannot be detected
1306 automatically, or causes hang-up during initialization.
Matt LaPlantefff92892006-10-03 22:47:42 +02001307 In such a case, specify the buffer top address explicitly via
1308 the buffer_top option.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309 For example,
1310 Sony F250: buffer_top=0x25a800
1311 Sony F270: buffer_top=0x272800
1312 The driver supports only ac97 codec. It's possible to force
1313 to initialize/use ac97 although it's not detected. In such a
1314 case, use force_ac97=1 option - but *NO* guarantee whether it
1315 works!
1316
1317 Note: The NM256 chip can be linked internally with non-AC97
1318 codecs. This driver supports only the AC97 codec, and won't work
1319 with machines with other (most likely CS423x or OPL3SAx) chips,
1320 even though the device is detected in lspci. In such a case, try
1321 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
Takashi Iwai62430082005-09-05 17:12:29 +02001322 but some doesn't have ISA PnP. You'll need to specify isapnp=0
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 and proper hardware parameters in the case without ISA PnP.
1324
1325 Note: some laptops need a workaround for AC97 RESET. For the
1326 known hardware like Dell Latitude LS and Sony PCG-F305, this
1327 workaround is enabled automatically. For other laptops with a
1328 hard freeze, you can try reset_workaround=1 option.
1329
Takashi Iwaid1f38cf2005-10-19 16:04:27 +02001330 Note: Dell Latitude CSx laptops have another problem regarding
1331 AC97 RESET. On these laptops, reset_workaround2 option is
1332 turned on as default. This option is worth to try if the
1333 previous reset_workaround option doesn't help.
1334
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 Note: This driver is really crappy. It's a porting from the
1336 OSS driver, which is a result of black-magic reverse engineering.
1337 The detection of codec will fail if the driver is loaded *after*
1338 X-server as described above. You might be able to force to load
1339 the module, but it may result in hang-up. Hence, make sure that
1340 you load this module *before* X if you encounter this kind of
1341 problem.
1342
1343 Module snd-opl3sa2
1344 ------------------
1345
1346 Module for Yamaha OPL3-SA2/SA3 sound cards.
1347
1348 port - control port # for OPL3-SA chip (0x370)
1349 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1350 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1351 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1352 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1353 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1354 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1355 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1356 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1357
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001358 This module supports multiple cards and ISA PnP. It does not support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1360
1361 The power-management is supported.
1362
1363 Module snd-opti92x-ad1848
1364 -------------------------
1365
1366 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1367 Module works with OAK Mozart cards as well.
1368
1369 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1370 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1371 fm_port - port # for OPL3 device (0x388)
1372 irq - IRQ # for WSS chip (5,7,9,10,11)
1373 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1374 dma1 - first DMA # for WSS chip (0,1,3)
1375
1376 This module supports only one card, autoprobe and PnP.
1377
1378 Module snd-opti92x-cs4231
1379 -------------------------
1380
1381 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1382
1383 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1384 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1385 fm_port - port # for OPL3 device (0x388)
1386 irq - IRQ # for WSS chip (5,7,9,10,11)
1387 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1388 dma1 - first DMA # for WSS chip (0,1,3)
1389 dma2 - second DMA # for WSS chip (0,1,3)
1390
1391 This module supports only one card, autoprobe and PnP.
1392
1393 Module snd-opti93x
1394 ------------------
1395
1396 Module for sound cards based on OPTi 82c93x chips.
1397
1398 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1399 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1400 fm_port - port # for OPL3 device (0x388)
1401 irq - IRQ # for WSS chip (5,7,9,10,11)
1402 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1403 dma1 - first DMA # for WSS chip (0,1,3)
1404 dma2 - second DMA # for WSS chip (0,1,3)
1405
1406 This module supports only one card, autoprobe and PnP.
1407
Markus Bollingere12229b2005-12-06 13:55:26 +01001408 Module snd-pcxhr
1409 ----------------
1410
1411 Module for Digigram PCXHR boards
1412
1413 This module supports multiple cards.
1414
Matthias Koenig757e1192007-01-25 13:15:05 +01001415 Module snd-portman2x4
1416 ---------------------
1417
1418 Module for Midiman Portman 2x4 parallel port MIDI interface
1419
1420 This module supports multiple cards.
1421
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422 Module snd-powermac (on ppc only)
1423 ---------------------------------
1424
1425 Module for PowerMac, iMac and iBook on-board soundchips
1426
1427 enable_beep - enable beep using PCM (enabled as default)
1428
1429 Module supports autoprobe a chip.
1430
1431 Note: the driver may have problems regarding endianess.
1432
1433 The power-management is supported.
1434
Takashi Iwai2c484df2005-06-30 18:54:04 +02001435 Module snd-pxa2xx-ac97 (on arm only)
1436 ------------------------------------
1437
1438 Module for AC97 driver for the Intel PXA2xx chip
1439
1440 For ARM architecture only.
1441
Takashi Iwaia4efc232005-11-17 17:24:26 +01001442 The power-management is supported.
1443
Peter Gruber109a9632006-03-27 13:10:28 +02001444 Module snd-riptide
1445 ------------------
1446
1447 Module for Conexant Riptide chip
1448
1449 joystick_port - Joystick port # (default: 0x200)
1450 mpu_port - MPU401 port # (default: 0x330)
1451 opl3_port - OPL3 port # (default: 0x388)
1452
1453 This module supports multiple cards.
1454 The driver requires the firmware loader support on kernel.
1455 You need to install the firmware file "riptide.hex" to the standard
1456 firmware path (e.g. /lib/firmware).
1457
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 Module snd-rme32
1459 ----------------
1460
1461 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1462 Prodif96 and Prodif Gold) sound cards.
1463
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001464 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465
1466 Module snd-rme96
1467 ----------------
1468
1469 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1470
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001471 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472
1473 Module snd-rme9652
1474 ------------------
1475
1476 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1477
1478 precise_ptr - Enable precise pointer (doesn't work reliably).
1479 (default = 0)
1480
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001481 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482
1483 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1484 module did formerly. It will allocate the buffers in advance
1485 when any RME9652 cards are found. To make the buffer
1486 allocation sure, load snd-page-alloc module in the early
Takashi Iwaib6a96912005-05-30 18:27:03 +02001487 stage of boot sequence. See "Early Buffer Allocation"
1488 section.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489
1490 Module snd-sa11xx-uda1341 (on arm only)
1491 ---------------------------------------
1492
1493 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1494
1495 Module supports only one card.
1496 Module has no enable and index options.
1497
Takashi Iwaia4efc232005-11-17 17:24:26 +01001498 The power-management is supported.
1499
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 Module snd-sb8
1501 --------------
1502
1503 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1504 SoundBlaster 2.0,
1505 SoundBlaster Pro
1506
1507 port - port # for SB DSP chip (0x220,0x240,0x260)
1508 irq - IRQ # for SB DSP chip (5,7,9,10)
1509 dma8 - DMA # for SB DSP chip (1,3)
1510
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001511 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512
Takashi Iwaia4efc232005-11-17 17:24:26 +01001513 The power-management is supported.
1514
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515 Module snd-sb16 and snd-sbawe
1516 -----------------------------
1517
1518 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1519 SoundBlaster AWE 32 (PnP),
1520 SoundBlaster AWE 64 PnP
1521
1522 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1523 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1524 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1525 (snd-sbawe module only)
1526 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1527 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1528 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1529 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1530 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1531 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1532
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001533 This module supports multiple cards, autoprobe and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001534
1535 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1536 disable 16bit DMA with dma16 = -1 module parameter.
1537 Also, all Sound Blaster 16 type cards can operate in 16-bit
1538 half duplex mode through 8-bit DMA channel by disabling their
1539 16-bit DMA channel.
1540
Takashi Iwaia4efc232005-11-17 17:24:26 +01001541 The power-management is supported.
1542
Linus Torvalds1da177e2005-04-16 15:20:36 -07001543 Module snd-sgalaxy
1544 ------------------
1545
1546 Module for Aztech Sound Galaxy sound card.
1547
1548 sbport - Port # for SB16 interface (0x220,0x240)
1549 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1550 irq - IRQ # (7,9,10,11)
1551 dma1 - DMA #
1552
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001553 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001554
Takashi Iwaia4efc232005-11-17 17:24:26 +01001555 The power-management is supported.
1556
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557 Module snd-sscape
1558 -----------------
1559
1560 Module for ENSONIQ SoundScape PnP cards.
1561
1562 port - Port # (PnP setup)
1563 irq - IRQ # (PnP setup)
1564 mpu_irq - MPU-401 IRQ # (PnP setup)
1565 dma - DMA # (PnP setup)
1566
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001567 This module supports multiple cards. ISA PnP must be enabled.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568 You need sscape_ctl tool in alsa-tools package for loading
1569 the microcode.
1570
1571 Module snd-sun-amd7930 (on sparc only)
1572 --------------------------------------
1573
1574 Module for AMD7930 sound chips found on Sparcs.
1575
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001576 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577
1578 Module snd-sun-cs4231 (on sparc only)
1579 -------------------------------------
1580
1581 Module for CS4231 sound chips found on Sparcs.
1582
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001583 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584
Takashi Iwai1bd9deb2005-06-30 18:26:20 +02001585 Module snd-sun-dbri (on sparc only)
1586 -----------------------------------
1587
1588 Module for DBRI sound chips found on Sparcs.
1589
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001590 This module supports multiple cards.
Takashi Iwai1bd9deb2005-06-30 18:26:20 +02001591
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592 Module snd-wavefront
1593 --------------------
1594
1595 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1596
1597 cs4232_pcm_port - Port # for CS4232 PCM interface.
1598 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1599 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1600 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1601 use_cs4232_midi - Use CS4232 MPU-401 interface
1602 (inaccessibly located inside your computer)
1603 ics2115_port - Port # for ICS2115
1604 ics2115_irq - IRQ # for ICS2115
1605 fm_port - FM OPL-3 Port #
1606 dma1 - DMA1 # for CS4232 PCM interface.
1607 dma2 - DMA2 # for CS4232 PCM interface.
1608 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1609
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001610 This module supports multiple cards and ISA PnP.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611
1612 Module snd-sonicvibes
1613 ---------------------
1614
1615 Module for S3 SonicVibes PCI sound cards.
1616 * PINE Schubert 32 PCI
1617
1618 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1619 - SoundCard must have onboard SRAM for this.
1620 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1621
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001622 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623
1624 Module snd-serial-u16550
1625 ------------------------
1626
1627 Module for UART16550A serial MIDI ports.
1628
1629 port - port # for UART16550A chip
1630 irq - IRQ # for UART16550A chip, -1 = poll mode
1631 speed - speed in bauds (9600,19200,38400,57600,115200)
1632 38400 = default
1633 base - base for divisor in bauds (57600,115200,230400,460800)
1634 115200 = default
1635 outs - number of MIDI ports in a serial port (1-4)
1636 1 = default
1637 adaptor - Type of adaptor.
1638 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1639 3 = MS-124W M/B, 4 = Generic
1640
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001641 This module supports multiple cards. This module does not support autoprobe
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642 thus the main port must be specified!!! Other options are optional.
1643
1644 Module snd-trident
1645 ------------------
1646
1647 Module for Trident 4DWave DX/NX sound cards.
1648 * Best Union Miss Melody 4DWave PCI
1649 * HIS 4DWave PCI
1650 * Warpspeed ONSpeed 4DWave PCI
1651 * AzTech PCI 64-Q3D
1652 * Addonics SV 750
1653 * CHIC True Sound 4Dwave
1654 * Shark Predator4D-PCI
1655 * Jaton SonicWave 4D
1656
1657 pcm_channels - max channels (voices) reserved for PCM
1658 wavetable_size - max wavetable size in kB (4-?kb)
1659
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001660 This module supports multiple cards and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001661
1662 The power-management is supported.
1663
1664 Module snd-usb-audio
1665 --------------------
1666
1667 Module for USB audio and USB MIDI devices.
1668
1669 vid - Vendor ID for the device (optional)
1670 pid - Product ID for the device (optional)
Thibault LE MEURe3113342006-03-14 11:44:53 +01001671 device_setup - Device specific magic number (optional)
1672 - Influence depends on the device
1673 - Default: 0x0000
Linus Torvalds1da177e2005-04-16 15:20:36 -07001674
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001675 This module supports multiple devices, autoprobe and hotplugging.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676
1677 Module snd-usb-usx2y
1678 --------------------
1679
1680 Module for Tascam USB US-122, US-224 and US-428 devices.
1681
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001682 This module supports multiple devices, autoprobe and hotplugging.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683
1684 Note: you need to load the firmware via usx2yloader utility included
1685 in alsa-tools and alsa-firmware packages.
1686
1687 Module snd-via82xx
1688 ------------------
1689
1690 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001691 8233A, 8233C, 8235, 8237 (south) bridge.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001692
1693 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1694 [VIA686A/686B only]
1695 joystick - Enable joystick (default off) [VIA686A/686B only]
1696 ac97_clock - AC'97 codec clock base (default 48000Hz)
1697 dxs_support - support DXS channels,
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001698 0 = auto (default), 1 = enable, 2 = disable,
1699 3 = 48k only, 4 = no VRA, 5 = enable any sample
1700 rate and different sample rates on different
1701 channels
1702 [VIA8233/C, 8235, 8237 only]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001703 ac97_quirk - AC'97 workaround for strange hardware
Takashi Iwai62430082005-09-05 17:12:29 +02001704 See "AC97 Quirk Option" section below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001705
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001706 This module supports one chip and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707
1708 Note: on some SMP motherboards like MSI 694D the interrupts might
1709 not be generated properly. In such a case, please try to
1710 set the SMP (or MPS) version on BIOS to 1.1 instead of
1711 default value 1.4. Then the interrupt number will be
1712 assigned under 15. You might also upgrade your BIOS.
1713
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001714 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715 channels as the first PCM. On these channels, up to 4
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001716 streams can be played at the same time, and the controller
1717 can perform sample rate conversion with separate rates for
1718 each channel.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 As default (dxs_support = 0), 48k fixed rate is chosen
1720 except for the known devices since the output is often
1721 noisy except for 48k on some mother boards due to the
1722 bug of BIOS.
Sergey Vlasov2d7eb7c2005-04-11 15:04:33 +02001723 Please try once dxs_support=5 and if it works on other
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1725 know the PCI subsystem vendor/device id's (output of
1726 "lspci -nv").
Takashi Iwaicdc27f32005-05-27 11:11:02 +02001727 If dxs_support=5 does not work, try dxs_support=4; if it
1728 doesn't work too, try dxs_support=1. (dxs_support=1 is
Takashi Iwai62430082005-09-05 17:12:29 +02001729 usually for old motherboards. The correct implemented
Takashi Iwaicdc27f32005-05-27 11:11:02 +02001730 board should work with 4 or 5.) If it still doesn't
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731 work and the default setting is ok, dxs_support=3 is the
1732 right choice. If the default setting doesn't work at all,
1733 try dxs_support=2 to disable the DXS channels.
1734 In any cases, please let us know the result and the
Takashi Iwai62430082005-09-05 17:12:29 +02001735 subsystem vendor/device ids. See "Links and Addresses"
1736 below.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737
1738 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
Takashi Iwai62430082005-09-05 17:12:29 +02001739 additionally. The mpu_port option is for VIA686 chips only.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740
Takashi Iwaia4efc232005-11-17 17:24:26 +01001741 The power-management is supported.
1742
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 Module snd-via82xx-modem
1744 ------------------------
1745
1746 Module for VIA82xx AC97 modem
1747
1748 ac97_clock - AC'97 codec clock base (default 48000Hz)
1749
Clemens Ladischb7fe4622005-10-04 08:46:51 +02001750 This module supports one card and autoprobe.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751
1752 Note: The default index value of this module is -2, i.e. the first
1753 slot is excluded.
1754
Takashi Iwaia4efc232005-11-17 17:24:26 +01001755 The power-management is supported.
1756
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 Module snd-virmidi
1758 ------------------
1759
1760 Module for virtual rawmidi devices.
1761 This module creates virtual rawmidi devices which communicate
1762 to the corresponding ALSA sequencer ports.
1763
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001764 midi_devs - MIDI devices # (1-4, default=4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001766 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767
1768 Module snd-vx222
1769 ----------------
1770
1771 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1772
1773 mic - Enable Microphone on V222 Mic (NYI)
1774 ibl - Capture IBL size. (default = 0, minimum size)
1775
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001776 This module supports multiple cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777
1778 When the driver is compiled as a module and the hotplug firmware
1779 is supported, the firmware data is loaded via hotplug automatically.
1780 Install the necessary firmware files in alsa-firmware package.
1781 When no hotplug fw loader is available, you need to load the
1782 firmware via vxloader utility in alsa-tools package. To invoke
1783 vxloader automatically, add the following to /etc/modprobe.conf
1784
1785 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1786
1787 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1788 /etc/modules.conf, instead.)
1789 IBL size defines the interrupts period for PCM. The smaller size
1790 gives smaller latency but leads to more CPU consumption, too.
1791 The size is usually aligned to 126. As default (=0), the smallest
1792 size is chosen. The possible IBL values can be found in
1793 /proc/asound/cardX/vx-status proc file.
1794
Takashi Iwaia4efc232005-11-17 17:24:26 +01001795 The power-management is supported.
1796
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 Module snd-vxpocket
1798 -------------------
1799
Takashi Iwai6d00a3122005-06-30 13:40:51 +02001800 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801
1802 ibl - Capture IBL size. (default = 0, minimum size)
1803
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001804 This module supports multiple cards. The module is compiled only when
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 PCMCIA is supported on kernel.
1806
Takashi Iwai62430082005-09-05 17:12:29 +02001807 With the older 2.6.x kernel, to activate the driver via the card
1808 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1809 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1810 longer require a config file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811
1812 When the driver is compiled as a module and the hotplug firmware
1813 is supported, the firmware data is loaded via hotplug automatically.
1814 Install the necessary firmware files in alsa-firmware package.
1815 When no hotplug fw loader is available, you need to load the
1816 firmware via vxloader utility in alsa-tools package.
1817
1818 About capture IBL, see the description of snd-vx222 module.
1819
Takashi Iwaied7cbe32006-05-11 11:30:10 +02001820 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
Takashi Iwai62430082005-09-05 17:12:29 +02001821 ALSA 1.0.10.
1822
Takashi Iwaia4efc232005-11-17 17:24:26 +01001823 The power-management is supported.
1824
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825 Module snd-ymfpci
1826 -----------------
1827
1828 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1829
1830 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1831 1 (auto-detect for YMF744/754 only)
1832 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1833 1 (auto-detect for YMF744/754 only)
1834 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1835 1 (auto-detect)
1836 rear_switch - enable shared rear/line-in switch (bool)
1837
Clemens Ladisch0ef797c2005-11-21 07:30:20 +01001838 This module supports autoprobe and multiple chips.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001839
1840 The power-management is supported.
1841
1842 Module snd-pdaudiocf
1843 --------------------
1844
1845 Module for Sound Core PDAudioCF sound card.
1846
Takashi Iwaia4efc232005-11-17 17:24:26 +01001847 The power-management is supported.
1848
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849
Takashi Iwai62430082005-09-05 17:12:29 +02001850AC97 Quirk Option
1851=================
1852
1853The ac97_quirk option is used to enable/override the workaround for
1854specific devices on drivers for on-board AC'97 controllers like
1855snd-intel8x0. Some hardware have swapped output pins between Master
1856and Headphone, or Surround (thanks to confusion of AC'97
1857specifications from version to version :-)
1858
1859The driver provides the auto-detection of known problematic devices,
1860but some might be unknown or wrongly detected. In such a case, pass
1861the proper value with this option.
1862
1863The following strings are accepted:
1864 - default Don't override the default setting
Takashi Iwai10e4097f2005-11-17 11:04:55 +01001865 - none Disable the quirk
Takashi Iwai62430082005-09-05 17:12:29 +02001866 - hp_only Bind Master and Headphone controls as a single control
1867 - swap_hp Swap headphone and master controls
1868 - swap_surround Swap master and surround controls
1869 - ad_sharing For AD1985, turn on OMS bit and use headphone
1870 - alc_jack For ALC65x, turn on the jack sense mode
1871 - inv_eapd Inverted EAPD implementation
1872 - mute_led Bind EAPD bit for turning on/off mute LED
1873
1874For backward compatibility, the corresponding integer value -1, 0,
1875... are accepted, too.
1876
1877For example, if "Master" volume control has no effect on your device
1878but only "Headphone" does, pass ac97_quirk=hp_only module option.
1879
1880
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881Configuring Non-ISAPNP Cards
1882============================
1883
1884When the kernel is configured with ISA-PnP support, the modules
1885supporting the isapnp cards will have module options "isapnp".
1886If this option is set, *only* the ISA-PnP devices will be probed.
1887For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1888together with the proper i/o and irq configuration.
1889
1890When the kernel is configured without ISA-PnP support, isapnp option
1891will be not built in.
1892
1893
1894Module Autoloading Support
1895==========================
1896
1897The ALSA drivers can be loaded automatically on demand by defining
1898module aliases. The string 'snd-card-%1' is requested for ALSA native
1899devices where %i is sound card number from zero to seven.
1900
1901To auto-load an ALSA driver for OSS services, define the string
1902'sound-slot-%i' where %i means the slot number for OSS, which
1903corresponds to the card index of ALSA. Usually, define this
Tobias Klauserd533f672005-09-10 00:26:46 -07001904as the same card module.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905
1906An example configuration for a single emu10k1 card is like below:
1907----- /etc/modprobe.conf
1908alias snd-card-0 snd-emu10k1
1909alias sound-slot-0 snd-emu10k1
1910----- /etc/modprobe.conf
1911
1912The available number of auto-loaded sound cards depends on the module
1913option "cards_limit" of snd module. As default it's set to 1.
1914To enable the auto-loading of multiple cards, specify the number of
1915sound cards in that option.
1916
1917When multiple cards are available, it'd better to specify the index
1918number for each card via module option, too, so that the order of
1919cards is kept consistent.
1920
1921An example configuration for two sound cards is like below:
1922
1923----- /etc/modprobe.conf
1924# ALSA portion
1925options snd cards_limit=2
1926alias snd-card-0 snd-interwave
1927alias snd-card-1 snd-ens1371
1928options snd-interwave index=0
1929options snd-ens1371 index=1
1930# OSS/Free portion
1931alias sound-slot-0 snd-interwave
1932alias sound-slot-1 snd-ens1371
Matt LaPlante2fe0ae72006-10-03 22:50:39 +02001933----- /etc/modprobe.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -07001934
1935In this example, the interwave card is always loaded as the first card
1936(index 0) and ens1371 as the second (index 1).
1937
1938
1939ALSA PCM devices to OSS devices mapping
1940=======================================
1941
1942/dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1943/dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1944/dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1945/dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1946/dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1947/dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1948/dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1949/dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1950/dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1951
1952The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1953sound card number and second means device number. The ALSA devices
1954have either 'c' or 'p' suffix indicating the direction, capture and
1955playback, respectively.
1956
1957Please note that the device mapping above may be varied via the module
1958options of snd-pcm-oss module.
1959
1960
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961Proc interfaces (/proc/asound)
1962==============================
1963
1964/proc/asound/card#/pcm#[cp]/oss
1965-------------------------------
1966 String "erase" - erase all additional informations about OSS applications
1967 String "<app_name> <fragments> <fragment_size> [<options>]"
1968
1969 <app_name> - name of application with (higher priority) or without path
1970 <fragments> - number of fragments or zero if auto
1971 <fragment_size> - size of fragment in bytes or zero if auto
1972 <options> - optional parameters
1973 - disable the application tries to open a pcm device for
1974 this channel but does not want to use it.
1975 (Cause a bug or mmap needs)
1976 It's good for Quake etc...
1977 - direct don't use plugins
1978 - block force block mode (rvplayer)
1979 - non-block force non-block mode
1980 - whole-frag write only whole fragments (optimization affecting
1981 playback only)
1982 - no-silence do not fill silence ahead to avoid clicks
Takashi Iwai10f69f92005-09-08 13:48:34 +02001983 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1984 instead of filled blocks
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985
1986 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1987 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1988 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1989
1990
Takashi Iwaib6a96912005-05-30 18:27:03 +02001991Early Buffer Allocation
1992=======================
1993
1994Some drivers (e.g. hdsp) require the large contiguous buffers, and
1995sometimes it's too late to find such spaces when the driver module is
1996actually loaded due to memory fragmentation. You can pre-allocate the
1997PCM buffers by loading snd-page-alloc module and write commands to its
1998proc file in prior, for example, in the early boot stage like
1999/etc/init.d/*.local scripts.
2000
2001Reading the proc file /proc/drivers/snd-page-alloc shows the current
2002usage of page allocation. In writing, you can send the following
2003commands to the snd-page-alloc driver:
2004
2005 - add VENDOR DEVICE MASK SIZE BUFFERS
2006
2007 VENDOR and DEVICE are PCI vendor and device IDs. They take
2008 integer numbers (0x prefix is needed for the hex).
2009 MASK is the PCI DMA mask. Pass 0 if not restricted.
2010 SIZE is the size of each buffer to allocate. You can pass
2011 k and m suffix for KB and MB. The max number is 16MB.
2012 BUFFERS is the number of buffers to allocate. It must be greater
2013 than 0. The max number is 4.
2014
2015 - erase
2016
2017 This will erase the all pre-allocated buffers which are not in
2018 use.
2019
2020
Takashi Iwai62430082005-09-05 17:12:29 +02002021Links and Addresses
2022===================
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023
2024 ALSA project homepage
2025 http://www.alsa-project.org
2026
Takashi Iwai62430082005-09-05 17:12:29 +02002027 ALSA Bug Tracking System
2028 https://bugtrack.alsa-project.org/bugs/
2029
2030 ALSA Developers ML
2031 mailto:alsa-devel@lists.sourceforge.net