| blob | e5bfb0f7ff38983e1272513dbb7d767560c59b5f |
2 Advanced Linux Sound Architecture - Driver
3 ==========================================
4 Configuration guide
7 Kernel Configuration
8 ====================
10 To enable ALSA support you need at least to build the kernel with
11 primary sound card support (CONFIG_SOUND). Since ALSA can emulate OSS,
12 you don't have to choose any of the OSS modules.
14 Enable "OSS API emulation" (CONFIG_SND_OSSEMUL) and both OSS mixer and
15 PCM supports if you want to run OSS applications with ALSA.
17 If you want to support the WaveTable functionality on cards such as
18 SB Live! then you need to enable "Sequencer support"
19 (CONFIG_SND_SEQUENCER).
21 To make ALSA debug messages more verbose, enable the "Verbose printk"
22 and "Debug" options. To check for memory leaks, turn on "Debug memory"
23 too. "Debug detection" will add checks for the detection of cards.
25 Please 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
27 using isapnptools.
30 Creating ALSA devices
31 =====================
33 This depends on your distribution, but normally you use the /dev/MAKEDEV
34 script to create the necessary device nodes. On some systems you use a
35 script named 'snddevices'.
38 Module parameters
39 =================
41 The user can load modules with options. If the module supports more than
42 one card and you have more than one card of the same type then you can
43 specify multiple values for the option separated by commas.
45 Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
47 Module snd
48 ----------
50 The core ALSA module. It is used by all ALSA card drivers.
51 It takes the following options which have global effects.
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
67 Module snd-pcm-oss
68 ------------------
70 The PCM OSS emulation module.
71 This module takes options which change the mapping of devices.
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
78 - Don't block opening busy PCM devices. Default: 1
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".
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).
91 Module snd-rawmidi
92 ------------------
94 This module takes options which change the mapping of devices.
95 similar to those of the snd-pcm-oss module.
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
102 Common parameters for top sound card modules
103 --------------------------------------------
105 Each of top level sound card module takes the following options.
107 index - index (slot #) of sound card
108 - Values: 0 through 31 or negative
109 - 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
123 Module snd-adlib
124 ----------------
126 Module for AdLib FM cards.
128 port - port # for OPL chip
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.
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:
139 Port Client name Port name
140 64:0 OPL2 FM synth OPL2 FM Port
142 Load the std.sb and drums.sb patches also supplied by sbiload:
144 sbiload -p 64:0 std.sb drums.sb
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:
149 aplaymidi -p 64:0 foo.mid
151 Module snd-ad1816a
152 ------------------
154 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
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)
163 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
165 This module supports multiple cards, autoprobe and PnP.
167 Module snd-ad1848
168 -----------------
170 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
172 port - port # for AD1848 chip
173 irq - IRQ # for AD1848 chip
174 dma1 - DMA # for AD1848 chip (0,1,3)
176 This module supports multiple cards. It does not support autoprobe
177 thus main port must be specified!!! Other ports are optional.
179 The power-management is supported.
181 Module snd-ad1889
182 -----------------
184 Module for Analog Devices AD1889 chips.
186 ac97_quirk - AC'97 workaround for strange hardware
187 See the description of intel8x0 module for details.
189 This module supports multiple cards.
191 Module snd-ali5451
192 ------------------
194 Module for ALi M5451 PCI chip.
196 pcm_channels - Number of hardware channels assigned for PCM
197 spdif - Support SPDIF I/O
198 - Default: disabled
200 This module supports one chip and autoprobe.
202 The power-management is supported.
204 Module snd-als100
205 -----------------
207 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
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)
217 This module supports multiple cards, autoprobe and PnP.
219 The power-management is supported.
221 Module snd-als300
222 -----------------
224 Module for Avance Logic ALS300 and ALS300+
226 This module supports multiple cards.
228 The power-management is supported.
230 Module snd-als4000
231 ------------------
233 Module for sound cards based on Avance Logic ALS4000 PCI chip.
235 joystick_port - port # for legacy joystick support.
236 0 = disabled (default), 1 = auto-detect
238 This module supports multiple cards, autoprobe and PnP.
240 The power-management is supported.
242 Module snd-atiixp
243 -----------------
245 Module for ATI IXP 150/200/250/400 AC97 controllers.
247 ac97_clock - AC'97 clock (default = 48000)
248 ac97_quirk - AC'97 workaround for strange hardware
249 See "AC97 Quirk Option" section below.
250 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
252 This module supports one card and autoprobe.
254 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.
259 The power-management is supported.
261 Module snd-atiixp-modem
262 -----------------------
264 Module for ATI IXP 150/200/250 AC97 modem controllers.
266 This module supports one card and autoprobe.
268 Note: The default index value of this module is -2, i.e. the first
269 slot is excluded.
271 The power-management is supported.
273 Module snd-au8810, snd-au8820, snd-au8830
274 -----------------------------------------
276 Module for Aureal Vortex, Vortex2 and Advantage device.
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)
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.
295 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
296 control correctly. If you have problems regarding this, try
297 another ALSA compliant mixer (alsamixer works).
299 Module snd-azt2320
300 ------------------
302 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
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)
313 This module supports multiple cards, PnP and autoprobe.
315 The power-management is supported.
317 Module snd-azt3328
318 ------------------
320 Module for sound cards based on Aztech AZF3328 PCI chip.
322 joystick - Enable joystick (default off)
324 This module supports multiple cards.
326 Module snd-bt87x
327 ----------------
329 Module for video cards based on Bt87x chips.
331 digital_rate - Override the default digital rate (Hz)
332 load_all - Load the driver even if the card model isn't known
334 This module supports multiple cards.
336 Note: The default index value of this module is -2, i.e. the first
337 slot is excluded.
339 Module snd-ca0106
340 -----------------
342 Module for Creative Audigy LS and SB Live 24bit
344 This module supports multiple cards.
347 Module snd-cmi8330
348 ------------------
350 Module for sound cards based on C-Media CMI8330 ISA chips.
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)
360 This module supports multiple cards and autoprobe.
362 The power-management is supported.
364 Module snd-cmipci
365 -----------------
367 Module for C-Media CMI8338 and 8738 PCI sound cards.
369 mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
370 1 = integrated PCI port,
371 0 = disable (default)
372 fm_port - 0x388 (default), 0 = disable (default)
373 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
374 (default = 1)
375 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
377 This module supports autoprobe and multiple cards.
379 The power-management is supported.
381 Module snd-cs4231
382 -----------------
384 Module for sound cards based on CS4231 ISA chips.
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
393 This module supports multiple cards. This module does not support autoprobe
394 thus main port must be specified!!! Other ports are optional.
396 The power-management is supported.
398 Module snd-cs4232
399 -----------------
401 Module for sound cards based on CS4232/CS4232A ISA chips.
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)
413 This module supports multiple cards. This module does not support autoprobe
414 thus main port must be specified!!! Other ports are optional.
416 The power-management is supported.
418 Module snd-cs4236
419 -----------------
421 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
422 CS4238B/CS4239 ISA chips.
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)
434 This module supports multiple cards. This module does not support autoprobe
435 (if ISA PnP is not used) thus main port and control port must be
436 specified!!! Other ports are optional.
438 The power-management is supported.
440 Module snd-cs4281
441 -----------------
443 Module for Cirrus Logic CS4281 soundchip.
445 dual_codec - Secondary codec ID (0 = disable, default)
447 This module supports multiple cards.
449 The power-management is supported.
451 Module snd-cs46xx
452 -----------------
454 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
455 CS4624/CS4630/CS4280 PCI chips.
457 external_amp - Force to enable external amplifier.
458 thinkpad - Force to enable Thinkpad's CLKRUN control.
459 mmap_valid - Support OSS mmap mode (default = 0).
461 This module supports multiple cards and autoprobe.
462 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.
466 The power-management is supported.
468 Module snd-cs5535audio
469 ----------------------
471 Module for multifunction CS5535 companion PCI device
473 This module supports multiple cards.
475 Module snd-dt019x
476 -----------------
478 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
479 only)
481 port - Port # (PnP setup)
482 mpu_port - Port # for MPU-401 (PnP setup)
483 fm_port - Port # for FM OPL-3 (PnP setup)
484 irq - IRQ # (PnP setup)
485 mpu_irq - IRQ # for MPU-401 (PnP setup)
486 dma8 - DMA # (PnP setup)
488 This module supports multiple cards. This module is enabled only with
489 ISA PnP support.
491 The power-management is supported.
493 Module snd-dummy
494 ----------------
496 Module for the dummy sound card. This "card" doesn't do any output
497 or input, but you may use this module for any application which
498 requires a sound card (like RealPlayer).
500 The power-management is supported.
502 Module snd-emu10k1
503 ------------------
505 Module for EMU10K1/EMU10k2 based PCI sound cards.
506 * Sound Blaster Live!
507 * Sound Blaster PCI 512
508 * Emu APS (partially supported)
509 * Sound Blaster Audigy
511 extin - bitmap of available external inputs for FX8010 (see bellow)
512 extout - bitmap of available external outputs for FX8010 (see bellow)
513 seq_ports - allocated sequencer ports (4 by default)
514 max_synth_voices - limit of voices used for wavetable (64 by default)
515 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
516 given in MB unit. Default value is 128.
517 enable_ir - enable IR
519 This module supports multiple cards and autoprobe.
521 Input & Output configurations [extin/extout]
522 * Creative Card wo/Digital out [0x0003/0x1f03]
523 * Creative Card w/Digital out [0x0003/0x1f0f]
524 * Creative Card w/Digital CD in [0x000f/0x1f0f]
525 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
526 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
527 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
528 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
529 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
530 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
531 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
532 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
533 * Creative Card all ins and outs [0x3fff/0x7fff]
535 The power-management is supported.
537 Module snd-emu10k1x
538 -------------------
540 Module for Creative Emu10k1X (SB Live Dell OEM version)
542 This module supports multiple cards.
544 Module snd-ens1370
545 ------------------
547 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
548 * SoundBlaster PCI 64
549 * SoundBlaster PCI 128
551 joystick - Enable joystick (default off)
553 This module supports multiple cards and autoprobe.
555 The power-management is supported.
557 Module snd-ens1371
558 ------------------
560 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
561 * SoundBlaster PCI 64
562 * SoundBlaster PCI 128
563 * SoundBlaster Vibra PCI
565 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
566 0 = disable (default), 1 = auto-detect
568 This module supports multiple cards and autoprobe.
570 The power-management is supported.
572 Module snd-es968
573 ----------------
575 Module for sound cards based on ESS ES968 chip (PnP only).
577 port - port # for ES968 (SB8) chip (PnP setup)
578 irq - IRQ # for ES968 (SB8) chip (PnP setup)
579 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
581 This module supports multiple cards, PnP and autoprobe.
583 The power-management is supported.
585 Module snd-es1688
586 -----------------
588 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
590 port - port # for ES-1688 chip (0x220,0x240,0x260)
591 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
592 irq - IRQ # for ES-1688 chip (5,7,9,10)
593 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
594 dma8 - DMA # for ES-1688 chip (0,1,3)
596 This module supports multiple cards and autoprobe (without MPU-401 port).
598 Module snd-es18xx
599 -----------------
601 Module for ESS AudioDrive ES-18xx sound cards.
603 port - port # for ES-18xx chip (0x220,0x240,0x260)
604 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
605 fm_port - port # for FM (optional, not used)
606 irq - IRQ # for ES-18xx chip (5,7,9,10)
607 dma1 - first DMA # for ES-18xx chip (0,1,3)
608 dma2 - first DMA # for ES-18xx chip (0,1,3)
609 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
611 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
612 port if native ISA PnP routines are not used).
613 When dma2 is equal with dma1, the driver works as half-duplex.
615 The power-management is supported.
617 Module snd-es1938
618 -----------------
620 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
622 This module supports multiple cards and autoprobe.
624 The power-management is supported.
626 Module snd-es1968
627 -----------------
629 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
631 total_bufsize - total buffer size in kB (1-4096kB)
632 pcm_substreams_p - playback channels (1-8, default=2)
633 pcm_substreams_c - capture channels (1-8, default=0)
634 clock - clock (0 = auto-detection)
635 use_pm - support the power-management (0 = off, 1 = on,
636 2 = auto (default))
637 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
638 joystick - enable joystick (default off)
640 This module supports multiple cards and autoprobe.
642 The power-management is supported.
644 Module snd-fm801
645 ----------------
647 Module for ForteMedia FM801 based PCI sound cards.
649 tea575x_tuner - Enable TEA575x tuner
650 - 1 = MediaForte 256-PCS
651 - 2 = MediaForte 256-PCPR
652 - 3 = MediaForte 64-PCR
653 - High 16-bits are video (radio) device number + 1
654 - example: 0x10002 (MediaForte 256-PCPR, device 1)
656 This module supports multiple cards and autoprobe.
658 The power-management is supported.
660 Module snd-gusclassic
661 ---------------------
663 Module for Gravis UltraSound Classic sound card.
665 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
666 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
667 dma1 - DMA # for GF1 chip (1,3,5,6,7)
668 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
669 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
670 voices - GF1 voices limit (14-32)
671 pcm_voices - reserved PCM voices
673 This module supports multiple cards and autoprobe.
675 Module snd-gusextreme
676 ---------------------
678 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
680 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
681 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
682 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
683 irq - IRQ # for ES-1688 chip (5,7,9,10)
684 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
685 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
686 dma8 - DMA # for ES-1688 chip (0,1,3)
687 dma1 - DMA # for GF1 chip (1,3,5,6,7)
688 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
689 voices - GF1 voices limit (14-32)
690 pcm_voices - reserved PCM voices
692 This module supports multiple cards and autoprobe (without MPU-401 port).
694 Module snd-gusmax
695 -----------------
697 Module for Gravis UltraSound MAX sound card.
699 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
700 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
701 dma1 - DMA # for GF1 chip (1,3,5,6,7)
702 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
703 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
704 voices - GF1 voices limit (14-32)
705 pcm_voices - reserved PCM voices
707 This module supports multiple cards and autoprobe.
709 Module snd-hda-intel
710 --------------------
712 Module for Intel HD Audio (ICH6, ICH6M, ICH7), ATI SB450,
713 VIA VT8251/VT8237A
715 model - force the model name
716 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
717 single_cmd - Use single immediate commands to communicate with
718 codecs (for debugging only)
720 This module supports one card and autoprobe.
722 Each codec may have a model table for different configurations.
723 If your machine isn't listed there, the default (usually minimal)
724 configuration is set up. You can pass "model=<name>" option to
725 specify a certain model in such a case. There are different
726 models depending on the codec chip.
728 Model name Description
729 ---------- -----------
730 ALC880
731 3stack 3-jack in back and a headphone out
732 3stack-digout 3-jack in back, a HP out and a SPDIF out
733 5stack 5-jack in back, 2-jack in front
734 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
735 6stack 6-jack in back, 2-jack in front
736 6stack-digout 6-jack with a SPDIF out
737 w810 3-jack
738 z71v 3-jack (HP shared SPDIF)
739 asus 3-jack
740 uniwill 3-jack
741 F1734 2-jack
742 lg LG laptop (m1 express dual)
743 lg-lw LG LW20 laptop
744 test for testing/debugging purpose, almost all controls can be
745 adjusted. Appearing only when compiled with
746 $CONFIG_SND_DEBUG=y
747 auto auto-config reading BIOS (default)
749 ALC260
750 hp HP machines
751 fujitsu Fujitsu S7020
752 acer Acer TravelMate
753 basic fixed pin assignment (old default model)
754 auto auto-config reading BIOS (default)
756 ALC262
757 fujitsu Fujitsu Laptop
758 basic fixed pin assignment w/o SPDIF
759 auto auto-config reading BIOS (default)
761 ALC882/883/885
762 3stack-dig 3-jack with SPDIF I/O
763 6stck-dig 6-jack digital with SPDIF I/O
764 auto auto-config reading BIOS (default)
766 ALC861
767 3stack 3-jack
768 3stack-dig 3-jack with SPDIF I/O
769 6stack-dig 6-jack with SPDIF I/O
770 auto auto-config reading BIOS (default)
772 CMI9880
773 minimal 3-jack in back
774 min_fp 3-jack in back, 2-jack in front
775 full 6-jack in back, 2-jack in front
776 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
777 allout 5-jack in back, 2-jack in front, SPDIF out
778 auto auto-config reading BIOS (default)
780 AD1981
781 basic 3-jack (default)
782 hp HP nx6320
783 thinkpad Lenovo Thinkpad T60/X60/Z60
785 AD1986A
786 6stack 6-jack, separate surrounds (default)
787 3stack 3-stack, shared surrounds
788 laptop 2-channel only (FSC V2060, Samsung M50)
789 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
791 AD1988
792 6stack 6-jack
793 6stack-dig ditto with SPDIF
794 3stack 3-jack
795 3stack-dig ditto with SPDIF
796 laptop 3-jack with hp-jack automute
797 laptop-dig ditto with SPDIF
798 auto auto-confgi reading BIOS (default)
800 STAC7661(?)
801 vaio Setup for VAIO FE550G/SZ110
803 If the default configuration doesn't work and one of the above
804 matches with your device, report it together with the PCI
805 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
806 ML (see the section "Links and Addresses").
808 Note 2: If you get click noises on output, try the module option
809 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
810 register value without FIFO size correction as the current
811 DMA pointer. position_fix=2 will make the driver to use
812 the position buffer instead of reading SD_LPIB register.
813 (Usually SD_LPLIB register is more accurate than the
814 position buffer.)
816 NB: If you get many "azx_get_response timeout" messages at
817 loading, it's likely a problem of interrupts (e.g. ACPI irq
818 routing). Try to boot with options like "pci=noacpi". Also, you
819 can try "single_cmd=1" module option. This will switch the
820 communication method between HDA controller and codecs to the
821 single immediate commands instead of CORB/RIRB. Basically, the
822 single command mode is provided only for BIOS, and you won't get
823 unsolicited events, too. But, at least, this works independently
824 from the irq. Remember this is a last resort, and should be
825 avoided as much as possible...
827 The power-management is supported.
829 Module snd-hdsp
830 ---------------
832 Module for RME Hammerfall DSP audio interface(s)
834 This module supports multiple cards.
836 Note: The firmware data can be automatically loaded via hotplug
837 when CONFIG_FW_LOADER is set. Otherwise, you need to load
838 the firmware via hdsploader utility included in alsa-tools
839 package.
840 The firmware data is found in alsa-firmware package.
842 Note: snd-page-alloc module does the job which snd-hammerfall-mem
843 module did formerly. It will allocate the buffers in advance
844 when any HDSP cards are found. To make the buffer
845 allocation sure, load snd-page-alloc module in the early
846 stage of boot sequence. See "Early Buffer Allocation"
847 section.
849 Module snd-hdspm
850 ----------------
852 Module for RME HDSP MADI board.
854 precise_ptr - Enable precise pointer, or disable.
855 line_outs_monitor - Send playback streams to analog outs by default.
856 enable_monitor - Enable Analog Out on Channel 63/64 by default.
858 See hdspm.txt for details.
860 Module snd-ice1712
861 ------------------
863 Module for Envy24 (ICE1712) based PCI sound cards.
864 * MidiMan M Audio Delta 1010
865 * MidiMan M Audio Delta 1010LT
866 * MidiMan M Audio Delta DiO 2496
867 * MidiMan M Audio Delta 66
868 * MidiMan M Audio Delta 44
869 * MidiMan M Audio Delta 410
870 * MidiMan M Audio Audiophile 2496
871 * TerraTec EWS 88MT
872 * TerraTec EWS 88D
873 * TerraTec EWX 24/96
874 * TerraTec DMX 6Fire
875 * TerraTec Phase 88
876 * Hoontech SoundTrack DSP 24
877 * Hoontech SoundTrack DSP 24 Value
878 * Hoontech SoundTrack DSP 24 Media 7.1
879 * Event Electronics, EZ8
880 * Digigram VX442
881 * Lionstracs, Mediastaton
883 model - Use the given board model, one of the following:
884 delta1010, dio2496, delta66, delta44, audiophile, delta410,
885 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
886 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
887 phase88, mediastation
888 omni - Omni I/O support for MidiMan M-Audio Delta44/66
889 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transciever)
890 in msec resolution, default value is 500 (0.5 sec)
892 This module supports multiple cards and autoprobe. Note: The consumer part
893 is not used with all Envy24 based cards (for example in the MidiMan Delta
894 serie).
896 Note: The supported board is detected by reading EEPROM or PCI
897 SSID (if EEPROM isn't available). You can override the
898 model by passing "model" module option in case that the
899 driver isn't configured properly or you want to try another
900 type for testing.
902 Module snd-ice1724
903 ------------------
905 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
906 * MidiMan M Audio Revolution 5.1
907 * MidiMan M Audio Revolution 7.1
908 * AMP Ltd AUDIO2000
909 * TerraTec Aureon 5.1 Sky
910 * TerraTec Aureon 7.1 Space
911 * TerraTec Aureon 7.1 Universe
912 * TerraTec Phase 22
913 * TerraTec Phase 28
914 * AudioTrak Prodigy 7.1
915 * AudioTrak Prodigy 7.1LT
916 * AudioTrak Prodigy 192
917 * Pontis MS300
918 * Albatron K8X800 Pro II
919 * Chaintech ZNF3-150
920 * Chaintech ZNF3-250
921 * Chaintech 9CJS
922 * Chaintech AV-710
923 * Shuttle SN25P
925 model - Use the given board model, one of the following:
926 revo51, revo71, amp2000, prodigy71, prodigy71lt,
927 prodigy192, aureon51, aureon71, universe,
928 k8x800, phase22, phase28, ms300, av710
930 This module supports multiple cards and autoprobe.
932 Note: The supported board is detected by reading EEPROM or PCI
933 SSID (if EEPROM isn't available). You can override the
934 model by passing "model" module option in case that the
935 driver isn't configured properly or you want to try another
936 type for testing.
938 Module snd-intel8x0
939 -------------------
941 Module for AC'97 motherboards from Intel and compatibles.
942 * Intel i810/810E, i815, i820, i830, i84x, MX440
943 ICH5, ICH6, ICH7, ESB2
944 * SiS 7012 (SiS 735)
945 * NVidia NForce, NForce2, NForce3, MCP04, CK804
946 CK8, CK8S, MCP501
947 * AMD AMD768, AMD8111
948 * ALi m5455
950 ac97_clock - AC'97 codec clock base (0 = auto-detect)
951 ac97_quirk - AC'97 workaround for strange hardware
952 See "AC97 Quirk Option" section below.
953 buggy_irq - Enable workaround for buggy interrupts on some
954 motherboards (default yes on nForce chips,
955 otherwise off)
956 buggy_semaphore - Enable workaround for hardwares with buggy
957 semaphores (e.g. on some ASUS laptops)
958 (default off)
960 This module supports one chip and autoprobe.
962 Note: the latest driver supports auto-detection of chip clock.
963 if you still encounter too fast playback, specify the clock
964 explicitly via the module option "ac97_clock=41194".
966 Joystick/MIDI ports are not supported by this driver. If your
967 motherboard has these devices, use the ns558 or snd-mpu401
968 modules, respectively.
970 The power-management is supported.
972 Module snd-intel8x0m
973 --------------------
975 Module for Intel ICH (i8x0) chipset MC97 modems.
976 * Intel i810/810E, i815, i820, i830, i84x, MX440
977 ICH5, ICH6, ICH7
978 * SiS 7013 (SiS 735)
979 * NVidia NForce, NForce2, NForce2s, NForce3
980 * AMD AMD8111
981 * ALi m5455
983 ac97_clock - AC'97 codec clock base (0 = auto-detect)
985 This module supports one card and autoprobe.
987 Note: The default index value of this module is -2, i.e. the first
988 slot is excluded.
990 The power-management is supported.
992 Module snd-interwave
993 --------------------
995 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
996 and other sound cards based on AMD InterWave (tm) chip.
998 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
999 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1000 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1001 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1002 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1003 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1004 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1005 effect - 1 = InterWave effects enable (default 0);
1006 requires 8 voices
1008 This module supports multiple cards, autoprobe and ISA PnP.
1010 Module snd-interwave-stb
1011 ------------------------
1013 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1014 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1015 circuit for extended control of bass, treble and master volume.
1017 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1018 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1019 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1020 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1021 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1022 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1023 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1024 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1025 effect - 1 = InterWave effects enable (default 0);
1026 requires 8 voices
1028 This module supports multiple cards, autoprobe and ISA PnP.
1030 Module snd-korg1212
1031 -------------------
1033 Module for Korg 1212 IO PCI card
1035 This module supports multiple cards.
1037 Module snd-maestro3
1038 -------------------
1040 Module for Allegro/Maestro3 chips
1042 external_amp - enable external amp (enabled by default)
1043 amp_gpio - GPIO pin number for external amp (0-15) or
1044 -1 for default pin (8 for allegro, 1 for
1045 others)
1047 This module supports autoprobe and multiple chips.
1049 Note: the binding of amplifier is dependent on hardware.
1050 If there is no sound even though all channels are unmuted, try to
1051 specify other gpio connection via amp_gpio option.
1052 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1053 option.
1055 The power-management is supported.
1057 Module snd-miro
1058 ---------------
1060 Module for Miro soundcards: miroSOUND PCM 1 pro,
1061 miroSOUND PCM 12,
1062 miroSOUND PCM 20 Radio.
1064 port - Port # (0x530,0x604,0xe80,0xf40)
1065 irq - IRQ # (5,7,9,10,11)
1066 dma1 - 1st dma # (0,1,3)
1067 dma2 - 2nd dma # (0,1)
1068 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1069 mpu_irq - MPU-401 irq # (5,7,9,10)
1070 fm_port - FM Port # (0x388)
1071 wss - enable WSS mode
1072 ide - enable onboard ide support
1074 Module snd-mixart
1075 -----------------
1077 Module for Digigram miXart8 sound cards.
1079 This module supports multiple cards.
1080 Note: One miXart8 board will be represented as 4 alsa cards.
1081 See MIXART.txt for details.
1083 When the driver is compiled as a module and the hotplug firmware
1084 is supported, the firmware data is loaded via hotplug automatically.
1085 Install the necessary firmware files in alsa-firmware package.
1086 When no hotplug fw loader is available, you need to load the
1087 firmware via mixartloader utility in alsa-tools package.
1089 Module snd-mpu401
1090 -----------------
1092 Module for MPU-401 UART devices.
1094 port - port number or -1 (disable)
1095 irq - IRQ number or -1 (disable)
1096 pnp - PnP detection - 0 = disable, 1 = enable (default)
1098 This module supports multiple devices and PnP.
1100 Module snd-mtpav
1101 ----------------
1103 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1104 port).
1106 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1107 irq - IRQ # for MTPAV (7,5, default=7)
1108 hwports - number of supported hardware ports, default=8.
1110 Module supports only 1 card. This module has no enable option.
1112 Module snd-nm256
1113 ----------------
1115 Module for NeoMagic NM256AV/ZX chips
1117 playback_bufsize - max playback frame size in kB (4-128kB)
1118 capture_bufsize - max capture frame size in kB (4-128kB)
1119 force_ac97 - 0 or 1 (disabled by default)
1120 buffer_top - specify buffer top address
1121 use_cache - 0 or 1 (disabled by default)
1122 vaio_hack - alias buffer_top=0x25a800
1123 reset_workaround - enable AC97 RESET workaround for some laptops
1124 reset_workaround2 - enable extended AC97 RESET workaround for some
1125 other laptops
1127 This module supports one chip and autoprobe.
1129 The power-management is supported.
1131 Note: on some notebooks the buffer address cannot be detected
1132 automatically, or causes hang-up during initialization.
1133 In such a case, specify the buffer top address explicity via
1134 buffer_top option.
1135 For example,
1136 Sony F250: buffer_top=0x25a800
1137 Sony F270: buffer_top=0x272800
1138 The driver supports only ac97 codec. It's possible to force
1139 to initialize/use ac97 although it's not detected. In such a
1140 case, use force_ac97=1 option - but *NO* guarantee whether it
1141 works!
1143 Note: The NM256 chip can be linked internally with non-AC97
1144 codecs. This driver supports only the AC97 codec, and won't work
1145 with machines with other (most likely CS423x or OPL3SAx) chips,
1146 even though the device is detected in lspci. In such a case, try
1147 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1148 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1149 and proper hardware parameters in the case without ISA PnP.
1151 Note: some laptops need a workaround for AC97 RESET. For the
1152 known hardware like Dell Latitude LS and Sony PCG-F305, this
1153 workaround is enabled automatically. For other laptops with a
1154 hard freeze, you can try reset_workaround=1 option.
1156 Note: Dell Latitude CSx laptops have another problem regarding
1157 AC97 RESET. On these laptops, reset_workaround2 option is
1158 turned on as default. This option is worth to try if the
1159 previous reset_workaround option doesn't help.
1161 Note: This driver is really crappy. It's a porting from the
1162 OSS driver, which is a result of black-magic reverse engineering.
1163 The detection of codec will fail if the driver is loaded *after*
1164 X-server as described above. You might be able to force to load
1165 the module, but it may result in hang-up. Hence, make sure that
1166 you load this module *before* X if you encounter this kind of
1167 problem.
1169 Module snd-opl3sa2
1170 ------------------
1172 Module for Yamaha OPL3-SA2/SA3 sound cards.
1174 port - control port # for OPL3-SA chip (0x370)
1175 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1176 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1177 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1178 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1179 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1180 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1181 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1182 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1184 This module supports multiple cards and ISA PnP. It does not support
1185 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1187 The power-management is supported.
1189 Module snd-opti92x-ad1848
1190 -------------------------
1192 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1193 Module works with OAK Mozart cards as well.
1195 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1196 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1197 fm_port - port # for OPL3 device (0x388)
1198 irq - IRQ # for WSS chip (5,7,9,10,11)
1199 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1200 dma1 - first DMA # for WSS chip (0,1,3)
1202 This module supports only one card, autoprobe and PnP.
1204 Module snd-opti92x-cs4231
1205 -------------------------
1207 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1209 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1210 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1211 fm_port - port # for OPL3 device (0x388)
1212 irq - IRQ # for WSS chip (5,7,9,10,11)
1213 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1214 dma1 - first DMA # for WSS chip (0,1,3)
1215 dma2 - second DMA # for WSS chip (0,1,3)
1217 This module supports only one card, autoprobe and PnP.
1219 Module snd-opti93x
1220 ------------------
1222 Module for sound cards based on OPTi 82c93x chips.
1224 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1225 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1226 fm_port - port # for OPL3 device (0x388)
1227 irq - IRQ # for WSS chip (5,7,9,10,11)
1228 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1229 dma1 - first DMA # for WSS chip (0,1,3)
1230 dma2 - second DMA # for WSS chip (0,1,3)
1232 This module supports only one card, autoprobe and PnP.
1234 Module snd-pcxhr
1235 ----------------
1237 Module for Digigram PCXHR boards
1239 This module supports multiple cards.
1241 Module snd-powermac (on ppc only)
1242 ---------------------------------
1244 Module for PowerMac, iMac and iBook on-board soundchips
1246 enable_beep - enable beep using PCM (enabled as default)
1248 Module supports autoprobe a chip.
1250 Note: the driver may have problems regarding endianess.
1252 The power-management is supported.
1254 Module snd-pxa2xx-ac97 (on arm only)
1255 ------------------------------------
1257 Module for AC97 driver for the Intel PXA2xx chip
1259 For ARM architecture only.
1261 The power-management is supported.
1263 Module snd-riptide
1264 ------------------
1266 Module for Conexant Riptide chip
1268 joystick_port - Joystick port # (default: 0x200)
1269 mpu_port - MPU401 port # (default: 0x330)
1270 opl3_port - OPL3 port # (default: 0x388)
1272 This module supports multiple cards.
1273 The driver requires the firmware loader support on kernel.
1274 You need to install the firmware file "riptide.hex" to the standard
1275 firmware path (e.g. /lib/firmware).
1277 Module snd-rme32
1278 ----------------
1280 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1281 Prodif96 and Prodif Gold) sound cards.
1283 This module supports multiple cards.
1285 Module snd-rme96
1286 ----------------
1288 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1290 This module supports multiple cards.
1292 Module snd-rme9652
1293 ------------------
1295 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1297 precise_ptr - Enable precise pointer (doesn't work reliably).
1298 (default = 0)
1300 This module supports multiple cards.
1302 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1303 module did formerly. It will allocate the buffers in advance
1304 when any RME9652 cards are found. To make the buffer
1305 allocation sure, load snd-page-alloc module in the early
1306 stage of boot sequence. See "Early Buffer Allocation"
1307 section.
1309 Module snd-sa11xx-uda1341 (on arm only)
1310 ---------------------------------------
1312 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1314 Module supports only one card.
1315 Module has no enable and index options.
1317 The power-management is supported.
1319 Module snd-sb8
1320 --------------
1322 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1323 SoundBlaster 2.0,
1324 SoundBlaster Pro
1326 port - port # for SB DSP chip (0x220,0x240,0x260)
1327 irq - IRQ # for SB DSP chip (5,7,9,10)
1328 dma8 - DMA # for SB DSP chip (1,3)
1330 This module supports multiple cards and autoprobe.
1332 The power-management is supported.
1334 Module snd-sb16 and snd-sbawe
1335 -----------------------------
1337 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1338 SoundBlaster AWE 32 (PnP),
1339 SoundBlaster AWE 64 PnP
1341 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1342 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1343 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1344 (snd-sbawe module only)
1345 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1346 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1347 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1348 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1349 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1350 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1352 This module supports multiple cards, autoprobe and ISA PnP.
1354 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1355 disable 16bit DMA with dma16 = -1 module parameter.
1356 Also, all Sound Blaster 16 type cards can operate in 16-bit
1357 half duplex mode through 8-bit DMA channel by disabling their
1358 16-bit DMA channel.
1360 The power-management is supported.
1362 Module snd-sgalaxy
1363 ------------------
1365 Module for Aztech Sound Galaxy sound card.
1367 sbport - Port # for SB16 interface (0x220,0x240)
1368 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1369 irq - IRQ # (7,9,10,11)
1370 dma1 - DMA #
1372 This module supports multiple cards.
1374 The power-management is supported.
1376 Module snd-sscape
1377 -----------------
1379 Module for ENSONIQ SoundScape PnP cards.
1381 port - Port # (PnP setup)
1382 irq - IRQ # (PnP setup)
1383 mpu_irq - MPU-401 IRQ # (PnP setup)
1384 dma - DMA # (PnP setup)
1386 This module supports multiple cards. ISA PnP must be enabled.
1387 You need sscape_ctl tool in alsa-tools package for loading
1388 the microcode.
1390 Module snd-sun-amd7930 (on sparc only)
1391 --------------------------------------
1393 Module for AMD7930 sound chips found on Sparcs.
1395 This module supports multiple cards.
1397 Module snd-sun-cs4231 (on sparc only)
1398 -------------------------------------
1400 Module for CS4231 sound chips found on Sparcs.
1402 This module supports multiple cards.
1404 Module snd-sun-dbri (on sparc only)
1405 -----------------------------------
1407 Module for DBRI sound chips found on Sparcs.
1409 This module supports multiple cards.
1411 Module snd-wavefront
1412 --------------------
1414 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1416 cs4232_pcm_port - Port # for CS4232 PCM interface.
1417 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1418 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1419 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1420 use_cs4232_midi - Use CS4232 MPU-401 interface
1421 (inaccessibly located inside your computer)
1422 ics2115_port - Port # for ICS2115
1423 ics2115_irq - IRQ # for ICS2115
1424 fm_port - FM OPL-3 Port #
1425 dma1 - DMA1 # for CS4232 PCM interface.
1426 dma2 - DMA2 # for CS4232 PCM interface.
1427 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1429 This module supports multiple cards and ISA PnP.
1431 Module snd-sonicvibes
1432 ---------------------
1434 Module for S3 SonicVibes PCI sound cards.
1435 * PINE Schubert 32 PCI
1437 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1438 - SoundCard must have onboard SRAM for this.
1439 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1441 This module supports multiple cards and autoprobe.
1443 Module snd-serial-u16550
1444 ------------------------
1446 Module for UART16550A serial MIDI ports.
1448 port - port # for UART16550A chip
1449 irq - IRQ # for UART16550A chip, -1 = poll mode
1450 speed - speed in bauds (9600,19200,38400,57600,115200)
1451 38400 = default
1452 base - base for divisor in bauds (57600,115200,230400,460800)
1453 115200 = default
1454 outs - number of MIDI ports in a serial port (1-4)
1455 1 = default
1456 adaptor - Type of adaptor.
1457 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1458 3 = MS-124W M/B, 4 = Generic
1460 This module supports multiple cards. This module does not support autoprobe
1461 thus the main port must be specified!!! Other options are optional.
1463 Module snd-trident
1464 ------------------
1466 Module for Trident 4DWave DX/NX sound cards.
1467 * Best Union Miss Melody 4DWave PCI
1468 * HIS 4DWave PCI
1469 * Warpspeed ONSpeed 4DWave PCI
1470 * AzTech PCI 64-Q3D
1471 * Addonics SV 750
1472 * CHIC True Sound 4Dwave
1473 * Shark Predator4D-PCI
1474 * Jaton SonicWave 4D
1476 pcm_channels - max channels (voices) reserved for PCM
1477 wavetable_size - max wavetable size in kB (4-?kb)
1479 This module supports multiple cards and autoprobe.
1481 The power-management is supported.
1483 Module snd-usb-audio
1484 --------------------
1486 Module for USB audio and USB MIDI devices.
1488 vid - Vendor ID for the device (optional)
1489 pid - Product ID for the device (optional)
1490 device_setup - Device specific magic number (optional)
1491 - Influence depends on the device
1492 - Default: 0x0000
1494 This module supports multiple devices, autoprobe and hotplugging.
1496 Module snd-usb-usx2y
1497 --------------------
1499 Module for Tascam USB US-122, US-224 and US-428 devices.
1501 This module supports multiple devices, autoprobe and hotplugging.
1503 Note: you need to load the firmware via usx2yloader utility included
1504 in alsa-tools and alsa-firmware packages.
1506 Module snd-via82xx
1507 ------------------
1509 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1510 8233A, 8233C, 8235, 8237 (south) bridge.
1512 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1513 [VIA686A/686B only]
1514 joystick - Enable joystick (default off) [VIA686A/686B only]
1515 ac97_clock - AC'97 codec clock base (default 48000Hz)
1516 dxs_support - support DXS channels,
1517 0 = auto (default), 1 = enable, 2 = disable,
1518 3 = 48k only, 4 = no VRA, 5 = enable any sample
1519 rate and different sample rates on different
1520 channels
1521 [VIA8233/C, 8235, 8237 only]
1522 ac97_quirk - AC'97 workaround for strange hardware
1523 See "AC97 Quirk Option" section below.
1525 This module supports one chip and autoprobe.
1527 Note: on some SMP motherboards like MSI 694D the interrupts might
1528 not be generated properly. In such a case, please try to
1529 set the SMP (or MPS) version on BIOS to 1.1 instead of
1530 default value 1.4. Then the interrupt number will be
1531 assigned under 15. You might also upgrade your BIOS.
1533 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1534 channels as the first PCM. On these channels, up to 4
1535 streams can be played at the same time, and the controller
1536 can perform sample rate conversion with separate rates for
1537 each channel.
1538 As default (dxs_support = 0), 48k fixed rate is chosen
1539 except for the known devices since the output is often
1540 noisy except for 48k on some mother boards due to the
1541 bug of BIOS.
1542 Please try once dxs_support=5 and if it works on other
1543 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1544 know the PCI subsystem vendor/device id's (output of
1545 "lspci -nv").
1546 If dxs_support=5 does not work, try dxs_support=4; if it
1547 doesn't work too, try dxs_support=1. (dxs_support=1 is
1548 usually for old motherboards. The correct implemented
1549 board should work with 4 or 5.) If it still doesn't
1550 work and the default setting is ok, dxs_support=3 is the
1551 right choice. If the default setting doesn't work at all,
1552 try dxs_support=2 to disable the DXS channels.
1553 In any cases, please let us know the result and the
1554 subsystem vendor/device ids. See "Links and Addresses"
1555 below.
1557 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1558 additionally. The mpu_port option is for VIA686 chips only.
1560 The power-management is supported.
1562 Module snd-via82xx-modem
1563 ------------------------
1565 Module for VIA82xx AC97 modem
1567 ac97_clock - AC'97 codec clock base (default 48000Hz)
1569 This module supports one card and autoprobe.
1571 Note: The default index value of this module is -2, i.e. the first
1572 slot is excluded.
1574 The power-management is supported.
1576 Module snd-virmidi
1577 ------------------
1579 Module for virtual rawmidi devices.
1580 This module creates virtual rawmidi devices which communicate
1581 to the corresponding ALSA sequencer ports.
1583 midi_devs - MIDI devices # (1-4, default=4)
1585 This module supports multiple cards.
1587 Module snd-vx222
1588 ----------------
1590 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1592 mic - Enable Microphone on V222 Mic (NYI)
1593 ibl - Capture IBL size. (default = 0, minimum size)
1595 This module supports multiple cards.
1597 When the driver is compiled as a module and the hotplug firmware
1598 is supported, the firmware data is loaded via hotplug automatically.
1599 Install the necessary firmware files in alsa-firmware package.
1600 When no hotplug fw loader is available, you need to load the
1601 firmware via vxloader utility in alsa-tools package. To invoke
1602 vxloader automatically, add the following to /etc/modprobe.conf
1604 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1606 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1607 /etc/modules.conf, instead.)
1608 IBL size defines the interrupts period for PCM. The smaller size
1609 gives smaller latency but leads to more CPU consumption, too.
1610 The size is usually aligned to 126. As default (=0), the smallest
1611 size is chosen. The possible IBL values can be found in
1612 /proc/asound/cardX/vx-status proc file.
1614 The power-management is supported.
1616 Module snd-vxpocket
1617 -------------------
1619 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1621 ibl - Capture IBL size. (default = 0, minimum size)
1623 This module supports multiple cards. The module is compiled only when
1624 PCMCIA is supported on kernel.
1626 With the older 2.6.x kernel, to activate the driver via the card
1627 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1628 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1629 longer require a config file.
1631 When the driver is compiled as a module and the hotplug firmware
1632 is supported, the firmware data is loaded via hotplug automatically.
1633 Install the necessary firmware files in alsa-firmware package.
1634 When no hotplug fw loader is available, you need to load the
1635 firmware via vxloader utility in alsa-tools package.
1637 About capture IBL, see the description of snd-vx222 module.
1639 Note: the driver is build only when CONFIG_ISA is set.
1641 Note2: snd-vxp440 driver is merged to snd-vxpocket driver since
1642 ALSA 1.0.10.
1644 The power-management is supported.
1646 Module snd-ymfpci
1647 -----------------
1649 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1651 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1652 1 (auto-detect for YMF744/754 only)
1653 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1654 1 (auto-detect for YMF744/754 only)
1655 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1656 1 (auto-detect)
1657 rear_switch - enable shared rear/line-in switch (bool)
1659 This module supports autoprobe and multiple chips.
1661 The power-management is supported.
1663 Module snd-pdaudiocf
1664 --------------------
1666 Module for Sound Core PDAudioCF sound card.
1668 Note: the driver is build only when CONFIG_ISA is set.
1670 The power-management is supported.
1673 AC97 Quirk Option
1674 =================
1676 The ac97_quirk option is used to enable/override the workaround for
1677 specific devices on drivers for on-board AC'97 controllers like
1678 snd-intel8x0. Some hardware have swapped output pins between Master
1679 and Headphone, or Surround (thanks to confusion of AC'97
1680 specifications from version to version :-)
1682 The driver provides the auto-detection of known problematic devices,
1683 but some might be unknown or wrongly detected. In such a case, pass
1684 the proper value with this option.
1686 The following strings are accepted:
1687 - default Don't override the default setting
1688 - none Disable the quirk
1689 - hp_only Bind Master and Headphone controls as a single control
1690 - swap_hp Swap headphone and master controls
1691 - swap_surround Swap master and surround controls
1692 - ad_sharing For AD1985, turn on OMS bit and use headphone
1693 - alc_jack For ALC65x, turn on the jack sense mode
1694 - inv_eapd Inverted EAPD implementation
1695 - mute_led Bind EAPD bit for turning on/off mute LED
1697 For backward compatibility, the corresponding integer value -1, 0,
1698 ... are accepted, too.
1700 For example, if "Master" volume control has no effect on your device
1701 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1704 Configuring Non-ISAPNP Cards
1705 ============================
1707 When the kernel is configured with ISA-PnP support, the modules
1708 supporting the isapnp cards will have module options "isapnp".
1709 If this option is set, *only* the ISA-PnP devices will be probed.
1710 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1711 together with the proper i/o and irq configuration.
1713 When the kernel is configured without ISA-PnP support, isapnp option
1714 will be not built in.
1717 Module Autoloading Support
1718 ==========================
1720 The ALSA drivers can be loaded automatically on demand by defining
1721 module aliases. The string 'snd-card-%1' is requested for ALSA native
1722 devices where %i is sound card number from zero to seven.
1724 To auto-load an ALSA driver for OSS services, define the string
1725 'sound-slot-%i' where %i means the slot number for OSS, which
1726 corresponds to the card index of ALSA. Usually, define this
1727 as the same card module.
1729 An example configuration for a single emu10k1 card is like below:
1730 ----- /etc/modprobe.conf
1731 alias snd-card-0 snd-emu10k1
1732 alias sound-slot-0 snd-emu10k1
1733 ----- /etc/modprobe.conf
1735 The available number of auto-loaded sound cards depends on the module
1736 option "cards_limit" of snd module. As default it's set to 1.
1737 To enable the auto-loading of multiple cards, specify the number of
1738 sound cards in that option.
1740 When multiple cards are available, it'd better to specify the index
1741 number for each card via module option, too, so that the order of
1742 cards is kept consistent.
1744 An example configuration for two sound cards is like below:
1746 ----- /etc/modprobe.conf
1747 # ALSA portion
1748 options snd cards_limit=2
1749 alias snd-card-0 snd-interwave
1750 alias snd-card-1 snd-ens1371
1751 options snd-interwave index=0
1752 options snd-ens1371 index=1
1753 # OSS/Free portion
1754 alias sound-slot-0 snd-interwave
1755 alias sound-slot-1 snd-ens1371
1756 ----- /etc/moprobe.conf
1758 In this example, the interwave card is always loaded as the first card
1759 (index 0) and ens1371 as the second (index 1).
1762 ALSA PCM devices to OSS devices mapping
1763 =======================================
1765 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1766 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1767 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1768 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1769 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1770 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1771 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1772 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1773 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1775 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1776 sound card number and second means device number. The ALSA devices
1777 have either 'c' or 'p' suffix indicating the direction, capture and
1778 playback, respectively.
1780 Please note that the device mapping above may be varied via the module
1781 options of snd-pcm-oss module.
1784 DEVFS support
1785 =============
1787 The ALSA driver fully supports the devfs extension.
1788 You should add lines below to your devfsd.conf file:
1790 LOOKUP snd MODLOAD ACTION snd
1791 REGISTER ^sound/.* PERMISSIONS root.audio 660
1792 REGISTER ^snd/.* PERMISSIONS root.audio 660
1794 Warning: These lines assume that you have the audio group in your system.
1795 Otherwise replace audio word with another group name (root for
1796 example).
1799 Proc interfaces (/proc/asound)
1800 ==============================
1802 /proc/asound/card#/pcm#[cp]/oss
1803 -------------------------------
1804 String "erase" - erase all additional informations about OSS applications
1805 String "<app_name> <fragments> <fragment_size> [<options>]"
1807 <app_name> - name of application with (higher priority) or without path
1808 <fragments> - number of fragments or zero if auto
1809 <fragment_size> - size of fragment in bytes or zero if auto
1810 <options> - optional parameters
1811 - disable the application tries to open a pcm device for
1812 this channel but does not want to use it.
1813 (Cause a bug or mmap needs)
1814 It's good for Quake etc...
1815 - direct don't use plugins
1816 - block force block mode (rvplayer)
1817 - non-block force non-block mode
1818 - whole-frag write only whole fragments (optimization affecting
1819 playback only)
1820 - no-silence do not fill silence ahead to avoid clicks
1821 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1822 instead of filled blocks
1824 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1825 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1826 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1829 Early Buffer Allocation
1830 =======================
1832 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1833 sometimes it's too late to find such spaces when the driver module is
1834 actually loaded due to memory fragmentation. You can pre-allocate the
1835 PCM buffers by loading snd-page-alloc module and write commands to its
1836 proc file in prior, for example, in the early boot stage like
1837 /etc/init.d/*.local scripts.
1839 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1840 usage of page allocation. In writing, you can send the following
1841 commands to the snd-page-alloc driver:
1843 - add VENDOR DEVICE MASK SIZE BUFFERS
1845 VENDOR and DEVICE are PCI vendor and device IDs. They take
1846 integer numbers (0x prefix is needed for the hex).
1847 MASK is the PCI DMA mask. Pass 0 if not restricted.
1848 SIZE is the size of each buffer to allocate. You can pass
1849 k and m suffix for KB and MB. The max number is 16MB.
1850 BUFFERS is the number of buffers to allocate. It must be greater
1851 than 0. The max number is 4.
1853 - erase
1855 This will erase the all pre-allocated buffers which are not in
1856 use.
1859 Links and Addresses
1860 ===================
1862 ALSA project homepage
1863 http://www.alsa-project.org
1865 ALSA Bug Tracking System
1866 https://bugtrack.alsa-project.org/bugs/
1868 ALSA Developers ML
1869 mailto:alsa-devel@lists.sourceforge.net