2 Advanced Linux Sound Architecture - Driver
3 ==========================================
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
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'.
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.
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
56 - limiting card index for auto-loading (1-8)
58 - For auto-loading more than one card, specify this
59 option together with snd-card-X aliases.
65 The PCM OSS emulation module.
66 This module takes options which change the mapping of devices.
68 dsp_map - PCM device number maps assigned to the 1st OSS device.
70 adsp_map - PCM device number maps assigned to the 2st OSS device.
73 - Don't block opening busy PCM devices. Default: 1
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".
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).
89 This module takes options which change the mapping of devices.
90 similar to those of the snd-pcm-oss module.
92 midi_map - MIDI device number maps assigned to the 1st OSS device.
94 amidi_map - MIDI device number maps assigned to the 2st OSS device.
97 Common parameters for top sound card modules
98 --------------------------------------------
100 Each of top level sound card module takes the following options.
102 index - index (slot #) of sound card
103 - Values: 0 through 31 or negative
104 - If nonnegative, assign that index number
105 - if negative, interpret as a bitmask of permissible
106 indices; the first free permitted index is assigned
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
116 - Default: enabled, for PCI and ISA PnP cards
121 Module for AdLib FM cards.
123 port - port # for OPL chip
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
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:
134 Port Client name Port name
135 64:0 OPL2 FM synth OPL2 FM Port
137 Load the std.sb and drums.sb patches also supplied by sbiload:
139 sbiload -p 64:0 std.sb drums.sb
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:
144 aplaymidi -p 64:0 foo.mid
149 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
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)
158 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
160 This module supports multiple cards, autoprobe and PnP.
165 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
167 port - port # for AD1848 chip
168 irq - IRQ # for AD1848 chip
169 dma1 - DMA # for AD1848 chip (0,1,3)
171 This module supports multiple cards. It does not support autoprobe
172 thus main port must be specified!!! Other ports are optional.
174 The power-management is supported.
179 Module for Analog Devices AD1889 chips.
181 ac97_quirk - AC'97 workaround for strange hardware
182 See the description of intel8x0 module for details.
184 This module supports multiple cards.
189 Module for ALi M5451 PCI chip.
191 pcm_channels - Number of hardware channels assigned for PCM
192 spdif - Support SPDIF I/O
195 This module supports one chip and autoprobe.
197 The power-management is supported.
202 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
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)
212 This module supports multiple cards, autoprobe and PnP.
214 The power-management is supported.
219 Module for Avance Logic ALS300 and ALS300+
221 This module supports multiple cards.
223 The power-management is supported.
228 Module for sound cards based on Avance Logic ALS4000 PCI chip.
230 joystick_port - port # for legacy joystick support.
231 0 = disabled (default), 1 = auto-detect
233 This module supports multiple cards, autoprobe and PnP.
235 The power-management is supported.
240 Module for ATI IXP 150/200/250/400 AC97 controllers.
242 ac97_clock - AC'97 clock (default = 48000)
243 ac97_quirk - AC'97 workaround for strange hardware
244 See "AC97 Quirk Option" section below.
245 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
247 This module supports one card and autoprobe.
249 ATI IXP has two different methods to control SPDIF output. One is
250 over AC-link and another is over the "direct" SPDIF output. The
251 implementation depends on the motherboard, and you'll need to
252 choose the correct one via spdif_aclink module option.
254 The power-management is supported.
256 Module snd-atiixp-modem
257 -----------------------
259 Module for ATI IXP 150/200/250 AC97 modem controllers.
261 This module supports one card and autoprobe.
263 Note: The default index value of this module is -2, i.e. the first
266 The power-management is supported.
268 Module snd-au8810, snd-au8820, snd-au8830
269 -----------------------------------------
271 Module for Aureal Vortex, Vortex2 and Advantage device.
273 pcifix - Control PCI workarounds
274 0 = Disable all workarounds
275 1 = Force the PCI latency of the Aureal card to 0xff
276 2 = Force the Extend PCI#2 Internal Master for Efficient
277 Handling of Dummy Requests on the VIA KT133 AGP Bridge
278 3 = Force both settings
279 255 = Autodetect what is required (default)
281 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
282 EQ, mpu401, gameport. A3D and wavetable support are still in development.
283 Development and reverse engineering work is being coordinated at
284 http://savannah.nongnu.org/projects/openvortex/
285 SPDIF output has a copy of the AC97 codec output, unless you use the
286 "spdif" pcm device, which allows raw data passthru.
287 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
290 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
291 control correctly. If you have problems regarding this, try
292 another ALSA compliant mixer (alsamixer works).
297 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
299 port - port # for AZT2320 chip (PnP setup)
300 wss_port - port # for WSS (PnP setup)
301 mpu_port - port # for MPU-401 UART (PnP setup)
302 fm_port - FM port # for AZT2320 chip (PnP setup)
303 irq - IRQ # for AZT2320 (WSS) chip (PnP setup)
304 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
305 dma1 - 1st DMA # for AZT2320 (WSS) chip (PnP setup)
306 dma2 - 2nd DMA # for AZT2320 (WSS) chip (PnP setup)
308 This module supports multiple cards, PnP and autoprobe.
310 The power-management is supported.
315 Module for sound cards based on Aztech AZF3328 PCI chip.
317 joystick - Enable joystick (default off)
319 This module supports multiple cards.
324 Module for video cards based on Bt87x chips.
326 digital_rate - Override the default digital rate (Hz)
327 load_all - Load the driver even if the card model isn't known
329 This module supports multiple cards.
331 Note: The default index value of this module is -2, i.e. the first
337 Module for Creative Audigy LS and SB Live 24bit
339 This module supports multiple cards.
345 Module for sound cards based on C-Media CMI8330 ISA chips.
347 wssport - port # for CMI8330 chip (WSS)
348 wssirq - IRQ # for CMI8330 chip (WSS)
349 wssdma - first DMA # for CMI8330 chip (WSS)
350 sbport - port # for CMI8330 chip (SB16)
351 sbirq - IRQ # for CMI8330 chip (SB16)
352 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
353 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
355 This module supports multiple cards and autoprobe.
357 The power-management is supported.
362 Module for C-Media CMI8338 and 8738 PCI sound cards.
364 mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
365 1 = integrated PCI port,
366 0 = disable (default)
367 fm_port - 0x388 (default), 0 = disable (default)
368 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
370 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
372 This module supports autoprobe and multiple cards.
374 The power-management is supported.
379 Module for sound cards based on CS4231 ISA chips.
381 port - port # for CS4231 chip
382 mpu_port - port # for MPU-401 UART (optional), -1 = disable
383 irq - IRQ # for CS4231 chip
384 mpu_irq - IRQ # for MPU-401 UART
385 dma1 - first DMA # for CS4231 chip
386 dma2 - second DMA # for CS4231 chip
388 This module supports multiple cards. This module does not support autoprobe
389 thus main port must be specified!!! Other ports are optional.
391 The power-management is supported.
396 Module for sound cards based on CS4232/CS4232A ISA chips.
398 port - port # for CS4232 chip (PnP setup - 0x534)
399 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
400 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
401 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
402 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
403 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
404 dma1 - first DMA # for CS4232 chip (0,1,3)
405 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
406 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
408 This module supports multiple cards. This module does not support autoprobe
409 thus main port must be specified!!! Other ports are optional.
411 The power-management is supported.
416 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
417 CS4238B/CS4239 ISA chips.
419 port - port # for CS4236 chip (PnP setup - 0x534)
420 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
421 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
422 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
423 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
424 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
425 dma1 - first DMA # for CS4236 chip (0,1,3)
426 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
427 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
429 This module supports multiple cards. This module does not support autoprobe
430 (if ISA PnP is not used) thus main port and control port must be
431 specified!!! Other ports are optional.
433 The power-management is supported.
438 Module for Cirrus Logic CS4281 soundchip.
440 dual_codec - Secondary codec ID (0 = disable, default)
442 This module supports multiple cards.
444 The power-management is supported.
449 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
450 CS4624/CS4630/CS4280 PCI chips.
452 external_amp - Force to enable external amplifier.
453 thinkpad - Force to enable Thinkpad's CLKRUN control.
454 mmap_valid - Support OSS mmap mode (default = 0).
456 This module supports multiple cards and autoprobe.
457 Usually external amp and CLKRUN controls are detected automatically
458 from PCI sub vendor/device ids. If they don't work, give the options
461 The power-management is supported.
463 Module snd-cs5535audio
464 ----------------------
466 Module for multifunction CS5535 companion PCI device
468 The power-management is supported.
473 Module for Echoaudio Darla20
475 This module supports multiple cards.
476 The driver requires the firmware loader support on kernel.
481 Module for Echoaudio Darla24
483 This module supports multiple cards.
484 The driver requires the firmware loader support on kernel.
489 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
492 port - Port # (PnP setup)
493 mpu_port - Port # for MPU-401 (PnP setup)
494 fm_port - Port # for FM OPL-3 (PnP setup)
495 irq - IRQ # (PnP setup)
496 mpu_irq - IRQ # for MPU-401 (PnP setup)
497 dma8 - DMA # (PnP setup)
499 This module supports multiple cards. This module is enabled only with
502 The power-management is supported.
507 Module for the dummy sound card. This "card" doesn't do any output
508 or input, but you may use this module for any application which
509 requires a sound card (like RealPlayer).
511 The power-management is supported.
516 Module for Echoaudio 3G cards (Gina3G/Layla3G)
518 This module supports multiple cards.
519 The driver requires the firmware loader support on kernel.
524 Module for EMU10K1/EMU10k2 based PCI sound cards.
525 * Sound Blaster Live!
526 * Sound Blaster PCI 512
527 * Emu APS (partially supported)
528 * Sound Blaster Audigy
530 extin - bitmap of available external inputs for FX8010 (see bellow)
531 extout - bitmap of available external outputs for FX8010 (see bellow)
532 seq_ports - allocated sequencer ports (4 by default)
533 max_synth_voices - limit of voices used for wavetable (64 by default)
534 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
535 given in MB unit. Default value is 128.
536 enable_ir - enable IR
538 This module supports multiple cards and autoprobe.
540 Input & Output configurations [extin/extout]
541 * Creative Card wo/Digital out [0x0003/0x1f03]
542 * Creative Card w/Digital out [0x0003/0x1f0f]
543 * Creative Card w/Digital CD in [0x000f/0x1f0f]
544 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
545 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
546 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
547 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
548 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
549 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
550 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
551 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
552 * Creative Card all ins and outs [0x3fff/0x7fff]
554 The power-management is supported.
559 Module for Creative Emu10k1X (SB Live Dell OEM version)
561 This module supports multiple cards.
566 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
567 * SoundBlaster PCI 64
568 * SoundBlaster PCI 128
570 joystick - Enable joystick (default off)
572 This module supports multiple cards and autoprobe.
574 The power-management is supported.
579 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
580 * SoundBlaster PCI 64
581 * SoundBlaster PCI 128
582 * SoundBlaster Vibra PCI
584 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
585 0 = disable (default), 1 = auto-detect
587 This module supports multiple cards and autoprobe.
589 The power-management is supported.
594 Module for sound cards based on ESS ES968 chip (PnP only).
596 port - port # for ES968 (SB8) chip (PnP setup)
597 irq - IRQ # for ES968 (SB8) chip (PnP setup)
598 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
600 This module supports multiple cards, PnP and autoprobe.
602 The power-management is supported.
607 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
609 port - port # for ES-1688 chip (0x220,0x240,0x260)
610 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
611 irq - IRQ # for ES-1688 chip (5,7,9,10)
612 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
613 dma8 - DMA # for ES-1688 chip (0,1,3)
615 This module supports multiple cards and autoprobe (without MPU-401 port).
620 Module for ESS AudioDrive ES-18xx sound cards.
622 port - port # for ES-18xx chip (0x220,0x240,0x260)
623 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
624 fm_port - port # for FM (optional, not used)
625 irq - IRQ # for ES-18xx chip (5,7,9,10)
626 dma1 - first DMA # for ES-18xx chip (0,1,3)
627 dma2 - first DMA # for ES-18xx chip (0,1,3)
628 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
630 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
631 port if native ISA PnP routines are not used).
632 When dma2 is equal with dma1, the driver works as half-duplex.
634 The power-management is supported.
639 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
641 This module supports multiple cards and autoprobe.
643 The power-management is supported.
648 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
650 total_bufsize - total buffer size in kB (1-4096kB)
651 pcm_substreams_p - playback channels (1-8, default=2)
652 pcm_substreams_c - capture channels (1-8, default=0)
653 clock - clock (0 = auto-detection)
654 use_pm - support the power-management (0 = off, 1 = on,
656 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
657 joystick - enable joystick (default off)
659 This module supports multiple cards and autoprobe.
661 The power-management is supported.
666 Module for ForteMedia FM801 based PCI sound cards.
668 tea575x_tuner - Enable TEA575x tuner
669 - 1 = MediaForte 256-PCS
670 - 2 = MediaForte 256-PCPR
671 - 3 = MediaForte 64-PCR
672 - High 16-bits are video (radio) device number + 1
673 - example: 0x10002 (MediaForte 256-PCPR, device 1)
675 This module supports multiple cards and autoprobe.
677 The power-management is supported.
682 Module for Echoaudio Gina20
684 This module supports multiple cards.
685 The driver requires the firmware loader support on kernel.
690 Module for Echoaudio Gina24
692 This module supports multiple cards.
693 The driver requires the firmware loader support on kernel.
695 Module snd-gusclassic
696 ---------------------
698 Module for Gravis UltraSound Classic sound card.
700 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
701 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
702 dma1 - DMA # for GF1 chip (1,3,5,6,7)
703 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
704 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
705 voices - GF1 voices limit (14-32)
706 pcm_voices - reserved PCM voices
708 This module supports multiple cards and autoprobe.
710 Module snd-gusextreme
711 ---------------------
713 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
715 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
716 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
717 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
718 irq - IRQ # for ES-1688 chip (5,7,9,10)
719 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
720 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
721 dma8 - DMA # for ES-1688 chip (0,1,3)
722 dma1 - DMA # for GF1 chip (1,3,5,6,7)
723 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
724 voices - GF1 voices limit (14-32)
725 pcm_voices - reserved PCM voices
727 This module supports multiple cards and autoprobe (without MPU-401 port).
732 Module for Gravis UltraSound MAX sound card.
734 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
735 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
736 dma1 - DMA # for GF1 chip (1,3,5,6,7)
737 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
738 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
739 voices - GF1 voices limit (14-32)
740 pcm_voices - reserved PCM voices
742 This module supports multiple cards and autoprobe.
747 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
748 ATI SB450, SB600, RS600,
752 model - force the model name
753 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
754 single_cmd - Use single immediate commands to communicate with
755 codecs (for debugging only)
756 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
758 This module supports one card and autoprobe.
760 Each codec may have a model table for different configurations.
761 If your machine isn't listed there, the default (usually minimal)
762 configuration is set up. You can pass "model=<name>" option to
763 specify a certain model in such a case. There are different
764 models depending on the codec chip.
766 Model name Description
767 ---------- -----------
769 3stack 3-jack in back and a headphone out
770 3stack-digout 3-jack in back, a HP out and a SPDIF out
771 5stack 5-jack in back, 2-jack in front
772 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
773 6stack 6-jack in back, 2-jack in front
774 6stack-digout 6-jack with a SPDIF out
776 z71v 3-jack (HP shared SPDIF)
777 asus 3-jack (ASUS Mobo)
779 asus-dig ASUS with SPDIF out
780 asus-dig2 ASUS with SPDIF out (using GPIO2)
783 lg LG laptop (m1 express dual)
784 lg-lw LG LW20/LW25 laptop
786 clevo Clevo laptops (m520G, m665n)
787 test for testing/debugging purpose, almost all controls can be
788 adjusted. Appearing only when compiled with
790 auto auto-config reading BIOS (default)
794 hp-3013 HP machines (3013-variant)
795 fujitsu Fujitsu S7020
797 basic fixed pin assignment (old default model)
798 auto auto-config reading BIOS (default)
801 fujitsu Fujitsu Laptop
802 hp-bpc HP xw4400/6400/8400/9400 laptops
804 basic fixed pin assignment w/o SPDIF
805 auto auto-config reading BIOS (default)
808 3stack-dig 3-jack with SPDIF I/O
809 6stck-dig 6-jack digital with SPDIF I/O
811 auto auto-config reading BIOS (default)
814 3stack-dig 3-jack with SPDIF I/O
815 6stack-dig 6-jack digital with SPDIF I/O
816 3stack-6ch 3-jack 6-channel
817 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
818 6stack-dig-demo 6-jack digital for Intel demo board
819 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
820 medion Medion Laptops
821 auto auto-config reading BIOS (default)
825 3stack-dig 3-jack with SPDIF I/O
826 6stack-dig 6-jack with SPDIF I/O
827 3stack-660 3-jack (for ALC660)
828 uniwill-m31 Uniwill M31 laptop
829 auto auto-config reading BIOS (default)
832 minimal 3-jack in back
833 min_fp 3-jack in back, 2-jack in front
834 full 6-jack in back, 2-jack in front
835 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
836 allout 5-jack in back, 2-jack in front, SPDIF out
837 auto auto-config reading BIOS (default)
840 basic 3-jack (default)
842 thinkpad Lenovo Thinkpad T60/X60/Z60
845 6stack 6-jack, separate surrounds (default)
846 3stack 3-stack, shared surrounds
847 laptop 2-channel only (FSC V2060, Samsung M50)
848 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
852 6stack-dig ditto with SPDIF
854 3stack-dig ditto with SPDIF
855 laptop 3-jack with hp-jack automute
856 laptop-dig ditto with SPDIF
857 auto auto-config reading BIOS (default)
859 STAC9200/9205/9220/9221/9254
862 5stack D945 5stack + SPDIF
864 STAC9227/9228/9229/927x
867 5stack D965 5stack + SPDIF
870 vaio Setup for VAIO FE550G/SZ110
871 vaio-ar Setup for VAIO AR
873 If the default configuration doesn't work and one of the above
874 matches with your device, report it together with the PCI
875 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
876 ML (see the section "Links and Addresses").
878 Note 2: If you get click noises on output, try the module option
879 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
880 register value without FIFO size correction as the current
881 DMA pointer. position_fix=2 will make the driver to use
882 the position buffer instead of reading SD_LPIB register.
883 (Usually SD_LPLIB register is more accurate than the
886 NB: If you get many "azx_get_response timeout" messages at
887 loading, it's likely a problem of interrupts (e.g. ACPI irq
888 routing). Try to boot with options like "pci=noacpi". Also, you
889 can try "single_cmd=1" module option. This will switch the
890 communication method between HDA controller and codecs to the
891 single immediate commands instead of CORB/RIRB. Basically, the
892 single command mode is provided only for BIOS, and you won't get
893 unsolicited events, too. But, at least, this works independently
894 from the irq. Remember this is a last resort, and should be
895 avoided as much as possible...
897 The power-management is supported.
902 Module for RME Hammerfall DSP audio interface(s)
904 This module supports multiple cards.
906 Note: The firmware data can be automatically loaded via hotplug
907 when CONFIG_FW_LOADER is set. Otherwise, you need to load
908 the firmware via hdsploader utility included in alsa-tools
910 The firmware data is found in alsa-firmware package.
912 Note: snd-page-alloc module does the job which snd-hammerfall-mem
913 module did formerly. It will allocate the buffers in advance
914 when any HDSP cards are found. To make the buffer
915 allocation sure, load snd-page-alloc module in the early
916 stage of boot sequence. See "Early Buffer Allocation"
922 Module for RME HDSP MADI board.
924 precise_ptr - Enable precise pointer, or disable.
925 line_outs_monitor - Send playback streams to analog outs by default.
926 enable_monitor - Enable Analog Out on Channel 63/64 by default.
928 See hdspm.txt for details.
933 Module for Envy24 (ICE1712) based PCI sound cards.
934 * MidiMan M Audio Delta 1010
935 * MidiMan M Audio Delta 1010LT
936 * MidiMan M Audio Delta DiO 2496
937 * MidiMan M Audio Delta 66
938 * MidiMan M Audio Delta 44
939 * MidiMan M Audio Delta 410
940 * MidiMan M Audio Audiophile 2496
946 * Hoontech SoundTrack DSP 24
947 * Hoontech SoundTrack DSP 24 Value
948 * Hoontech SoundTrack DSP 24 Media 7.1
949 * Event Electronics, EZ8
951 * Lionstracs, Mediastaton
953 model - Use the given board model, one of the following:
954 delta1010, dio2496, delta66, delta44, audiophile, delta410,
955 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
956 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
957 phase88, mediastation
958 omni - Omni I/O support for MidiMan M-Audio Delta44/66
959 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
960 in msec resolution, default value is 500 (0.5 sec)
962 This module supports multiple cards and autoprobe. Note: The consumer part
963 is not used with all Envy24 based cards (for example in the MidiMan Delta
966 Note: The supported board is detected by reading EEPROM or PCI
967 SSID (if EEPROM isn't available). You can override the
968 model by passing "model" module option in case that the
969 driver isn't configured properly or you want to try another
975 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
976 * MidiMan M Audio Revolution 5.1
977 * MidiMan M Audio Revolution 7.1
979 * TerraTec Aureon 5.1 Sky
980 * TerraTec Aureon 7.1 Space
981 * TerraTec Aureon 7.1 Universe
984 * AudioTrak Prodigy 7.1
985 * AudioTrak Prodigy 7.1LT
986 * AudioTrak Prodigy 192
988 * Albatron K8X800 Pro II
995 model - Use the given board model, one of the following:
996 revo51, revo71, amp2000, prodigy71, prodigy71lt,
997 prodigy192, aureon51, aureon71, universe,
998 k8x800, phase22, phase28, ms300, av710
1000 This module supports multiple cards and autoprobe.
1002 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
1011 Module for Echoaudio Indigo
1013 This module supports multiple cards.
1014 The driver requires the firmware loader support on kernel.
1019 Module for Echoaudio Indigo DJ
1021 This module supports multiple cards.
1022 The driver requires the firmware loader support on kernel.
1027 Module for Echoaudio Indigo IO
1029 This module supports multiple cards.
1030 The driver requires the firmware loader support on kernel.
1035 Module for AC'97 motherboards from Intel and compatibles.
1036 * Intel i810/810E, i815, i820, i830, i84x, MX440
1037 ICH5, ICH6, ICH7, ESB2
1038 * SiS 7012 (SiS 735)
1039 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1041 * AMD AMD768, AMD8111
1044 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1045 ac97_quirk - AC'97 workaround for strange hardware
1046 See "AC97 Quirk Option" section below.
1047 buggy_irq - Enable workaround for buggy interrupts on some
1048 motherboards (default yes on nForce chips,
1050 buggy_semaphore - Enable workaround for hardwares with buggy
1051 semaphores (e.g. on some ASUS laptops)
1054 This module supports one chip and autoprobe.
1056 Note: the latest driver supports auto-detection of chip clock.
1057 if you still encounter too fast playback, specify the clock
1058 explicitly via the module option "ac97_clock=41194".
1060 Joystick/MIDI ports are not supported by this driver. If your
1061 motherboard has these devices, use the ns558 or snd-mpu401
1062 modules, respectively.
1064 The power-management is supported.
1066 Module snd-intel8x0m
1067 --------------------
1069 Module for Intel ICH (i8x0) chipset MC97 modems.
1070 * Intel i810/810E, i815, i820, i830, i84x, MX440
1072 * SiS 7013 (SiS 735)
1073 * NVidia NForce, NForce2, NForce2s, NForce3
1077 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1079 This module supports one card and autoprobe.
1081 Note: The default index value of this module is -2, i.e. the first
1084 The power-management is supported.
1086 Module snd-interwave
1087 --------------------
1089 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1090 and other sound cards based on AMD InterWave (tm) chip.
1092 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1093 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1094 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1095 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1096 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1097 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1098 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1099 effect - 1 = InterWave effects enable (default 0);
1102 This module supports multiple cards, autoprobe and ISA PnP.
1104 Module snd-interwave-stb
1105 ------------------------
1107 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1108 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1109 circuit for extended control of bass, treble and master volume.
1111 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1112 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1113 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1114 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1115 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1116 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1117 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1118 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1119 effect - 1 = InterWave effects enable (default 0);
1122 This module supports multiple cards, autoprobe and ISA PnP.
1127 Module for Korg 1212 IO PCI card
1129 This module supports multiple cards.
1134 Module for Echoaudio Layla20
1136 This module supports multiple cards.
1137 The driver requires the firmware loader support on kernel.
1142 Module for Echoaudio Layla24
1144 This module supports multiple cards.
1145 The driver requires the firmware loader support on kernel.
1150 Module for Allegro/Maestro3 chips
1152 external_amp - enable external amp (enabled by default)
1153 amp_gpio - GPIO pin number for external amp (0-15) or
1154 -1 for default pin (8 for allegro, 1 for
1157 This module supports autoprobe and multiple chips.
1159 Note: the binding of amplifier is dependent on hardware.
1160 If there is no sound even though all channels are unmuted, try to
1161 specify other gpio connection via amp_gpio option.
1162 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1165 The power-management is supported.
1170 Module for Echoaudio Mia
1172 This module supports multiple cards.
1173 The driver requires the firmware loader support on kernel.
1178 Module for Miro soundcards: miroSOUND PCM 1 pro,
1180 miroSOUND PCM 20 Radio.
1182 port - Port # (0x530,0x604,0xe80,0xf40)
1183 irq - IRQ # (5,7,9,10,11)
1184 dma1 - 1st dma # (0,1,3)
1185 dma2 - 2nd dma # (0,1)
1186 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1187 mpu_irq - MPU-401 irq # (5,7,9,10)
1188 fm_port - FM Port # (0x388)
1189 wss - enable WSS mode
1190 ide - enable onboard ide support
1195 Module for Digigram miXart8 sound cards.
1197 This module supports multiple cards.
1198 Note: One miXart8 board will be represented as 4 alsa cards.
1199 See MIXART.txt for details.
1201 When the driver is compiled as a module and the hotplug firmware
1202 is supported, the firmware data is loaded via hotplug automatically.
1203 Install the necessary firmware files in alsa-firmware package.
1204 When no hotplug fw loader is available, you need to load the
1205 firmware via mixartloader utility in alsa-tools package.
1210 Module for Echoaudio Mona
1212 This module supports multiple cards.
1213 The driver requires the firmware loader support on kernel.
1218 Module for MPU-401 UART devices.
1220 port - port number or -1 (disable)
1221 irq - IRQ number or -1 (disable)
1222 pnp - PnP detection - 0 = disable, 1 = enable (default)
1224 This module supports multiple devices and PnP.
1229 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1232 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1233 irq - IRQ # for MTPAV (7,5, default=7)
1234 hwports - number of supported hardware ports, default=8.
1236 Module supports only 1 card. This module has no enable option.
1241 Module for Ego Systems (ESI) Miditerminal 4140
1243 This module supports multiple devices.
1244 Requires parport (CONFIG_PARPORT).
1249 Module for NeoMagic NM256AV/ZX chips
1251 playback_bufsize - max playback frame size in kB (4-128kB)
1252 capture_bufsize - max capture frame size in kB (4-128kB)
1253 force_ac97 - 0 or 1 (disabled by default)
1254 buffer_top - specify buffer top address
1255 use_cache - 0 or 1 (disabled by default)
1256 vaio_hack - alias buffer_top=0x25a800
1257 reset_workaround - enable AC97 RESET workaround for some laptops
1258 reset_workaround2 - enable extended AC97 RESET workaround for some
1261 This module supports one chip and autoprobe.
1263 The power-management is supported.
1265 Note: on some notebooks the buffer address cannot be detected
1266 automatically, or causes hang-up during initialization.
1267 In such a case, specify the buffer top address explicitly via
1268 the buffer_top option.
1270 Sony F250: buffer_top=0x25a800
1271 Sony F270: buffer_top=0x272800
1272 The driver supports only ac97 codec. It's possible to force
1273 to initialize/use ac97 although it's not detected. In such a
1274 case, use force_ac97=1 option - but *NO* guarantee whether it
1277 Note: The NM256 chip can be linked internally with non-AC97
1278 codecs. This driver supports only the AC97 codec, and won't work
1279 with machines with other (most likely CS423x or OPL3SAx) chips,
1280 even though the device is detected in lspci. In such a case, try
1281 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1282 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1283 and proper hardware parameters in the case without ISA PnP.
1285 Note: some laptops need a workaround for AC97 RESET. For the
1286 known hardware like Dell Latitude LS and Sony PCG-F305, this
1287 workaround is enabled automatically. For other laptops with a
1288 hard freeze, you can try reset_workaround=1 option.
1290 Note: Dell Latitude CSx laptops have another problem regarding
1291 AC97 RESET. On these laptops, reset_workaround2 option is
1292 turned on as default. This option is worth to try if the
1293 previous reset_workaround option doesn't help.
1295 Note: This driver is really crappy. It's a porting from the
1296 OSS driver, which is a result of black-magic reverse engineering.
1297 The detection of codec will fail if the driver is loaded *after*
1298 X-server as described above. You might be able to force to load
1299 the module, but it may result in hang-up. Hence, make sure that
1300 you load this module *before* X if you encounter this kind of
1306 Module for Yamaha OPL3-SA2/SA3 sound cards.
1308 port - control port # for OPL3-SA chip (0x370)
1309 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1310 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1311 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1312 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1313 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1314 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1315 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1316 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1318 This module supports multiple cards and ISA PnP. It does not support
1319 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1321 The power-management is supported.
1323 Module snd-opti92x-ad1848
1324 -------------------------
1326 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1327 Module works with OAK Mozart cards as well.
1329 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1330 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1331 fm_port - port # for OPL3 device (0x388)
1332 irq - IRQ # for WSS chip (5,7,9,10,11)
1333 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1334 dma1 - first DMA # for WSS chip (0,1,3)
1336 This module supports only one card, autoprobe and PnP.
1338 Module snd-opti92x-cs4231
1339 -------------------------
1341 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1343 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1344 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1345 fm_port - port # for OPL3 device (0x388)
1346 irq - IRQ # for WSS chip (5,7,9,10,11)
1347 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1348 dma1 - first DMA # for WSS chip (0,1,3)
1349 dma2 - second DMA # for WSS chip (0,1,3)
1351 This module supports only one card, autoprobe and PnP.
1356 Module for sound cards based on OPTi 82c93x chips.
1358 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1359 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1360 fm_port - port # for OPL3 device (0x388)
1361 irq - IRQ # for WSS chip (5,7,9,10,11)
1362 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1363 dma1 - first DMA # for WSS chip (0,1,3)
1364 dma2 - second DMA # for WSS chip (0,1,3)
1366 This module supports only one card, autoprobe and PnP.
1371 Module for Digigram PCXHR boards
1373 This module supports multiple cards.
1375 Module snd-powermac (on ppc only)
1376 ---------------------------------
1378 Module for PowerMac, iMac and iBook on-board soundchips
1380 enable_beep - enable beep using PCM (enabled as default)
1382 Module supports autoprobe a chip.
1384 Note: the driver may have problems regarding endianess.
1386 The power-management is supported.
1388 Module snd-pxa2xx-ac97 (on arm only)
1389 ------------------------------------
1391 Module for AC97 driver for the Intel PXA2xx chip
1393 For ARM architecture only.
1395 The power-management is supported.
1400 Module for Conexant Riptide chip
1402 joystick_port - Joystick port # (default: 0x200)
1403 mpu_port - MPU401 port # (default: 0x330)
1404 opl3_port - OPL3 port # (default: 0x388)
1406 This module supports multiple cards.
1407 The driver requires the firmware loader support on kernel.
1408 You need to install the firmware file "riptide.hex" to the standard
1409 firmware path (e.g. /lib/firmware).
1414 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1415 Prodif96 and Prodif Gold) sound cards.
1417 This module supports multiple cards.
1422 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1424 This module supports multiple cards.
1429 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1431 precise_ptr - Enable precise pointer (doesn't work reliably).
1434 This module supports multiple cards.
1436 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1437 module did formerly. It will allocate the buffers in advance
1438 when any RME9652 cards are found. To make the buffer
1439 allocation sure, load snd-page-alloc module in the early
1440 stage of boot sequence. See "Early Buffer Allocation"
1443 Module snd-sa11xx-uda1341 (on arm only)
1444 ---------------------------------------
1446 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1448 Module supports only one card.
1449 Module has no enable and index options.
1451 The power-management is supported.
1456 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1460 port - port # for SB DSP chip (0x220,0x240,0x260)
1461 irq - IRQ # for SB DSP chip (5,7,9,10)
1462 dma8 - DMA # for SB DSP chip (1,3)
1464 This module supports multiple cards and autoprobe.
1466 The power-management is supported.
1468 Module snd-sb16 and snd-sbawe
1469 -----------------------------
1471 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1472 SoundBlaster AWE 32 (PnP),
1473 SoundBlaster AWE 64 PnP
1475 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1476 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1477 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1478 (snd-sbawe module only)
1479 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1480 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1481 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1482 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1483 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1484 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1486 This module supports multiple cards, autoprobe and ISA PnP.
1488 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1489 disable 16bit DMA with dma16 = -1 module parameter.
1490 Also, all Sound Blaster 16 type cards can operate in 16-bit
1491 half duplex mode through 8-bit DMA channel by disabling their
1494 The power-management is supported.
1499 Module for Aztech Sound Galaxy sound card.
1501 sbport - Port # for SB16 interface (0x220,0x240)
1502 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1503 irq - IRQ # (7,9,10,11)
1506 This module supports multiple cards.
1508 The power-management is supported.
1513 Module for ENSONIQ SoundScape PnP cards.
1515 port - Port # (PnP setup)
1516 irq - IRQ # (PnP setup)
1517 mpu_irq - MPU-401 IRQ # (PnP setup)
1518 dma - DMA # (PnP setup)
1520 This module supports multiple cards. ISA PnP must be enabled.
1521 You need sscape_ctl tool in alsa-tools package for loading
1524 Module snd-sun-amd7930 (on sparc only)
1525 --------------------------------------
1527 Module for AMD7930 sound chips found on Sparcs.
1529 This module supports multiple cards.
1531 Module snd-sun-cs4231 (on sparc only)
1532 -------------------------------------
1534 Module for CS4231 sound chips found on Sparcs.
1536 This module supports multiple cards.
1538 Module snd-sun-dbri (on sparc only)
1539 -----------------------------------
1541 Module for DBRI sound chips found on Sparcs.
1543 This module supports multiple cards.
1545 Module snd-wavefront
1546 --------------------
1548 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1550 cs4232_pcm_port - Port # for CS4232 PCM interface.
1551 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1552 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1553 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1554 use_cs4232_midi - Use CS4232 MPU-401 interface
1555 (inaccessibly located inside your computer)
1556 ics2115_port - Port # for ICS2115
1557 ics2115_irq - IRQ # for ICS2115
1558 fm_port - FM OPL-3 Port #
1559 dma1 - DMA1 # for CS4232 PCM interface.
1560 dma2 - DMA2 # for CS4232 PCM interface.
1561 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1563 This module supports multiple cards and ISA PnP.
1565 Module snd-sonicvibes
1566 ---------------------
1568 Module for S3 SonicVibes PCI sound cards.
1569 * PINE Schubert 32 PCI
1571 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1572 - SoundCard must have onboard SRAM for this.
1573 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1575 This module supports multiple cards and autoprobe.
1577 Module snd-serial-u16550
1578 ------------------------
1580 Module for UART16550A serial MIDI ports.
1582 port - port # for UART16550A chip
1583 irq - IRQ # for UART16550A chip, -1 = poll mode
1584 speed - speed in bauds (9600,19200,38400,57600,115200)
1586 base - base for divisor in bauds (57600,115200,230400,460800)
1588 outs - number of MIDI ports in a serial port (1-4)
1590 adaptor - Type of adaptor.
1591 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1592 3 = MS-124W M/B, 4 = Generic
1594 This module supports multiple cards. This module does not support autoprobe
1595 thus the main port must be specified!!! Other options are optional.
1600 Module for Trident 4DWave DX/NX sound cards.
1601 * Best Union Miss Melody 4DWave PCI
1603 * Warpspeed ONSpeed 4DWave PCI
1606 * CHIC True Sound 4Dwave
1607 * Shark Predator4D-PCI
1608 * Jaton SonicWave 4D
1610 pcm_channels - max channels (voices) reserved for PCM
1611 wavetable_size - max wavetable size in kB (4-?kb)
1613 This module supports multiple cards and autoprobe.
1615 The power-management is supported.
1617 Module snd-usb-audio
1618 --------------------
1620 Module for USB audio and USB MIDI devices.
1622 vid - Vendor ID for the device (optional)
1623 pid - Product ID for the device (optional)
1624 device_setup - Device specific magic number (optional)
1625 - Influence depends on the device
1628 This module supports multiple devices, autoprobe and hotplugging.
1630 Module snd-usb-usx2y
1631 --------------------
1633 Module for Tascam USB US-122, US-224 and US-428 devices.
1635 This module supports multiple devices, autoprobe and hotplugging.
1637 Note: you need to load the firmware via usx2yloader utility included
1638 in alsa-tools and alsa-firmware packages.
1643 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1644 8233A, 8233C, 8235, 8237 (south) bridge.
1646 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1648 joystick - Enable joystick (default off) [VIA686A/686B only]
1649 ac97_clock - AC'97 codec clock base (default 48000Hz)
1650 dxs_support - support DXS channels,
1651 0 = auto (default), 1 = enable, 2 = disable,
1652 3 = 48k only, 4 = no VRA, 5 = enable any sample
1653 rate and different sample rates on different
1655 [VIA8233/C, 8235, 8237 only]
1656 ac97_quirk - AC'97 workaround for strange hardware
1657 See "AC97 Quirk Option" section below.
1659 This module supports one chip and autoprobe.
1661 Note: on some SMP motherboards like MSI 694D the interrupts might
1662 not be generated properly. In such a case, please try to
1663 set the SMP (or MPS) version on BIOS to 1.1 instead of
1664 default value 1.4. Then the interrupt number will be
1665 assigned under 15. You might also upgrade your BIOS.
1667 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1668 channels as the first PCM. On these channels, up to 4
1669 streams can be played at the same time, and the controller
1670 can perform sample rate conversion with separate rates for
1672 As default (dxs_support = 0), 48k fixed rate is chosen
1673 except for the known devices since the output is often
1674 noisy except for 48k on some mother boards due to the
1676 Please try once dxs_support=5 and if it works on other
1677 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1678 know the PCI subsystem vendor/device id's (output of
1680 If dxs_support=5 does not work, try dxs_support=4; if it
1681 doesn't work too, try dxs_support=1. (dxs_support=1 is
1682 usually for old motherboards. The correct implemented
1683 board should work with 4 or 5.) If it still doesn't
1684 work and the default setting is ok, dxs_support=3 is the
1685 right choice. If the default setting doesn't work at all,
1686 try dxs_support=2 to disable the DXS channels.
1687 In any cases, please let us know the result and the
1688 subsystem vendor/device ids. See "Links and Addresses"
1691 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1692 additionally. The mpu_port option is for VIA686 chips only.
1694 The power-management is supported.
1696 Module snd-via82xx-modem
1697 ------------------------
1699 Module for VIA82xx AC97 modem
1701 ac97_clock - AC'97 codec clock base (default 48000Hz)
1703 This module supports one card and autoprobe.
1705 Note: The default index value of this module is -2, i.e. the first
1708 The power-management is supported.
1713 Module for virtual rawmidi devices.
1714 This module creates virtual rawmidi devices which communicate
1715 to the corresponding ALSA sequencer ports.
1717 midi_devs - MIDI devices # (1-4, default=4)
1719 This module supports multiple cards.
1724 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1726 mic - Enable Microphone on V222 Mic (NYI)
1727 ibl - Capture IBL size. (default = 0, minimum size)
1729 This module supports multiple cards.
1731 When the driver is compiled as a module and the hotplug firmware
1732 is supported, the firmware data is loaded via hotplug automatically.
1733 Install the necessary firmware files in alsa-firmware package.
1734 When no hotplug fw loader is available, you need to load the
1735 firmware via vxloader utility in alsa-tools package. To invoke
1736 vxloader automatically, add the following to /etc/modprobe.conf
1738 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1740 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1741 /etc/modules.conf, instead.)
1742 IBL size defines the interrupts period for PCM. The smaller size
1743 gives smaller latency but leads to more CPU consumption, too.
1744 The size is usually aligned to 126. As default (=0), the smallest
1745 size is chosen. The possible IBL values can be found in
1746 /proc/asound/cardX/vx-status proc file.
1748 The power-management is supported.
1753 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1755 ibl - Capture IBL size. (default = 0, minimum size)
1757 This module supports multiple cards. The module is compiled only when
1758 PCMCIA is supported on kernel.
1760 With the older 2.6.x kernel, to activate the driver via the card
1761 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1762 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1763 longer require a config file.
1765 When the driver is compiled as a module and the hotplug firmware
1766 is supported, the firmware data is loaded via hotplug automatically.
1767 Install the necessary firmware files in alsa-firmware package.
1768 When no hotplug fw loader is available, you need to load the
1769 firmware via vxloader utility in alsa-tools package.
1771 About capture IBL, see the description of snd-vx222 module.
1773 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1776 The power-management is supported.
1781 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1783 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1784 1 (auto-detect for YMF744/754 only)
1785 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1786 1 (auto-detect for YMF744/754 only)
1787 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1789 rear_switch - enable shared rear/line-in switch (bool)
1791 This module supports autoprobe and multiple chips.
1793 The power-management is supported.
1795 Module snd-pdaudiocf
1796 --------------------
1798 Module for Sound Core PDAudioCF sound card.
1800 The power-management is supported.
1806 The ac97_quirk option is used to enable/override the workaround for
1807 specific devices on drivers for on-board AC'97 controllers like
1808 snd-intel8x0. Some hardware have swapped output pins between Master
1809 and Headphone, or Surround (thanks to confusion of AC'97
1810 specifications from version to version :-)
1812 The driver provides the auto-detection of known problematic devices,
1813 but some might be unknown or wrongly detected. In such a case, pass
1814 the proper value with this option.
1816 The following strings are accepted:
1817 - default Don't override the default setting
1818 - none Disable the quirk
1819 - hp_only Bind Master and Headphone controls as a single control
1820 - swap_hp Swap headphone and master controls
1821 - swap_surround Swap master and surround controls
1822 - ad_sharing For AD1985, turn on OMS bit and use headphone
1823 - alc_jack For ALC65x, turn on the jack sense mode
1824 - inv_eapd Inverted EAPD implementation
1825 - mute_led Bind EAPD bit for turning on/off mute LED
1827 For backward compatibility, the corresponding integer value -1, 0,
1828 ... are accepted, too.
1830 For example, if "Master" volume control has no effect on your device
1831 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1834 Configuring Non-ISAPNP Cards
1835 ============================
1837 When the kernel is configured with ISA-PnP support, the modules
1838 supporting the isapnp cards will have module options "isapnp".
1839 If this option is set, *only* the ISA-PnP devices will be probed.
1840 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1841 together with the proper i/o and irq configuration.
1843 When the kernel is configured without ISA-PnP support, isapnp option
1844 will be not built in.
1847 Module Autoloading Support
1848 ==========================
1850 The ALSA drivers can be loaded automatically on demand by defining
1851 module aliases. The string 'snd-card-%1' is requested for ALSA native
1852 devices where %i is sound card number from zero to seven.
1854 To auto-load an ALSA driver for OSS services, define the string
1855 'sound-slot-%i' where %i means the slot number for OSS, which
1856 corresponds to the card index of ALSA. Usually, define this
1857 as the same card module.
1859 An example configuration for a single emu10k1 card is like below:
1860 ----- /etc/modprobe.conf
1861 alias snd-card-0 snd-emu10k1
1862 alias sound-slot-0 snd-emu10k1
1863 ----- /etc/modprobe.conf
1865 The available number of auto-loaded sound cards depends on the module
1866 option "cards_limit" of snd module. As default it's set to 1.
1867 To enable the auto-loading of multiple cards, specify the number of
1868 sound cards in that option.
1870 When multiple cards are available, it'd better to specify the index
1871 number for each card via module option, too, so that the order of
1872 cards is kept consistent.
1874 An example configuration for two sound cards is like below:
1876 ----- /etc/modprobe.conf
1878 options snd cards_limit=2
1879 alias snd-card-0 snd-interwave
1880 alias snd-card-1 snd-ens1371
1881 options snd-interwave index=0
1882 options snd-ens1371 index=1
1884 alias sound-slot-0 snd-interwave
1885 alias sound-slot-1 snd-ens1371
1886 ----- /etc/modprobe.conf
1888 In this example, the interwave card is always loaded as the first card
1889 (index 0) and ens1371 as the second (index 1).
1892 ALSA PCM devices to OSS devices mapping
1893 =======================================
1895 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1896 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1897 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1898 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1899 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1900 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1901 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1902 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1903 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1905 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1906 sound card number and second means device number. The ALSA devices
1907 have either 'c' or 'p' suffix indicating the direction, capture and
1908 playback, respectively.
1910 Please note that the device mapping above may be varied via the module
1911 options of snd-pcm-oss module.
1914 Proc interfaces (/proc/asound)
1915 ==============================
1917 /proc/asound/card#/pcm#[cp]/oss
1918 -------------------------------
1919 String "erase" - erase all additional informations about OSS applications
1920 String "<app_name> <fragments> <fragment_size> [<options>]"
1922 <app_name> - name of application with (higher priority) or without path
1923 <fragments> - number of fragments or zero if auto
1924 <fragment_size> - size of fragment in bytes or zero if auto
1925 <options> - optional parameters
1926 - disable the application tries to open a pcm device for
1927 this channel but does not want to use it.
1928 (Cause a bug or mmap needs)
1929 It's good for Quake etc...
1930 - direct don't use plugins
1931 - block force block mode (rvplayer)
1932 - non-block force non-block mode
1933 - whole-frag write only whole fragments (optimization affecting
1935 - no-silence do not fill silence ahead to avoid clicks
1936 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1937 instead of filled blocks
1939 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1940 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1941 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1944 Early Buffer Allocation
1945 =======================
1947 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1948 sometimes it's too late to find such spaces when the driver module is
1949 actually loaded due to memory fragmentation. You can pre-allocate the
1950 PCM buffers by loading snd-page-alloc module and write commands to its
1951 proc file in prior, for example, in the early boot stage like
1952 /etc/init.d/*.local scripts.
1954 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1955 usage of page allocation. In writing, you can send the following
1956 commands to the snd-page-alloc driver:
1958 - add VENDOR DEVICE MASK SIZE BUFFERS
1960 VENDOR and DEVICE are PCI vendor and device IDs. They take
1961 integer numbers (0x prefix is needed for the hex).
1962 MASK is the PCI DMA mask. Pass 0 if not restricted.
1963 SIZE is the size of each buffer to allocate. You can pass
1964 k and m suffix for KB and MB. The max number is 16MB.
1965 BUFFERS is the number of buffers to allocate. It must be greater
1966 than 0. The max number is 4.
1970 This will erase the all pre-allocated buffers which are not in
1977 ALSA project homepage
1978 http://www.alsa-project.org
1980 ALSA Bug Tracking System
1981 https://bugtrack.alsa-project.org/bugs/
1984 mailto:alsa-devel@lists.sourceforge.net