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 hippo Hippo (ATI) with jack detection
805 hippo_1 Hippo (Benq) with jack detection
806 basic fixed pin assignment w/o SPDIF
807 auto auto-config reading BIOS (default)
810 3stack-dig 3-jack with SPDIF I/O
811 6stck-dig 6-jack digital with SPDIF I/O
813 auto auto-config reading BIOS (default)
816 3stack-dig 3-jack with SPDIF I/O
817 6stack-dig 6-jack digital with SPDIF I/O
818 3stack-6ch 3-jack 6-channel
819 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
820 6stack-dig-demo 6-jack digital for Intel demo board
821 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
822 medion Medion Laptops
824 targa-2ch-dig Targs/MSI with 2-channel
825 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
826 auto auto-config reading BIOS (default)
830 3stack-dig 3-jack with SPDIF I/O
831 6stack-dig 6-jack with SPDIF I/O
832 3stack-660 3-jack (for ALC660)
833 uniwill-m31 Uniwill M31 laptop
834 toshiba Toshiba laptop support
835 asus Asus laptop support
836 auto auto-config reading BIOS (default)
839 minimal 3-jack in back
840 min_fp 3-jack in back, 2-jack in front
841 full 6-jack in back, 2-jack in front
842 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
843 allout 5-jack in back, 2-jack in front, SPDIF out
844 auto auto-config reading BIOS (default)
847 basic 3-jack (default)
849 thinkpad Lenovo Thinkpad T60/X60/Z60
852 6stack 6-jack, separate surrounds (default)
853 3stack 3-stack, shared surrounds
854 laptop 2-channel only (FSC V2060, Samsung M50)
855 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
859 6stack-dig ditto with SPDIF
861 3stack-dig ditto with SPDIF
862 laptop 3-jack with hp-jack automute
863 laptop-dig ditto with SPDIF
864 auto auto-config reading BIOS (default)
866 STAC9200/9205/9220/9221/9254
869 5stack D945 5stack + SPDIF
871 STAC9227/9228/9229/927x
874 5stack D965 5stack + SPDIF
877 vaio Setup for VAIO FE550G/SZ110
878 vaio-ar Setup for VAIO AR
880 If the default configuration doesn't work and one of the above
881 matches with your device, report it together with the PCI
882 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
883 ML (see the section "Links and Addresses").
885 Note 2: If you get click noises on output, try the module option
886 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
887 register value without FIFO size correction as the current
888 DMA pointer. position_fix=2 will make the driver to use
889 the position buffer instead of reading SD_LPIB register.
890 (Usually SD_LPLIB register is more accurate than the
893 NB: If you get many "azx_get_response timeout" messages at
894 loading, it's likely a problem of interrupts (e.g. ACPI irq
895 routing). Try to boot with options like "pci=noacpi". Also, you
896 can try "single_cmd=1" module option. This will switch the
897 communication method between HDA controller and codecs to the
898 single immediate commands instead of CORB/RIRB. Basically, the
899 single command mode is provided only for BIOS, and you won't get
900 unsolicited events, too. But, at least, this works independently
901 from the irq. Remember this is a last resort, and should be
902 avoided as much as possible...
904 The power-management is supported.
909 Module for RME Hammerfall DSP audio interface(s)
911 This module supports multiple cards.
913 Note: The firmware data can be automatically loaded via hotplug
914 when CONFIG_FW_LOADER is set. Otherwise, you need to load
915 the firmware via hdsploader utility included in alsa-tools
917 The firmware data is found in alsa-firmware package.
919 Note: snd-page-alloc module does the job which snd-hammerfall-mem
920 module did formerly. It will allocate the buffers in advance
921 when any HDSP cards are found. To make the buffer
922 allocation sure, load snd-page-alloc module in the early
923 stage of boot sequence. See "Early Buffer Allocation"
929 Module for RME HDSP MADI board.
931 precise_ptr - Enable precise pointer, or disable.
932 line_outs_monitor - Send playback streams to analog outs by default.
933 enable_monitor - Enable Analog Out on Channel 63/64 by default.
935 See hdspm.txt for details.
940 Module for Envy24 (ICE1712) based PCI sound cards.
941 * MidiMan M Audio Delta 1010
942 * MidiMan M Audio Delta 1010LT
943 * MidiMan M Audio Delta DiO 2496
944 * MidiMan M Audio Delta 66
945 * MidiMan M Audio Delta 44
946 * MidiMan M Audio Delta 410
947 * MidiMan M Audio Audiophile 2496
953 * Hoontech SoundTrack DSP 24
954 * Hoontech SoundTrack DSP 24 Value
955 * Hoontech SoundTrack DSP 24 Media 7.1
956 * Event Electronics, EZ8
958 * Lionstracs, Mediastaton
960 model - Use the given board model, one of the following:
961 delta1010, dio2496, delta66, delta44, audiophile, delta410,
962 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
963 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
964 phase88, mediastation
965 omni - Omni I/O support for MidiMan M-Audio Delta44/66
966 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
967 in msec resolution, default value is 500 (0.5 sec)
969 This module supports multiple cards and autoprobe. Note: The consumer part
970 is not used with all Envy24 based cards (for example in the MidiMan Delta
973 Note: The supported board is detected by reading EEPROM or PCI
974 SSID (if EEPROM isn't available). You can override the
975 model by passing "model" module option in case that the
976 driver isn't configured properly or you want to try another
982 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
983 * MidiMan M Audio Revolution 5.1
984 * MidiMan M Audio Revolution 7.1
985 * MidiMan M Audio Audiophile 192
987 * TerraTec Aureon 5.1 Sky
988 * TerraTec Aureon 7.1 Space
989 * TerraTec Aureon 7.1 Universe
992 * AudioTrak Prodigy 7.1
993 * AudioTrak Prodigy 7.1LT
994 * AudioTrak Prodigy 192
996 * Albatron K8X800 Pro II
1003 model - Use the given board model, one of the following:
1004 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1005 prodigy192, aureon51, aureon71, universe, ap192,
1006 k8x800, phase22, phase28, ms300, av710
1008 This module supports multiple cards and autoprobe.
1010 Note: The supported board is detected by reading EEPROM or PCI
1011 SSID (if EEPROM isn't available). You can override the
1012 model by passing "model" module option in case that the
1013 driver isn't configured properly or you want to try another
1019 Module for Echoaudio Indigo
1021 This module supports multiple cards.
1022 The driver requires the firmware loader support on kernel.
1027 Module for Echoaudio Indigo DJ
1029 This module supports multiple cards.
1030 The driver requires the firmware loader support on kernel.
1035 Module for Echoaudio Indigo IO
1037 This module supports multiple cards.
1038 The driver requires the firmware loader support on kernel.
1043 Module for AC'97 motherboards from Intel and compatibles.
1044 * Intel i810/810E, i815, i820, i830, i84x, MX440
1045 ICH5, ICH6, ICH7, ESB2
1046 * SiS 7012 (SiS 735)
1047 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1049 * AMD AMD768, AMD8111
1052 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1053 ac97_quirk - AC'97 workaround for strange hardware
1054 See "AC97 Quirk Option" section below.
1055 buggy_irq - Enable workaround for buggy interrupts on some
1056 motherboards (default yes on nForce chips,
1058 buggy_semaphore - Enable workaround for hardwares with buggy
1059 semaphores (e.g. on some ASUS laptops)
1062 This module supports one chip and autoprobe.
1064 Note: the latest driver supports auto-detection of chip clock.
1065 if you still encounter too fast playback, specify the clock
1066 explicitly via the module option "ac97_clock=41194".
1068 Joystick/MIDI ports are not supported by this driver. If your
1069 motherboard has these devices, use the ns558 or snd-mpu401
1070 modules, respectively.
1072 The power-management is supported.
1074 Module snd-intel8x0m
1075 --------------------
1077 Module for Intel ICH (i8x0) chipset MC97 modems.
1078 * Intel i810/810E, i815, i820, i830, i84x, MX440
1080 * SiS 7013 (SiS 735)
1081 * NVidia NForce, NForce2, NForce2s, NForce3
1085 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1087 This module supports one card and autoprobe.
1089 Note: The default index value of this module is -2, i.e. the first
1092 The power-management is supported.
1094 Module snd-interwave
1095 --------------------
1097 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1098 and other sound cards based on AMD InterWave (tm) chip.
1100 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1101 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1102 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1103 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1104 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1105 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1106 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1107 effect - 1 = InterWave effects enable (default 0);
1110 This module supports multiple cards, autoprobe and ISA PnP.
1112 Module snd-interwave-stb
1113 ------------------------
1115 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1116 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1117 circuit for extended control of bass, treble and master volume.
1119 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1120 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1121 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1122 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1123 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1124 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1125 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1126 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1127 effect - 1 = InterWave effects enable (default 0);
1130 This module supports multiple cards, autoprobe and ISA PnP.
1135 Module for Korg 1212 IO PCI card
1137 This module supports multiple cards.
1142 Module for Echoaudio Layla20
1144 This module supports multiple cards.
1145 The driver requires the firmware loader support on kernel.
1150 Module for Echoaudio Layla24
1152 This module supports multiple cards.
1153 The driver requires the firmware loader support on kernel.
1158 Module for Allegro/Maestro3 chips
1160 external_amp - enable external amp (enabled by default)
1161 amp_gpio - GPIO pin number for external amp (0-15) or
1162 -1 for default pin (8 for allegro, 1 for
1165 This module supports autoprobe and multiple chips.
1167 Note: the binding of amplifier is dependent on hardware.
1168 If there is no sound even though all channels are unmuted, try to
1169 specify other gpio connection via amp_gpio option.
1170 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1173 The power-management is supported.
1178 Module for Echoaudio Mia
1180 This module supports multiple cards.
1181 The driver requires the firmware loader support on kernel.
1186 Module for Miro soundcards: miroSOUND PCM 1 pro,
1188 miroSOUND PCM 20 Radio.
1190 port - Port # (0x530,0x604,0xe80,0xf40)
1191 irq - IRQ # (5,7,9,10,11)
1192 dma1 - 1st dma # (0,1,3)
1193 dma2 - 2nd dma # (0,1)
1194 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1195 mpu_irq - MPU-401 irq # (5,7,9,10)
1196 fm_port - FM Port # (0x388)
1197 wss - enable WSS mode
1198 ide - enable onboard ide support
1203 Module for Digigram miXart8 sound cards.
1205 This module supports multiple cards.
1206 Note: One miXart8 board will be represented as 4 alsa cards.
1207 See MIXART.txt for details.
1209 When the driver is compiled as a module and the hotplug firmware
1210 is supported, the firmware data is loaded via hotplug automatically.
1211 Install the necessary firmware files in alsa-firmware package.
1212 When no hotplug fw loader is available, you need to load the
1213 firmware via mixartloader utility in alsa-tools package.
1218 Module for Echoaudio Mona
1220 This module supports multiple cards.
1221 The driver requires the firmware loader support on kernel.
1226 Module for MPU-401 UART devices.
1228 port - port number or -1 (disable)
1229 irq - IRQ number or -1 (disable)
1230 pnp - PnP detection - 0 = disable, 1 = enable (default)
1232 This module supports multiple devices and PnP.
1237 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1240 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1241 irq - IRQ # for MTPAV (7,5, default=7)
1242 hwports - number of supported hardware ports, default=8.
1244 Module supports only 1 card. This module has no enable option.
1249 Module for Ego Systems (ESI) Miditerminal 4140
1251 This module supports multiple devices.
1252 Requires parport (CONFIG_PARPORT).
1257 Module for NeoMagic NM256AV/ZX chips
1259 playback_bufsize - max playback frame size in kB (4-128kB)
1260 capture_bufsize - max capture frame size in kB (4-128kB)
1261 force_ac97 - 0 or 1 (disabled by default)
1262 buffer_top - specify buffer top address
1263 use_cache - 0 or 1 (disabled by default)
1264 vaio_hack - alias buffer_top=0x25a800
1265 reset_workaround - enable AC97 RESET workaround for some laptops
1266 reset_workaround2 - enable extended AC97 RESET workaround for some
1269 This module supports one chip and autoprobe.
1271 The power-management is supported.
1273 Note: on some notebooks the buffer address cannot be detected
1274 automatically, or causes hang-up during initialization.
1275 In such a case, specify the buffer top address explicitly via
1276 the buffer_top option.
1278 Sony F250: buffer_top=0x25a800
1279 Sony F270: buffer_top=0x272800
1280 The driver supports only ac97 codec. It's possible to force
1281 to initialize/use ac97 although it's not detected. In such a
1282 case, use force_ac97=1 option - but *NO* guarantee whether it
1285 Note: The NM256 chip can be linked internally with non-AC97
1286 codecs. This driver supports only the AC97 codec, and won't work
1287 with machines with other (most likely CS423x or OPL3SAx) chips,
1288 even though the device is detected in lspci. In such a case, try
1289 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1290 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1291 and proper hardware parameters in the case without ISA PnP.
1293 Note: some laptops need a workaround for AC97 RESET. For the
1294 known hardware like Dell Latitude LS and Sony PCG-F305, this
1295 workaround is enabled automatically. For other laptops with a
1296 hard freeze, you can try reset_workaround=1 option.
1298 Note: Dell Latitude CSx laptops have another problem regarding
1299 AC97 RESET. On these laptops, reset_workaround2 option is
1300 turned on as default. This option is worth to try if the
1301 previous reset_workaround option doesn't help.
1303 Note: This driver is really crappy. It's a porting from the
1304 OSS driver, which is a result of black-magic reverse engineering.
1305 The detection of codec will fail if the driver is loaded *after*
1306 X-server as described above. You might be able to force to load
1307 the module, but it may result in hang-up. Hence, make sure that
1308 you load this module *before* X if you encounter this kind of
1314 Module for Yamaha OPL3-SA2/SA3 sound cards.
1316 port - control port # for OPL3-SA chip (0x370)
1317 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1318 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1319 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1320 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1321 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1322 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1323 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1324 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1326 This module supports multiple cards and ISA PnP. It does not support
1327 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1329 The power-management is supported.
1331 Module snd-opti92x-ad1848
1332 -------------------------
1334 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1335 Module works with OAK Mozart cards as well.
1337 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1338 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1339 fm_port - port # for OPL3 device (0x388)
1340 irq - IRQ # for WSS chip (5,7,9,10,11)
1341 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1342 dma1 - first DMA # for WSS chip (0,1,3)
1344 This module supports only one card, autoprobe and PnP.
1346 Module snd-opti92x-cs4231
1347 -------------------------
1349 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1351 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1352 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1353 fm_port - port # for OPL3 device (0x388)
1354 irq - IRQ # for WSS chip (5,7,9,10,11)
1355 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1356 dma1 - first DMA # for WSS chip (0,1,3)
1357 dma2 - second DMA # for WSS chip (0,1,3)
1359 This module supports only one card, autoprobe and PnP.
1364 Module for sound cards based on OPTi 82c93x chips.
1366 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1367 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1368 fm_port - port # for OPL3 device (0x388)
1369 irq - IRQ # for WSS chip (5,7,9,10,11)
1370 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1371 dma1 - first DMA # for WSS chip (0,1,3)
1372 dma2 - second DMA # for WSS chip (0,1,3)
1374 This module supports only one card, autoprobe and PnP.
1379 Module for Digigram PCXHR boards
1381 This module supports multiple cards.
1383 Module snd-powermac (on ppc only)
1384 ---------------------------------
1386 Module for PowerMac, iMac and iBook on-board soundchips
1388 enable_beep - enable beep using PCM (enabled as default)
1390 Module supports autoprobe a chip.
1392 Note: the driver may have problems regarding endianess.
1394 The power-management is supported.
1396 Module snd-pxa2xx-ac97 (on arm only)
1397 ------------------------------------
1399 Module for AC97 driver for the Intel PXA2xx chip
1401 For ARM architecture only.
1403 The power-management is supported.
1408 Module for Conexant Riptide chip
1410 joystick_port - Joystick port # (default: 0x200)
1411 mpu_port - MPU401 port # (default: 0x330)
1412 opl3_port - OPL3 port # (default: 0x388)
1414 This module supports multiple cards.
1415 The driver requires the firmware loader support on kernel.
1416 You need to install the firmware file "riptide.hex" to the standard
1417 firmware path (e.g. /lib/firmware).
1422 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1423 Prodif96 and Prodif Gold) sound cards.
1425 This module supports multiple cards.
1430 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1432 This module supports multiple cards.
1437 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1439 precise_ptr - Enable precise pointer (doesn't work reliably).
1442 This module supports multiple cards.
1444 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1445 module did formerly. It will allocate the buffers in advance
1446 when any RME9652 cards are found. To make the buffer
1447 allocation sure, load snd-page-alloc module in the early
1448 stage of boot sequence. See "Early Buffer Allocation"
1451 Module snd-sa11xx-uda1341 (on arm only)
1452 ---------------------------------------
1454 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1456 Module supports only one card.
1457 Module has no enable and index options.
1459 The power-management is supported.
1464 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1468 port - port # for SB DSP chip (0x220,0x240,0x260)
1469 irq - IRQ # for SB DSP chip (5,7,9,10)
1470 dma8 - DMA # for SB DSP chip (1,3)
1472 This module supports multiple cards and autoprobe.
1474 The power-management is supported.
1476 Module snd-sb16 and snd-sbawe
1477 -----------------------------
1479 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1480 SoundBlaster AWE 32 (PnP),
1481 SoundBlaster AWE 64 PnP
1483 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1484 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1485 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1486 (snd-sbawe module only)
1487 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1488 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1489 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1490 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1491 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1492 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1494 This module supports multiple cards, autoprobe and ISA PnP.
1496 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1497 disable 16bit DMA with dma16 = -1 module parameter.
1498 Also, all Sound Blaster 16 type cards can operate in 16-bit
1499 half duplex mode through 8-bit DMA channel by disabling their
1502 The power-management is supported.
1507 Module for Aztech Sound Galaxy sound card.
1509 sbport - Port # for SB16 interface (0x220,0x240)
1510 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1511 irq - IRQ # (7,9,10,11)
1514 This module supports multiple cards.
1516 The power-management is supported.
1521 Module for ENSONIQ SoundScape PnP cards.
1523 port - Port # (PnP setup)
1524 irq - IRQ # (PnP setup)
1525 mpu_irq - MPU-401 IRQ # (PnP setup)
1526 dma - DMA # (PnP setup)
1528 This module supports multiple cards. ISA PnP must be enabled.
1529 You need sscape_ctl tool in alsa-tools package for loading
1532 Module snd-sun-amd7930 (on sparc only)
1533 --------------------------------------
1535 Module for AMD7930 sound chips found on Sparcs.
1537 This module supports multiple cards.
1539 Module snd-sun-cs4231 (on sparc only)
1540 -------------------------------------
1542 Module for CS4231 sound chips found on Sparcs.
1544 This module supports multiple cards.
1546 Module snd-sun-dbri (on sparc only)
1547 -----------------------------------
1549 Module for DBRI sound chips found on Sparcs.
1551 This module supports multiple cards.
1553 Module snd-wavefront
1554 --------------------
1556 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1558 cs4232_pcm_port - Port # for CS4232 PCM interface.
1559 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1560 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1561 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1562 use_cs4232_midi - Use CS4232 MPU-401 interface
1563 (inaccessibly located inside your computer)
1564 ics2115_port - Port # for ICS2115
1565 ics2115_irq - IRQ # for ICS2115
1566 fm_port - FM OPL-3 Port #
1567 dma1 - DMA1 # for CS4232 PCM interface.
1568 dma2 - DMA2 # for CS4232 PCM interface.
1569 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1571 This module supports multiple cards and ISA PnP.
1573 Module snd-sonicvibes
1574 ---------------------
1576 Module for S3 SonicVibes PCI sound cards.
1577 * PINE Schubert 32 PCI
1579 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1580 - SoundCard must have onboard SRAM for this.
1581 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1583 This module supports multiple cards and autoprobe.
1585 Module snd-serial-u16550
1586 ------------------------
1588 Module for UART16550A serial MIDI ports.
1590 port - port # for UART16550A chip
1591 irq - IRQ # for UART16550A chip, -1 = poll mode
1592 speed - speed in bauds (9600,19200,38400,57600,115200)
1594 base - base for divisor in bauds (57600,115200,230400,460800)
1596 outs - number of MIDI ports in a serial port (1-4)
1598 adaptor - Type of adaptor.
1599 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1600 3 = MS-124W M/B, 4 = Generic
1602 This module supports multiple cards. This module does not support autoprobe
1603 thus the main port must be specified!!! Other options are optional.
1608 Module for Trident 4DWave DX/NX sound cards.
1609 * Best Union Miss Melody 4DWave PCI
1611 * Warpspeed ONSpeed 4DWave PCI
1614 * CHIC True Sound 4Dwave
1615 * Shark Predator4D-PCI
1616 * Jaton SonicWave 4D
1618 pcm_channels - max channels (voices) reserved for PCM
1619 wavetable_size - max wavetable size in kB (4-?kb)
1621 This module supports multiple cards and autoprobe.
1623 The power-management is supported.
1625 Module snd-usb-audio
1626 --------------------
1628 Module for USB audio and USB MIDI devices.
1630 vid - Vendor ID for the device (optional)
1631 pid - Product ID for the device (optional)
1632 device_setup - Device specific magic number (optional)
1633 - Influence depends on the device
1636 This module supports multiple devices, autoprobe and hotplugging.
1638 Module snd-usb-usx2y
1639 --------------------
1641 Module for Tascam USB US-122, US-224 and US-428 devices.
1643 This module supports multiple devices, autoprobe and hotplugging.
1645 Note: you need to load the firmware via usx2yloader utility included
1646 in alsa-tools and alsa-firmware packages.
1651 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1652 8233A, 8233C, 8235, 8237 (south) bridge.
1654 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1656 joystick - Enable joystick (default off) [VIA686A/686B only]
1657 ac97_clock - AC'97 codec clock base (default 48000Hz)
1658 dxs_support - support DXS channels,
1659 0 = auto (default), 1 = enable, 2 = disable,
1660 3 = 48k only, 4 = no VRA, 5 = enable any sample
1661 rate and different sample rates on different
1663 [VIA8233/C, 8235, 8237 only]
1664 ac97_quirk - AC'97 workaround for strange hardware
1665 See "AC97 Quirk Option" section below.
1667 This module supports one chip and autoprobe.
1669 Note: on some SMP motherboards like MSI 694D the interrupts might
1670 not be generated properly. In such a case, please try to
1671 set the SMP (or MPS) version on BIOS to 1.1 instead of
1672 default value 1.4. Then the interrupt number will be
1673 assigned under 15. You might also upgrade your BIOS.
1675 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1676 channels as the first PCM. On these channels, up to 4
1677 streams can be played at the same time, and the controller
1678 can perform sample rate conversion with separate rates for
1680 As default (dxs_support = 0), 48k fixed rate is chosen
1681 except for the known devices since the output is often
1682 noisy except for 48k on some mother boards due to the
1684 Please try once dxs_support=5 and if it works on other
1685 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1686 know the PCI subsystem vendor/device id's (output of
1688 If dxs_support=5 does not work, try dxs_support=4; if it
1689 doesn't work too, try dxs_support=1. (dxs_support=1 is
1690 usually for old motherboards. The correct implemented
1691 board should work with 4 or 5.) If it still doesn't
1692 work and the default setting is ok, dxs_support=3 is the
1693 right choice. If the default setting doesn't work at all,
1694 try dxs_support=2 to disable the DXS channels.
1695 In any cases, please let us know the result and the
1696 subsystem vendor/device ids. See "Links and Addresses"
1699 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1700 additionally. The mpu_port option is for VIA686 chips only.
1702 The power-management is supported.
1704 Module snd-via82xx-modem
1705 ------------------------
1707 Module for VIA82xx AC97 modem
1709 ac97_clock - AC'97 codec clock base (default 48000Hz)
1711 This module supports one card and autoprobe.
1713 Note: The default index value of this module is -2, i.e. the first
1716 The power-management is supported.
1721 Module for virtual rawmidi devices.
1722 This module creates virtual rawmidi devices which communicate
1723 to the corresponding ALSA sequencer ports.
1725 midi_devs - MIDI devices # (1-4, default=4)
1727 This module supports multiple cards.
1732 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1734 mic - Enable Microphone on V222 Mic (NYI)
1735 ibl - Capture IBL size. (default = 0, minimum size)
1737 This module supports multiple cards.
1739 When the driver is compiled as a module and the hotplug firmware
1740 is supported, the firmware data is loaded via hotplug automatically.
1741 Install the necessary firmware files in alsa-firmware package.
1742 When no hotplug fw loader is available, you need to load the
1743 firmware via vxloader utility in alsa-tools package. To invoke
1744 vxloader automatically, add the following to /etc/modprobe.conf
1746 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1748 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1749 /etc/modules.conf, instead.)
1750 IBL size defines the interrupts period for PCM. The smaller size
1751 gives smaller latency but leads to more CPU consumption, too.
1752 The size is usually aligned to 126. As default (=0), the smallest
1753 size is chosen. The possible IBL values can be found in
1754 /proc/asound/cardX/vx-status proc file.
1756 The power-management is supported.
1761 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1763 ibl - Capture IBL size. (default = 0, minimum size)
1765 This module supports multiple cards. The module is compiled only when
1766 PCMCIA is supported on kernel.
1768 With the older 2.6.x kernel, to activate the driver via the card
1769 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1770 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1771 longer require a config file.
1773 When the driver is compiled as a module and the hotplug firmware
1774 is supported, the firmware data is loaded via hotplug automatically.
1775 Install the necessary firmware files in alsa-firmware package.
1776 When no hotplug fw loader is available, you need to load the
1777 firmware via vxloader utility in alsa-tools package.
1779 About capture IBL, see the description of snd-vx222 module.
1781 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1784 The power-management is supported.
1789 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1791 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1792 1 (auto-detect for YMF744/754 only)
1793 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1794 1 (auto-detect for YMF744/754 only)
1795 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1797 rear_switch - enable shared rear/line-in switch (bool)
1799 This module supports autoprobe and multiple chips.
1801 The power-management is supported.
1803 Module snd-pdaudiocf
1804 --------------------
1806 Module for Sound Core PDAudioCF sound card.
1808 The power-management is supported.
1814 The ac97_quirk option is used to enable/override the workaround for
1815 specific devices on drivers for on-board AC'97 controllers like
1816 snd-intel8x0. Some hardware have swapped output pins between Master
1817 and Headphone, or Surround (thanks to confusion of AC'97
1818 specifications from version to version :-)
1820 The driver provides the auto-detection of known problematic devices,
1821 but some might be unknown or wrongly detected. In such a case, pass
1822 the proper value with this option.
1824 The following strings are accepted:
1825 - default Don't override the default setting
1826 - none Disable the quirk
1827 - hp_only Bind Master and Headphone controls as a single control
1828 - swap_hp Swap headphone and master controls
1829 - swap_surround Swap master and surround controls
1830 - ad_sharing For AD1985, turn on OMS bit and use headphone
1831 - alc_jack For ALC65x, turn on the jack sense mode
1832 - inv_eapd Inverted EAPD implementation
1833 - mute_led Bind EAPD bit for turning on/off mute LED
1835 For backward compatibility, the corresponding integer value -1, 0,
1836 ... are accepted, too.
1838 For example, if "Master" volume control has no effect on your device
1839 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1842 Configuring Non-ISAPNP Cards
1843 ============================
1845 When the kernel is configured with ISA-PnP support, the modules
1846 supporting the isapnp cards will have module options "isapnp".
1847 If this option is set, *only* the ISA-PnP devices will be probed.
1848 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1849 together with the proper i/o and irq configuration.
1851 When the kernel is configured without ISA-PnP support, isapnp option
1852 will be not built in.
1855 Module Autoloading Support
1856 ==========================
1858 The ALSA drivers can be loaded automatically on demand by defining
1859 module aliases. The string 'snd-card-%1' is requested for ALSA native
1860 devices where %i is sound card number from zero to seven.
1862 To auto-load an ALSA driver for OSS services, define the string
1863 'sound-slot-%i' where %i means the slot number for OSS, which
1864 corresponds to the card index of ALSA. Usually, define this
1865 as the same card module.
1867 An example configuration for a single emu10k1 card is like below:
1868 ----- /etc/modprobe.conf
1869 alias snd-card-0 snd-emu10k1
1870 alias sound-slot-0 snd-emu10k1
1871 ----- /etc/modprobe.conf
1873 The available number of auto-loaded sound cards depends on the module
1874 option "cards_limit" of snd module. As default it's set to 1.
1875 To enable the auto-loading of multiple cards, specify the number of
1876 sound cards in that option.
1878 When multiple cards are available, it'd better to specify the index
1879 number for each card via module option, too, so that the order of
1880 cards is kept consistent.
1882 An example configuration for two sound cards is like below:
1884 ----- /etc/modprobe.conf
1886 options snd cards_limit=2
1887 alias snd-card-0 snd-interwave
1888 alias snd-card-1 snd-ens1371
1889 options snd-interwave index=0
1890 options snd-ens1371 index=1
1892 alias sound-slot-0 snd-interwave
1893 alias sound-slot-1 snd-ens1371
1894 ----- /etc/modprobe.conf
1896 In this example, the interwave card is always loaded as the first card
1897 (index 0) and ens1371 as the second (index 1).
1900 ALSA PCM devices to OSS devices mapping
1901 =======================================
1903 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1904 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1905 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1906 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1907 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1908 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1909 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1910 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1911 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1913 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1914 sound card number and second means device number. The ALSA devices
1915 have either 'c' or 'p' suffix indicating the direction, capture and
1916 playback, respectively.
1918 Please note that the device mapping above may be varied via the module
1919 options of snd-pcm-oss module.
1922 Proc interfaces (/proc/asound)
1923 ==============================
1925 /proc/asound/card#/pcm#[cp]/oss
1926 -------------------------------
1927 String "erase" - erase all additional informations about OSS applications
1928 String "<app_name> <fragments> <fragment_size> [<options>]"
1930 <app_name> - name of application with (higher priority) or without path
1931 <fragments> - number of fragments or zero if auto
1932 <fragment_size> - size of fragment in bytes or zero if auto
1933 <options> - optional parameters
1934 - disable the application tries to open a pcm device for
1935 this channel but does not want to use it.
1936 (Cause a bug or mmap needs)
1937 It's good for Quake etc...
1938 - direct don't use plugins
1939 - block force block mode (rvplayer)
1940 - non-block force non-block mode
1941 - whole-frag write only whole fragments (optimization affecting
1943 - no-silence do not fill silence ahead to avoid clicks
1944 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1945 instead of filled blocks
1947 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1948 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1949 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1952 Early Buffer Allocation
1953 =======================
1955 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1956 sometimes it's too late to find such spaces when the driver module is
1957 actually loaded due to memory fragmentation. You can pre-allocate the
1958 PCM buffers by loading snd-page-alloc module and write commands to its
1959 proc file in prior, for example, in the early boot stage like
1960 /etc/init.d/*.local scripts.
1962 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1963 usage of page allocation. In writing, you can send the following
1964 commands to the snd-page-alloc driver:
1966 - add VENDOR DEVICE MASK SIZE BUFFERS
1968 VENDOR and DEVICE are PCI vendor and device IDs. They take
1969 integer numbers (0x prefix is needed for the hex).
1970 MASK is the PCI DMA mask. Pass 0 if not restricted.
1971 SIZE is the size of each buffer to allocate. You can pass
1972 k and m suffix for KB and MB. The max number is 16MB.
1973 BUFFERS is the number of buffers to allocate. It must be greater
1974 than 0. The max number is 4.
1978 This will erase the all pre-allocated buffers which are not in
1985 ALSA project homepage
1986 http://www.alsa-project.org
1988 ALSA Bug Tracking System
1989 https://bugtrack.alsa-project.org/bugs/
1992 mailto:alsa-devel@lists.sourceforge.net