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)
868 test for testing/debugging purpose, almost all controls
869 can be adjusted. Appearing only when compiled with
873 laptop Basic Laptop config
874 laptop-hp Laptop config for some HP models (subdevice 30A5)
875 laptop-eapd Laptop config with EAPD support
876 test for testing/debugging purpose, almost all controls
877 can be adjusted. Appearing only when compiled with
880 STAC9200/9205/9220/9221/9254
883 5stack D945 5stack + SPDIF
885 STAC9227/9228/9229/927x
888 5stack D965 5stack + SPDIF
891 vaio Setup for VAIO FE550G/SZ110
892 vaio-ar Setup for VAIO AR
894 If the default configuration doesn't work and one of the above
895 matches with your device, report it together with the PCI
896 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
897 ML (see the section "Links and Addresses").
899 Note 2: If you get click noises on output, try the module option
900 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
901 register value without FIFO size correction as the current
902 DMA pointer. position_fix=2 will make the driver to use
903 the position buffer instead of reading SD_LPIB register.
904 (Usually SD_LPLIB register is more accurate than the
907 NB: If you get many "azx_get_response timeout" messages at
908 loading, it's likely a problem of interrupts (e.g. ACPI irq
909 routing). Try to boot with options like "pci=noacpi". Also, you
910 can try "single_cmd=1" module option. This will switch the
911 communication method between HDA controller and codecs to the
912 single immediate commands instead of CORB/RIRB. Basically, the
913 single command mode is provided only for BIOS, and you won't get
914 unsolicited events, too. But, at least, this works independently
915 from the irq. Remember this is a last resort, and should be
916 avoided as much as possible...
918 The power-management is supported.
923 Module for RME Hammerfall DSP audio interface(s)
925 This module supports multiple cards.
927 Note: The firmware data can be automatically loaded via hotplug
928 when CONFIG_FW_LOADER is set. Otherwise, you need to load
929 the firmware via hdsploader utility included in alsa-tools
931 The firmware data is found in alsa-firmware package.
933 Note: snd-page-alloc module does the job which snd-hammerfall-mem
934 module did formerly. It will allocate the buffers in advance
935 when any HDSP cards are found. To make the buffer
936 allocation sure, load snd-page-alloc module in the early
937 stage of boot sequence. See "Early Buffer Allocation"
943 Module for RME HDSP MADI board.
945 precise_ptr - Enable precise pointer, or disable.
946 line_outs_monitor - Send playback streams to analog outs by default.
947 enable_monitor - Enable Analog Out on Channel 63/64 by default.
949 See hdspm.txt for details.
954 Module for Envy24 (ICE1712) based PCI sound cards.
955 * MidiMan M Audio Delta 1010
956 * MidiMan M Audio Delta 1010LT
957 * MidiMan M Audio Delta DiO 2496
958 * MidiMan M Audio Delta 66
959 * MidiMan M Audio Delta 44
960 * MidiMan M Audio Delta 410
961 * MidiMan M Audio Audiophile 2496
967 * Hoontech SoundTrack DSP 24
968 * Hoontech SoundTrack DSP 24 Value
969 * Hoontech SoundTrack DSP 24 Media 7.1
970 * Event Electronics, EZ8
972 * Lionstracs, Mediastaton
974 model - Use the given board model, one of the following:
975 delta1010, dio2496, delta66, delta44, audiophile, delta410,
976 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
977 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
978 phase88, mediastation
979 omni - Omni I/O support for MidiMan M-Audio Delta44/66
980 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
981 in msec resolution, default value is 500 (0.5 sec)
983 This module supports multiple cards and autoprobe. Note: The consumer part
984 is not used with all Envy24 based cards (for example in the MidiMan Delta
987 Note: The supported board is detected by reading EEPROM or PCI
988 SSID (if EEPROM isn't available). You can override the
989 model by passing "model" module option in case that the
990 driver isn't configured properly or you want to try another
996 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
997 * MidiMan M Audio Revolution 5.1
998 * MidiMan M Audio Revolution 7.1
999 * MidiMan M Audio Audiophile 192
1001 * TerraTec Aureon 5.1 Sky
1002 * TerraTec Aureon 7.1 Space
1003 * TerraTec Aureon 7.1 Universe
1006 * AudioTrak Prodigy 7.1
1007 * AudioTrak Prodigy 7.1LT
1008 * AudioTrak Prodigy 192
1010 * Albatron K8X800 Pro II
1011 * Chaintech ZNF3-150
1012 * Chaintech ZNF3-250
1017 model - Use the given board model, one of the following:
1018 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1019 prodigy192, aureon51, aureon71, universe, ap192,
1020 k8x800, phase22, phase28, ms300, av710
1022 This module supports multiple cards and autoprobe.
1024 Note: The supported board is detected by reading EEPROM or PCI
1025 SSID (if EEPROM isn't available). You can override the
1026 model by passing "model" module option in case that the
1027 driver isn't configured properly or you want to try another
1033 Module for Echoaudio Indigo
1035 This module supports multiple cards.
1036 The driver requires the firmware loader support on kernel.
1041 Module for Echoaudio Indigo DJ
1043 This module supports multiple cards.
1044 The driver requires the firmware loader support on kernel.
1049 Module for Echoaudio Indigo IO
1051 This module supports multiple cards.
1052 The driver requires the firmware loader support on kernel.
1057 Module for AC'97 motherboards from Intel and compatibles.
1058 * Intel i810/810E, i815, i820, i830, i84x, MX440
1059 ICH5, ICH6, ICH7, ESB2
1060 * SiS 7012 (SiS 735)
1061 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1063 * AMD AMD768, AMD8111
1066 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1067 ac97_quirk - AC'97 workaround for strange hardware
1068 See "AC97 Quirk Option" section below.
1069 buggy_irq - Enable workaround for buggy interrupts on some
1070 motherboards (default yes on nForce chips,
1072 buggy_semaphore - Enable workaround for hardwares with buggy
1073 semaphores (e.g. on some ASUS laptops)
1076 This module supports one chip and autoprobe.
1078 Note: the latest driver supports auto-detection of chip clock.
1079 if you still encounter too fast playback, specify the clock
1080 explicitly via the module option "ac97_clock=41194".
1082 Joystick/MIDI ports are not supported by this driver. If your
1083 motherboard has these devices, use the ns558 or snd-mpu401
1084 modules, respectively.
1086 The power-management is supported.
1088 Module snd-intel8x0m
1089 --------------------
1091 Module for Intel ICH (i8x0) chipset MC97 modems.
1092 * Intel i810/810E, i815, i820, i830, i84x, MX440
1094 * SiS 7013 (SiS 735)
1095 * NVidia NForce, NForce2, NForce2s, NForce3
1099 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1101 This module supports one card and autoprobe.
1103 Note: The default index value of this module is -2, i.e. the first
1106 The power-management is supported.
1108 Module snd-interwave
1109 --------------------
1111 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1112 and other sound cards based on AMD InterWave (tm) chip.
1114 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1115 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1116 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1117 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1118 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1119 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1120 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1121 effect - 1 = InterWave effects enable (default 0);
1124 This module supports multiple cards, autoprobe and ISA PnP.
1126 Module snd-interwave-stb
1127 ------------------------
1129 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1130 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1131 circuit for extended control of bass, treble and master volume.
1133 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1134 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1135 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1136 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1137 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1138 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1139 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1140 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1141 effect - 1 = InterWave effects enable (default 0);
1144 This module supports multiple cards, autoprobe and ISA PnP.
1149 Module for Korg 1212 IO PCI card
1151 This module supports multiple cards.
1156 Module for Echoaudio Layla20
1158 This module supports multiple cards.
1159 The driver requires the firmware loader support on kernel.
1164 Module for Echoaudio Layla24
1166 This module supports multiple cards.
1167 The driver requires the firmware loader support on kernel.
1172 Module for Allegro/Maestro3 chips
1174 external_amp - enable external amp (enabled by default)
1175 amp_gpio - GPIO pin number for external amp (0-15) or
1176 -1 for default pin (8 for allegro, 1 for
1179 This module supports autoprobe and multiple chips.
1181 Note: the binding of amplifier is dependent on hardware.
1182 If there is no sound even though all channels are unmuted, try to
1183 specify other gpio connection via amp_gpio option.
1184 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1187 The power-management is supported.
1192 Module for Echoaudio Mia
1194 This module supports multiple cards.
1195 The driver requires the firmware loader support on kernel.
1200 Module for Miro soundcards: miroSOUND PCM 1 pro,
1202 miroSOUND PCM 20 Radio.
1204 port - Port # (0x530,0x604,0xe80,0xf40)
1205 irq - IRQ # (5,7,9,10,11)
1206 dma1 - 1st dma # (0,1,3)
1207 dma2 - 2nd dma # (0,1)
1208 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1209 mpu_irq - MPU-401 irq # (5,7,9,10)
1210 fm_port - FM Port # (0x388)
1211 wss - enable WSS mode
1212 ide - enable onboard ide support
1217 Module for Digigram miXart8 sound cards.
1219 This module supports multiple cards.
1220 Note: One miXart8 board will be represented as 4 alsa cards.
1221 See MIXART.txt for details.
1223 When the driver is compiled as a module and the hotplug firmware
1224 is supported, the firmware data is loaded via hotplug automatically.
1225 Install the necessary firmware files in alsa-firmware package.
1226 When no hotplug fw loader is available, you need to load the
1227 firmware via mixartloader utility in alsa-tools package.
1232 Module for Echoaudio Mona
1234 This module supports multiple cards.
1235 The driver requires the firmware loader support on kernel.
1240 Module for MPU-401 UART devices.
1242 port - port number or -1 (disable)
1243 irq - IRQ number or -1 (disable)
1244 pnp - PnP detection - 0 = disable, 1 = enable (default)
1246 This module supports multiple devices and PnP.
1251 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1254 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1255 irq - IRQ # for MTPAV (7,5, default=7)
1256 hwports - number of supported hardware ports, default=8.
1258 Module supports only 1 card. This module has no enable option.
1263 Module for Ego Systems (ESI) Miditerminal 4140
1265 This module supports multiple devices.
1266 Requires parport (CONFIG_PARPORT).
1271 Module for NeoMagic NM256AV/ZX chips
1273 playback_bufsize - max playback frame size in kB (4-128kB)
1274 capture_bufsize - max capture frame size in kB (4-128kB)
1275 force_ac97 - 0 or 1 (disabled by default)
1276 buffer_top - specify buffer top address
1277 use_cache - 0 or 1 (disabled by default)
1278 vaio_hack - alias buffer_top=0x25a800
1279 reset_workaround - enable AC97 RESET workaround for some laptops
1280 reset_workaround2 - enable extended AC97 RESET workaround for some
1283 This module supports one chip and autoprobe.
1285 The power-management is supported.
1287 Note: on some notebooks the buffer address cannot be detected
1288 automatically, or causes hang-up during initialization.
1289 In such a case, specify the buffer top address explicitly via
1290 the buffer_top option.
1292 Sony F250: buffer_top=0x25a800
1293 Sony F270: buffer_top=0x272800
1294 The driver supports only ac97 codec. It's possible to force
1295 to initialize/use ac97 although it's not detected. In such a
1296 case, use force_ac97=1 option - but *NO* guarantee whether it
1299 Note: The NM256 chip can be linked internally with non-AC97
1300 codecs. This driver supports only the AC97 codec, and won't work
1301 with machines with other (most likely CS423x or OPL3SAx) chips,
1302 even though the device is detected in lspci. In such a case, try
1303 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1304 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1305 and proper hardware parameters in the case without ISA PnP.
1307 Note: some laptops need a workaround for AC97 RESET. For the
1308 known hardware like Dell Latitude LS and Sony PCG-F305, this
1309 workaround is enabled automatically. For other laptops with a
1310 hard freeze, you can try reset_workaround=1 option.
1312 Note: Dell Latitude CSx laptops have another problem regarding
1313 AC97 RESET. On these laptops, reset_workaround2 option is
1314 turned on as default. This option is worth to try if the
1315 previous reset_workaround option doesn't help.
1317 Note: This driver is really crappy. It's a porting from the
1318 OSS driver, which is a result of black-magic reverse engineering.
1319 The detection of codec will fail if the driver is loaded *after*
1320 X-server as described above. You might be able to force to load
1321 the module, but it may result in hang-up. Hence, make sure that
1322 you load this module *before* X if you encounter this kind of
1328 Module for Yamaha OPL3-SA2/SA3 sound cards.
1330 port - control port # for OPL3-SA chip (0x370)
1331 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1332 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1333 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1334 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1335 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1336 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1337 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1338 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1340 This module supports multiple cards and ISA PnP. It does not support
1341 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1343 The power-management is supported.
1345 Module snd-opti92x-ad1848
1346 -------------------------
1348 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1349 Module works with OAK Mozart cards as well.
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)
1358 This module supports only one card, autoprobe and PnP.
1360 Module snd-opti92x-cs4231
1361 -------------------------
1363 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1365 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1366 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1367 fm_port - port # for OPL3 device (0x388)
1368 irq - IRQ # for WSS chip (5,7,9,10,11)
1369 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1370 dma1 - first DMA # for WSS chip (0,1,3)
1371 dma2 - second DMA # for WSS chip (0,1,3)
1373 This module supports only one card, autoprobe and PnP.
1378 Module for sound cards based on OPTi 82c93x chips.
1380 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1381 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1382 fm_port - port # for OPL3 device (0x388)
1383 irq - IRQ # for WSS chip (5,7,9,10,11)
1384 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1385 dma1 - first DMA # for WSS chip (0,1,3)
1386 dma2 - second DMA # for WSS chip (0,1,3)
1388 This module supports only one card, autoprobe and PnP.
1393 Module for Digigram PCXHR boards
1395 This module supports multiple cards.
1397 Module snd-powermac (on ppc only)
1398 ---------------------------------
1400 Module for PowerMac, iMac and iBook on-board soundchips
1402 enable_beep - enable beep using PCM (enabled as default)
1404 Module supports autoprobe a chip.
1406 Note: the driver may have problems regarding endianess.
1408 The power-management is supported.
1410 Module snd-pxa2xx-ac97 (on arm only)
1411 ------------------------------------
1413 Module for AC97 driver for the Intel PXA2xx chip
1415 For ARM architecture only.
1417 The power-management is supported.
1422 Module for Conexant Riptide chip
1424 joystick_port - Joystick port # (default: 0x200)
1425 mpu_port - MPU401 port # (default: 0x330)
1426 opl3_port - OPL3 port # (default: 0x388)
1428 This module supports multiple cards.
1429 The driver requires the firmware loader support on kernel.
1430 You need to install the firmware file "riptide.hex" to the standard
1431 firmware path (e.g. /lib/firmware).
1436 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1437 Prodif96 and Prodif Gold) sound cards.
1439 This module supports multiple cards.
1444 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1446 This module supports multiple cards.
1451 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1453 precise_ptr - Enable precise pointer (doesn't work reliably).
1456 This module supports multiple cards.
1458 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1459 module did formerly. It will allocate the buffers in advance
1460 when any RME9652 cards are found. To make the buffer
1461 allocation sure, load snd-page-alloc module in the early
1462 stage of boot sequence. See "Early Buffer Allocation"
1465 Module snd-sa11xx-uda1341 (on arm only)
1466 ---------------------------------------
1468 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1470 Module supports only one card.
1471 Module has no enable and index options.
1473 The power-management is supported.
1478 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1482 port - port # for SB DSP chip (0x220,0x240,0x260)
1483 irq - IRQ # for SB DSP chip (5,7,9,10)
1484 dma8 - DMA # for SB DSP chip (1,3)
1486 This module supports multiple cards and autoprobe.
1488 The power-management is supported.
1490 Module snd-sb16 and snd-sbawe
1491 -----------------------------
1493 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1494 SoundBlaster AWE 32 (PnP),
1495 SoundBlaster AWE 64 PnP
1497 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1498 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1499 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1500 (snd-sbawe module only)
1501 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1502 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1503 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1504 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1505 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1506 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1508 This module supports multiple cards, autoprobe and ISA PnP.
1510 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1511 disable 16bit DMA with dma16 = -1 module parameter.
1512 Also, all Sound Blaster 16 type cards can operate in 16-bit
1513 half duplex mode through 8-bit DMA channel by disabling their
1516 The power-management is supported.
1521 Module for Aztech Sound Galaxy sound card.
1523 sbport - Port # for SB16 interface (0x220,0x240)
1524 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1525 irq - IRQ # (7,9,10,11)
1528 This module supports multiple cards.
1530 The power-management is supported.
1535 Module for ENSONIQ SoundScape PnP cards.
1537 port - Port # (PnP setup)
1538 irq - IRQ # (PnP setup)
1539 mpu_irq - MPU-401 IRQ # (PnP setup)
1540 dma - DMA # (PnP setup)
1542 This module supports multiple cards. ISA PnP must be enabled.
1543 You need sscape_ctl tool in alsa-tools package for loading
1546 Module snd-sun-amd7930 (on sparc only)
1547 --------------------------------------
1549 Module for AMD7930 sound chips found on Sparcs.
1551 This module supports multiple cards.
1553 Module snd-sun-cs4231 (on sparc only)
1554 -------------------------------------
1556 Module for CS4231 sound chips found on Sparcs.
1558 This module supports multiple cards.
1560 Module snd-sun-dbri (on sparc only)
1561 -----------------------------------
1563 Module for DBRI sound chips found on Sparcs.
1565 This module supports multiple cards.
1567 Module snd-wavefront
1568 --------------------
1570 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1572 cs4232_pcm_port - Port # for CS4232 PCM interface.
1573 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1574 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1575 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1576 use_cs4232_midi - Use CS4232 MPU-401 interface
1577 (inaccessibly located inside your computer)
1578 ics2115_port - Port # for ICS2115
1579 ics2115_irq - IRQ # for ICS2115
1580 fm_port - FM OPL-3 Port #
1581 dma1 - DMA1 # for CS4232 PCM interface.
1582 dma2 - DMA2 # for CS4232 PCM interface.
1583 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1585 This module supports multiple cards and ISA PnP.
1587 Module snd-sonicvibes
1588 ---------------------
1590 Module for S3 SonicVibes PCI sound cards.
1591 * PINE Schubert 32 PCI
1593 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1594 - SoundCard must have onboard SRAM for this.
1595 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1597 This module supports multiple cards and autoprobe.
1599 Module snd-serial-u16550
1600 ------------------------
1602 Module for UART16550A serial MIDI ports.
1604 port - port # for UART16550A chip
1605 irq - IRQ # for UART16550A chip, -1 = poll mode
1606 speed - speed in bauds (9600,19200,38400,57600,115200)
1608 base - base for divisor in bauds (57600,115200,230400,460800)
1610 outs - number of MIDI ports in a serial port (1-4)
1612 adaptor - Type of adaptor.
1613 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1614 3 = MS-124W M/B, 4 = Generic
1616 This module supports multiple cards. This module does not support autoprobe
1617 thus the main port must be specified!!! Other options are optional.
1622 Module for Trident 4DWave DX/NX sound cards.
1623 * Best Union Miss Melody 4DWave PCI
1625 * Warpspeed ONSpeed 4DWave PCI
1628 * CHIC True Sound 4Dwave
1629 * Shark Predator4D-PCI
1630 * Jaton SonicWave 4D
1632 pcm_channels - max channels (voices) reserved for PCM
1633 wavetable_size - max wavetable size in kB (4-?kb)
1635 This module supports multiple cards and autoprobe.
1637 The power-management is supported.
1639 Module snd-usb-audio
1640 --------------------
1642 Module for USB audio and USB MIDI devices.
1644 vid - Vendor ID for the device (optional)
1645 pid - Product ID for the device (optional)
1646 device_setup - Device specific magic number (optional)
1647 - Influence depends on the device
1650 This module supports multiple devices, autoprobe and hotplugging.
1652 Module snd-usb-usx2y
1653 --------------------
1655 Module for Tascam USB US-122, US-224 and US-428 devices.
1657 This module supports multiple devices, autoprobe and hotplugging.
1659 Note: you need to load the firmware via usx2yloader utility included
1660 in alsa-tools and alsa-firmware packages.
1665 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1666 8233A, 8233C, 8235, 8237 (south) bridge.
1668 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1670 joystick - Enable joystick (default off) [VIA686A/686B only]
1671 ac97_clock - AC'97 codec clock base (default 48000Hz)
1672 dxs_support - support DXS channels,
1673 0 = auto (default), 1 = enable, 2 = disable,
1674 3 = 48k only, 4 = no VRA, 5 = enable any sample
1675 rate and different sample rates on different
1677 [VIA8233/C, 8235, 8237 only]
1678 ac97_quirk - AC'97 workaround for strange hardware
1679 See "AC97 Quirk Option" section below.
1681 This module supports one chip and autoprobe.
1683 Note: on some SMP motherboards like MSI 694D the interrupts might
1684 not be generated properly. In such a case, please try to
1685 set the SMP (or MPS) version on BIOS to 1.1 instead of
1686 default value 1.4. Then the interrupt number will be
1687 assigned under 15. You might also upgrade your BIOS.
1689 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1690 channels as the first PCM. On these channels, up to 4
1691 streams can be played at the same time, and the controller
1692 can perform sample rate conversion with separate rates for
1694 As default (dxs_support = 0), 48k fixed rate is chosen
1695 except for the known devices since the output is often
1696 noisy except for 48k on some mother boards due to the
1698 Please try once dxs_support=5 and if it works on other
1699 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1700 know the PCI subsystem vendor/device id's (output of
1702 If dxs_support=5 does not work, try dxs_support=4; if it
1703 doesn't work too, try dxs_support=1. (dxs_support=1 is
1704 usually for old motherboards. The correct implemented
1705 board should work with 4 or 5.) If it still doesn't
1706 work and the default setting is ok, dxs_support=3 is the
1707 right choice. If the default setting doesn't work at all,
1708 try dxs_support=2 to disable the DXS channels.
1709 In any cases, please let us know the result and the
1710 subsystem vendor/device ids. See "Links and Addresses"
1713 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1714 additionally. The mpu_port option is for VIA686 chips only.
1716 The power-management is supported.
1718 Module snd-via82xx-modem
1719 ------------------------
1721 Module for VIA82xx AC97 modem
1723 ac97_clock - AC'97 codec clock base (default 48000Hz)
1725 This module supports one card and autoprobe.
1727 Note: The default index value of this module is -2, i.e. the first
1730 The power-management is supported.
1735 Module for virtual rawmidi devices.
1736 This module creates virtual rawmidi devices which communicate
1737 to the corresponding ALSA sequencer ports.
1739 midi_devs - MIDI devices # (1-4, default=4)
1741 This module supports multiple cards.
1746 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1748 mic - Enable Microphone on V222 Mic (NYI)
1749 ibl - Capture IBL size. (default = 0, minimum size)
1751 This module supports multiple cards.
1753 When the driver is compiled as a module and the hotplug firmware
1754 is supported, the firmware data is loaded via hotplug automatically.
1755 Install the necessary firmware files in alsa-firmware package.
1756 When no hotplug fw loader is available, you need to load the
1757 firmware via vxloader utility in alsa-tools package. To invoke
1758 vxloader automatically, add the following to /etc/modprobe.conf
1760 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1762 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1763 /etc/modules.conf, instead.)
1764 IBL size defines the interrupts period for PCM. The smaller size
1765 gives smaller latency but leads to more CPU consumption, too.
1766 The size is usually aligned to 126. As default (=0), the smallest
1767 size is chosen. The possible IBL values can be found in
1768 /proc/asound/cardX/vx-status proc file.
1770 The power-management is supported.
1775 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1777 ibl - Capture IBL size. (default = 0, minimum size)
1779 This module supports multiple cards. The module is compiled only when
1780 PCMCIA is supported on kernel.
1782 With the older 2.6.x kernel, to activate the driver via the card
1783 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1784 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1785 longer require a config file.
1787 When the driver is compiled as a module and the hotplug firmware
1788 is supported, the firmware data is loaded via hotplug automatically.
1789 Install the necessary firmware files in alsa-firmware package.
1790 When no hotplug fw loader is available, you need to load the
1791 firmware via vxloader utility in alsa-tools package.
1793 About capture IBL, see the description of snd-vx222 module.
1795 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1798 The power-management is supported.
1803 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1805 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1806 1 (auto-detect for YMF744/754 only)
1807 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1808 1 (auto-detect for YMF744/754 only)
1809 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1811 rear_switch - enable shared rear/line-in switch (bool)
1813 This module supports autoprobe and multiple chips.
1815 The power-management is supported.
1817 Module snd-pdaudiocf
1818 --------------------
1820 Module for Sound Core PDAudioCF sound card.
1822 The power-management is supported.
1828 The ac97_quirk option is used to enable/override the workaround for
1829 specific devices on drivers for on-board AC'97 controllers like
1830 snd-intel8x0. Some hardware have swapped output pins between Master
1831 and Headphone, or Surround (thanks to confusion of AC'97
1832 specifications from version to version :-)
1834 The driver provides the auto-detection of known problematic devices,
1835 but some might be unknown or wrongly detected. In such a case, pass
1836 the proper value with this option.
1838 The following strings are accepted:
1839 - default Don't override the default setting
1840 - none Disable the quirk
1841 - hp_only Bind Master and Headphone controls as a single control
1842 - swap_hp Swap headphone and master controls
1843 - swap_surround Swap master and surround controls
1844 - ad_sharing For AD1985, turn on OMS bit and use headphone
1845 - alc_jack For ALC65x, turn on the jack sense mode
1846 - inv_eapd Inverted EAPD implementation
1847 - mute_led Bind EAPD bit for turning on/off mute LED
1849 For backward compatibility, the corresponding integer value -1, 0,
1850 ... are accepted, too.
1852 For example, if "Master" volume control has no effect on your device
1853 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1856 Configuring Non-ISAPNP Cards
1857 ============================
1859 When the kernel is configured with ISA-PnP support, the modules
1860 supporting the isapnp cards will have module options "isapnp".
1861 If this option is set, *only* the ISA-PnP devices will be probed.
1862 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1863 together with the proper i/o and irq configuration.
1865 When the kernel is configured without ISA-PnP support, isapnp option
1866 will be not built in.
1869 Module Autoloading Support
1870 ==========================
1872 The ALSA drivers can be loaded automatically on demand by defining
1873 module aliases. The string 'snd-card-%1' is requested for ALSA native
1874 devices where %i is sound card number from zero to seven.
1876 To auto-load an ALSA driver for OSS services, define the string
1877 'sound-slot-%i' where %i means the slot number for OSS, which
1878 corresponds to the card index of ALSA. Usually, define this
1879 as the same card module.
1881 An example configuration for a single emu10k1 card is like below:
1882 ----- /etc/modprobe.conf
1883 alias snd-card-0 snd-emu10k1
1884 alias sound-slot-0 snd-emu10k1
1885 ----- /etc/modprobe.conf
1887 The available number of auto-loaded sound cards depends on the module
1888 option "cards_limit" of snd module. As default it's set to 1.
1889 To enable the auto-loading of multiple cards, specify the number of
1890 sound cards in that option.
1892 When multiple cards are available, it'd better to specify the index
1893 number for each card via module option, too, so that the order of
1894 cards is kept consistent.
1896 An example configuration for two sound cards is like below:
1898 ----- /etc/modprobe.conf
1900 options snd cards_limit=2
1901 alias snd-card-0 snd-interwave
1902 alias snd-card-1 snd-ens1371
1903 options snd-interwave index=0
1904 options snd-ens1371 index=1
1906 alias sound-slot-0 snd-interwave
1907 alias sound-slot-1 snd-ens1371
1908 ----- /etc/modprobe.conf
1910 In this example, the interwave card is always loaded as the first card
1911 (index 0) and ens1371 as the second (index 1).
1914 ALSA PCM devices to OSS devices mapping
1915 =======================================
1917 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1918 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1919 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1920 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1921 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1922 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1923 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1924 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1925 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1927 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1928 sound card number and second means device number. The ALSA devices
1929 have either 'c' or 'p' suffix indicating the direction, capture and
1930 playback, respectively.
1932 Please note that the device mapping above may be varied via the module
1933 options of snd-pcm-oss module.
1936 Proc interfaces (/proc/asound)
1937 ==============================
1939 /proc/asound/card#/pcm#[cp]/oss
1940 -------------------------------
1941 String "erase" - erase all additional informations about OSS applications
1942 String "<app_name> <fragments> <fragment_size> [<options>]"
1944 <app_name> - name of application with (higher priority) or without path
1945 <fragments> - number of fragments or zero if auto
1946 <fragment_size> - size of fragment in bytes or zero if auto
1947 <options> - optional parameters
1948 - disable the application tries to open a pcm device for
1949 this channel but does not want to use it.
1950 (Cause a bug or mmap needs)
1951 It's good for Quake etc...
1952 - direct don't use plugins
1953 - block force block mode (rvplayer)
1954 - non-block force non-block mode
1955 - whole-frag write only whole fragments (optimization affecting
1957 - no-silence do not fill silence ahead to avoid clicks
1958 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1959 instead of filled blocks
1961 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1962 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1963 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1966 Early Buffer Allocation
1967 =======================
1969 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1970 sometimes it's too late to find such spaces when the driver module is
1971 actually loaded due to memory fragmentation. You can pre-allocate the
1972 PCM buffers by loading snd-page-alloc module and write commands to its
1973 proc file in prior, for example, in the early boot stage like
1974 /etc/init.d/*.local scripts.
1976 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1977 usage of page allocation. In writing, you can send the following
1978 commands to the snd-page-alloc driver:
1980 - add VENDOR DEVICE MASK SIZE BUFFERS
1982 VENDOR and DEVICE are PCI vendor and device IDs. They take
1983 integer numbers (0x prefix is needed for the hex).
1984 MASK is the PCI DMA mask. Pass 0 if not restricted.
1985 SIZE is the size of each buffer to allocate. You can pass
1986 k and m suffix for KB and MB. The max number is 16MB.
1987 BUFFERS is the number of buffers to allocate. It must be greater
1988 than 0. The max number is 4.
1992 This will erase the all pre-allocated buffers which are not in
1999 ALSA project homepage
2000 http://www.alsa-project.org
2002 ALSA Bug Tracking System
2003 https://bugtrack.alsa-project.org/bugs/
2006 mailto:alsa-devel@lists.sourceforge.net