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.
60 slots - Reserve the slot index for the given driver.
61 This option takes multiple strings.
62 See "Module Autoloading Support" section for details.
63 debug - Specifies the debug message level
64 (0 = disable debug prints, 1 = normal debug messages,
65 2 = verbose debug messages)
66 This option appears only when CONFIG_SND_DEBUG=y.
67 This option can be dynamically changed via sysfs
68 /sys/modules/snd/parameters/debug file.
73 The PCM OSS emulation module.
74 This module takes options which change the mapping of devices.
76 dsp_map - PCM device number maps assigned to the 1st OSS device.
78 adsp_map - PCM device number maps assigned to the 2st OSS device.
81 - Don't block opening busy PCM devices. Default: 1
83 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
84 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
85 to PCM #0 of the card #0.
86 For changing the second or later card, specify the option with
87 commas, such like "dsp_map=0,1".
89 nonblock_open option is used to change the behavior of the PCM
90 regarding opening the device. When this option is non-zero,
91 opening a busy OSS PCM device won't be blocked but return
92 immediately with EAGAIN (just like O_NONBLOCK flag).
97 This module takes options which change the mapping of devices.
98 similar to those of the snd-pcm-oss module.
100 midi_map - MIDI device number maps assigned to the 1st OSS device.
102 amidi_map - MIDI device number maps assigned to the 2st OSS device.
105 Common parameters for top sound card modules
106 --------------------------------------------
108 Each of top level sound card module takes the following options.
110 index - index (slot #) of sound card
111 - Values: 0 through 31 or negative
112 - If nonnegative, assign that index number
113 - if negative, interpret as a bitmask of permissible
114 indices; the first free permitted index is assigned
116 id - card ID (identifier or name)
117 - Can be up to 15 characters long
118 - Default: the card type
119 - A directory by this name is created under /proc/asound/
120 containing information about the card
121 - This ID can be used instead of the index number in
124 - Default: enabled, for PCI and ISA PnP cards
129 Module for AdLib FM cards.
131 port - port # for OPL chip
133 This module supports multiple cards. It does not support autoprobe, so
134 the port must be specified. For actual AdLib FM cards it will be 0x388.
135 Note that this card does not have PCM support and no mixer; only FM
138 Make sure you have "sbiload" from the alsa-tools package available and,
139 after loading the module, find out the assigned ALSA sequencer port
140 number through "sbiload -l". Example output:
142 Port Client name Port name
143 64:0 OPL2 FM synth OPL2 FM Port
145 Load the std.sb and drums.sb patches also supplied by sbiload:
147 sbiload -p 64:0 std.sb drums.sb
149 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
150 instead. To have the card produce sound, use aplaymidi from alsa-utils:
152 aplaymidi -p 64:0 foo.mid
157 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
159 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
161 This module supports multiple cards, autoprobe and PnP.
166 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
168 port - port # for AD1848 chip
169 irq - IRQ # for AD1848 chip
170 dma1 - DMA # for AD1848 chip (0,1,3)
172 This module supports multiple cards. It does not support autoprobe
173 thus main port must be specified!!! Other ports are optional.
175 The power-management is supported.
180 Module for Analog Devices AD1889 chips.
182 ac97_quirk - AC'97 workaround for strange hardware
183 See the description of intel8x0 module for details.
185 This module supports multiple cards.
190 Module for ALi M5451 PCI chip.
192 pcm_channels - Number of hardware channels assigned for PCM
193 spdif - Support SPDIF I/O
196 This module supports one chip and autoprobe.
198 The power-management is supported.
203 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
205 This module supports multiple cards, autoprobe and PnP.
207 The power-management is supported.
212 Module for Avance Logic ALS300 and ALS300+
214 This module supports multiple cards.
216 The power-management is supported.
221 Module for sound cards based on Avance Logic ALS4000 PCI chip.
223 joystick_port - port # for legacy joystick support.
224 0 = disabled (default), 1 = auto-detect
226 This module supports multiple cards, autoprobe and PnP.
228 The power-management is supported.
233 Module for ATI IXP 150/200/250/400 AC97 controllers.
235 ac97_clock - AC'97 clock (default = 48000)
236 ac97_quirk - AC'97 workaround for strange hardware
237 See "AC97 Quirk Option" section below.
238 ac97_codec - Workaround to specify which AC'97 codec
239 instead of probing. If this works for you
240 file a bug with your `lspci -vn` output.
242 -1 -- Default behavior.
243 0-2 -- Use the specified codec.
244 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
246 This module supports one card and autoprobe.
248 ATI IXP has two different methods to control SPDIF output. One is
249 over AC-link and another is over the "direct" SPDIF output. The
250 implementation depends on the motherboard, and you'll need to
251 choose the correct one via spdif_aclink module option.
253 The power-management is supported.
255 Module snd-atiixp-modem
256 -----------------------
258 Module for ATI IXP 150/200/250 AC97 modem controllers.
260 This module supports one card and autoprobe.
262 Note: The default index value of this module is -2, i.e. the first
265 The power-management is supported.
267 Module snd-au8810, snd-au8820, snd-au8830
268 -----------------------------------------
270 Module for Aureal Vortex, Vortex2 and Advantage device.
272 pcifix - Control PCI workarounds
273 0 = Disable all workarounds
274 1 = Force the PCI latency of the Aureal card to 0xff
275 2 = Force the Extend PCI#2 Internal Master for Efficient
276 Handling of Dummy Requests on the VIA KT133 AGP Bridge
277 3 = Force both settings
278 255 = Autodetect what is required (default)
280 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
281 EQ, mpu401, gameport. A3D and wavetable support are still in development.
282 Development and reverse engineering work is being coordinated at
283 http://savannah.nongnu.org/projects/openvortex/
284 SPDIF output has a copy of the AC97 codec output, unless you use the
285 "spdif" pcm device, which allows raw data passthru.
286 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
289 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
290 control correctly. If you have problems regarding this, try
291 another ALSA compliant mixer (alsamixer works).
296 Module for Audiowerk2 sound card
298 This module supports multiple cards.
303 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
305 This module supports multiple cards, PnP and autoprobe.
307 The power-management is supported.
312 Module for sound cards based on Aztech AZF3328 PCI chip.
314 joystick - Enable joystick (default off)
316 This module supports multiple cards.
321 Module for video cards based on Bt87x chips.
323 digital_rate - Override the default digital rate (Hz)
324 load_all - Load the driver even if the card model isn't known
326 This module supports multiple cards.
328 Note: The default index value of this module is -2, i.e. the first
334 Module for Creative Audigy LS and SB Live 24bit
336 This module supports multiple cards.
342 Module for sound cards based on C-Media CMI8330 ISA chips.
344 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
346 with isapnp=0, the following options are available:
348 wssport - port # for CMI8330 chip (WSS)
349 wssirq - IRQ # for CMI8330 chip (WSS)
350 wssdma - first DMA # for CMI8330 chip (WSS)
351 sbport - port # for CMI8330 chip (SB16)
352 sbirq - IRQ # for CMI8330 chip (SB16)
353 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
354 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
355 fmport - (optional) OPL3 I/O port
356 mpuport - (optional) MPU401 I/O port
357 mpuirq - (optional) MPU401 irq #
359 This module supports multiple cards and autoprobe.
361 The power-management is supported.
366 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
368 mpu_port - port address of MIDI interface (8338 only):
369 0x300,0x310,0x320,0x330 = legacy port,
370 0 = disable (default)
371 fm_port - port address of OPL-3 FM synthesizer (8x38 only):
373 1 = integrated PCI port (default on 8738),
375 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
377 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
379 This module supports autoprobe and multiple cards.
381 The power-management is supported.
386 Module for sound cards based on CS4231 ISA chips.
388 port - port # for CS4231 chip
389 mpu_port - port # for MPU-401 UART (optional), -1 = disable
390 irq - IRQ # for CS4231 chip
391 mpu_irq - IRQ # for MPU-401 UART
392 dma1 - first DMA # for CS4231 chip
393 dma2 - second DMA # for CS4231 chip
395 This module supports multiple cards. This module does not support autoprobe
396 thus main port must be specified!!! Other ports are optional.
398 The power-management is supported.
403 Module for sound cards based on CS4232/CS4232A,
404 CS4235/CS4236/CS4236B/CS4237B/
405 CS4238B/CS4239 ISA chips.
407 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
409 with isapnp=0, the following options are available:
411 port - port # for CS4236 chip (PnP setup - 0x534)
412 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
413 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
414 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
415 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
416 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
417 dma1 - first DMA # for CS4236 chip (0,1,3)
418 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
420 This module supports multiple cards. This module does not support autoprobe
421 (if ISA PnP is not used) thus main port and control port must be
422 specified!!! Other ports are optional.
424 The power-management is supported.
426 This module is aliased as snd-cs4232 since it provides the old
427 snd-cs4232 functionality, too.
432 Module for Cirrus Logic CS4281 soundchip.
434 dual_codec - Secondary codec ID (0 = disable, default)
436 This module supports multiple cards.
438 The power-management is supported.
443 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
444 CS4624/CS4630/CS4280 PCI chips.
446 external_amp - Force to enable external amplifier.
447 thinkpad - Force to enable Thinkpad's CLKRUN control.
448 mmap_valid - Support OSS mmap mode (default = 0).
450 This module supports multiple cards and autoprobe.
451 Usually external amp and CLKRUN controls are detected automatically
452 from PCI sub vendor/device ids. If they don't work, give the options
455 The power-management is supported.
460 Module for Cyrix/NatSemi Geode 5530 chip.
462 Module snd-cs5535audio
463 ----------------------
465 Module for multifunction CS5535 companion PCI device
467 The power-management is supported.
472 Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
473 * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
474 * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
475 * Creative Sound Blaster X-Fi Titanium Professional Audio
476 * Creative Sound Blaster X-Fi Titanium
477 * Creative Sound Blaster X-Fi Elite Pro
478 * Creative Sound Blaster X-Fi Platinum
479 * Creative Sound Blaster X-Fi Fatal1ty
480 * Creative Sound Blaster X-Fi XtremeGamer
481 * Creative Sound Blaster X-Fi XtremeMusic
483 reference_rate - reference sample rate, 44100 or 48000 (default)
484 multiple - multiple to ref. sample rate, 1 or 2 (default)
486 This module supports multiple cards.
491 Module for Echoaudio Darla20
493 This module supports multiple cards.
494 The driver requires the firmware loader support on kernel.
499 Module for Echoaudio Darla24
501 This module supports multiple cards.
502 The driver requires the firmware loader support on kernel.
507 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
510 This module supports multiple cards. This module is enabled only with
513 The power-management is supported.
518 Module for the dummy sound card. This "card" doesn't do any output
519 or input, but you may use this module for any application which
520 requires a sound card (like RealPlayer).
522 pcm_devs - Number of PCM devices assigned to each card
523 (default = 1, up to 4)
524 pcm_substreams - Number of PCM substreams assigned to each PCM
525 (default = 8, up to 128)
526 hrtimer - Use hrtimer (=1, default) or system timer (=0)
527 fake_buffer - Fake buffer allocations (default = 1)
529 When multiple PCM devices are created, snd-dummy gives different
530 behavior to each PCM device:
531 0 = interleaved with mmap support
532 1 = non-interleaved with mmap support
533 2 = interleaved without mmap
534 3 = non-interleaved without mmap
536 As default, snd-dummy drivers doesn't allocate the real buffers
537 but either ignores read/write or mmap a single dummy page to all
538 buffer pages, in order to save the resouces. If your apps need
539 the read/ written buffer data to be consistent, pass fake_buffer=0
542 The power-management is supported.
547 Module for Echoaudio 3G cards (Gina3G/Layla3G)
549 This module supports multiple cards.
550 The driver requires the firmware loader support on kernel.
555 Module for EMU10K1/EMU10k2 based PCI sound cards.
556 * Sound Blaster Live!
557 * Sound Blaster PCI 512
558 * Emu APS (partially supported)
559 * Sound Blaster Audigy
561 extin - bitmap of available external inputs for FX8010 (see bellow)
562 extout - bitmap of available external outputs for FX8010 (see bellow)
563 seq_ports - allocated sequencer ports (4 by default)
564 max_synth_voices - limit of voices used for wavetable (64 by default)
565 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
566 given in MB unit. Default value is 128.
567 enable_ir - enable IR
569 This module supports multiple cards and autoprobe.
571 Input & Output configurations [extin/extout]
572 * Creative Card wo/Digital out [0x0003/0x1f03]
573 * Creative Card w/Digital out [0x0003/0x1f0f]
574 * Creative Card w/Digital CD in [0x000f/0x1f0f]
575 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
576 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
577 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
578 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
579 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
580 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
581 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
582 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
583 * Creative Card all ins and outs [0x3fff/0x7fff]
585 The power-management is supported.
590 Module for Creative Emu10k1X (SB Live Dell OEM version)
592 This module supports multiple cards.
597 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
598 * SoundBlaster PCI 64
599 * SoundBlaster PCI 128
601 joystick - Enable joystick (default off)
603 This module supports multiple cards and autoprobe.
605 The power-management is supported.
610 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
611 * SoundBlaster PCI 64
612 * SoundBlaster PCI 128
613 * SoundBlaster Vibra PCI
615 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
616 0 = disable (default), 1 = auto-detect
618 This module supports multiple cards and autoprobe.
620 The power-management is supported.
625 Module for sound cards based on ESS ES968 chip (PnP only).
627 This module supports multiple cards, PnP and autoprobe.
629 The power-management is supported.
634 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
636 port - port # for ES-1688 chip (0x220,0x240,0x260)
637 fm_port - port # for OPL3 (option; share the same port as default)
638 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
639 irq - IRQ # for ES-1688 chip (5,7,9,10)
640 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
641 dma8 - DMA # for ES-1688 chip (0,1,3)
643 This module supports multiple cards and autoprobe (without MPU-401 port).
648 Module for ESS AudioDrive ES-18xx sound cards.
650 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
652 with isapnp=0, the following options are available:
654 port - port # for ES-18xx chip (0x220,0x240,0x260)
655 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
656 fm_port - port # for FM (optional, not used)
657 irq - IRQ # for ES-18xx chip (5,7,9,10)
658 dma1 - first DMA # for ES-18xx chip (0,1,3)
659 dma2 - first DMA # for ES-18xx chip (0,1,3)
661 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
662 port if native ISA PnP routines are not used).
663 When dma2 is equal with dma1, the driver works as half-duplex.
665 The power-management is supported.
670 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
672 This module supports multiple cards and autoprobe.
674 The power-management is supported.
679 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
681 total_bufsize - total buffer size in kB (1-4096kB)
682 pcm_substreams_p - playback channels (1-8, default=2)
683 pcm_substreams_c - capture channels (1-8, default=0)
684 clock - clock (0 = auto-detection)
685 use_pm - support the power-management (0 = off, 1 = on,
687 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
688 joystick - enable joystick (default off)
690 This module supports multiple cards and autoprobe.
692 The power-management is supported.
697 Module for ForteMedia FM801 based PCI sound cards.
699 tea575x_tuner - Enable TEA575x tuner
700 - 1 = MediaForte 256-PCS
701 - 2 = MediaForte 256-PCPR
702 - 3 = MediaForte 64-PCR
703 - High 16-bits are video (radio) device number + 1
704 - example: 0x10002 (MediaForte 256-PCPR, device 1)
706 This module supports multiple cards and autoprobe.
708 The power-management is supported.
713 Module for Echoaudio Gina20
715 This module supports multiple cards.
716 The driver requires the firmware loader support on kernel.
721 Module for Echoaudio Gina24
723 This module supports multiple cards.
724 The driver requires the firmware loader support on kernel.
726 Module snd-gusclassic
727 ---------------------
729 Module for Gravis UltraSound Classic sound card.
731 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
732 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
733 dma1 - DMA # for GF1 chip (1,3,5,6,7)
734 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
735 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
736 voices - GF1 voices limit (14-32)
737 pcm_voices - reserved PCM voices
739 This module supports multiple cards and autoprobe.
741 Module snd-gusextreme
742 ---------------------
744 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
746 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
747 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
748 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
749 irq - IRQ # for ES-1688 chip (5,7,9,10)
750 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
751 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
752 dma8 - DMA # for ES-1688 chip (0,1,3)
753 dma1 - DMA # for GF1 chip (1,3,5,6,7)
754 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
755 voices - GF1 voices limit (14-32)
756 pcm_voices - reserved PCM voices
758 This module supports multiple cards and autoprobe (without MPU-401 port).
763 Module for Gravis UltraSound MAX sound card.
765 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
766 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
767 dma1 - DMA # for GF1 chip (1,3,5,6,7)
768 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
769 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
770 voices - GF1 voices limit (14-32)
771 pcm_voices - reserved PCM voices
773 This module supports multiple cards and autoprobe.
778 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
780 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
781 RV630, RV635, RV670, RV770,
785 [Multiple options for each card instance]
786 model - force the model name
787 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
788 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
789 When the bit 8 (0x100) is set, the lower 8 bits are used
790 as the "fixed" codec slots; i.e. the driver probes the
791 slots regardless what hardware reports back
792 probe_only - Only probing and no codec initialization (default=off);
793 Useful to check the initial codec status for debugging
794 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
795 Passing -1 will make the driver to choose the appropriate
796 value based on the controller chip.
797 patch - Specifies the early "patch" files to modify the HD-audio
798 setup before initializing the codecs. This option is
799 available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
800 See HD-Audio.txt for details.
801 beep_mode - Selects the beep registration mode (0=off, 1=on, 2=
802 dynamic registration via mute switch on/off); the default
803 value is set via CONFIG_SND_HDA_INPUT_BEEP_MODE kconfig.
805 [Single (global) options]
806 single_cmd - Use single immediate commands to communicate with
807 codecs (for debugging only)
808 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
809 power_save - Automatic power-saving timeout (in second, 0 =
811 power_save_controller - Reset HD-audio controller in power-saving mode
814 This module supports multiple cards and autoprobe.
816 See Documentation/sound/alsa/HD-Audio.txt for more details about
819 Each codec may have a model table for different configurations.
820 If your machine isn't listed there, the default (usually minimal)
821 configuration is set up. You can pass "model=<name>" option to
822 specify a certain model in such a case. There are different
823 models depending on the codec chip. The list of available models
824 is found in HD-Audio-Models.txt
826 The model name "genric" is treated as a special case. When this
827 model is given, the driver uses the generic codec parser without
828 "codec-patch". It's sometimes good for testing and debugging.
830 If the default configuration doesn't work and one of the above
831 matches with your device, report it together with alsa-info.sh
832 output (with --no-upload option) to kernel bugzilla or alsa-devel
833 ML (see the section "Links and Addresses").
835 power_save and power_save_controller options are for power-saving
836 mode. See powersave.txt for details.
838 Note 2: If you get click noises on output, try the module option
839 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
840 register value without FIFO size correction as the current
841 DMA pointer. position_fix=2 will make the driver to use
842 the position buffer instead of reading SD_LPIB register.
843 (Usually SD_LPIB register is more accurate than the
846 NB: If you get many "azx_get_response timeout" messages at
847 loading, it's likely a problem of interrupts (e.g. ACPI irq
848 routing). Try to boot with options like "pci=noacpi". Also, you
849 can try "single_cmd=1" module option. This will switch the
850 communication method between HDA controller and codecs to the
851 single immediate commands instead of CORB/RIRB. Basically, the
852 single command mode is provided only for BIOS, and you won't get
853 unsolicited events, too. But, at least, this works independently
854 from the irq. Remember this is a last resort, and should be
855 avoided as much as possible...
857 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
858 On some hardwares, you may need to add a proper probe_mask option
859 to avoid the "azx_get_response timeout" problem above, instead.
860 This occurs when the access to non-existing or non-working codec slot
861 (likely a modem one) causes a stall of the communication via HD-audio
862 bus. You can see which codec slots are probed by enabling
863 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
864 proc files. Then limit the slots to probe by probe_mask option.
865 For example, probe_mask=1 means to probe only the first slot, and
866 probe_mask=4 means only the third slot.
868 The power-management is supported.
873 Module for RME Hammerfall DSP audio interface(s)
875 This module supports multiple cards.
877 Note: The firmware data can be automatically loaded via hotplug
878 when CONFIG_FW_LOADER is set. Otherwise, you need to load
879 the firmware via hdsploader utility included in alsa-tools
881 The firmware data is found in alsa-firmware package.
883 Note: snd-page-alloc module does the job which snd-hammerfall-mem
884 module did formerly. It will allocate the buffers in advance
885 when any HDSP cards are found. To make the buffer
886 allocation sure, load snd-page-alloc module in the early
887 stage of boot sequence. See "Early Buffer Allocation"
893 Module for RME HDSP MADI board.
895 precise_ptr - Enable precise pointer, or disable.
896 line_outs_monitor - Send playback streams to analog outs by default.
897 enable_monitor - Enable Analog Out on Channel 63/64 by default.
899 See hdspm.txt for details.
904 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
906 This module supports autoprobe and multiple cards.
911 Module for Envy24 (ICE1712) based PCI sound cards.
912 * MidiMan M Audio Delta 1010
913 * MidiMan M Audio Delta 1010LT
914 * MidiMan M Audio Delta DiO 2496
915 * MidiMan M Audio Delta 66
916 * MidiMan M Audio Delta 44
917 * MidiMan M Audio Delta 410
918 * MidiMan M Audio Audiophile 2496
924 * Hoontech SoundTrack DSP 24
925 * Hoontech SoundTrack DSP 24 Value
926 * Hoontech SoundTrack DSP 24 Media 7.1
927 * Event Electronics, EZ8
929 * Lionstracs, Mediastaton
932 model - Use the given board model, one of the following:
933 delta1010, dio2496, delta66, delta44, audiophile, delta410,
934 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
935 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
936 phase88, mediastation
937 omni - Omni I/O support for MidiMan M-Audio Delta44/66
938 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
939 in msec resolution, default value is 500 (0.5 sec)
941 This module supports multiple cards and autoprobe. Note: The consumer part
942 is not used with all Envy24 based cards (for example in the MidiMan Delta
945 Note: The supported board is detected by reading EEPROM or PCI
946 SSID (if EEPROM isn't available). You can override the
947 model by passing "model" module option in case that the
948 driver isn't configured properly or you want to try another
954 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
955 * MidiMan M Audio Revolution 5.1
956 * MidiMan M Audio Revolution 7.1
957 * MidiMan M Audio Audiophile 192
959 * TerraTec Aureon 5.1 Sky
960 * TerraTec Aureon 7.1 Space
961 * TerraTec Aureon 7.1 Universe
964 * AudioTrak Prodigy 7.1
965 * AudioTrak Prodigy 7.1 LT
966 * AudioTrak Prodigy 7.1 XT
967 * AudioTrak Prodigy 7.1 HIFI
968 * AudioTrak Prodigy 7.1 HD2
969 * AudioTrak Prodigy 192
971 * Albatron K8X800 Pro II
981 * Hercules Fortissimo IV
982 * EGO-SYS WaveTerminal 192M
984 model - Use the given board model, one of the following:
985 revo51, revo71, amp2000, prodigy71, prodigy71lt,
986 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
987 juli, aureon51, aureon71, universe, ap192, k8x800,
988 phase22, phase28, ms300, av710, se200pci, se90pci,
989 fortissimo4, sn25p, WT192M, maya44
991 This module supports multiple cards and autoprobe.
993 Note: The supported board is detected by reading EEPROM or PCI
994 SSID (if EEPROM isn't available). You can override the
995 model by passing "model" module option in case that the
996 driver isn't configured properly or you want to try another
1002 Module for Echoaudio Indigo
1004 This module supports multiple cards.
1005 The driver requires the firmware loader support on kernel.
1010 Module for Echoaudio Indigo DJ
1012 This module supports multiple cards.
1013 The driver requires the firmware loader support on kernel.
1018 Module for Echoaudio Indigo IO
1020 This module supports multiple cards.
1021 The driver requires the firmware loader support on kernel.
1026 Module for AC'97 motherboards from Intel and compatibles.
1027 * Intel i810/810E, i815, i820, i830, i84x, MX440
1028 ICH5, ICH6, ICH7, 6300ESB, ESB2
1029 * SiS 7012 (SiS 735)
1030 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1032 * AMD AMD768, AMD8111
1035 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1036 ac97_quirk - AC'97 workaround for strange hardware
1037 See "AC97 Quirk Option" section below.
1038 buggy_irq - Enable workaround for buggy interrupts on some
1039 motherboards (default yes on nForce chips,
1041 buggy_semaphore - Enable workaround for hardwares with buggy
1042 semaphores (e.g. on some ASUS laptops)
1044 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1045 from the controller chip
1046 (0 = off, 1 = on, -1 = default)
1048 This module supports one chip and autoprobe.
1050 Note: the latest driver supports auto-detection of chip clock.
1051 if you still encounter too fast playback, specify the clock
1052 explicitly via the module option "ac97_clock=41194".
1054 Joystick/MIDI ports are not supported by this driver. If your
1055 motherboard has these devices, use the ns558 or snd-mpu401
1056 modules, respectively.
1058 The power-management is supported.
1060 Module snd-intel8x0m
1061 --------------------
1063 Module for Intel ICH (i8x0) chipset MC97 modems.
1064 * Intel i810/810E, i815, i820, i830, i84x, MX440
1066 * SiS 7013 (SiS 735)
1067 * NVidia NForce, NForce2, NForce2s, NForce3
1071 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1073 This module supports one card and autoprobe.
1075 Note: The default index value of this module is -2, i.e. the first
1078 The power-management is supported.
1080 Module snd-interwave
1081 --------------------
1083 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1084 and other sound cards based on AMD InterWave (tm) chip.
1086 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1087 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1088 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1089 effect - 1 = InterWave effects enable (default 0);
1091 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1093 with isapnp=0, the following options are available:
1095 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1096 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1097 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1098 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1100 This module supports multiple cards, autoprobe and ISA PnP.
1102 Module snd-interwave-stb
1103 ------------------------
1105 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1106 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1107 circuit for extended control of bass, treble and master volume.
1109 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1110 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1111 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1112 effect - 1 = InterWave effects enable (default 0);
1114 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1116 with isapnp=0, the following options are available:
1118 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1119 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1120 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1121 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1122 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1124 This module supports multiple cards, autoprobe and ISA PnP.
1129 Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
1130 MVD1216 + MVA416 + MVA514.
1132 port - port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
1133 irq - IRQ # for SB DSP chip (3,5,7,9,10,15)
1134 dma8 - DMA # for SB DSP chip (1,3)
1135 dma16 - DMA # for SB DSP chip (5,7)
1136 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1137 mpu_irq - MPU-401 irq # (2,3,5,7)
1139 This module supports multiple cards.
1144 Module for Korg 1212 IO PCI card
1146 This module supports multiple cards.
1151 Module for Echoaudio Layla20
1153 This module supports multiple cards.
1154 The driver requires the firmware loader support on kernel.
1159 Module for Echoaudio Layla24
1161 This module supports multiple cards.
1162 The driver requires the firmware loader support on kernel.
1167 Module for Digigram LX6464ES boards
1169 This module supports multiple cards.
1174 Module for Allegro/Maestro3 chips
1176 external_amp - enable external amp (enabled by default)
1177 amp_gpio - GPIO pin number for external amp (0-15) or
1178 -1 for default pin (8 for allegro, 1 for
1181 This module supports autoprobe and multiple chips.
1183 Note: the binding of amplifier is dependent on hardware.
1184 If there is no sound even though all channels are unmuted, try to
1185 specify other gpio connection via amp_gpio option.
1186 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1189 The power-management is supported.
1194 Module for Echoaudio Mia
1196 This module supports multiple cards.
1197 The driver requires the firmware loader support on kernel.
1202 Module for Miro soundcards: miroSOUND PCM 1 pro,
1204 miroSOUND PCM 20 Radio.
1206 port - Port # (0x530,0x604,0xe80,0xf40)
1207 irq - IRQ # (5,7,9,10,11)
1208 dma1 - 1st dma # (0,1,3)
1209 dma2 - 2nd dma # (0,1)
1210 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1211 mpu_irq - MPU-401 irq # (5,7,9,10)
1212 fm_port - FM Port # (0x388)
1213 wss - enable WSS mode
1214 ide - enable onboard ide support
1219 Module for Digigram miXart8 sound cards.
1221 This module supports multiple cards.
1222 Note: One miXart8 board will be represented as 4 alsa cards.
1223 See MIXART.txt for details.
1225 When the driver is compiled as a module and the hotplug firmware
1226 is supported, the firmware data is loaded via hotplug automatically.
1227 Install the necessary firmware files in alsa-firmware package.
1228 When no hotplug fw loader is available, you need to load the
1229 firmware via mixartloader utility in alsa-tools package.
1234 Module for Echoaudio Mona
1236 This module supports multiple cards.
1237 The driver requires the firmware loader support on kernel.
1242 Module for MPU-401 UART devices.
1244 port - port number or -1 (disable)
1245 irq - IRQ number or -1 (disable)
1246 pnp - PnP detection - 0 = disable, 1 = enable (default)
1248 This module supports multiple devices and PnP.
1250 Module snd-msnd-classic
1251 -----------------------
1253 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1256 io - Port # for msnd-classic card
1257 irq - IRQ # for msnd-classic card
1258 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1260 write_ndelay - enable write ndelay (default = 1)
1261 calibrate_signal - calibrate signal (default = 0)
1262 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1263 digital - Digital daughterboard present (default = 0)
1264 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1265 reset - Reset all devices
1266 mpu_io - MPU401 I/O port
1267 mpu_irq - MPU401 irq#
1268 ide_io0 - IDE port #0
1269 ide_io1 - IDE port #1
1271 joystick_io - Joystick I/O port
1273 The driver requires firmware files "turtlebeach/msndinit.bin" and
1274 "turtlebeach/msndperm.bin" in the proper firmware directory.
1276 See Documentation/sound/oss/MultiSound for important information
1277 about this driver. Note that it has been discontinued, but the
1278 Voyetra Turtle Beach knowledge base entry for it is still available
1280 http://www.turtlebeach.com/site/kb_ftp/790.asp
1282 Module snd-msnd-pinnacle
1283 ------------------------
1285 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1287 io - Port # for pinnacle/fiji card
1288 irq - IRQ # for pinnalce/fiji card
1289 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1291 write_ndelay - enable write ndelay (default = 1)
1292 calibrate_signal - calibrate signal (default = 0)
1293 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1295 The driver requires firmware files "turtlebeach/pndspini.bin" and
1296 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1301 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1304 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1305 irq - IRQ # for MTPAV (7,5, default=7)
1306 hwports - number of supported hardware ports, default=8.
1308 Module supports only 1 card. This module has no enable option.
1313 Module for Ego Systems (ESI) Miditerminal 4140
1315 This module supports multiple devices.
1316 Requires parport (CONFIG_PARPORT).
1321 Module for NeoMagic NM256AV/ZX chips
1323 playback_bufsize - max playback frame size in kB (4-128kB)
1324 capture_bufsize - max capture frame size in kB (4-128kB)
1325 force_ac97 - 0 or 1 (disabled by default)
1326 buffer_top - specify buffer top address
1327 use_cache - 0 or 1 (disabled by default)
1328 vaio_hack - alias buffer_top=0x25a800
1329 reset_workaround - enable AC97 RESET workaround for some laptops
1330 reset_workaround2 - enable extended AC97 RESET workaround for some
1333 This module supports one chip and autoprobe.
1335 The power-management is supported.
1337 Note: on some notebooks the buffer address cannot be detected
1338 automatically, or causes hang-up during initialization.
1339 In such a case, specify the buffer top address explicitly via
1340 the buffer_top option.
1342 Sony F250: buffer_top=0x25a800
1343 Sony F270: buffer_top=0x272800
1344 The driver supports only ac97 codec. It's possible to force
1345 to initialize/use ac97 although it's not detected. In such a
1346 case, use force_ac97=1 option - but *NO* guarantee whether it
1349 Note: The NM256 chip can be linked internally with non-AC97
1350 codecs. This driver supports only the AC97 codec, and won't work
1351 with machines with other (most likely CS423x or OPL3SAx) chips,
1352 even though the device is detected in lspci. In such a case, try
1353 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1354 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1355 and proper hardware parameters in the case without ISA PnP.
1357 Note: some laptops need a workaround for AC97 RESET. For the
1358 known hardware like Dell Latitude LS and Sony PCG-F305, this
1359 workaround is enabled automatically. For other laptops with a
1360 hard freeze, you can try reset_workaround=1 option.
1362 Note: Dell Latitude CSx laptops have another problem regarding
1363 AC97 RESET. On these laptops, reset_workaround2 option is
1364 turned on as default. This option is worth to try if the
1365 previous reset_workaround option doesn't help.
1367 Note: This driver is really crappy. It's a porting from the
1368 OSS driver, which is a result of black-magic reverse engineering.
1369 The detection of codec will fail if the driver is loaded *after*
1370 X-server as described above. You might be able to force to load
1371 the module, but it may result in hang-up. Hence, make sure that
1372 you load this module *before* X if you encounter this kind of
1378 Module for Yamaha OPL3-SA2/SA3 sound cards.
1380 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1382 with isapnp=0, the following options are available:
1384 port - control port # for OPL3-SA chip (0x370)
1385 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1386 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1387 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1388 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1389 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1390 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1391 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1393 This module supports multiple cards and ISA PnP. It does not support
1394 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1396 The power-management is supported.
1398 Module snd-opti92x-ad1848
1399 -------------------------
1401 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1402 Module works with OAK Mozart cards as well.
1404 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1406 with isapnp=0, the following options are available:
1408 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1409 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1410 fm_port - port # for OPL3 device (0x388)
1411 irq - IRQ # for WSS chip (5,7,9,10,11)
1412 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1413 dma1 - first DMA # for WSS chip (0,1,3)
1415 This module supports only one card, autoprobe and PnP.
1417 Module snd-opti92x-cs4231
1418 -------------------------
1420 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1422 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1424 with isapnp=0, the following options are available:
1426 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1427 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1428 fm_port - port # for OPL3 device (0x388)
1429 irq - IRQ # for WSS chip (5,7,9,10,11)
1430 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1431 dma1 - first DMA # for WSS chip (0,1,3)
1432 dma2 - second DMA # for WSS chip (0,1,3)
1434 This module supports only one card, autoprobe and PnP.
1439 Module for sound cards based on OPTi 82c93x chips.
1441 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1443 with isapnp=0, the following options are available:
1445 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1446 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1447 fm_port - port # for OPL3 device (0x388)
1448 irq - IRQ # for WSS chip (5,7,9,10,11)
1449 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1450 dma1 - first DMA # for WSS chip (0,1,3)
1451 dma2 - second DMA # for WSS chip (0,1,3)
1453 This module supports only one card, autoprobe and PnP.
1458 Module for sound cards based on the C-Media CMI8788 chip:
1460 * AuzenTech X-Meridian
1462 * Club3D Theatron DTS
1463 * HT-Omega Claro (plus)
1464 * HT-Omega Claro halo (XT)
1465 * Razer Barracuda AC-1
1468 This module supports autoprobe and multiple cards.
1473 Module for internal PC-Speaker.
1475 nopcm - Disable PC-Speaker PCM sound. Only beeps remain.
1476 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1478 This module supports system beeps, some kind of PCM playback and
1479 even a few mixer controls.
1484 Module for Digigram PCXHR boards
1486 This module supports multiple cards.
1488 Module snd-portman2x4
1489 ---------------------
1491 Module for Midiman Portman 2x4 parallel port MIDI interface
1493 This module supports multiple cards.
1495 Module snd-powermac (on ppc only)
1496 ---------------------------------
1498 Module for PowerMac, iMac and iBook on-board soundchips
1500 enable_beep - enable beep using PCM (enabled as default)
1502 Module supports autoprobe a chip.
1504 Note: the driver may have problems regarding endianess.
1506 The power-management is supported.
1508 Module snd-pxa2xx-ac97 (on arm only)
1509 ------------------------------------
1511 Module for AC97 driver for the Intel PXA2xx chip
1513 For ARM architecture only.
1515 The power-management is supported.
1520 Module for Conexant Riptide chip
1522 joystick_port - Joystick port # (default: 0x200)
1523 mpu_port - MPU401 port # (default: 0x330)
1524 opl3_port - OPL3 port # (default: 0x388)
1526 This module supports multiple cards.
1527 The driver requires the firmware loader support on kernel.
1528 You need to install the firmware file "riptide.hex" to the standard
1529 firmware path (e.g. /lib/firmware).
1534 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1535 Prodif96 and Prodif Gold) sound cards.
1537 This module supports multiple cards.
1542 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1544 This module supports multiple cards.
1549 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1551 precise_ptr - Enable precise pointer (doesn't work reliably).
1554 This module supports multiple cards.
1556 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1557 module did formerly. It will allocate the buffers in advance
1558 when any RME9652 cards are found. To make the buffer
1559 allocation sure, load snd-page-alloc module in the early
1560 stage of boot sequence. See "Early Buffer Allocation"
1563 Module snd-sa11xx-uda1341 (on arm only)
1564 ---------------------------------------
1566 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1568 Module supports only one card.
1569 Module has no enable and index options.
1571 The power-management is supported.
1576 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1580 port - port # for SB DSP chip (0x220,0x240,0x260)
1581 irq - IRQ # for SB DSP chip (5,7,9,10)
1582 dma8 - DMA # for SB DSP chip (1,3)
1584 This module supports multiple cards and autoprobe.
1586 The power-management is supported.
1588 Module snd-sb16 and snd-sbawe
1589 -----------------------------
1591 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1592 SoundBlaster AWE 32 (PnP),
1593 SoundBlaster AWE 64 PnP
1595 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1596 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1597 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1599 with isapnp=0, the following options are available:
1601 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1602 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1603 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1604 (snd-sbawe module only)
1605 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1606 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1607 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1609 This module supports multiple cards, autoprobe and ISA PnP.
1611 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1612 disable 16bit DMA with dma16 = -1 module parameter.
1613 Also, all Sound Blaster 16 type cards can operate in 16-bit
1614 half duplex mode through 8-bit DMA channel by disabling their
1617 The power-management is supported.
1622 Module for Gallant SC-6000 soundcard and later models: SC-6600
1625 port - Port # (0x220 or 0x240)
1626 mss_port - MSS Port # (0x530 or 0xe80)
1627 irq - IRQ # (5,7,9,10,11)
1628 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1630 joystick - Enable gameport - 0 = disable (default), 1 = enable
1632 This module supports multiple cards.
1634 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1639 Module for Aztech Sound Galaxy sound card.
1641 sbport - Port # for SB16 interface (0x220,0x240)
1642 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1643 irq - IRQ # (7,9,10,11)
1646 This module supports multiple cards.
1648 The power-management is supported.
1653 Module for ENSONIQ SoundScape cards.
1655 port - Port # (PnP setup)
1656 wss_port - WSS Port # (PnP setup)
1657 irq - IRQ # (PnP setup)
1658 mpu_irq - MPU-401 IRQ # (PnP setup)
1659 dma - DMA # (PnP setup)
1660 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1661 joystick - Enable gameport - 0 = disable (default), 1 = enable
1663 This module supports multiple cards.
1665 The driver requires the firmware loader support on kernel.
1667 Module snd-sun-amd7930 (on sparc only)
1668 --------------------------------------
1670 Module for AMD7930 sound chips found on Sparcs.
1672 This module supports multiple cards.
1674 Module snd-sun-cs4231 (on sparc only)
1675 -------------------------------------
1677 Module for CS4231 sound chips found on Sparcs.
1679 This module supports multiple cards.
1681 Module snd-sun-dbri (on sparc only)
1682 -----------------------------------
1684 Module for DBRI sound chips found on Sparcs.
1686 This module supports multiple cards.
1688 Module snd-wavefront
1689 --------------------
1691 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1693 use_cs4232_midi - Use CS4232 MPU-401 interface
1694 (inaccessibly located inside your computer)
1695 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1697 with isapnp=0, the following options are available:
1699 cs4232_pcm_port - Port # for CS4232 PCM interface.
1700 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1701 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1702 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1703 ics2115_port - Port # for ICS2115
1704 ics2115_irq - IRQ # for ICS2115
1705 fm_port - FM OPL-3 Port #
1706 dma1 - DMA1 # for CS4232 PCM interface.
1707 dma2 - DMA2 # for CS4232 PCM interface.
1709 The below are options for wavefront_synth features:
1710 wf_raw - Assume that we need to boot the OS (default:no)
1711 If yes, then during driver loading, the state of the board is
1712 ignored, and we reset the board and load the firmware anyway.
1713 fx_raw - Assume that the FX process needs help (default:yes)
1714 If false, we'll leave the FX processor in whatever state it is
1715 when the driver is loaded. The default is to download the
1716 microprogram and associated coefficients to set it up for
1717 "default" operation, whatever that means.
1718 debug_default - Debug parameters for card initialization
1719 wait_usecs - How long to wait without sleeping, usecs
1721 This magic number seems to give pretty optimal throughput
1722 based on my limited experimentation.
1723 If you want to play around with it and find a better value, be
1724 my guest. Remember, the idea is to get a number that causes us
1725 to just busy wait for as many WaveFront commands as possible,
1726 without coming up with a number so large that we hog the whole
1728 Specifically, with this number, out of about 134,000 status
1729 waits, only about 250 result in a sleep.
1730 sleep_interval - How long to sleep when waiting for reply
1732 sleep_tries - How many times to try sleeping during a wait
1734 ospath - Pathname to processed ICS2115 OS firmware
1735 (default:wavefront.os)
1736 The path name of the ISC2115 OS firmware. In the recent
1737 version, it's handled via firmware loader framework, so it
1738 must be installed in the proper path, typically,
1740 reset_time - How long to wait for a reset to take effect
1742 ramcheck_time - How many seconds to wait for the RAM test
1744 osrun_time - How many seconds to wait for the ICS2115 OS
1747 This module supports multiple cards and ISA PnP.
1749 Note: the firmware file "wavefront.os" was located in the earlier
1750 version in /etc. Now it's loaded via firmware loader, and
1751 must be in the proper firmware path, such as /lib/firmware.
1752 Copy (or symlink) the file appropriately if you get an error
1753 regarding firmware downloading after upgrading the kernel.
1755 Module snd-sonicvibes
1756 ---------------------
1758 Module for S3 SonicVibes PCI sound cards.
1759 * PINE Schubert 32 PCI
1761 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1762 - SoundCard must have onboard SRAM for this.
1763 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1765 This module supports multiple cards and autoprobe.
1767 Module snd-serial-u16550
1768 ------------------------
1770 Module for UART16550A serial MIDI ports.
1772 port - port # for UART16550A chip
1773 irq - IRQ # for UART16550A chip, -1 = poll mode
1774 speed - speed in bauds (9600,19200,38400,57600,115200)
1776 base - base for divisor in bauds (57600,115200,230400,460800)
1778 outs - number of MIDI ports in a serial port (1-4)
1780 adaptor - Type of adaptor.
1781 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1782 3 = MS-124W M/B, 4 = Generic
1784 This module supports multiple cards. This module does not support autoprobe
1785 thus the main port must be specified!!! Other options are optional.
1790 Module for Trident 4DWave DX/NX sound cards.
1791 * Best Union Miss Melody 4DWave PCI
1793 * Warpspeed ONSpeed 4DWave PCI
1796 * CHIC True Sound 4Dwave
1797 * Shark Predator4D-PCI
1798 * Jaton SonicWave 4D
1799 * SiS SI7018 PCI Audio
1800 * Hoontech SoundTrack Digital 4DWave NX
1802 pcm_channels - max channels (voices) reserved for PCM
1803 wavetable_size - max wavetable size in kB (4-?kb)
1805 This module supports multiple cards and autoprobe.
1807 The power-management is supported.
1812 Module for the Edirol UA-101 audio/MIDI interface.
1814 This module supports multiple devices, autoprobe and hotplugging.
1816 Module snd-usb-audio
1817 --------------------
1819 Module for USB audio and USB MIDI devices.
1821 vid - Vendor ID for the device (optional)
1822 pid - Product ID for the device (optional)
1823 nrpacks - Max. number of packets per URB (default: 8)
1824 async_unlink - Use async unlink mode (default: yes)
1825 device_setup - Device specific magic number (optional)
1826 - Influence depends on the device
1828 ignore_ctl_error - Ignore any USB-controller regarding mixer
1829 interface (default: no)
1831 This module supports multiple devices, autoprobe and hotplugging.
1833 NB: nrpacks parameter can be modified dynamically via sysfs.
1834 Don't put the value over 20. Changing via sysfs has no sanity
1836 NB: async_unlink=0 would cause Oops. It remains just for
1837 debugging purpose (if any).
1838 NB: ignore_ctl_error=1 may help when you get an error at accessing
1839 the mixer element such as URB error -22. This happens on some
1840 buggy USB device or the controller.
1842 Module snd-usb-caiaq
1843 --------------------
1845 Module for caiaq UB audio interfaces,
1846 * Native Instruments RigKontrol2
1847 * Native Instruments Kore Controller
1848 * Native Instruments Audio Kontrol 1
1849 * Native Instruments Audio 8 DJ
1851 This module supports multiple devices, autoprobe and hotplugging.
1853 Module snd-usb-usx2y
1854 --------------------
1856 Module for Tascam USB US-122, US-224 and US-428 devices.
1858 This module supports multiple devices, autoprobe and hotplugging.
1860 Note: you need to load the firmware via usx2yloader utility included
1861 in alsa-tools and alsa-firmware packages.
1866 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1867 8233A, 8233C, 8235, 8237 (south) bridge.
1869 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1871 joystick - Enable joystick (default off) [VIA686A/686B only]
1872 ac97_clock - AC'97 codec clock base (default 48000Hz)
1873 dxs_support - support DXS channels,
1874 0 = auto (default), 1 = enable, 2 = disable,
1875 3 = 48k only, 4 = no VRA, 5 = enable any sample
1876 rate and different sample rates on different
1878 [VIA8233/C, 8235, 8237 only]
1879 ac97_quirk - AC'97 workaround for strange hardware
1880 See "AC97 Quirk Option" section below.
1882 This module supports one chip and autoprobe.
1884 Note: on some SMP motherboards like MSI 694D the interrupts might
1885 not be generated properly. In such a case, please try to
1886 set the SMP (or MPS) version on BIOS to 1.1 instead of
1887 default value 1.4. Then the interrupt number will be
1888 assigned under 15. You might also upgrade your BIOS.
1890 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1891 channels as the first PCM. On these channels, up to 4
1892 streams can be played at the same time, and the controller
1893 can perform sample rate conversion with separate rates for
1895 As default (dxs_support = 0), 48k fixed rate is chosen
1896 except for the known devices since the output is often
1897 noisy except for 48k on some mother boards due to the
1899 Please try once dxs_support=5 and if it works on other
1900 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1901 know the PCI subsystem vendor/device id's (output of
1903 If dxs_support=5 does not work, try dxs_support=4; if it
1904 doesn't work too, try dxs_support=1. (dxs_support=1 is
1905 usually for old motherboards. The correct implemented
1906 board should work with 4 or 5.) If it still doesn't
1907 work and the default setting is ok, dxs_support=3 is the
1908 right choice. If the default setting doesn't work at all,
1909 try dxs_support=2 to disable the DXS channels.
1910 In any cases, please let us know the result and the
1911 subsystem vendor/device ids. See "Links and Addresses"
1914 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1915 additionally. The mpu_port option is for VIA686 chips only.
1917 The power-management is supported.
1919 Module snd-via82xx-modem
1920 ------------------------
1922 Module for VIA82xx AC97 modem
1924 ac97_clock - AC'97 codec clock base (default 48000Hz)
1926 This module supports one card and autoprobe.
1928 Note: The default index value of this module is -2, i.e. the first
1931 The power-management is supported.
1936 Module for virtual rawmidi devices.
1937 This module creates virtual rawmidi devices which communicate
1938 to the corresponding ALSA sequencer ports.
1940 midi_devs - MIDI devices # (1-4, default=4)
1942 This module supports multiple cards.
1947 Module for sound cards based on the Asus AV100/AV200 chips,
1948 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), Essence ST
1949 (Deluxe) and Essence STX.
1951 This module supports autoprobe and multiple cards.
1956 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1958 mic - Enable Microphone on V222 Mic (NYI)
1959 ibl - Capture IBL size. (default = 0, minimum size)
1961 This module supports multiple cards.
1963 When the driver is compiled as a module and the hotplug firmware
1964 is supported, the firmware data is loaded via hotplug automatically.
1965 Install the necessary firmware files in alsa-firmware package.
1966 When no hotplug fw loader is available, you need to load the
1967 firmware via vxloader utility in alsa-tools package. To invoke
1968 vxloader automatically, add the following to /etc/modprobe.conf
1970 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1972 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1973 /etc/modules.conf, instead.)
1974 IBL size defines the interrupts period for PCM. The smaller size
1975 gives smaller latency but leads to more CPU consumption, too.
1976 The size is usually aligned to 126. As default (=0), the smallest
1977 size is chosen. The possible IBL values can be found in
1978 /proc/asound/cardX/vx-status proc file.
1980 The power-management is supported.
1985 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1987 ibl - Capture IBL size. (default = 0, minimum size)
1989 This module supports multiple cards. The module is compiled only when
1990 PCMCIA is supported on kernel.
1992 With the older 2.6.x kernel, to activate the driver via the card
1993 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1994 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1995 longer require a config file.
1997 When the driver is compiled as a module and the hotplug firmware
1998 is supported, the firmware data is loaded via hotplug automatically.
1999 Install the necessary firmware files in alsa-firmware package.
2000 When no hotplug fw loader is available, you need to load the
2001 firmware via vxloader utility in alsa-tools package.
2003 About capture IBL, see the description of snd-vx222 module.
2005 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
2008 The power-management is supported.
2013 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
2015 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
2016 1 (auto-detect for YMF744/754 only)
2017 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
2018 1 (auto-detect for YMF744/754 only)
2019 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
2021 rear_switch - enable shared rear/line-in switch (bool)
2023 This module supports autoprobe and multiple chips.
2025 The power-management is supported.
2027 Module snd-pdaudiocf
2028 --------------------
2030 Module for Sound Core PDAudioCF sound card.
2032 The power-management is supported.
2038 The ac97_quirk option is used to enable/override the workaround for
2039 specific devices on drivers for on-board AC'97 controllers like
2040 snd-intel8x0. Some hardware have swapped output pins between Master
2041 and Headphone, or Surround (thanks to confusion of AC'97
2042 specifications from version to version :-)
2044 The driver provides the auto-detection of known problematic devices,
2045 but some might be unknown or wrongly detected. In such a case, pass
2046 the proper value with this option.
2048 The following strings are accepted:
2049 - default Don't override the default setting
2050 - none Disable the quirk
2051 - hp_only Bind Master and Headphone controls as a single control
2052 - swap_hp Swap headphone and master controls
2053 - swap_surround Swap master and surround controls
2054 - ad_sharing For AD1985, turn on OMS bit and use headphone
2055 - alc_jack For ALC65x, turn on the jack sense mode
2056 - inv_eapd Inverted EAPD implementation
2057 - mute_led Bind EAPD bit for turning on/off mute LED
2059 For backward compatibility, the corresponding integer value -1, 0,
2060 ... are accepted, too.
2062 For example, if "Master" volume control has no effect on your device
2063 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2066 Configuring Non-ISAPNP Cards
2067 ============================
2069 When the kernel is configured with ISA-PnP support, the modules
2070 supporting the isapnp cards will have module options "isapnp".
2071 If this option is set, *only* the ISA-PnP devices will be probed.
2072 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2073 together with the proper i/o and irq configuration.
2075 When the kernel is configured without ISA-PnP support, isapnp option
2076 will be not built in.
2079 Module Autoloading Support
2080 ==========================
2082 The ALSA drivers can be loaded automatically on demand by defining
2083 module aliases. The string 'snd-card-%1' is requested for ALSA native
2084 devices where %i is sound card number from zero to seven.
2086 To auto-load an ALSA driver for OSS services, define the string
2087 'sound-slot-%i' where %i means the slot number for OSS, which
2088 corresponds to the card index of ALSA. Usually, define this
2089 as the same card module.
2091 An example configuration for a single emu10k1 card is like below:
2092 ----- /etc/modprobe.conf
2093 alias snd-card-0 snd-emu10k1
2094 alias sound-slot-0 snd-emu10k1
2095 ----- /etc/modprobe.conf
2097 The available number of auto-loaded sound cards depends on the module
2098 option "cards_limit" of snd module. As default it's set to 1.
2099 To enable the auto-loading of multiple cards, specify the number of
2100 sound cards in that option.
2102 When multiple cards are available, it'd better to specify the index
2103 number for each card via module option, too, so that the order of
2104 cards is kept consistent.
2106 An example configuration for two sound cards is like below:
2108 ----- /etc/modprobe.conf
2110 options snd cards_limit=2
2111 alias snd-card-0 snd-interwave
2112 alias snd-card-1 snd-ens1371
2113 options snd-interwave index=0
2114 options snd-ens1371 index=1
2116 alias sound-slot-0 snd-interwave
2117 alias sound-slot-1 snd-ens1371
2118 ----- /etc/modprobe.conf
2120 In this example, the interwave card is always loaded as the first card
2121 (index 0) and ens1371 as the second (index 1).
2123 Alternative (and new) way to fixate the slot assignment is to use
2124 "slots" option of snd module. In the case above, specify like the
2127 options snd slots=snd-interwave,snd-ens1371
2129 Then, the first slot (#0) is reserved for snd-interwave driver, and
2130 the second (#1) for snd-ens1371. You can omit index option in each
2131 driver if slots option is used (although you can still have them at
2132 the same time as long as they don't conflict).
2134 The slots option is especially useful for avoiding the possible
2135 hot-plugging and the resultant slot conflict. For example, in the
2136 case above again, the first two slots are already reserved. If any
2137 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2138 snd-ens1371, it will be assigned to the third or later slot.
2140 When a module name is given with '!', the slot will be given for any
2141 modules but that name. For example, "slots=!snd-pcsp" will reserve
2142 the first slot for any modules but snd-pcsp.
2145 ALSA PCM devices to OSS devices mapping
2146 =======================================
2148 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2149 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2150 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2151 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2152 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2153 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2154 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2155 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2156 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2158 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2159 sound card number and second means device number. The ALSA devices
2160 have either 'c' or 'p' suffix indicating the direction, capture and
2161 playback, respectively.
2163 Please note that the device mapping above may be varied via the module
2164 options of snd-pcm-oss module.
2167 Proc interfaces (/proc/asound)
2168 ==============================
2170 /proc/asound/card#/pcm#[cp]/oss
2171 -------------------------------
2172 String "erase" - erase all additional informations about OSS applications
2173 String "<app_name> <fragments> <fragment_size> [<options>]"
2175 <app_name> - name of application with (higher priority) or without path
2176 <fragments> - number of fragments or zero if auto
2177 <fragment_size> - size of fragment in bytes or zero if auto
2178 <options> - optional parameters
2179 - disable the application tries to open a pcm device for
2180 this channel but does not want to use it.
2181 (Cause a bug or mmap needs)
2182 It's good for Quake etc...
2183 - direct don't use plugins
2184 - block force block mode (rvplayer)
2185 - non-block force non-block mode
2186 - whole-frag write only whole fragments (optimization affecting
2188 - no-silence do not fill silence ahead to avoid clicks
2189 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2190 instead of filled blocks
2192 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2193 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2194 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2197 Early Buffer Allocation
2198 =======================
2200 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2201 sometimes it's too late to find such spaces when the driver module is
2202 actually loaded due to memory fragmentation. You can pre-allocate the
2203 PCM buffers by loading snd-page-alloc module and write commands to its
2204 proc file in prior, for example, in the early boot stage like
2205 /etc/init.d/*.local scripts.
2207 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2208 usage of page allocation. In writing, you can send the following
2209 commands to the snd-page-alloc driver:
2211 - add VENDOR DEVICE MASK SIZE BUFFERS
2213 VENDOR and DEVICE are PCI vendor and device IDs. They take
2214 integer numbers (0x prefix is needed for the hex).
2215 MASK is the PCI DMA mask. Pass 0 if not restricted.
2216 SIZE is the size of each buffer to allocate. You can pass
2217 k and m suffix for KB and MB. The max number is 16MB.
2218 BUFFERS is the number of buffers to allocate. It must be greater
2219 than 0. The max number is 4.
2223 This will erase the all pre-allocated buffers which are not in
2230 ALSA project homepage
2231 http://www.alsa-project.org
2234 http://bugzilla.kernel.org/
2237 mailto:alsa-devel@alsa-project.org
2240 http://www.alsa-project.org/alsa-info.sh
git.openpandora.org / pandora-kernel.git / blob