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 ac97_codec - Workaround to specify which AC'97 codec
246 instead of probing. If this works for you
247 file a bug with your `lspci -vn` output.
249 -1 -- Default behavior.
250 0-2 -- Use the specified codec.
251 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
253 This module supports one card and autoprobe.
255 ATI IXP has two different methods to control SPDIF output. One is
256 over AC-link and another is over the "direct" SPDIF output. The
257 implementation depends on the motherboard, and you'll need to
258 choose the correct one via spdif_aclink module option.
260 The power-management is supported.
262 Module snd-atiixp-modem
263 -----------------------
265 Module for ATI IXP 150/200/250 AC97 modem controllers.
267 This module supports one card and autoprobe.
269 Note: The default index value of this module is -2, i.e. the first
272 The power-management is supported.
274 Module snd-au8810, snd-au8820, snd-au8830
275 -----------------------------------------
277 Module for Aureal Vortex, Vortex2 and Advantage device.
279 pcifix - Control PCI workarounds
280 0 = Disable all workarounds
281 1 = Force the PCI latency of the Aureal card to 0xff
282 2 = Force the Extend PCI#2 Internal Master for Efficient
283 Handling of Dummy Requests on the VIA KT133 AGP Bridge
284 3 = Force both settings
285 255 = Autodetect what is required (default)
287 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
288 EQ, mpu401, gameport. A3D and wavetable support are still in development.
289 Development and reverse engineering work is being coordinated at
290 http://savannah.nongnu.org/projects/openvortex/
291 SPDIF output has a copy of the AC97 codec output, unless you use the
292 "spdif" pcm device, which allows raw data passthru.
293 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
296 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
297 control correctly. If you have problems regarding this, try
298 another ALSA compliant mixer (alsamixer works).
303 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
305 port - port # for AZT2320 chip (PnP setup)
306 wss_port - port # for WSS (PnP setup)
307 mpu_port - port # for MPU-401 UART (PnP setup)
308 fm_port - FM port # for AZT2320 chip (PnP setup)
309 irq - IRQ # for AZT2320 (WSS) chip (PnP setup)
310 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
311 dma1 - 1st DMA # for AZT2320 (WSS) chip (PnP setup)
312 dma2 - 2nd DMA # for AZT2320 (WSS) chip (PnP setup)
314 This module supports multiple cards, PnP and autoprobe.
316 The power-management is supported.
321 Module for sound cards based on Aztech AZF3328 PCI chip.
323 joystick - Enable joystick (default off)
325 This module supports multiple cards.
330 Module for video cards based on Bt87x chips.
332 digital_rate - Override the default digital rate (Hz)
333 load_all - Load the driver even if the card model isn't known
335 This module supports multiple cards.
337 Note: The default index value of this module is -2, i.e. the first
343 Module for Creative Audigy LS and SB Live 24bit
345 This module supports multiple cards.
351 Module for sound cards based on C-Media CMI8330 ISA chips.
353 wssport - port # for CMI8330 chip (WSS)
354 wssirq - IRQ # for CMI8330 chip (WSS)
355 wssdma - first DMA # for CMI8330 chip (WSS)
356 sbport - port # for CMI8330 chip (SB16)
357 sbirq - IRQ # for CMI8330 chip (SB16)
358 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
359 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
361 This module supports multiple cards and autoprobe.
363 The power-management is supported.
368 Module for C-Media CMI8338 and 8738 PCI sound cards.
370 mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
371 1 = integrated PCI port,
372 0 = disable (default)
373 fm_port - 0x388 = legacy port,
374 1 = integrated PCI port (default),
376 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
378 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
380 This module supports autoprobe and multiple cards.
382 The power-management is supported.
387 Module for sound cards based on CS4231 ISA chips.
389 port - port # for CS4231 chip
390 mpu_port - port # for MPU-401 UART (optional), -1 = disable
391 irq - IRQ # for CS4231 chip
392 mpu_irq - IRQ # for MPU-401 UART
393 dma1 - first DMA # for CS4231 chip
394 dma2 - second DMA # for CS4231 chip
396 This module supports multiple cards. This module does not support autoprobe
397 thus main port must be specified!!! Other ports are optional.
399 The power-management is supported.
404 Module for sound cards based on CS4232/CS4232A ISA chips.
406 port - port # for CS4232 chip (PnP setup - 0x534)
407 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
408 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
409 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
410 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
411 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
412 dma1 - first DMA # for CS4232 chip (0,1,3)
413 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
414 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
416 This module supports multiple cards. This module does not support autoprobe
417 thus main port must be specified!!! Other ports are optional.
419 The power-management is supported.
424 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
425 CS4238B/CS4239 ISA chips.
427 port - port # for CS4236 chip (PnP setup - 0x534)
428 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
429 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
430 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
431 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
432 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
433 dma1 - first DMA # for CS4236 chip (0,1,3)
434 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
435 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
437 This module supports multiple cards. This module does not support autoprobe
438 (if ISA PnP is not used) thus main port and control port must be
439 specified!!! Other ports are optional.
441 The power-management is supported.
446 Module for Cirrus Logic CS4281 soundchip.
448 dual_codec - Secondary codec ID (0 = disable, default)
450 This module supports multiple cards.
452 The power-management is supported.
457 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
458 CS4624/CS4630/CS4280 PCI chips.
460 external_amp - Force to enable external amplifier.
461 thinkpad - Force to enable Thinkpad's CLKRUN control.
462 mmap_valid - Support OSS mmap mode (default = 0).
464 This module supports multiple cards and autoprobe.
465 Usually external amp and CLKRUN controls are detected automatically
466 from PCI sub vendor/device ids. If they don't work, give the options
469 The power-management is supported.
474 Module for Cyrix/NatSemi Geode 5530 chip.
476 Module snd-cs5535audio
477 ----------------------
479 Module for multifunction CS5535 companion PCI device
481 The power-management is supported.
486 Module for Echoaudio Darla20
488 This module supports multiple cards.
489 The driver requires the firmware loader support on kernel.
494 Module for Echoaudio Darla24
496 This module supports multiple cards.
497 The driver requires the firmware loader support on kernel.
502 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
505 port - Port # (PnP setup)
506 mpu_port - Port # for MPU-401 (PnP setup)
507 fm_port - Port # for FM OPL-3 (PnP setup)
508 irq - IRQ # (PnP setup)
509 mpu_irq - IRQ # for MPU-401 (PnP setup)
510 dma8 - DMA # (PnP setup)
512 This module supports multiple cards. This module is enabled only with
515 The power-management is supported.
520 Module for the dummy sound card. This "card" doesn't do any output
521 or input, but you may use this module for any application which
522 requires a sound card (like RealPlayer).
524 The power-management is supported.
529 Module for Echoaudio 3G cards (Gina3G/Layla3G)
531 This module supports multiple cards.
532 The driver requires the firmware loader support on kernel.
537 Module for EMU10K1/EMU10k2 based PCI sound cards.
538 * Sound Blaster Live!
539 * Sound Blaster PCI 512
540 * Emu APS (partially supported)
541 * Sound Blaster Audigy
543 extin - bitmap of available external inputs for FX8010 (see bellow)
544 extout - bitmap of available external outputs for FX8010 (see bellow)
545 seq_ports - allocated sequencer ports (4 by default)
546 max_synth_voices - limit of voices used for wavetable (64 by default)
547 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
548 given in MB unit. Default value is 128.
549 enable_ir - enable IR
551 This module supports multiple cards and autoprobe.
553 Input & Output configurations [extin/extout]
554 * Creative Card wo/Digital out [0x0003/0x1f03]
555 * Creative Card w/Digital out [0x0003/0x1f0f]
556 * Creative Card w/Digital CD in [0x000f/0x1f0f]
557 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
558 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
559 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
560 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
561 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
562 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
563 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
564 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
565 * Creative Card all ins and outs [0x3fff/0x7fff]
567 The power-management is supported.
572 Module for Creative Emu10k1X (SB Live Dell OEM version)
574 This module supports multiple cards.
579 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
580 * SoundBlaster PCI 64
581 * SoundBlaster PCI 128
583 joystick - Enable joystick (default off)
585 This module supports multiple cards and autoprobe.
587 The power-management is supported.
592 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
593 * SoundBlaster PCI 64
594 * SoundBlaster PCI 128
595 * SoundBlaster Vibra PCI
597 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
598 0 = disable (default), 1 = auto-detect
600 This module supports multiple cards and autoprobe.
602 The power-management is supported.
607 Module for sound cards based on ESS ES968 chip (PnP only).
609 port - port # for ES968 (SB8) chip (PnP setup)
610 irq - IRQ # for ES968 (SB8) chip (PnP setup)
611 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
613 This module supports multiple cards, PnP and autoprobe.
615 The power-management is supported.
620 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
622 port - port # for ES-1688 chip (0x220,0x240,0x260)
623 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
624 irq - IRQ # for ES-1688 chip (5,7,9,10)
625 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
626 dma8 - DMA # for ES-1688 chip (0,1,3)
628 This module supports multiple cards and autoprobe (without MPU-401 port).
633 Module for ESS AudioDrive ES-18xx sound cards.
635 port - port # for ES-18xx chip (0x220,0x240,0x260)
636 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
637 fm_port - port # for FM (optional, not used)
638 irq - IRQ # for ES-18xx chip (5,7,9,10)
639 dma1 - first DMA # for ES-18xx chip (0,1,3)
640 dma2 - first DMA # for ES-18xx chip (0,1,3)
641 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
643 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
644 port if native ISA PnP routines are not used).
645 When dma2 is equal with dma1, the driver works as half-duplex.
647 The power-management is supported.
652 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
654 This module supports multiple cards and autoprobe.
656 The power-management is supported.
661 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
663 total_bufsize - total buffer size in kB (1-4096kB)
664 pcm_substreams_p - playback channels (1-8, default=2)
665 pcm_substreams_c - capture channels (1-8, default=0)
666 clock - clock (0 = auto-detection)
667 use_pm - support the power-management (0 = off, 1 = on,
669 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
670 joystick - enable joystick (default off)
672 This module supports multiple cards and autoprobe.
674 The power-management is supported.
679 Module for ForteMedia FM801 based PCI sound cards.
681 tea575x_tuner - Enable TEA575x tuner
682 - 1 = MediaForte 256-PCS
683 - 2 = MediaForte 256-PCPR
684 - 3 = MediaForte 64-PCR
685 - High 16-bits are video (radio) device number + 1
686 - example: 0x10002 (MediaForte 256-PCPR, device 1)
688 This module supports multiple cards and autoprobe.
690 The power-management is supported.
695 Module for Echoaudio Gina20
697 This module supports multiple cards.
698 The driver requires the firmware loader support on kernel.
703 Module for Echoaudio Gina24
705 This module supports multiple cards.
706 The driver requires the firmware loader support on kernel.
708 Module snd-gusclassic
709 ---------------------
711 Module for Gravis UltraSound Classic sound card.
713 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
714 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
715 dma1 - DMA # for GF1 chip (1,3,5,6,7)
716 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
717 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
718 voices - GF1 voices limit (14-32)
719 pcm_voices - reserved PCM voices
721 This module supports multiple cards and autoprobe.
723 Module snd-gusextreme
724 ---------------------
726 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
728 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
729 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
730 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
731 irq - IRQ # for ES-1688 chip (5,7,9,10)
732 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
733 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
734 dma8 - DMA # for ES-1688 chip (0,1,3)
735 dma1 - DMA # for GF1 chip (1,3,5,6,7)
736 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
737 voices - GF1 voices limit (14-32)
738 pcm_voices - reserved PCM voices
740 This module supports multiple cards and autoprobe (without MPU-401 port).
745 Module for Gravis UltraSound MAX sound card.
747 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
748 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
749 dma1 - DMA # for GF1 chip (1,3,5,6,7)
750 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
751 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
752 voices - GF1 voices limit (14-32)
753 pcm_voices - reserved PCM voices
755 This module supports multiple cards and autoprobe.
760 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
761 ATI SB450, SB600, RS600,
765 model - force the model name
766 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
767 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
768 single_cmd - Use single immediate commands to communicate with
769 codecs (for debugging only)
770 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
772 This module supports one card and autoprobe.
774 Each codec may have a model table for different configurations.
775 If your machine isn't listed there, the default (usually minimal)
776 configuration is set up. You can pass "model=<name>" option to
777 specify a certain model in such a case. There are different
778 models depending on the codec chip.
780 Model name Description
781 ---------- -----------
783 3stack 3-jack in back and a headphone out
784 3stack-digout 3-jack in back, a HP out and a SPDIF out
785 5stack 5-jack in back, 2-jack in front
786 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
787 6stack 6-jack in back, 2-jack in front
788 6stack-digout 6-jack with a SPDIF out
790 z71v 3-jack (HP shared SPDIF)
791 asus 3-jack (ASUS Mobo)
793 asus-dig ASUS with SPDIF out
794 asus-dig2 ASUS with SPDIF out (using GPIO2)
796 fujitsu Fujitsu Laptops (Pi1536)
798 lg LG laptop (m1 express dual)
799 lg-lw LG LW20/LW25 laptop
801 clevo Clevo laptops (m520G, m665n)
802 test for testing/debugging purpose, almost all controls can be
803 adjusted. Appearing only when compiled with
805 auto auto-config reading BIOS (default)
809 hp-3013 HP machines (3013-variant)
810 fujitsu Fujitsu S7020
812 basic fixed pin assignment (old default model)
813 auto auto-config reading BIOS (default)
816 fujitsu Fujitsu Laptop
817 hp-bpc HP xw4400/6400/8400/9400 laptops
818 hp-bpc-d7000 HP BPC D7000
820 hippo Hippo (ATI) with jack detection, Sony UX-90s
821 hippo_1 Hippo (Benq) with jack detection
822 basic fixed pin assignment w/o SPDIF
823 auto auto-config reading BIOS (default)
827 auto auto-config reading BIOS (default)
830 3stack-dig 3-jack with SPDIF I/O
831 6stack-dig 6-jack digital with SPDIF I/O
833 macpro MacPro support
835 auto auto-config reading BIOS (default)
838 3stack-dig 3-jack with SPDIF I/O
839 6stack-dig 6-jack digital with SPDIF I/O
840 3stack-6ch 3-jack 6-channel
841 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
842 6stack-dig-demo 6-jack digital for Intel demo board
843 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
844 medion Medion Laptops
846 targa-2ch-dig Targs/MSI with 2-channel
847 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
848 auto auto-config reading BIOS (default)
852 3stack-dig 3-jack with SPDIF I/O
853 6stack-dig 6-jack with SPDIF I/O
854 3stack-660 3-jack (for ALC660)
855 uniwill-m31 Uniwill M31 laptop
856 toshiba Toshiba laptop support
857 asus Asus laptop support
858 asus-laptop ASUS F2/F3 laptops
859 auto auto-config reading BIOS (default)
863 3stack-dig 3-jack with SPDIF OUT
864 6stack-dig 6-jack with SPDIF OUT
865 3stack-660 3-jack (for ALC660VD)
866 3stack-660-digout 3-jack with SPDIF OUT (for ALC660VD)
867 lenovo Lenovo 3000 C200
868 auto auto-config reading BIOS (default)
871 minimal 3-jack in back
872 min_fp 3-jack in back, 2-jack in front
873 full 6-jack in back, 2-jack in front
874 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
875 allout 5-jack in back, 2-jack in front, SPDIF out
876 auto auto-config reading BIOS (default)
879 3stack 3-stack mode (default)
886 basic 3-jack (default)
888 thinkpad Lenovo Thinkpad T60/X60/Z60
895 basic default configuration
896 thinkpad Lenovo Thinkpad T61/X61
899 6stack 6-jack, separate surrounds (default)
900 3stack 3-stack, shared surrounds
901 laptop 2-channel only (FSC V2060, Samsung M50)
902 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
903 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
907 6stack-dig ditto with SPDIF
909 3stack-dig ditto with SPDIF
910 laptop 3-jack with hp-jack automute
911 laptop-dig ditto with SPDIF
912 auto auto-config reading BIOS (default)
916 test for testing/debugging purpose, almost all controls
917 can be adjusted. Appearing only when compiled with
921 laptop Basic Laptop config
922 laptop-hp Laptop config for some HP models (subdevice 30A5)
923 laptop-eapd Laptop config with EAPD support
924 test for testing/debugging purpose, almost all controls
925 can be adjusted. Appearing only when compiled with
934 5stack D945 5stack + SPDIF
936 intel-mac-v1 Intel Mac Type 1
937 intel-mac-v2 Intel Mac Type 2
938 intel-mac-v3 Intel Mac Type 3
939 intel-mac-v4 Intel Mac Type 4
940 intel-mac-v5 Intel Mac Type 5
941 macmini Intel Mac Mini (equivalent with type 3)
942 macbook Intel Mac Book (eq. type 5)
943 macbook-pro-v1 Intel Mac Book Pro 1st generation (eq. type 3)
944 macbook-pro Intel Mac Book Pro 2nd generation (eq. type 3)
945 imac-intel Intel iMac (eq. type 2)
946 imac-intel-20 Intel iMac (newer version) (eq. type 3)
949 ref Reference board, base config
950 m2-2 Some Gateway MX series laptops
951 m6 Some Gateway NX series laptops
952 pa6 Gateway NX860 series
954 STAC9227/9228/9229/927x
957 5stack D965 5stack + SPDIF
960 vaio Setup for VAIO FE550G/SZ110
961 vaio-ar Setup for VAIO AR
963 The model name "genric" is treated as a special case. When this
964 model is given, the driver uses the generic codec parser without
965 "codec-patch". It's sometimes good for testing and debugging.
967 If the default configuration doesn't work and one of the above
968 matches with your device, report it together with the PCI
969 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
970 ML (see the section "Links and Addresses").
972 Note 2: If you get click noises on output, try the module option
973 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
974 register value without FIFO size correction as the current
975 DMA pointer. position_fix=2 will make the driver to use
976 the position buffer instead of reading SD_LPIB register.
977 (Usually SD_LPLIB register is more accurate than the
980 NB: If you get many "azx_get_response timeout" messages at
981 loading, it's likely a problem of interrupts (e.g. ACPI irq
982 routing). Try to boot with options like "pci=noacpi". Also, you
983 can try "single_cmd=1" module option. This will switch the
984 communication method between HDA controller and codecs to the
985 single immediate commands instead of CORB/RIRB. Basically, the
986 single command mode is provided only for BIOS, and you won't get
987 unsolicited events, too. But, at least, this works independently
988 from the irq. Remember this is a last resort, and should be
989 avoided as much as possible...
991 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
992 On some hardwares, you may need to add a proper probe_mask option
993 to avoid the "azx_get_response timeout" problem above, instead.
994 This occurs when the access to non-existing or non-working codec slot
995 (likely a modem one) causes a stall of the communication via HD-audio
996 bus. You can see which codec slots are probed by enabling
997 CONFIG_SND_DEBUG_DETECT, or simply from the file name of the codec
998 proc files. Then limit the slots to probe by probe_mask option.
999 For example, probe_mask=1 means to probe only the first slot, and
1000 probe_mask=4 means only the third slot.
1002 The power-management is supported.
1007 Module for RME Hammerfall DSP audio interface(s)
1009 This module supports multiple cards.
1011 Note: The firmware data can be automatically loaded via hotplug
1012 when CONFIG_FW_LOADER is set. Otherwise, you need to load
1013 the firmware via hdsploader utility included in alsa-tools
1015 The firmware data is found in alsa-firmware package.
1017 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1018 module did formerly. It will allocate the buffers in advance
1019 when any HDSP cards are found. To make the buffer
1020 allocation sure, load snd-page-alloc module in the early
1021 stage of boot sequence. See "Early Buffer Allocation"
1027 Module for RME HDSP MADI board.
1029 precise_ptr - Enable precise pointer, or disable.
1030 line_outs_monitor - Send playback streams to analog outs by default.
1031 enable_monitor - Enable Analog Out on Channel 63/64 by default.
1033 See hdspm.txt for details.
1038 Module for Envy24 (ICE1712) based PCI sound cards.
1039 * MidiMan M Audio Delta 1010
1040 * MidiMan M Audio Delta 1010LT
1041 * MidiMan M Audio Delta DiO 2496
1042 * MidiMan M Audio Delta 66
1043 * MidiMan M Audio Delta 44
1044 * MidiMan M Audio Delta 410
1045 * MidiMan M Audio Audiophile 2496
1048 * TerraTec EWX 24/96
1049 * TerraTec DMX 6Fire
1051 * Hoontech SoundTrack DSP 24
1052 * Hoontech SoundTrack DSP 24 Value
1053 * Hoontech SoundTrack DSP 24 Media 7.1
1054 * Event Electronics, EZ8
1056 * Lionstracs, Mediastaton
1058 model - Use the given board model, one of the following:
1059 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1060 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1061 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1062 phase88, mediastation
1063 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1064 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1065 in msec resolution, default value is 500 (0.5 sec)
1067 This module supports multiple cards and autoprobe. Note: The consumer part
1068 is not used with all Envy24 based cards (for example in the MidiMan Delta
1071 Note: The supported board is detected by reading EEPROM or PCI
1072 SSID (if EEPROM isn't available). You can override the
1073 model by passing "model" module option in case that the
1074 driver isn't configured properly or you want to try another
1080 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1081 * MidiMan M Audio Revolution 5.1
1082 * MidiMan M Audio Revolution 7.1
1083 * MidiMan M Audio Audiophile 192
1085 * TerraTec Aureon 5.1 Sky
1086 * TerraTec Aureon 7.1 Space
1087 * TerraTec Aureon 7.1 Universe
1090 * AudioTrak Prodigy 7.1
1091 * AudioTrak Prodigy 7.1LT
1092 * AudioTrak Prodigy 192
1094 * Albatron K8X800 Pro II
1095 * Chaintech ZNF3-150
1096 * Chaintech ZNF3-250
1101 model - Use the given board model, one of the following:
1102 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1103 prodigy192, aureon51, aureon71, universe, ap192,
1104 k8x800, phase22, phase28, ms300, av710
1106 This module supports multiple cards and autoprobe.
1108 Note: The supported board is detected by reading EEPROM or PCI
1109 SSID (if EEPROM isn't available). You can override the
1110 model by passing "model" module option in case that the
1111 driver isn't configured properly or you want to try another
1117 Module for Echoaudio Indigo
1119 This module supports multiple cards.
1120 The driver requires the firmware loader support on kernel.
1125 Module for Echoaudio Indigo DJ
1127 This module supports multiple cards.
1128 The driver requires the firmware loader support on kernel.
1133 Module for Echoaudio Indigo IO
1135 This module supports multiple cards.
1136 The driver requires the firmware loader support on kernel.
1141 Module for AC'97 motherboards from Intel and compatibles.
1142 * Intel i810/810E, i815, i820, i830, i84x, MX440
1143 ICH5, ICH6, ICH7, ESB2
1144 * SiS 7012 (SiS 735)
1145 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1147 * AMD AMD768, AMD8111
1150 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1151 ac97_quirk - AC'97 workaround for strange hardware
1152 See "AC97 Quirk Option" section below.
1153 buggy_irq - Enable workaround for buggy interrupts on some
1154 motherboards (default yes on nForce chips,
1156 buggy_semaphore - Enable workaround for hardwares with buggy
1157 semaphores (e.g. on some ASUS laptops)
1159 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1160 from the controller chip
1161 (0 = off, 1 = on, -1 = default)
1163 This module supports one chip and autoprobe.
1165 Note: the latest driver supports auto-detection of chip clock.
1166 if you still encounter too fast playback, specify the clock
1167 explicitly via the module option "ac97_clock=41194".
1169 Joystick/MIDI ports are not supported by this driver. If your
1170 motherboard has these devices, use the ns558 or snd-mpu401
1171 modules, respectively.
1173 The power-management is supported.
1175 Module snd-intel8x0m
1176 --------------------
1178 Module for Intel ICH (i8x0) chipset MC97 modems.
1179 * Intel i810/810E, i815, i820, i830, i84x, MX440
1181 * SiS 7013 (SiS 735)
1182 * NVidia NForce, NForce2, NForce2s, NForce3
1186 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1188 This module supports one card and autoprobe.
1190 Note: The default index value of this module is -2, i.e. the first
1193 The power-management is supported.
1195 Module snd-interwave
1196 --------------------
1198 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1199 and other sound cards based on AMD InterWave (tm) chip.
1201 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1202 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1203 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1204 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1205 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1206 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1207 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1208 effect - 1 = InterWave effects enable (default 0);
1211 This module supports multiple cards, autoprobe and ISA PnP.
1213 Module snd-interwave-stb
1214 ------------------------
1216 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1217 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1218 circuit for extended control of bass, treble and master volume.
1220 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1221 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1222 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1223 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1224 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1225 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1226 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1227 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1228 effect - 1 = InterWave effects enable (default 0);
1231 This module supports multiple cards, autoprobe and ISA PnP.
1236 Module for Korg 1212 IO PCI card
1238 This module supports multiple cards.
1243 Module for Echoaudio Layla20
1245 This module supports multiple cards.
1246 The driver requires the firmware loader support on kernel.
1251 Module for Echoaudio Layla24
1253 This module supports multiple cards.
1254 The driver requires the firmware loader support on kernel.
1259 Module for Allegro/Maestro3 chips
1261 external_amp - enable external amp (enabled by default)
1262 amp_gpio - GPIO pin number for external amp (0-15) or
1263 -1 for default pin (8 for allegro, 1 for
1266 This module supports autoprobe and multiple chips.
1268 Note: the binding of amplifier is dependent on hardware.
1269 If there is no sound even though all channels are unmuted, try to
1270 specify other gpio connection via amp_gpio option.
1271 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1274 The power-management is supported.
1279 Module for Echoaudio Mia
1281 This module supports multiple cards.
1282 The driver requires the firmware loader support on kernel.
1287 Module for Miro soundcards: miroSOUND PCM 1 pro,
1289 miroSOUND PCM 20 Radio.
1291 port - Port # (0x530,0x604,0xe80,0xf40)
1292 irq - IRQ # (5,7,9,10,11)
1293 dma1 - 1st dma # (0,1,3)
1294 dma2 - 2nd dma # (0,1)
1295 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1296 mpu_irq - MPU-401 irq # (5,7,9,10)
1297 fm_port - FM Port # (0x388)
1298 wss - enable WSS mode
1299 ide - enable onboard ide support
1304 Module for Digigram miXart8 sound cards.
1306 This module supports multiple cards.
1307 Note: One miXart8 board will be represented as 4 alsa cards.
1308 See MIXART.txt for details.
1310 When the driver is compiled as a module and the hotplug firmware
1311 is supported, the firmware data is loaded via hotplug automatically.
1312 Install the necessary firmware files in alsa-firmware package.
1313 When no hotplug fw loader is available, you need to load the
1314 firmware via mixartloader utility in alsa-tools package.
1319 Module for Echoaudio Mona
1321 This module supports multiple cards.
1322 The driver requires the firmware loader support on kernel.
1327 Module for MPU-401 UART devices.
1329 port - port number or -1 (disable)
1330 irq - IRQ number or -1 (disable)
1331 pnp - PnP detection - 0 = disable, 1 = enable (default)
1332 uart_enter - Issue UART_ENTER command at open - bool, default = on
1334 This module supports multiple devices and PnP.
1339 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1342 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1343 irq - IRQ # for MTPAV (7,5, default=7)
1344 hwports - number of supported hardware ports, default=8.
1346 Module supports only 1 card. This module has no enable option.
1351 Module for Ego Systems (ESI) Miditerminal 4140
1353 This module supports multiple devices.
1354 Requires parport (CONFIG_PARPORT).
1359 Module for NeoMagic NM256AV/ZX chips
1361 playback_bufsize - max playback frame size in kB (4-128kB)
1362 capture_bufsize - max capture frame size in kB (4-128kB)
1363 force_ac97 - 0 or 1 (disabled by default)
1364 buffer_top - specify buffer top address
1365 use_cache - 0 or 1 (disabled by default)
1366 vaio_hack - alias buffer_top=0x25a800
1367 reset_workaround - enable AC97 RESET workaround for some laptops
1368 reset_workaround2 - enable extended AC97 RESET workaround for some
1371 This module supports one chip and autoprobe.
1373 The power-management is supported.
1375 Note: on some notebooks the buffer address cannot be detected
1376 automatically, or causes hang-up during initialization.
1377 In such a case, specify the buffer top address explicitly via
1378 the buffer_top option.
1380 Sony F250: buffer_top=0x25a800
1381 Sony F270: buffer_top=0x272800
1382 The driver supports only ac97 codec. It's possible to force
1383 to initialize/use ac97 although it's not detected. In such a
1384 case, use force_ac97=1 option - but *NO* guarantee whether it
1387 Note: The NM256 chip can be linked internally with non-AC97
1388 codecs. This driver supports only the AC97 codec, and won't work
1389 with machines with other (most likely CS423x or OPL3SAx) chips,
1390 even though the device is detected in lspci. In such a case, try
1391 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1392 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1393 and proper hardware parameters in the case without ISA PnP.
1395 Note: some laptops need a workaround for AC97 RESET. For the
1396 known hardware like Dell Latitude LS and Sony PCG-F305, this
1397 workaround is enabled automatically. For other laptops with a
1398 hard freeze, you can try reset_workaround=1 option.
1400 Note: Dell Latitude CSx laptops have another problem regarding
1401 AC97 RESET. On these laptops, reset_workaround2 option is
1402 turned on as default. This option is worth to try if the
1403 previous reset_workaround option doesn't help.
1405 Note: This driver is really crappy. It's a porting from the
1406 OSS driver, which is a result of black-magic reverse engineering.
1407 The detection of codec will fail if the driver is loaded *after*
1408 X-server as described above. You might be able to force to load
1409 the module, but it may result in hang-up. Hence, make sure that
1410 you load this module *before* X if you encounter this kind of
1416 Module for Yamaha OPL3-SA2/SA3 sound cards.
1418 port - control port # for OPL3-SA chip (0x370)
1419 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1420 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1421 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1422 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1423 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1424 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1425 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1426 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1428 This module supports multiple cards and ISA PnP. It does not support
1429 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1431 The power-management is supported.
1433 Module snd-opti92x-ad1848
1434 -------------------------
1436 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1437 Module works with OAK Mozart cards as well.
1439 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1440 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1441 fm_port - port # for OPL3 device (0x388)
1442 irq - IRQ # for WSS chip (5,7,9,10,11)
1443 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1444 dma1 - first DMA # for WSS chip (0,1,3)
1446 This module supports only one card, autoprobe and PnP.
1448 Module snd-opti92x-cs4231
1449 -------------------------
1451 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1453 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1454 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1455 fm_port - port # for OPL3 device (0x388)
1456 irq - IRQ # for WSS chip (5,7,9,10,11)
1457 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1458 dma1 - first DMA # for WSS chip (0,1,3)
1459 dma2 - second DMA # for WSS chip (0,1,3)
1461 This module supports only one card, autoprobe and PnP.
1466 Module for sound cards based on OPTi 82c93x chips.
1468 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1469 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1470 fm_port - port # for OPL3 device (0x388)
1471 irq - IRQ # for WSS chip (5,7,9,10,11)
1472 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1473 dma1 - first DMA # for WSS chip (0,1,3)
1474 dma2 - second DMA # for WSS chip (0,1,3)
1476 This module supports only one card, autoprobe and PnP.
1481 Module for Digigram PCXHR boards
1483 This module supports multiple cards.
1485 Module snd-portman2x4
1486 ---------------------
1488 Module for Midiman Portman 2x4 parallel port MIDI interface
1490 This module supports multiple cards.
1492 Module snd-powermac (on ppc only)
1493 ---------------------------------
1495 Module for PowerMac, iMac and iBook on-board soundchips
1497 enable_beep - enable beep using PCM (enabled as default)
1499 Module supports autoprobe a chip.
1501 Note: the driver may have problems regarding endianess.
1503 The power-management is supported.
1505 Module snd-pxa2xx-ac97 (on arm only)
1506 ------------------------------------
1508 Module for AC97 driver for the Intel PXA2xx chip
1510 For ARM architecture only.
1512 The power-management is supported.
1517 Module for Conexant Riptide chip
1519 joystick_port - Joystick port # (default: 0x200)
1520 mpu_port - MPU401 port # (default: 0x330)
1521 opl3_port - OPL3 port # (default: 0x388)
1523 This module supports multiple cards.
1524 The driver requires the firmware loader support on kernel.
1525 You need to install the firmware file "riptide.hex" to the standard
1526 firmware path (e.g. /lib/firmware).
1531 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1532 Prodif96 and Prodif Gold) sound cards.
1534 This module supports multiple cards.
1539 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1541 This module supports multiple cards.
1546 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1548 precise_ptr - Enable precise pointer (doesn't work reliably).
1551 This module supports multiple cards.
1553 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1554 module did formerly. It will allocate the buffers in advance
1555 when any RME9652 cards are found. To make the buffer
1556 allocation sure, load snd-page-alloc module in the early
1557 stage of boot sequence. See "Early Buffer Allocation"
1560 Module snd-sa11xx-uda1341 (on arm only)
1561 ---------------------------------------
1563 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1565 Module supports only one card.
1566 Module has no enable and index options.
1568 The power-management is supported.
1573 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1577 port - port # for SB DSP chip (0x220,0x240,0x260)
1578 irq - IRQ # for SB DSP chip (5,7,9,10)
1579 dma8 - DMA # for SB DSP chip (1,3)
1581 This module supports multiple cards and autoprobe.
1583 The power-management is supported.
1585 Module snd-sb16 and snd-sbawe
1586 -----------------------------
1588 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1589 SoundBlaster AWE 32 (PnP),
1590 SoundBlaster AWE 64 PnP
1592 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1593 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1594 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1595 (snd-sbawe module only)
1596 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1597 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1598 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1599 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1600 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1601 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1603 This module supports multiple cards, autoprobe and ISA PnP.
1605 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1606 disable 16bit DMA with dma16 = -1 module parameter.
1607 Also, all Sound Blaster 16 type cards can operate in 16-bit
1608 half duplex mode through 8-bit DMA channel by disabling their
1611 The power-management is supported.
1616 Module for Aztech Sound Galaxy sound card.
1618 sbport - Port # for SB16 interface (0x220,0x240)
1619 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1620 irq - IRQ # (7,9,10,11)
1623 This module supports multiple cards.
1625 The power-management is supported.
1630 Module for ENSONIQ SoundScape PnP cards.
1632 port - Port # (PnP setup)
1633 irq - IRQ # (PnP setup)
1634 mpu_irq - MPU-401 IRQ # (PnP setup)
1635 dma - DMA # (PnP setup)
1637 This module supports multiple cards. ISA PnP must be enabled.
1638 You need sscape_ctl tool in alsa-tools package for loading
1641 Module snd-sun-amd7930 (on sparc only)
1642 --------------------------------------
1644 Module for AMD7930 sound chips found on Sparcs.
1646 This module supports multiple cards.
1648 Module snd-sun-cs4231 (on sparc only)
1649 -------------------------------------
1651 Module for CS4231 sound chips found on Sparcs.
1653 This module supports multiple cards.
1655 Module snd-sun-dbri (on sparc only)
1656 -----------------------------------
1658 Module for DBRI sound chips found on Sparcs.
1660 This module supports multiple cards.
1662 Module snd-wavefront
1663 --------------------
1665 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1667 cs4232_pcm_port - Port # for CS4232 PCM interface.
1668 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1669 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1670 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1671 use_cs4232_midi - Use CS4232 MPU-401 interface
1672 (inaccessibly located inside your computer)
1673 ics2115_port - Port # for ICS2115
1674 ics2115_irq - IRQ # for ICS2115
1675 fm_port - FM OPL-3 Port #
1676 dma1 - DMA1 # for CS4232 PCM interface.
1677 dma2 - DMA2 # for CS4232 PCM interface.
1678 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1680 This module supports multiple cards and ISA PnP.
1682 Module snd-sonicvibes
1683 ---------------------
1685 Module for S3 SonicVibes PCI sound cards.
1686 * PINE Schubert 32 PCI
1688 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1689 - SoundCard must have onboard SRAM for this.
1690 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1692 This module supports multiple cards and autoprobe.
1694 Module snd-serial-u16550
1695 ------------------------
1697 Module for UART16550A serial MIDI ports.
1699 port - port # for UART16550A chip
1700 irq - IRQ # for UART16550A chip, -1 = poll mode
1701 speed - speed in bauds (9600,19200,38400,57600,115200)
1703 base - base for divisor in bauds (57600,115200,230400,460800)
1705 outs - number of MIDI ports in a serial port (1-4)
1707 adaptor - Type of adaptor.
1708 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1709 3 = MS-124W M/B, 4 = Generic
1711 This module supports multiple cards. This module does not support autoprobe
1712 thus the main port must be specified!!! Other options are optional.
1717 Module for Trident 4DWave DX/NX sound cards.
1718 * Best Union Miss Melody 4DWave PCI
1720 * Warpspeed ONSpeed 4DWave PCI
1723 * CHIC True Sound 4Dwave
1724 * Shark Predator4D-PCI
1725 * Jaton SonicWave 4D
1727 pcm_channels - max channels (voices) reserved for PCM
1728 wavetable_size - max wavetable size in kB (4-?kb)
1730 This module supports multiple cards and autoprobe.
1732 The power-management is supported.
1734 Module snd-usb-audio
1735 --------------------
1737 Module for USB audio and USB MIDI devices.
1739 vid - Vendor ID for the device (optional)
1740 pid - Product ID for the device (optional)
1741 device_setup - Device specific magic number (optional)
1742 - Influence depends on the device
1745 This module supports multiple devices, autoprobe and hotplugging.
1747 Module snd-usb-caiaq
1748 --------------------
1750 Module for caiaq UB audio interfaces,
1751 * Native Instruments RigKontrol2
1752 * Native Instruments Kore Controller
1753 * Native Instruments Audio Kontrol 1
1754 * Native Instruments Audio 8 DJ
1756 This module supports multiple devices, autoprobe and hotplugging.
1758 Module snd-usb-usx2y
1759 --------------------
1761 Module for Tascam USB US-122, US-224 and US-428 devices.
1763 This module supports multiple devices, autoprobe and hotplugging.
1765 Note: you need to load the firmware via usx2yloader utility included
1766 in alsa-tools and alsa-firmware packages.
1771 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1772 8233A, 8233C, 8235, 8237 (south) bridge.
1774 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1776 joystick - Enable joystick (default off) [VIA686A/686B only]
1777 ac97_clock - AC'97 codec clock base (default 48000Hz)
1778 dxs_support - support DXS channels,
1779 0 = auto (default), 1 = enable, 2 = disable,
1780 3 = 48k only, 4 = no VRA, 5 = enable any sample
1781 rate and different sample rates on different
1783 [VIA8233/C, 8235, 8237 only]
1784 ac97_quirk - AC'97 workaround for strange hardware
1785 See "AC97 Quirk Option" section below.
1787 This module supports one chip and autoprobe.
1789 Note: on some SMP motherboards like MSI 694D the interrupts might
1790 not be generated properly. In such a case, please try to
1791 set the SMP (or MPS) version on BIOS to 1.1 instead of
1792 default value 1.4. Then the interrupt number will be
1793 assigned under 15. You might also upgrade your BIOS.
1795 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1796 channels as the first PCM. On these channels, up to 4
1797 streams can be played at the same time, and the controller
1798 can perform sample rate conversion with separate rates for
1800 As default (dxs_support = 0), 48k fixed rate is chosen
1801 except for the known devices since the output is often
1802 noisy except for 48k on some mother boards due to the
1804 Please try once dxs_support=5 and if it works on other
1805 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1806 know the PCI subsystem vendor/device id's (output of
1808 If dxs_support=5 does not work, try dxs_support=4; if it
1809 doesn't work too, try dxs_support=1. (dxs_support=1 is
1810 usually for old motherboards. The correct implemented
1811 board should work with 4 or 5.) If it still doesn't
1812 work and the default setting is ok, dxs_support=3 is the
1813 right choice. If the default setting doesn't work at all,
1814 try dxs_support=2 to disable the DXS channels.
1815 In any cases, please let us know the result and the
1816 subsystem vendor/device ids. See "Links and Addresses"
1819 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1820 additionally. The mpu_port option is for VIA686 chips only.
1822 The power-management is supported.
1824 Module snd-via82xx-modem
1825 ------------------------
1827 Module for VIA82xx AC97 modem
1829 ac97_clock - AC'97 codec clock base (default 48000Hz)
1831 This module supports one card and autoprobe.
1833 Note: The default index value of this module is -2, i.e. the first
1836 The power-management is supported.
1841 Module for virtual rawmidi devices.
1842 This module creates virtual rawmidi devices which communicate
1843 to the corresponding ALSA sequencer ports.
1845 midi_devs - MIDI devices # (1-4, default=4)
1847 This module supports multiple cards.
1852 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1854 mic - Enable Microphone on V222 Mic (NYI)
1855 ibl - Capture IBL size. (default = 0, minimum size)
1857 This module supports multiple cards.
1859 When the driver is compiled as a module and the hotplug firmware
1860 is supported, the firmware data is loaded via hotplug automatically.
1861 Install the necessary firmware files in alsa-firmware package.
1862 When no hotplug fw loader is available, you need to load the
1863 firmware via vxloader utility in alsa-tools package. To invoke
1864 vxloader automatically, add the following to /etc/modprobe.conf
1866 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1868 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1869 /etc/modules.conf, instead.)
1870 IBL size defines the interrupts period for PCM. The smaller size
1871 gives smaller latency but leads to more CPU consumption, too.
1872 The size is usually aligned to 126. As default (=0), the smallest
1873 size is chosen. The possible IBL values can be found in
1874 /proc/asound/cardX/vx-status proc file.
1876 The power-management is supported.
1881 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1883 ibl - Capture IBL size. (default = 0, minimum size)
1885 This module supports multiple cards. The module is compiled only when
1886 PCMCIA is supported on kernel.
1888 With the older 2.6.x kernel, to activate the driver via the card
1889 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1890 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1891 longer require a config file.
1893 When the driver is compiled as a module and the hotplug firmware
1894 is supported, the firmware data is loaded via hotplug automatically.
1895 Install the necessary firmware files in alsa-firmware package.
1896 When no hotplug fw loader is available, you need to load the
1897 firmware via vxloader utility in alsa-tools package.
1899 About capture IBL, see the description of snd-vx222 module.
1901 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1904 The power-management is supported.
1909 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1911 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1912 1 (auto-detect for YMF744/754 only)
1913 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1914 1 (auto-detect for YMF744/754 only)
1915 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1917 rear_switch - enable shared rear/line-in switch (bool)
1919 This module supports autoprobe and multiple chips.
1921 The power-management is supported.
1923 Module snd-pdaudiocf
1924 --------------------
1926 Module for Sound Core PDAudioCF sound card.
1928 The power-management is supported.
1934 The ac97_quirk option is used to enable/override the workaround for
1935 specific devices on drivers for on-board AC'97 controllers like
1936 snd-intel8x0. Some hardware have swapped output pins between Master
1937 and Headphone, or Surround (thanks to confusion of AC'97
1938 specifications from version to version :-)
1940 The driver provides the auto-detection of known problematic devices,
1941 but some might be unknown or wrongly detected. In such a case, pass
1942 the proper value with this option.
1944 The following strings are accepted:
1945 - default Don't override the default setting
1946 - none Disable the quirk
1947 - hp_only Bind Master and Headphone controls as a single control
1948 - swap_hp Swap headphone and master controls
1949 - swap_surround Swap master and surround controls
1950 - ad_sharing For AD1985, turn on OMS bit and use headphone
1951 - alc_jack For ALC65x, turn on the jack sense mode
1952 - inv_eapd Inverted EAPD implementation
1953 - mute_led Bind EAPD bit for turning on/off mute LED
1955 For backward compatibility, the corresponding integer value -1, 0,
1956 ... are accepted, too.
1958 For example, if "Master" volume control has no effect on your device
1959 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1962 Configuring Non-ISAPNP Cards
1963 ============================
1965 When the kernel is configured with ISA-PnP support, the modules
1966 supporting the isapnp cards will have module options "isapnp".
1967 If this option is set, *only* the ISA-PnP devices will be probed.
1968 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1969 together with the proper i/o and irq configuration.
1971 When the kernel is configured without ISA-PnP support, isapnp option
1972 will be not built in.
1975 Module Autoloading Support
1976 ==========================
1978 The ALSA drivers can be loaded automatically on demand by defining
1979 module aliases. The string 'snd-card-%1' is requested for ALSA native
1980 devices where %i is sound card number from zero to seven.
1982 To auto-load an ALSA driver for OSS services, define the string
1983 'sound-slot-%i' where %i means the slot number for OSS, which
1984 corresponds to the card index of ALSA. Usually, define this
1985 as the same card module.
1987 An example configuration for a single emu10k1 card is like below:
1988 ----- /etc/modprobe.conf
1989 alias snd-card-0 snd-emu10k1
1990 alias sound-slot-0 snd-emu10k1
1991 ----- /etc/modprobe.conf
1993 The available number of auto-loaded sound cards depends on the module
1994 option "cards_limit" of snd module. As default it's set to 1.
1995 To enable the auto-loading of multiple cards, specify the number of
1996 sound cards in that option.
1998 When multiple cards are available, it'd better to specify the index
1999 number for each card via module option, too, so that the order of
2000 cards is kept consistent.
2002 An example configuration for two sound cards is like below:
2004 ----- /etc/modprobe.conf
2006 options snd cards_limit=2
2007 alias snd-card-0 snd-interwave
2008 alias snd-card-1 snd-ens1371
2009 options snd-interwave index=0
2010 options snd-ens1371 index=1
2012 alias sound-slot-0 snd-interwave
2013 alias sound-slot-1 snd-ens1371
2014 ----- /etc/modprobe.conf
2016 In this example, the interwave card is always loaded as the first card
2017 (index 0) and ens1371 as the second (index 1).
2020 ALSA PCM devices to OSS devices mapping
2021 =======================================
2023 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2024 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2025 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2026 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2027 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2028 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2029 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2030 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2031 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2033 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2034 sound card number and second means device number. The ALSA devices
2035 have either 'c' or 'p' suffix indicating the direction, capture and
2036 playback, respectively.
2038 Please note that the device mapping above may be varied via the module
2039 options of snd-pcm-oss module.
2042 Proc interfaces (/proc/asound)
2043 ==============================
2045 /proc/asound/card#/pcm#[cp]/oss
2046 -------------------------------
2047 String "erase" - erase all additional informations about OSS applications
2048 String "<app_name> <fragments> <fragment_size> [<options>]"
2050 <app_name> - name of application with (higher priority) or without path
2051 <fragments> - number of fragments or zero if auto
2052 <fragment_size> - size of fragment in bytes or zero if auto
2053 <options> - optional parameters
2054 - disable the application tries to open a pcm device for
2055 this channel but does not want to use it.
2056 (Cause a bug or mmap needs)
2057 It's good for Quake etc...
2058 - direct don't use plugins
2059 - block force block mode (rvplayer)
2060 - non-block force non-block mode
2061 - whole-frag write only whole fragments (optimization affecting
2063 - no-silence do not fill silence ahead to avoid clicks
2064 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2065 instead of filled blocks
2067 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2068 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2069 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2072 Early Buffer Allocation
2073 =======================
2075 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2076 sometimes it's too late to find such spaces when the driver module is
2077 actually loaded due to memory fragmentation. You can pre-allocate the
2078 PCM buffers by loading snd-page-alloc module and write commands to its
2079 proc file in prior, for example, in the early boot stage like
2080 /etc/init.d/*.local scripts.
2082 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2083 usage of page allocation. In writing, you can send the following
2084 commands to the snd-page-alloc driver:
2086 - add VENDOR DEVICE MASK SIZE BUFFERS
2088 VENDOR and DEVICE are PCI vendor and device IDs. They take
2089 integer numbers (0x prefix is needed for the hex).
2090 MASK is the PCI DMA mask. Pass 0 if not restricted.
2091 SIZE is the size of each buffer to allocate. You can pass
2092 k and m suffix for KB and MB. The max number is 16MB.
2093 BUFFERS is the number of buffers to allocate. It must be greater
2094 than 0. The max number is 4.
2098 This will erase the all pre-allocated buffers which are not in
2105 ALSA project homepage
2106 http://www.alsa-project.org
2108 ALSA Bug Tracking System
2109 https://bugtrack.alsa-project.org/bugs/
2112 mailto:alsa-devel@alsa-project.org