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.
471 Module snd-cs5535audio
472 ----------------------
474 Module for multifunction CS5535 companion PCI device
476 The power-management is supported.
481 Module for Echoaudio Darla20
483 This module supports multiple cards.
484 The driver requires the firmware loader support on kernel.
489 Module for Echoaudio Darla24
491 This module supports multiple cards.
492 The driver requires the firmware loader support on kernel.
497 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
500 port - Port # (PnP setup)
501 mpu_port - Port # for MPU-401 (PnP setup)
502 fm_port - Port # for FM OPL-3 (PnP setup)
503 irq - IRQ # (PnP setup)
504 mpu_irq - IRQ # for MPU-401 (PnP setup)
505 dma8 - DMA # (PnP setup)
507 This module supports multiple cards. This module is enabled only with
510 The power-management is supported.
515 Module for the dummy sound card. This "card" doesn't do any output
516 or input, but you may use this module for any application which
517 requires a sound card (like RealPlayer).
519 The power-management is supported.
524 Module for Echoaudio 3G cards (Gina3G/Layla3G)
526 This module supports multiple cards.
527 The driver requires the firmware loader support on kernel.
532 Module for EMU10K1/EMU10k2 based PCI sound cards.
533 * Sound Blaster Live!
534 * Sound Blaster PCI 512
535 * Emu APS (partially supported)
536 * Sound Blaster Audigy
538 extin - bitmap of available external inputs for FX8010 (see bellow)
539 extout - bitmap of available external outputs for FX8010 (see bellow)
540 seq_ports - allocated sequencer ports (4 by default)
541 max_synth_voices - limit of voices used for wavetable (64 by default)
542 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
543 given in MB unit. Default value is 128.
544 enable_ir - enable IR
546 This module supports multiple cards and autoprobe.
548 Input & Output configurations [extin/extout]
549 * Creative Card wo/Digital out [0x0003/0x1f03]
550 * Creative Card w/Digital out [0x0003/0x1f0f]
551 * Creative Card w/Digital CD in [0x000f/0x1f0f]
552 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
553 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
554 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
555 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
556 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
557 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
558 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
559 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
560 * Creative Card all ins and outs [0x3fff/0x7fff]
562 The power-management is supported.
567 Module for Creative Emu10k1X (SB Live Dell OEM version)
569 This module supports multiple cards.
574 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
575 * SoundBlaster PCI 64
576 * SoundBlaster PCI 128
578 joystick - Enable joystick (default off)
580 This module supports multiple cards and autoprobe.
582 The power-management is supported.
587 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
588 * SoundBlaster PCI 64
589 * SoundBlaster PCI 128
590 * SoundBlaster Vibra PCI
592 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
593 0 = disable (default), 1 = auto-detect
595 This module supports multiple cards and autoprobe.
597 The power-management is supported.
602 Module for sound cards based on ESS ES968 chip (PnP only).
604 port - port # for ES968 (SB8) chip (PnP setup)
605 irq - IRQ # for ES968 (SB8) chip (PnP setup)
606 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
608 This module supports multiple cards, PnP and autoprobe.
610 The power-management is supported.
615 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
617 port - port # for ES-1688 chip (0x220,0x240,0x260)
618 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
619 irq - IRQ # for ES-1688 chip (5,7,9,10)
620 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
621 dma8 - DMA # for ES-1688 chip (0,1,3)
623 This module supports multiple cards and autoprobe (without MPU-401 port).
628 Module for ESS AudioDrive ES-18xx sound cards.
630 port - port # for ES-18xx chip (0x220,0x240,0x260)
631 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
632 fm_port - port # for FM (optional, not used)
633 irq - IRQ # for ES-18xx chip (5,7,9,10)
634 dma1 - first DMA # for ES-18xx chip (0,1,3)
635 dma2 - first DMA # for ES-18xx chip (0,1,3)
636 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
638 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
639 port if native ISA PnP routines are not used).
640 When dma2 is equal with dma1, the driver works as half-duplex.
642 The power-management is supported.
647 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
649 This module supports multiple cards and autoprobe.
651 The power-management is supported.
656 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
658 total_bufsize - total buffer size in kB (1-4096kB)
659 pcm_substreams_p - playback channels (1-8, default=2)
660 pcm_substreams_c - capture channels (1-8, default=0)
661 clock - clock (0 = auto-detection)
662 use_pm - support the power-management (0 = off, 1 = on,
664 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
665 joystick - enable joystick (default off)
667 This module supports multiple cards and autoprobe.
669 The power-management is supported.
674 Module for ForteMedia FM801 based PCI sound cards.
676 tea575x_tuner - Enable TEA575x tuner
677 - 1 = MediaForte 256-PCS
678 - 2 = MediaForte 256-PCPR
679 - 3 = MediaForte 64-PCR
680 - High 16-bits are video (radio) device number + 1
681 - example: 0x10002 (MediaForte 256-PCPR, device 1)
683 This module supports multiple cards and autoprobe.
685 The power-management is supported.
690 Module for Echoaudio Gina20
692 This module supports multiple cards.
693 The driver requires the firmware loader support on kernel.
698 Module for Echoaudio Gina24
700 This module supports multiple cards.
701 The driver requires the firmware loader support on kernel.
703 Module snd-gusclassic
704 ---------------------
706 Module for Gravis UltraSound Classic sound card.
708 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
709 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
710 dma1 - DMA # for GF1 chip (1,3,5,6,7)
711 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
712 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
713 voices - GF1 voices limit (14-32)
714 pcm_voices - reserved PCM voices
716 This module supports multiple cards and autoprobe.
718 Module snd-gusextreme
719 ---------------------
721 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
723 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
724 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
725 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
726 irq - IRQ # for ES-1688 chip (5,7,9,10)
727 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
728 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
729 dma8 - DMA # for ES-1688 chip (0,1,3)
730 dma1 - DMA # for GF1 chip (1,3,5,6,7)
731 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
732 voices - GF1 voices limit (14-32)
733 pcm_voices - reserved PCM voices
735 This module supports multiple cards and autoprobe (without MPU-401 port).
740 Module for Gravis UltraSound MAX sound card.
742 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
743 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
744 dma1 - DMA # for GF1 chip (1,3,5,6,7)
745 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
746 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
747 voices - GF1 voices limit (14-32)
748 pcm_voices - reserved PCM voices
750 This module supports multiple cards and autoprobe.
755 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
756 ATI SB450, SB600, RS600,
760 model - force the model name
761 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
762 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
763 single_cmd - Use single immediate commands to communicate with
764 codecs (for debugging only)
765 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
767 This module supports one card and autoprobe.
769 Each codec may have a model table for different configurations.
770 If your machine isn't listed there, the default (usually minimal)
771 configuration is set up. You can pass "model=<name>" option to
772 specify a certain model in such a case. There are different
773 models depending on the codec chip.
775 Model name Description
776 ---------- -----------
778 3stack 3-jack in back and a headphone out
779 3stack-digout 3-jack in back, a HP out and a SPDIF out
780 5stack 5-jack in back, 2-jack in front
781 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
782 6stack 6-jack in back, 2-jack in front
783 6stack-digout 6-jack with a SPDIF out
785 z71v 3-jack (HP shared SPDIF)
786 asus 3-jack (ASUS Mobo)
788 asus-dig ASUS with SPDIF out
789 asus-dig2 ASUS with SPDIF out (using GPIO2)
791 fujitsu Fujitsu Laptops (Pi1536)
793 lg LG laptop (m1 express dual)
794 lg-lw LG LW20/LW25 laptop
796 clevo Clevo laptops (m520G, m665n)
797 test for testing/debugging purpose, almost all controls can be
798 adjusted. Appearing only when compiled with
800 auto auto-config reading BIOS (default)
804 hp-3013 HP machines (3013-variant)
805 fujitsu Fujitsu S7020
807 basic fixed pin assignment (old default model)
808 auto auto-config reading BIOS (default)
811 fujitsu Fujitsu Laptop
812 hp-bpc HP xw4400/6400/8400/9400 laptops
813 hp-bpc-d7000 HP BPC D7000
815 hippo Hippo (ATI) with jack detection, Sony UX-90s
816 hippo_1 Hippo (Benq) with jack detection
817 basic fixed pin assignment w/o SPDIF
818 auto auto-config reading BIOS (default)
821 3stack-dig 3-jack with SPDIF I/O
822 6stack-dig 6-jack digital with SPDIF I/O
824 macpro MacPro support
826 auto auto-config reading BIOS (default)
829 3stack-dig 3-jack with SPDIF I/O
830 6stack-dig 6-jack digital with SPDIF I/O
831 3stack-6ch 3-jack 6-channel
832 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
833 6stack-dig-demo 6-jack digital for Intel demo board
834 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
835 medion Medion Laptops
837 targa-2ch-dig Targs/MSI with 2-channel
838 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
839 auto auto-config reading BIOS (default)
843 3stack-dig 3-jack with SPDIF I/O
844 6stack-dig 6-jack with SPDIF I/O
845 3stack-660 3-jack (for ALC660)
846 uniwill-m31 Uniwill M31 laptop
847 toshiba Toshiba laptop support
848 asus Asus laptop support
849 asus-laptop ASUS F2/F3 laptops
850 auto auto-config reading BIOS (default)
854 3stack-dig 3-jack with SPDIF OUT
855 6stack-dig 6-jack with SPDIF OUT
856 3stack-660 3-jack (for ALC660VD)
857 lenovo Lenovo 3000 C200
858 auto auto-config reading BIOS (default)
861 minimal 3-jack in back
862 min_fp 3-jack in back, 2-jack in front
863 full 6-jack in back, 2-jack in front
864 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
865 allout 5-jack in back, 2-jack in front, SPDIF out
866 auto auto-config reading BIOS (default)
872 basic 3-jack (default)
874 thinkpad Lenovo Thinkpad T60/X60/Z60
881 basic default configuration
882 thinkpad Lenovo Thinkpad T61/X61
885 6stack 6-jack, separate surrounds (default)
886 3stack 3-stack, shared surrounds
887 laptop 2-channel only (FSC V2060, Samsung M50)
888 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
889 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
893 6stack-dig ditto with SPDIF
895 3stack-dig ditto with SPDIF
896 laptop 3-jack with hp-jack automute
897 laptop-dig ditto with SPDIF
898 auto auto-config reading BIOS (default)
902 test for testing/debugging purpose, almost all controls
903 can be adjusted. Appearing only when compiled with
907 laptop Basic Laptop config
908 laptop-hp Laptop config for some HP models (subdevice 30A5)
909 laptop-eapd Laptop config with EAPD support
910 test for testing/debugging purpose, almost all controls
911 can be adjusted. Appearing only when compiled with
920 5stack D945 5stack + SPDIF
921 macmini Intel Mac Mini
922 macbook Intel Mac Book
923 macbook-pro-v1 Intel Mac Book Pro 1st generation
924 macbook-pro Intel Mac Book Pro 2nd generation
925 imac-intel Intel iMac
926 imac-intel-20 Intel iMac (newer version)
929 ref Reference board, base config
930 m2-2 Some Gateway MX series laptops
931 m6 Some Gateway NX series laptops
932 pa6 Gateway NX860 series
934 STAC9227/9228/9229/927x
937 5stack D965 5stack + SPDIF
940 vaio Setup for VAIO FE550G/SZ110
941 vaio-ar Setup for VAIO AR
943 The model name "genric" is treated as a special case. When this
944 model is given, the driver uses the generic codec parser without
945 "codec-patch". It's sometimes good for testing and debugging.
947 If the default configuration doesn't work and one of the above
948 matches with your device, report it together with the PCI
949 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
950 ML (see the section "Links and Addresses").
952 Note 2: If you get click noises on output, try the module option
953 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
954 register value without FIFO size correction as the current
955 DMA pointer. position_fix=2 will make the driver to use
956 the position buffer instead of reading SD_LPIB register.
957 (Usually SD_LPLIB register is more accurate than the
960 NB: If you get many "azx_get_response timeout" messages at
961 loading, it's likely a problem of interrupts (e.g. ACPI irq
962 routing). Try to boot with options like "pci=noacpi". Also, you
963 can try "single_cmd=1" module option. This will switch the
964 communication method between HDA controller and codecs to the
965 single immediate commands instead of CORB/RIRB. Basically, the
966 single command mode is provided only for BIOS, and you won't get
967 unsolicited events, too. But, at least, this works independently
968 from the irq. Remember this is a last resort, and should be
969 avoided as much as possible...
971 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
972 On some hardwares, you may need to add a proper probe_mask option
973 to avoid the "azx_get_response timeout" problem above, instead.
974 This occurs when the access to non-existing or non-working codec slot
975 (likely a modem one) causes a stall of the communication via HD-audio
976 bus. You can see which codec slots are probed by enabling
977 CONFIG_SND_DEBUG_DETECT, or simply from the file name of the codec
978 proc files. Then limit the slots to probe by probe_mask option.
979 For example, probe_mask=1 means to probe only the first slot, and
980 probe_mask=4 means only the third slot.
982 The power-management is supported.
987 Module for RME Hammerfall DSP audio interface(s)
989 This module supports multiple cards.
991 Note: The firmware data can be automatically loaded via hotplug
992 when CONFIG_FW_LOADER is set. Otherwise, you need to load
993 the firmware via hdsploader utility included in alsa-tools
995 The firmware data is found in alsa-firmware package.
997 Note: snd-page-alloc module does the job which snd-hammerfall-mem
998 module did formerly. It will allocate the buffers in advance
999 when any HDSP cards are found. To make the buffer
1000 allocation sure, load snd-page-alloc module in the early
1001 stage of boot sequence. See "Early Buffer Allocation"
1007 Module for RME HDSP MADI board.
1009 precise_ptr - Enable precise pointer, or disable.
1010 line_outs_monitor - Send playback streams to analog outs by default.
1011 enable_monitor - Enable Analog Out on Channel 63/64 by default.
1013 See hdspm.txt for details.
1018 Module for Envy24 (ICE1712) based PCI sound cards.
1019 * MidiMan M Audio Delta 1010
1020 * MidiMan M Audio Delta 1010LT
1021 * MidiMan M Audio Delta DiO 2496
1022 * MidiMan M Audio Delta 66
1023 * MidiMan M Audio Delta 44
1024 * MidiMan M Audio Delta 410
1025 * MidiMan M Audio Audiophile 2496
1028 * TerraTec EWX 24/96
1029 * TerraTec DMX 6Fire
1031 * Hoontech SoundTrack DSP 24
1032 * Hoontech SoundTrack DSP 24 Value
1033 * Hoontech SoundTrack DSP 24 Media 7.1
1034 * Event Electronics, EZ8
1036 * Lionstracs, Mediastaton
1038 model - Use the given board model, one of the following:
1039 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1040 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1041 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1042 phase88, mediastation
1043 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1044 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1045 in msec resolution, default value is 500 (0.5 sec)
1047 This module supports multiple cards and autoprobe. Note: The consumer part
1048 is not used with all Envy24 based cards (for example in the MidiMan Delta
1051 Note: The supported board is detected by reading EEPROM or PCI
1052 SSID (if EEPROM isn't available). You can override the
1053 model by passing "model" module option in case that the
1054 driver isn't configured properly or you want to try another
1060 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1061 * MidiMan M Audio Revolution 5.1
1062 * MidiMan M Audio Revolution 7.1
1063 * MidiMan M Audio Audiophile 192
1065 * TerraTec Aureon 5.1 Sky
1066 * TerraTec Aureon 7.1 Space
1067 * TerraTec Aureon 7.1 Universe
1070 * AudioTrak Prodigy 7.1
1071 * AudioTrak Prodigy 7.1LT
1072 * AudioTrak Prodigy 192
1074 * Albatron K8X800 Pro II
1075 * Chaintech ZNF3-150
1076 * Chaintech ZNF3-250
1081 model - Use the given board model, one of the following:
1082 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1083 prodigy192, aureon51, aureon71, universe, ap192,
1084 k8x800, phase22, phase28, ms300, av710
1086 This module supports multiple cards and autoprobe.
1088 Note: The supported board is detected by reading EEPROM or PCI
1089 SSID (if EEPROM isn't available). You can override the
1090 model by passing "model" module option in case that the
1091 driver isn't configured properly or you want to try another
1097 Module for Echoaudio Indigo
1099 This module supports multiple cards.
1100 The driver requires the firmware loader support on kernel.
1105 Module for Echoaudio Indigo DJ
1107 This module supports multiple cards.
1108 The driver requires the firmware loader support on kernel.
1113 Module for Echoaudio Indigo IO
1115 This module supports multiple cards.
1116 The driver requires the firmware loader support on kernel.
1121 Module for AC'97 motherboards from Intel and compatibles.
1122 * Intel i810/810E, i815, i820, i830, i84x, MX440
1123 ICH5, ICH6, ICH7, ESB2
1124 * SiS 7012 (SiS 735)
1125 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1127 * AMD AMD768, AMD8111
1130 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1131 ac97_quirk - AC'97 workaround for strange hardware
1132 See "AC97 Quirk Option" section below.
1133 buggy_irq - Enable workaround for buggy interrupts on some
1134 motherboards (default yes on nForce chips,
1136 buggy_semaphore - Enable workaround for hardwares with buggy
1137 semaphores (e.g. on some ASUS laptops)
1139 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1140 from the controller chip
1141 (0 = off, 1 = on, -1 = default)
1143 This module supports one chip and autoprobe.
1145 Note: the latest driver supports auto-detection of chip clock.
1146 if you still encounter too fast playback, specify the clock
1147 explicitly via the module option "ac97_clock=41194".
1149 Joystick/MIDI ports are not supported by this driver. If your
1150 motherboard has these devices, use the ns558 or snd-mpu401
1151 modules, respectively.
1153 The power-management is supported.
1155 Module snd-intel8x0m
1156 --------------------
1158 Module for Intel ICH (i8x0) chipset MC97 modems.
1159 * Intel i810/810E, i815, i820, i830, i84x, MX440
1161 * SiS 7013 (SiS 735)
1162 * NVidia NForce, NForce2, NForce2s, NForce3
1166 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1168 This module supports one card and autoprobe.
1170 Note: The default index value of this module is -2, i.e. the first
1173 The power-management is supported.
1175 Module snd-interwave
1176 --------------------
1178 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1179 and other sound cards based on AMD InterWave (tm) chip.
1181 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1182 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1183 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1184 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1185 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1186 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1187 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1188 effect - 1 = InterWave effects enable (default 0);
1191 This module supports multiple cards, autoprobe and ISA PnP.
1193 Module snd-interwave-stb
1194 ------------------------
1196 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1197 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1198 circuit for extended control of bass, treble and master volume.
1200 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1201 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
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.
1216 Module for Korg 1212 IO PCI card
1218 This module supports multiple cards.
1223 Module for Echoaudio Layla20
1225 This module supports multiple cards.
1226 The driver requires the firmware loader support on kernel.
1231 Module for Echoaudio Layla24
1233 This module supports multiple cards.
1234 The driver requires the firmware loader support on kernel.
1239 Module for Allegro/Maestro3 chips
1241 external_amp - enable external amp (enabled by default)
1242 amp_gpio - GPIO pin number for external amp (0-15) or
1243 -1 for default pin (8 for allegro, 1 for
1246 This module supports autoprobe and multiple chips.
1248 Note: the binding of amplifier is dependent on hardware.
1249 If there is no sound even though all channels are unmuted, try to
1250 specify other gpio connection via amp_gpio option.
1251 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1254 The power-management is supported.
1259 Module for Echoaudio Mia
1261 This module supports multiple cards.
1262 The driver requires the firmware loader support on kernel.
1267 Module for Miro soundcards: miroSOUND PCM 1 pro,
1269 miroSOUND PCM 20 Radio.
1271 port - Port # (0x530,0x604,0xe80,0xf40)
1272 irq - IRQ # (5,7,9,10,11)
1273 dma1 - 1st dma # (0,1,3)
1274 dma2 - 2nd dma # (0,1)
1275 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1276 mpu_irq - MPU-401 irq # (5,7,9,10)
1277 fm_port - FM Port # (0x388)
1278 wss - enable WSS mode
1279 ide - enable onboard ide support
1284 Module for Digigram miXart8 sound cards.
1286 This module supports multiple cards.
1287 Note: One miXart8 board will be represented as 4 alsa cards.
1288 See MIXART.txt for details.
1290 When the driver is compiled as a module and the hotplug firmware
1291 is supported, the firmware data is loaded via hotplug automatically.
1292 Install the necessary firmware files in alsa-firmware package.
1293 When no hotplug fw loader is available, you need to load the
1294 firmware via mixartloader utility in alsa-tools package.
1299 Module for Echoaudio Mona
1301 This module supports multiple cards.
1302 The driver requires the firmware loader support on kernel.
1307 Module for MPU-401 UART devices.
1309 port - port number or -1 (disable)
1310 irq - IRQ number or -1 (disable)
1311 pnp - PnP detection - 0 = disable, 1 = enable (default)
1312 uart_enter - Issue UART_ENTER command at open - bool, default = on
1314 This module supports multiple devices and PnP.
1319 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1322 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1323 irq - IRQ # for MTPAV (7,5, default=7)
1324 hwports - number of supported hardware ports, default=8.
1326 Module supports only 1 card. This module has no enable option.
1331 Module for Ego Systems (ESI) Miditerminal 4140
1333 This module supports multiple devices.
1334 Requires parport (CONFIG_PARPORT).
1339 Module for NeoMagic NM256AV/ZX chips
1341 playback_bufsize - max playback frame size in kB (4-128kB)
1342 capture_bufsize - max capture frame size in kB (4-128kB)
1343 force_ac97 - 0 or 1 (disabled by default)
1344 buffer_top - specify buffer top address
1345 use_cache - 0 or 1 (disabled by default)
1346 vaio_hack - alias buffer_top=0x25a800
1347 reset_workaround - enable AC97 RESET workaround for some laptops
1348 reset_workaround2 - enable extended AC97 RESET workaround for some
1351 This module supports one chip and autoprobe.
1353 The power-management is supported.
1355 Note: on some notebooks the buffer address cannot be detected
1356 automatically, or causes hang-up during initialization.
1357 In such a case, specify the buffer top address explicitly via
1358 the buffer_top option.
1360 Sony F250: buffer_top=0x25a800
1361 Sony F270: buffer_top=0x272800
1362 The driver supports only ac97 codec. It's possible to force
1363 to initialize/use ac97 although it's not detected. In such a
1364 case, use force_ac97=1 option - but *NO* guarantee whether it
1367 Note: The NM256 chip can be linked internally with non-AC97
1368 codecs. This driver supports only the AC97 codec, and won't work
1369 with machines with other (most likely CS423x or OPL3SAx) chips,
1370 even though the device is detected in lspci. In such a case, try
1371 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1372 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1373 and proper hardware parameters in the case without ISA PnP.
1375 Note: some laptops need a workaround for AC97 RESET. For the
1376 known hardware like Dell Latitude LS and Sony PCG-F305, this
1377 workaround is enabled automatically. For other laptops with a
1378 hard freeze, you can try reset_workaround=1 option.
1380 Note: Dell Latitude CSx laptops have another problem regarding
1381 AC97 RESET. On these laptops, reset_workaround2 option is
1382 turned on as default. This option is worth to try if the
1383 previous reset_workaround option doesn't help.
1385 Note: This driver is really crappy. It's a porting from the
1386 OSS driver, which is a result of black-magic reverse engineering.
1387 The detection of codec will fail if the driver is loaded *after*
1388 X-server as described above. You might be able to force to load
1389 the module, but it may result in hang-up. Hence, make sure that
1390 you load this module *before* X if you encounter this kind of
1396 Module for Yamaha OPL3-SA2/SA3 sound cards.
1398 port - control port # for OPL3-SA chip (0x370)
1399 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1400 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1401 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1402 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1403 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1404 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1405 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1406 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1408 This module supports multiple cards and ISA PnP. It does not support
1409 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1411 The power-management is supported.
1413 Module snd-opti92x-ad1848
1414 -------------------------
1416 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1417 Module works with OAK Mozart cards as well.
1419 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1420 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1421 fm_port - port # for OPL3 device (0x388)
1422 irq - IRQ # for WSS chip (5,7,9,10,11)
1423 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1424 dma1 - first DMA # for WSS chip (0,1,3)
1426 This module supports only one card, autoprobe and PnP.
1428 Module snd-opti92x-cs4231
1429 -------------------------
1431 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1433 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1434 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1435 fm_port - port # for OPL3 device (0x388)
1436 irq - IRQ # for WSS chip (5,7,9,10,11)
1437 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1438 dma1 - first DMA # for WSS chip (0,1,3)
1439 dma2 - second DMA # for WSS chip (0,1,3)
1441 This module supports only one card, autoprobe and PnP.
1446 Module for sound cards based on OPTi 82c93x chips.
1448 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1449 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1450 fm_port - port # for OPL3 device (0x388)
1451 irq - IRQ # for WSS chip (5,7,9,10,11)
1452 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1453 dma1 - first DMA # for WSS chip (0,1,3)
1454 dma2 - second DMA # for WSS chip (0,1,3)
1456 This module supports only one card, autoprobe and PnP.
1461 Module for Digigram PCXHR boards
1463 This module supports multiple cards.
1465 Module snd-portman2x4
1466 ---------------------
1468 Module for Midiman Portman 2x4 parallel port MIDI interface
1470 This module supports multiple cards.
1472 Module snd-powermac (on ppc only)
1473 ---------------------------------
1475 Module for PowerMac, iMac and iBook on-board soundchips
1477 enable_beep - enable beep using PCM (enabled as default)
1479 Module supports autoprobe a chip.
1481 Note: the driver may have problems regarding endianess.
1483 The power-management is supported.
1485 Module snd-pxa2xx-ac97 (on arm only)
1486 ------------------------------------
1488 Module for AC97 driver for the Intel PXA2xx chip
1490 For ARM architecture only.
1492 The power-management is supported.
1497 Module for Conexant Riptide chip
1499 joystick_port - Joystick port # (default: 0x200)
1500 mpu_port - MPU401 port # (default: 0x330)
1501 opl3_port - OPL3 port # (default: 0x388)
1503 This module supports multiple cards.
1504 The driver requires the firmware loader support on kernel.
1505 You need to install the firmware file "riptide.hex" to the standard
1506 firmware path (e.g. /lib/firmware).
1511 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1512 Prodif96 and Prodif Gold) sound cards.
1514 This module supports multiple cards.
1519 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1521 This module supports multiple cards.
1526 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1528 precise_ptr - Enable precise pointer (doesn't work reliably).
1531 This module supports multiple cards.
1533 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1534 module did formerly. It will allocate the buffers in advance
1535 when any RME9652 cards are found. To make the buffer
1536 allocation sure, load snd-page-alloc module in the early
1537 stage of boot sequence. See "Early Buffer Allocation"
1540 Module snd-sa11xx-uda1341 (on arm only)
1541 ---------------------------------------
1543 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1545 Module supports only one card.
1546 Module has no enable and index options.
1548 The power-management is supported.
1553 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1557 port - port # for SB DSP chip (0x220,0x240,0x260)
1558 irq - IRQ # for SB DSP chip (5,7,9,10)
1559 dma8 - DMA # for SB DSP chip (1,3)
1561 This module supports multiple cards and autoprobe.
1563 The power-management is supported.
1565 Module snd-sb16 and snd-sbawe
1566 -----------------------------
1568 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1569 SoundBlaster AWE 32 (PnP),
1570 SoundBlaster AWE 64 PnP
1572 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1573 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1574 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1575 (snd-sbawe module only)
1576 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1577 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1578 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1579 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1580 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1581 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1583 This module supports multiple cards, autoprobe and ISA PnP.
1585 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1586 disable 16bit DMA with dma16 = -1 module parameter.
1587 Also, all Sound Blaster 16 type cards can operate in 16-bit
1588 half duplex mode through 8-bit DMA channel by disabling their
1591 The power-management is supported.
1596 Module for Aztech Sound Galaxy sound card.
1598 sbport - Port # for SB16 interface (0x220,0x240)
1599 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1600 irq - IRQ # (7,9,10,11)
1603 This module supports multiple cards.
1605 The power-management is supported.
1610 Module for ENSONIQ SoundScape PnP cards.
1612 port - Port # (PnP setup)
1613 irq - IRQ # (PnP setup)
1614 mpu_irq - MPU-401 IRQ # (PnP setup)
1615 dma - DMA # (PnP setup)
1617 This module supports multiple cards. ISA PnP must be enabled.
1618 You need sscape_ctl tool in alsa-tools package for loading
1621 Module snd-sun-amd7930 (on sparc only)
1622 --------------------------------------
1624 Module for AMD7930 sound chips found on Sparcs.
1626 This module supports multiple cards.
1628 Module snd-sun-cs4231 (on sparc only)
1629 -------------------------------------
1631 Module for CS4231 sound chips found on Sparcs.
1633 This module supports multiple cards.
1635 Module snd-sun-dbri (on sparc only)
1636 -----------------------------------
1638 Module for DBRI sound chips found on Sparcs.
1640 This module supports multiple cards.
1642 Module snd-wavefront
1643 --------------------
1645 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1647 cs4232_pcm_port - Port # for CS4232 PCM interface.
1648 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1649 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1650 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1651 use_cs4232_midi - Use CS4232 MPU-401 interface
1652 (inaccessibly located inside your computer)
1653 ics2115_port - Port # for ICS2115
1654 ics2115_irq - IRQ # for ICS2115
1655 fm_port - FM OPL-3 Port #
1656 dma1 - DMA1 # for CS4232 PCM interface.
1657 dma2 - DMA2 # for CS4232 PCM interface.
1658 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1660 This module supports multiple cards and ISA PnP.
1662 Module snd-sonicvibes
1663 ---------------------
1665 Module for S3 SonicVibes PCI sound cards.
1666 * PINE Schubert 32 PCI
1668 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1669 - SoundCard must have onboard SRAM for this.
1670 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1672 This module supports multiple cards and autoprobe.
1674 Module snd-serial-u16550
1675 ------------------------
1677 Module for UART16550A serial MIDI ports.
1679 port - port # for UART16550A chip
1680 irq - IRQ # for UART16550A chip, -1 = poll mode
1681 speed - speed in bauds (9600,19200,38400,57600,115200)
1683 base - base for divisor in bauds (57600,115200,230400,460800)
1685 outs - number of MIDI ports in a serial port (1-4)
1687 adaptor - Type of adaptor.
1688 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1689 3 = MS-124W M/B, 4 = Generic
1691 This module supports multiple cards. This module does not support autoprobe
1692 thus the main port must be specified!!! Other options are optional.
1697 Module for Trident 4DWave DX/NX sound cards.
1698 * Best Union Miss Melody 4DWave PCI
1700 * Warpspeed ONSpeed 4DWave PCI
1703 * CHIC True Sound 4Dwave
1704 * Shark Predator4D-PCI
1705 * Jaton SonicWave 4D
1707 pcm_channels - max channels (voices) reserved for PCM
1708 wavetable_size - max wavetable size in kB (4-?kb)
1710 This module supports multiple cards and autoprobe.
1712 The power-management is supported.
1714 Module snd-usb-audio
1715 --------------------
1717 Module for USB audio and USB MIDI devices.
1719 vid - Vendor ID for the device (optional)
1720 pid - Product ID for the device (optional)
1721 device_setup - Device specific magic number (optional)
1722 - Influence depends on the device
1725 This module supports multiple devices, autoprobe and hotplugging.
1727 Module snd-usb-caiaq
1728 --------------------
1730 Module for caiaq UB audio interfaces,
1731 * Native Instruments RigKontrol2
1732 * Native Instruments Kore Controller
1733 * Native Instruments Audio Kontrol 1
1734 * Native Instruments Audio 8 DJ
1736 This module supports multiple devices, autoprobe and hotplugging.
1738 Module snd-usb-usx2y
1739 --------------------
1741 Module for Tascam USB US-122, US-224 and US-428 devices.
1743 This module supports multiple devices, autoprobe and hotplugging.
1745 Note: you need to load the firmware via usx2yloader utility included
1746 in alsa-tools and alsa-firmware packages.
1751 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1752 8233A, 8233C, 8235, 8237 (south) bridge.
1754 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1756 joystick - Enable joystick (default off) [VIA686A/686B only]
1757 ac97_clock - AC'97 codec clock base (default 48000Hz)
1758 dxs_support - support DXS channels,
1759 0 = auto (default), 1 = enable, 2 = disable,
1760 3 = 48k only, 4 = no VRA, 5 = enable any sample
1761 rate and different sample rates on different
1763 [VIA8233/C, 8235, 8237 only]
1764 ac97_quirk - AC'97 workaround for strange hardware
1765 See "AC97 Quirk Option" section below.
1767 This module supports one chip and autoprobe.
1769 Note: on some SMP motherboards like MSI 694D the interrupts might
1770 not be generated properly. In such a case, please try to
1771 set the SMP (or MPS) version on BIOS to 1.1 instead of
1772 default value 1.4. Then the interrupt number will be
1773 assigned under 15. You might also upgrade your BIOS.
1775 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1776 channels as the first PCM. On these channels, up to 4
1777 streams can be played at the same time, and the controller
1778 can perform sample rate conversion with separate rates for
1780 As default (dxs_support = 0), 48k fixed rate is chosen
1781 except for the known devices since the output is often
1782 noisy except for 48k on some mother boards due to the
1784 Please try once dxs_support=5 and if it works on other
1785 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1786 know the PCI subsystem vendor/device id's (output of
1788 If dxs_support=5 does not work, try dxs_support=4; if it
1789 doesn't work too, try dxs_support=1. (dxs_support=1 is
1790 usually for old motherboards. The correct implemented
1791 board should work with 4 or 5.) If it still doesn't
1792 work and the default setting is ok, dxs_support=3 is the
1793 right choice. If the default setting doesn't work at all,
1794 try dxs_support=2 to disable the DXS channels.
1795 In any cases, please let us know the result and the
1796 subsystem vendor/device ids. See "Links and Addresses"
1799 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1800 additionally. The mpu_port option is for VIA686 chips only.
1802 The power-management is supported.
1804 Module snd-via82xx-modem
1805 ------------------------
1807 Module for VIA82xx AC97 modem
1809 ac97_clock - AC'97 codec clock base (default 48000Hz)
1811 This module supports one card and autoprobe.
1813 Note: The default index value of this module is -2, i.e. the first
1816 The power-management is supported.
1821 Module for virtual rawmidi devices.
1822 This module creates virtual rawmidi devices which communicate
1823 to the corresponding ALSA sequencer ports.
1825 midi_devs - MIDI devices # (1-4, default=4)
1827 This module supports multiple cards.
1832 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1834 mic - Enable Microphone on V222 Mic (NYI)
1835 ibl - Capture IBL size. (default = 0, minimum size)
1837 This module supports multiple cards.
1839 When the driver is compiled as a module and the hotplug firmware
1840 is supported, the firmware data is loaded via hotplug automatically.
1841 Install the necessary firmware files in alsa-firmware package.
1842 When no hotplug fw loader is available, you need to load the
1843 firmware via vxloader utility in alsa-tools package. To invoke
1844 vxloader automatically, add the following to /etc/modprobe.conf
1846 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1848 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1849 /etc/modules.conf, instead.)
1850 IBL size defines the interrupts period for PCM. The smaller size
1851 gives smaller latency but leads to more CPU consumption, too.
1852 The size is usually aligned to 126. As default (=0), the smallest
1853 size is chosen. The possible IBL values can be found in
1854 /proc/asound/cardX/vx-status proc file.
1856 The power-management is supported.
1861 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1863 ibl - Capture IBL size. (default = 0, minimum size)
1865 This module supports multiple cards. The module is compiled only when
1866 PCMCIA is supported on kernel.
1868 With the older 2.6.x kernel, to activate the driver via the card
1869 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1870 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1871 longer require a config file.
1873 When the driver is compiled as a module and the hotplug firmware
1874 is supported, the firmware data is loaded via hotplug automatically.
1875 Install the necessary firmware files in alsa-firmware package.
1876 When no hotplug fw loader is available, you need to load the
1877 firmware via vxloader utility in alsa-tools package.
1879 About capture IBL, see the description of snd-vx222 module.
1881 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1884 The power-management is supported.
1889 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1891 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1892 1 (auto-detect for YMF744/754 only)
1893 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1894 1 (auto-detect for YMF744/754 only)
1895 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1897 rear_switch - enable shared rear/line-in switch (bool)
1899 This module supports autoprobe and multiple chips.
1901 The power-management is supported.
1903 Module snd-pdaudiocf
1904 --------------------
1906 Module for Sound Core PDAudioCF sound card.
1908 The power-management is supported.
1914 The ac97_quirk option is used to enable/override the workaround for
1915 specific devices on drivers for on-board AC'97 controllers like
1916 snd-intel8x0. Some hardware have swapped output pins between Master
1917 and Headphone, or Surround (thanks to confusion of AC'97
1918 specifications from version to version :-)
1920 The driver provides the auto-detection of known problematic devices,
1921 but some might be unknown or wrongly detected. In such a case, pass
1922 the proper value with this option.
1924 The following strings are accepted:
1925 - default Don't override the default setting
1926 - none Disable the quirk
1927 - hp_only Bind Master and Headphone controls as a single control
1928 - swap_hp Swap headphone and master controls
1929 - swap_surround Swap master and surround controls
1930 - ad_sharing For AD1985, turn on OMS bit and use headphone
1931 - alc_jack For ALC65x, turn on the jack sense mode
1932 - inv_eapd Inverted EAPD implementation
1933 - mute_led Bind EAPD bit for turning on/off mute LED
1935 For backward compatibility, the corresponding integer value -1, 0,
1936 ... are accepted, too.
1938 For example, if "Master" volume control has no effect on your device
1939 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1942 Configuring Non-ISAPNP Cards
1943 ============================
1945 When the kernel is configured with ISA-PnP support, the modules
1946 supporting the isapnp cards will have module options "isapnp".
1947 If this option is set, *only* the ISA-PnP devices will be probed.
1948 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1949 together with the proper i/o and irq configuration.
1951 When the kernel is configured without ISA-PnP support, isapnp option
1952 will be not built in.
1955 Module Autoloading Support
1956 ==========================
1958 The ALSA drivers can be loaded automatically on demand by defining
1959 module aliases. The string 'snd-card-%1' is requested for ALSA native
1960 devices where %i is sound card number from zero to seven.
1962 To auto-load an ALSA driver for OSS services, define the string
1963 'sound-slot-%i' where %i means the slot number for OSS, which
1964 corresponds to the card index of ALSA. Usually, define this
1965 as the same card module.
1967 An example configuration for a single emu10k1 card is like below:
1968 ----- /etc/modprobe.conf
1969 alias snd-card-0 snd-emu10k1
1970 alias sound-slot-0 snd-emu10k1
1971 ----- /etc/modprobe.conf
1973 The available number of auto-loaded sound cards depends on the module
1974 option "cards_limit" of snd module. As default it's set to 1.
1975 To enable the auto-loading of multiple cards, specify the number of
1976 sound cards in that option.
1978 When multiple cards are available, it'd better to specify the index
1979 number for each card via module option, too, so that the order of
1980 cards is kept consistent.
1982 An example configuration for two sound cards is like below:
1984 ----- /etc/modprobe.conf
1986 options snd cards_limit=2
1987 alias snd-card-0 snd-interwave
1988 alias snd-card-1 snd-ens1371
1989 options snd-interwave index=0
1990 options snd-ens1371 index=1
1992 alias sound-slot-0 snd-interwave
1993 alias sound-slot-1 snd-ens1371
1994 ----- /etc/modprobe.conf
1996 In this example, the interwave card is always loaded as the first card
1997 (index 0) and ens1371 as the second (index 1).
2000 ALSA PCM devices to OSS devices mapping
2001 =======================================
2003 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2004 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2005 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2006 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2007 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2008 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2009 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2010 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2011 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2013 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2014 sound card number and second means device number. The ALSA devices
2015 have either 'c' or 'p' suffix indicating the direction, capture and
2016 playback, respectively.
2018 Please note that the device mapping above may be varied via the module
2019 options of snd-pcm-oss module.
2022 Proc interfaces (/proc/asound)
2023 ==============================
2025 /proc/asound/card#/pcm#[cp]/oss
2026 -------------------------------
2027 String "erase" - erase all additional informations about OSS applications
2028 String "<app_name> <fragments> <fragment_size> [<options>]"
2030 <app_name> - name of application with (higher priority) or without path
2031 <fragments> - number of fragments or zero if auto
2032 <fragment_size> - size of fragment in bytes or zero if auto
2033 <options> - optional parameters
2034 - disable the application tries to open a pcm device for
2035 this channel but does not want to use it.
2036 (Cause a bug or mmap needs)
2037 It's good for Quake etc...
2038 - direct don't use plugins
2039 - block force block mode (rvplayer)
2040 - non-block force non-block mode
2041 - whole-frag write only whole fragments (optimization affecting
2043 - no-silence do not fill silence ahead to avoid clicks
2044 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2045 instead of filled blocks
2047 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2048 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2049 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2052 Early Buffer Allocation
2053 =======================
2055 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2056 sometimes it's too late to find such spaces when the driver module is
2057 actually loaded due to memory fragmentation. You can pre-allocate the
2058 PCM buffers by loading snd-page-alloc module and write commands to its
2059 proc file in prior, for example, in the early boot stage like
2060 /etc/init.d/*.local scripts.
2062 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2063 usage of page allocation. In writing, you can send the following
2064 commands to the snd-page-alloc driver:
2066 - add VENDOR DEVICE MASK SIZE BUFFERS
2068 VENDOR and DEVICE are PCI vendor and device IDs. They take
2069 integer numbers (0x prefix is needed for the hex).
2070 MASK is the PCI DMA mask. Pass 0 if not restricted.
2071 SIZE is the size of each buffer to allocate. You can pass
2072 k and m suffix for KB and MB. The max number is 16MB.
2073 BUFFERS is the number of buffers to allocate. It must be greater
2074 than 0. The max number is 4.
2078 This will erase the all pre-allocated buffers which are not in
2085 ALSA project homepage
2086 http://www.alsa-project.org
2088 ALSA Bug Tracking System
2089 https://bugtrack.alsa-project.org/bugs/
2092 mailto:alsa-devel@alsa-project.org