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.
61 - permission mask for dynamic sound device filesystem
62 - This is available only when DEVFS is enabled
64 - E.g.: device_mode=0660
70 The PCM OSS emulation module.
71 This module takes options which change the mapping of devices.
73 dsp_map - PCM device number maps assigned to the 1st OSS device.
75 adsp_map - PCM device number maps assigned to the 2st OSS device.
78 - Don't block opening busy PCM devices. Default: 1
80 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
81 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
82 to PCM #0 of the card #0.
83 For changing the second or later card, specify the option with
84 commas, such like "dsp_map=0,1".
86 nonblock_open option is used to change the behavior of the PCM
87 regarding opening the device. When this option is non-zero,
88 opening a busy OSS PCM device won't be blocked but return
89 immediately with EAGAIN (just like O_NONBLOCK flag).
94 This module takes options which change the mapping of devices.
95 similar to those of the snd-pcm-oss module.
97 midi_map - MIDI device number maps assigned to the 1st OSS device.
99 amidi_map - MIDI device number maps assigned to the 2st OSS device.
102 Common parameters for top sound card modules
103 --------------------------------------------
105 Each of top level sound card module takes the following options.
107 index - index (slot #) of sound card
108 - Values: 0 through 31 or negative
109 - If nonnegative, assign that index number
110 - if negative, interpret as a bitmask of permissible
111 indices; the first free permitted index is assigned
113 id - card ID (identifier or name)
114 - Can be up to 15 characters long
115 - Default: the card type
116 - A directory by this name is created under /proc/asound/
117 containing information about the card
118 - This ID can be used instead of the index number in
121 - Default: enabled, for PCI and ISA PnP cards
126 Module for AdLib FM cards.
128 port - port # for OPL chip
130 This module supports multiple cards. It does not support autoprobe, so
131 the port must be specified. For actual AdLib FM cards it will be 0x388.
132 Note that this card does not have PCM support and no mixer; only FM
135 Make sure you have "sbiload" from the alsa-tools package available and,
136 after loading the module, find out the assigned ALSA sequencer port
137 number through "sbiload -l". Example output:
139 Port Client name Port name
140 64:0 OPL2 FM synth OPL2 FM Port
142 Load the std.sb and drums.sb patches also supplied by sbiload:
144 sbiload -p 64:0 std.sb drums.sb
146 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
147 instead. To have the card produce sound, use aplaymidi from alsa-utils:
149 aplaymidi -p 64:0 foo.mid
154 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
156 port - port # for AD1816A chip (PnP setup)
157 mpu_port - port # for MPU-401 UART (PnP setup)
158 fm_port - port # for OPL3 (PnP setup)
159 irq - IRQ # for AD1816A chip (PnP setup)
160 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
161 dma1 - first DMA # for AD1816A chip (PnP setup)
162 dma2 - second DMA # for AD1816A chip (PnP setup)
163 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
165 This module supports multiple cards, autoprobe and PnP.
170 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
172 port - port # for AD1848 chip
173 irq - IRQ # for AD1848 chip
174 dma1 - DMA # for AD1848 chip (0,1,3)
176 This module supports multiple cards. It does not support autoprobe
177 thus main port must be specified!!! Other ports are optional.
179 The power-management is supported.
184 Module for Analog Devices AD1889 chips.
186 ac97_quirk - AC'97 workaround for strange hardware
187 See the description of intel8x0 module for details.
189 This module supports multiple cards.
194 Module for ALi M5451 PCI chip.
196 pcm_channels - Number of hardware channels assigned for PCM
197 spdif - Support SPDIF I/O
200 This module supports one chip and autoprobe.
202 The power-management is supported.
207 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
209 port - port # for ALS100 (SB16) chip (PnP setup)
210 irq - IRQ # for ALS100 (SB16) chip (PnP setup)
211 dma8 - 8-bit DMA # for ALS100 (SB16) chip (PnP setup)
212 dma16 - 16-bit DMA # for ALS100 (SB16) chip (PnP setup)
213 mpu_port - port # for MPU-401 UART (PnP setup)
214 mpu_irq - IRQ # for MPU-401 (PnP setup)
215 fm_port - port # for OPL3 FM (PnP setup)
217 This module supports multiple cards, autoprobe and PnP.
219 The power-management is supported.
224 Module for Avance Logic ALS300 and ALS300+
226 This module supports multiple cards.
228 The power-management is supported.
233 Module for sound cards based on Avance Logic ALS4000 PCI chip.
235 joystick_port - port # for legacy joystick support.
236 0 = disabled (default), 1 = auto-detect
238 This module supports multiple cards, autoprobe and PnP.
240 The power-management is supported.
245 Module for ATI IXP 150/200/250/400 AC97 controllers.
247 ac97_clock - AC'97 clock (default = 48000)
248 ac97_quirk - AC'97 workaround for strange hardware
249 See "AC97 Quirk Option" section below.
250 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
252 This module supports one card and autoprobe.
254 ATI IXP has two different methods to control SPDIF output. One is
255 over AC-link and another is over the "direct" SPDIF output. The
256 implementation depends on the motherboard, and you'll need to
257 choose the correct one via spdif_aclink module option.
259 The power-management is supported.
261 Module snd-atiixp-modem
262 -----------------------
264 Module for ATI IXP 150/200/250 AC97 modem controllers.
266 This module supports one card and autoprobe.
268 Note: The default index value of this module is -2, i.e. the first
271 The power-management is supported.
273 Module snd-au8810, snd-au8820, snd-au8830
274 -----------------------------------------
276 Module for Aureal Vortex, Vortex2 and Advantage device.
278 pcifix - Control PCI workarounds
279 0 = Disable all workarounds
280 1 = Force the PCI latency of the Aureal card to 0xff
281 2 = Force the Extend PCI#2 Internal Master for Efficient
282 Handling of Dummy Requests on the VIA KT133 AGP Bridge
283 3 = Force both settings
284 255 = Autodetect what is required (default)
286 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
287 EQ, mpu401, gameport. A3D and wavetable support are still in development.
288 Development and reverse engineering work is being coordinated at
289 http://savannah.nongnu.org/projects/openvortex/
290 SPDIF output has a copy of the AC97 codec output, unless you use the
291 "spdif" pcm device, which allows raw data passthru.
292 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
295 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
296 control correctly. If you have problems regarding this, try
297 another ALSA compliant mixer (alsamixer works).
302 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
304 port - port # for AZT2320 chip (PnP setup)
305 wss_port - port # for WSS (PnP setup)
306 mpu_port - port # for MPU-401 UART (PnP setup)
307 fm_port - FM port # for AZT2320 chip (PnP setup)
308 irq - IRQ # for AZT2320 (WSS) chip (PnP setup)
309 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
310 dma1 - 1st DMA # for AZT2320 (WSS) chip (PnP setup)
311 dma2 - 2nd DMA # for AZT2320 (WSS) chip (PnP setup)
313 This module supports multiple cards, PnP and autoprobe.
315 The power-management is supported.
320 Module for sound cards based on Aztech AZF3328 PCI chip.
322 joystick - Enable joystick (default off)
324 This module supports multiple cards.
329 Module for video cards based on Bt87x chips.
331 digital_rate - Override the default digital rate (Hz)
332 load_all - Load the driver even if the card model isn't known
334 This module supports multiple cards.
336 Note: The default index value of this module is -2, i.e. the first
342 Module for Creative Audigy LS and SB Live 24bit
344 This module supports multiple cards.
350 Module for sound cards based on C-Media CMI8330 ISA chips.
352 wssport - port # for CMI8330 chip (WSS)
353 wssirq - IRQ # for CMI8330 chip (WSS)
354 wssdma - first DMA # for CMI8330 chip (WSS)
355 sbport - port # for CMI8330 chip (SB16)
356 sbirq - IRQ # for CMI8330 chip (SB16)
357 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
358 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
360 This module supports multiple cards and autoprobe.
362 The power-management is supported.
367 Module for C-Media CMI8338 and 8738 PCI sound cards.
369 mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
370 1 = integrated PCI port,
371 0 = disable (default)
372 fm_port - 0x388 (default), 0 = disable (default)
373 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
375 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
377 This module supports autoprobe and multiple cards.
379 The power-management is supported.
384 Module for sound cards based on CS4231 ISA chips.
386 port - port # for CS4231 chip
387 mpu_port - port # for MPU-401 UART (optional), -1 = disable
388 irq - IRQ # for CS4231 chip
389 mpu_irq - IRQ # for MPU-401 UART
390 dma1 - first DMA # for CS4231 chip
391 dma2 - second DMA # for CS4231 chip
393 This module supports multiple cards. This module does not support autoprobe
394 thus main port must be specified!!! Other ports are optional.
396 The power-management is supported.
401 Module for sound cards based on CS4232/CS4232A ISA chips.
403 port - port # for CS4232 chip (PnP setup - 0x534)
404 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
405 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
406 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
407 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
408 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
409 dma1 - first DMA # for CS4232 chip (0,1,3)
410 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
411 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
413 This module supports multiple cards. This module does not support autoprobe
414 thus main port must be specified!!! Other ports are optional.
416 The power-management is supported.
421 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
422 CS4238B/CS4239 ISA chips.
424 port - port # for CS4236 chip (PnP setup - 0x534)
425 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
426 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
427 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
428 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
429 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
430 dma1 - first DMA # for CS4236 chip (0,1,3)
431 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
432 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
434 This module supports multiple cards. This module does not support autoprobe
435 (if ISA PnP is not used) thus main port and control port must be
436 specified!!! Other ports are optional.
438 The power-management is supported.
443 Module for Cirrus Logic CS4281 soundchip.
445 dual_codec - Secondary codec ID (0 = disable, default)
447 This module supports multiple cards.
449 The power-management is supported.
454 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
455 CS4624/CS4630/CS4280 PCI chips.
457 external_amp - Force to enable external amplifier.
458 thinkpad - Force to enable Thinkpad's CLKRUN control.
459 mmap_valid - Support OSS mmap mode (default = 0).
461 This module supports multiple cards and autoprobe.
462 Usually external amp and CLKRUN controls are detected automatically
463 from PCI sub vendor/device ids. If they don't work, give the options
466 The power-management is supported.
468 Module snd-cs5535audio
469 ----------------------
471 Module for multifunction CS5535 companion PCI device
473 The power-management is supported.
478 Module for Echoaudio Darla20
480 This module supports multiple cards.
481 The driver requires the firmware loader support on kernel.
486 Module for Echoaudio Darla24
488 This module supports multiple cards.
489 The driver requires the firmware loader support on kernel.
494 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
497 port - Port # (PnP setup)
498 mpu_port - Port # for MPU-401 (PnP setup)
499 fm_port - Port # for FM OPL-3 (PnP setup)
500 irq - IRQ # (PnP setup)
501 mpu_irq - IRQ # for MPU-401 (PnP setup)
502 dma8 - DMA # (PnP setup)
504 This module supports multiple cards. This module is enabled only with
507 The power-management is supported.
512 Module for the dummy sound card. This "card" doesn't do any output
513 or input, but you may use this module for any application which
514 requires a sound card (like RealPlayer).
516 The power-management is supported.
521 Module for Echoaudio 3G cards (Gina3G/Layla3G)
523 This module supports multiple cards.
524 The driver requires the firmware loader support on kernel.
529 Module for EMU10K1/EMU10k2 based PCI sound cards.
530 * Sound Blaster Live!
531 * Sound Blaster PCI 512
532 * Emu APS (partially supported)
533 * Sound Blaster Audigy
535 extin - bitmap of available external inputs for FX8010 (see bellow)
536 extout - bitmap of available external outputs for FX8010 (see bellow)
537 seq_ports - allocated sequencer ports (4 by default)
538 max_synth_voices - limit of voices used for wavetable (64 by default)
539 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
540 given in MB unit. Default value is 128.
541 enable_ir - enable IR
543 This module supports multiple cards and autoprobe.
545 Input & Output configurations [extin/extout]
546 * Creative Card wo/Digital out [0x0003/0x1f03]
547 * Creative Card w/Digital out [0x0003/0x1f0f]
548 * Creative Card w/Digital CD in [0x000f/0x1f0f]
549 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
550 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
551 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
552 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
553 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
554 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
555 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
556 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
557 * Creative Card all ins and outs [0x3fff/0x7fff]
559 The power-management is supported.
564 Module for Creative Emu10k1X (SB Live Dell OEM version)
566 This module supports multiple cards.
571 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
572 * SoundBlaster PCI 64
573 * SoundBlaster PCI 128
575 joystick - Enable joystick (default off)
577 This module supports multiple cards and autoprobe.
579 The power-management is supported.
584 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
585 * SoundBlaster PCI 64
586 * SoundBlaster PCI 128
587 * SoundBlaster Vibra PCI
589 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
590 0 = disable (default), 1 = auto-detect
592 This module supports multiple cards and autoprobe.
594 The power-management is supported.
599 Module for sound cards based on ESS ES968 chip (PnP only).
601 port - port # for ES968 (SB8) chip (PnP setup)
602 irq - IRQ # for ES968 (SB8) chip (PnP setup)
603 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
605 This module supports multiple cards, PnP and autoprobe.
607 The power-management is supported.
612 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
614 port - port # for ES-1688 chip (0x220,0x240,0x260)
615 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
616 irq - IRQ # for ES-1688 chip (5,7,9,10)
617 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
618 dma8 - DMA # for ES-1688 chip (0,1,3)
620 This module supports multiple cards and autoprobe (without MPU-401 port).
625 Module for ESS AudioDrive ES-18xx sound cards.
627 port - port # for ES-18xx chip (0x220,0x240,0x260)
628 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
629 fm_port - port # for FM (optional, not used)
630 irq - IRQ # for ES-18xx chip (5,7,9,10)
631 dma1 - first DMA # for ES-18xx chip (0,1,3)
632 dma2 - first DMA # for ES-18xx chip (0,1,3)
633 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
635 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
636 port if native ISA PnP routines are not used).
637 When dma2 is equal with dma1, the driver works as half-duplex.
639 The power-management is supported.
644 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
646 This module supports multiple cards and autoprobe.
648 The power-management is supported.
653 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
655 total_bufsize - total buffer size in kB (1-4096kB)
656 pcm_substreams_p - playback channels (1-8, default=2)
657 pcm_substreams_c - capture channels (1-8, default=0)
658 clock - clock (0 = auto-detection)
659 use_pm - support the power-management (0 = off, 1 = on,
661 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
662 joystick - enable joystick (default off)
664 This module supports multiple cards and autoprobe.
666 The power-management is supported.
671 Module for ForteMedia FM801 based PCI sound cards.
673 tea575x_tuner - Enable TEA575x tuner
674 - 1 = MediaForte 256-PCS
675 - 2 = MediaForte 256-PCPR
676 - 3 = MediaForte 64-PCR
677 - High 16-bits are video (radio) device number + 1
678 - example: 0x10002 (MediaForte 256-PCPR, device 1)
680 This module supports multiple cards and autoprobe.
682 The power-management is supported.
687 Module for Echoaudio Gina20
689 This module supports multiple cards.
690 The driver requires the firmware loader support on kernel.
695 Module for Echoaudio Gina24
697 This module supports multiple cards.
698 The driver requires the firmware loader support on kernel.
700 Module snd-gusclassic
701 ---------------------
703 Module for Gravis UltraSound Classic sound card.
705 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
706 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
707 dma1 - DMA # for GF1 chip (1,3,5,6,7)
708 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
709 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
710 voices - GF1 voices limit (14-32)
711 pcm_voices - reserved PCM voices
713 This module supports multiple cards and autoprobe.
715 Module snd-gusextreme
716 ---------------------
718 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
720 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
721 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
722 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
723 irq - IRQ # for ES-1688 chip (5,7,9,10)
724 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
725 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
726 dma8 - DMA # for ES-1688 chip (0,1,3)
727 dma1 - DMA # for GF1 chip (1,3,5,6,7)
728 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
729 voices - GF1 voices limit (14-32)
730 pcm_voices - reserved PCM voices
732 This module supports multiple cards and autoprobe (without MPU-401 port).
737 Module for Gravis UltraSound MAX sound card.
739 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
740 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
741 dma1 - DMA # for GF1 chip (1,3,5,6,7)
742 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
743 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
744 voices - GF1 voices limit (14-32)
745 pcm_voices - reserved PCM voices
747 This module supports multiple cards and autoprobe.
752 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
753 ATI SB450, SB600, RS600,
757 model - force the model name
758 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
759 single_cmd - Use single immediate commands to communicate with
760 codecs (for debugging only)
762 This module supports one card and autoprobe.
764 Each codec may have a model table for different configurations.
765 If your machine isn't listed there, the default (usually minimal)
766 configuration is set up. You can pass "model=<name>" option to
767 specify a certain model in such a case. There are different
768 models depending on the codec chip.
770 Model name Description
771 ---------- -----------
773 3stack 3-jack in back and a headphone out
774 3stack-digout 3-jack in back, a HP out and a SPDIF out
775 5stack 5-jack in back, 2-jack in front
776 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
777 6stack 6-jack in back, 2-jack in front
778 6stack-digout 6-jack with a SPDIF out
780 z71v 3-jack (HP shared SPDIF)
784 lg LG laptop (m1 express dual)
786 clevo Clevo laptops (m520G, m665n)
787 test for testing/debugging purpose, almost all controls can be
788 adjusted. Appearing only when compiled with
790 auto auto-config reading BIOS (default)
794 fujitsu Fujitsu S7020
796 basic fixed pin assignment (old default model)
797 auto auto-config reading BIOS (default)
800 fujitsu Fujitsu Laptop
801 hp-bpc HP xw4400/6400/8400/9400 laptops
803 basic fixed pin assignment w/o SPDIF
804 auto auto-config reading BIOS (default)
807 3stack-dig 3-jack with SPDIF I/O
808 6stck-dig 6-jack digital with SPDIF I/O
809 auto auto-config reading BIOS (default)
812 3stack-dig 3-jack with SPDIF I/O
813 6stack-dig 6-jack digital with SPDIF I/O
814 6stack-dig-demo 6-stack digital for Intel demo board
815 auto auto-config reading BIOS (default)
819 3stack-dig 3-jack with SPDIF I/O
820 6stack-dig 6-jack with SPDIF I/O
821 auto auto-config reading BIOS (default)
824 minimal 3-jack in back
825 min_fp 3-jack in back, 2-jack in front
826 full 6-jack in back, 2-jack in front
827 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
828 allout 5-jack in back, 2-jack in front, SPDIF out
829 auto auto-config reading BIOS (default)
832 basic 3-jack (default)
834 thinkpad Lenovo Thinkpad T60/X60/Z60
837 6stack 6-jack, separate surrounds (default)
838 3stack 3-stack, shared surrounds
839 laptop 2-channel only (FSC V2060, Samsung M50)
840 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
844 6stack-dig ditto with SPDIF
846 3stack-dig ditto with SPDIF
847 laptop 3-jack with hp-jack automute
848 laptop-dig ditto with SPDIF
849 auto auto-confgi reading BIOS (default)
852 vaio Setup for VAIO FE550G/SZ110
854 If the default configuration doesn't work and one of the above
855 matches with your device, report it together with the PCI
856 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
857 ML (see the section "Links and Addresses").
859 Note 2: If you get click noises on output, try the module option
860 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
861 register value without FIFO size correction as the current
862 DMA pointer. position_fix=2 will make the driver to use
863 the position buffer instead of reading SD_LPIB register.
864 (Usually SD_LPLIB register is more accurate than the
867 NB: If you get many "azx_get_response timeout" messages at
868 loading, it's likely a problem of interrupts (e.g. ACPI irq
869 routing). Try to boot with options like "pci=noacpi". Also, you
870 can try "single_cmd=1" module option. This will switch the
871 communication method between HDA controller and codecs to the
872 single immediate commands instead of CORB/RIRB. Basically, the
873 single command mode is provided only for BIOS, and you won't get
874 unsolicited events, too. But, at least, this works independently
875 from the irq. Remember this is a last resort, and should be
876 avoided as much as possible...
878 The power-management is supported.
883 Module for RME Hammerfall DSP audio interface(s)
885 This module supports multiple cards.
887 Note: The firmware data can be automatically loaded via hotplug
888 when CONFIG_FW_LOADER is set. Otherwise, you need to load
889 the firmware via hdsploader utility included in alsa-tools
891 The firmware data is found in alsa-firmware package.
893 Note: snd-page-alloc module does the job which snd-hammerfall-mem
894 module did formerly. It will allocate the buffers in advance
895 when any HDSP cards are found. To make the buffer
896 allocation sure, load snd-page-alloc module in the early
897 stage of boot sequence. See "Early Buffer Allocation"
903 Module for RME HDSP MADI board.
905 precise_ptr - Enable precise pointer, or disable.
906 line_outs_monitor - Send playback streams to analog outs by default.
907 enable_monitor - Enable Analog Out on Channel 63/64 by default.
909 See hdspm.txt for details.
914 Module for Envy24 (ICE1712) based PCI sound cards.
915 * MidiMan M Audio Delta 1010
916 * MidiMan M Audio Delta 1010LT
917 * MidiMan M Audio Delta DiO 2496
918 * MidiMan M Audio Delta 66
919 * MidiMan M Audio Delta 44
920 * MidiMan M Audio Delta 410
921 * MidiMan M Audio Audiophile 2496
927 * Hoontech SoundTrack DSP 24
928 * Hoontech SoundTrack DSP 24 Value
929 * Hoontech SoundTrack DSP 24 Media 7.1
930 * Event Electronics, EZ8
932 * Lionstracs, Mediastaton
934 model - Use the given board model, one of the following:
935 delta1010, dio2496, delta66, delta44, audiophile, delta410,
936 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
937 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
938 phase88, mediastation
939 omni - Omni I/O support for MidiMan M-Audio Delta44/66
940 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transciever)
941 in msec resolution, default value is 500 (0.5 sec)
943 This module supports multiple cards and autoprobe. Note: The consumer part
944 is not used with all Envy24 based cards (for example in the MidiMan Delta
947 Note: The supported board is detected by reading EEPROM or PCI
948 SSID (if EEPROM isn't available). You can override the
949 model by passing "model" module option in case that the
950 driver isn't configured properly or you want to try another
956 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
957 * MidiMan M Audio Revolution 5.1
958 * MidiMan M Audio Revolution 7.1
960 * TerraTec Aureon 5.1 Sky
961 * TerraTec Aureon 7.1 Space
962 * TerraTec Aureon 7.1 Universe
965 * AudioTrak Prodigy 7.1
966 * AudioTrak Prodigy 7.1LT
967 * AudioTrak Prodigy 192
969 * Albatron K8X800 Pro II
976 model - Use the given board model, one of the following:
977 revo51, revo71, amp2000, prodigy71, prodigy71lt,
978 prodigy192, aureon51, aureon71, universe,
979 k8x800, phase22, phase28, ms300, av710
981 This module supports multiple cards and autoprobe.
983 Note: The supported board is detected by reading EEPROM or PCI
984 SSID (if EEPROM isn't available). You can override the
985 model by passing "model" module option in case that the
986 driver isn't configured properly or you want to try another
992 Module for Echoaudio Indigo
994 This module supports multiple cards.
995 The driver requires the firmware loader support on kernel.
1000 Module for Echoaudio Indigo DJ
1002 This module supports multiple cards.
1003 The driver requires the firmware loader support on kernel.
1008 Module for Echoaudio Indigo IO
1010 This module supports multiple cards.
1011 The driver requires the firmware loader support on kernel.
1016 Module for AC'97 motherboards from Intel and compatibles.
1017 * Intel i810/810E, i815, i820, i830, i84x, MX440
1018 ICH5, ICH6, ICH7, ESB2
1019 * SiS 7012 (SiS 735)
1020 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1022 * AMD AMD768, AMD8111
1025 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1026 ac97_quirk - AC'97 workaround for strange hardware
1027 See "AC97 Quirk Option" section below.
1028 buggy_irq - Enable workaround for buggy interrupts on some
1029 motherboards (default yes on nForce chips,
1031 buggy_semaphore - Enable workaround for hardwares with buggy
1032 semaphores (e.g. on some ASUS laptops)
1035 This module supports one chip and autoprobe.
1037 Note: the latest driver supports auto-detection of chip clock.
1038 if you still encounter too fast playback, specify the clock
1039 explicitly via the module option "ac97_clock=41194".
1041 Joystick/MIDI ports are not supported by this driver. If your
1042 motherboard has these devices, use the ns558 or snd-mpu401
1043 modules, respectively.
1045 The power-management is supported.
1047 Module snd-intel8x0m
1048 --------------------
1050 Module for Intel ICH (i8x0) chipset MC97 modems.
1051 * Intel i810/810E, i815, i820, i830, i84x, MX440
1053 * SiS 7013 (SiS 735)
1054 * NVidia NForce, NForce2, NForce2s, NForce3
1058 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1060 This module supports one card and autoprobe.
1062 Note: The default index value of this module is -2, i.e. the first
1065 The power-management is supported.
1067 Module snd-interwave
1068 --------------------
1070 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1071 and other sound cards based on AMD InterWave (tm) chip.
1073 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1074 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1075 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1076 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1077 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1078 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1079 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1080 effect - 1 = InterWave effects enable (default 0);
1083 This module supports multiple cards, autoprobe and ISA PnP.
1085 Module snd-interwave-stb
1086 ------------------------
1088 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1089 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1090 circuit for extended control of bass, treble and master volume.
1092 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1093 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1094 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1095 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1096 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1097 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1098 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1099 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1100 effect - 1 = InterWave effects enable (default 0);
1103 This module supports multiple cards, autoprobe and ISA PnP.
1108 Module for Korg 1212 IO PCI card
1110 This module supports multiple cards.
1115 Module for Echoaudio Layla20
1117 This module supports multiple cards.
1118 The driver requires the firmware loader support on kernel.
1123 Module for Echoaudio Layla24
1125 This module supports multiple cards.
1126 The driver requires the firmware loader support on kernel.
1131 Module for Allegro/Maestro3 chips
1133 external_amp - enable external amp (enabled by default)
1134 amp_gpio - GPIO pin number for external amp (0-15) or
1135 -1 for default pin (8 for allegro, 1 for
1138 This module supports autoprobe and multiple chips.
1140 Note: the binding of amplifier is dependent on hardware.
1141 If there is no sound even though all channels are unmuted, try to
1142 specify other gpio connection via amp_gpio option.
1143 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1146 The power-management is supported.
1151 Module for Echoaudio Mia
1153 This module supports multiple cards.
1154 The driver requires the firmware loader support on kernel.
1159 Module for Miro soundcards: miroSOUND PCM 1 pro,
1161 miroSOUND PCM 20 Radio.
1163 port - Port # (0x530,0x604,0xe80,0xf40)
1164 irq - IRQ # (5,7,9,10,11)
1165 dma1 - 1st dma # (0,1,3)
1166 dma2 - 2nd dma # (0,1)
1167 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1168 mpu_irq - MPU-401 irq # (5,7,9,10)
1169 fm_port - FM Port # (0x388)
1170 wss - enable WSS mode
1171 ide - enable onboard ide support
1176 Module for Digigram miXart8 sound cards.
1178 This module supports multiple cards.
1179 Note: One miXart8 board will be represented as 4 alsa cards.
1180 See MIXART.txt for details.
1182 When the driver is compiled as a module and the hotplug firmware
1183 is supported, the firmware data is loaded via hotplug automatically.
1184 Install the necessary firmware files in alsa-firmware package.
1185 When no hotplug fw loader is available, you need to load the
1186 firmware via mixartloader utility in alsa-tools package.
1191 Module for Echoaudio Mona
1193 This module supports multiple cards.
1194 The driver requires the firmware loader support on kernel.
1199 Module for MPU-401 UART devices.
1201 port - port number or -1 (disable)
1202 irq - IRQ number or -1 (disable)
1203 pnp - PnP detection - 0 = disable, 1 = enable (default)
1205 This module supports multiple devices and PnP.
1210 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1213 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1214 irq - IRQ # for MTPAV (7,5, default=7)
1215 hwports - number of supported hardware ports, default=8.
1217 Module supports only 1 card. This module has no enable option.
1222 Module for NeoMagic NM256AV/ZX chips
1224 playback_bufsize - max playback frame size in kB (4-128kB)
1225 capture_bufsize - max capture frame size in kB (4-128kB)
1226 force_ac97 - 0 or 1 (disabled by default)
1227 buffer_top - specify buffer top address
1228 use_cache - 0 or 1 (disabled by default)
1229 vaio_hack - alias buffer_top=0x25a800
1230 reset_workaround - enable AC97 RESET workaround for some laptops
1231 reset_workaround2 - enable extended AC97 RESET workaround for some
1234 This module supports one chip and autoprobe.
1236 The power-management is supported.
1238 Note: on some notebooks the buffer address cannot be detected
1239 automatically, or causes hang-up during initialization.
1240 In such a case, specify the buffer top address explicity via
1243 Sony F250: buffer_top=0x25a800
1244 Sony F270: buffer_top=0x272800
1245 The driver supports only ac97 codec. It's possible to force
1246 to initialize/use ac97 although it's not detected. In such a
1247 case, use force_ac97=1 option - but *NO* guarantee whether it
1250 Note: The NM256 chip can be linked internally with non-AC97
1251 codecs. This driver supports only the AC97 codec, and won't work
1252 with machines with other (most likely CS423x or OPL3SAx) chips,
1253 even though the device is detected in lspci. In such a case, try
1254 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1255 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1256 and proper hardware parameters in the case without ISA PnP.
1258 Note: some laptops need a workaround for AC97 RESET. For the
1259 known hardware like Dell Latitude LS and Sony PCG-F305, this
1260 workaround is enabled automatically. For other laptops with a
1261 hard freeze, you can try reset_workaround=1 option.
1263 Note: Dell Latitude CSx laptops have another problem regarding
1264 AC97 RESET. On these laptops, reset_workaround2 option is
1265 turned on as default. This option is worth to try if the
1266 previous reset_workaround option doesn't help.
1268 Note: This driver is really crappy. It's a porting from the
1269 OSS driver, which is a result of black-magic reverse engineering.
1270 The detection of codec will fail if the driver is loaded *after*
1271 X-server as described above. You might be able to force to load
1272 the module, but it may result in hang-up. Hence, make sure that
1273 you load this module *before* X if you encounter this kind of
1279 Module for Yamaha OPL3-SA2/SA3 sound cards.
1281 port - control port # for OPL3-SA chip (0x370)
1282 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1283 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1284 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1285 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1286 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1287 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1288 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1289 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1291 This module supports multiple cards and ISA PnP. It does not support
1292 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1294 The power-management is supported.
1296 Module snd-opti92x-ad1848
1297 -------------------------
1299 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1300 Module works with OAK Mozart cards as well.
1302 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1303 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1304 fm_port - port # for OPL3 device (0x388)
1305 irq - IRQ # for WSS chip (5,7,9,10,11)
1306 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1307 dma1 - first DMA # for WSS chip (0,1,3)
1309 This module supports only one card, autoprobe and PnP.
1311 Module snd-opti92x-cs4231
1312 -------------------------
1314 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1316 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1317 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1318 fm_port - port # for OPL3 device (0x388)
1319 irq - IRQ # for WSS chip (5,7,9,10,11)
1320 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1321 dma1 - first DMA # for WSS chip (0,1,3)
1322 dma2 - second DMA # for WSS chip (0,1,3)
1324 This module supports only one card, autoprobe and PnP.
1329 Module for sound cards based on OPTi 82c93x chips.
1331 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1332 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1333 fm_port - port # for OPL3 device (0x388)
1334 irq - IRQ # for WSS chip (5,7,9,10,11)
1335 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1336 dma1 - first DMA # for WSS chip (0,1,3)
1337 dma2 - second DMA # for WSS chip (0,1,3)
1339 This module supports only one card, autoprobe and PnP.
1344 Module for Digigram PCXHR boards
1346 This module supports multiple cards.
1348 Module snd-powermac (on ppc only)
1349 ---------------------------------
1351 Module for PowerMac, iMac and iBook on-board soundchips
1353 enable_beep - enable beep using PCM (enabled as default)
1355 Module supports autoprobe a chip.
1357 Note: the driver may have problems regarding endianess.
1359 The power-management is supported.
1361 Module snd-pxa2xx-ac97 (on arm only)
1362 ------------------------------------
1364 Module for AC97 driver for the Intel PXA2xx chip
1366 For ARM architecture only.
1368 The power-management is supported.
1373 Module for Conexant Riptide chip
1375 joystick_port - Joystick port # (default: 0x200)
1376 mpu_port - MPU401 port # (default: 0x330)
1377 opl3_port - OPL3 port # (default: 0x388)
1379 This module supports multiple cards.
1380 The driver requires the firmware loader support on kernel.
1381 You need to install the firmware file "riptide.hex" to the standard
1382 firmware path (e.g. /lib/firmware).
1387 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1388 Prodif96 and Prodif Gold) sound cards.
1390 This module supports multiple cards.
1395 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1397 This module supports multiple cards.
1402 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1404 precise_ptr - Enable precise pointer (doesn't work reliably).
1407 This module supports multiple cards.
1409 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1410 module did formerly. It will allocate the buffers in advance
1411 when any RME9652 cards are found. To make the buffer
1412 allocation sure, load snd-page-alloc module in the early
1413 stage of boot sequence. See "Early Buffer Allocation"
1416 Module snd-sa11xx-uda1341 (on arm only)
1417 ---------------------------------------
1419 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1421 Module supports only one card.
1422 Module has no enable and index options.
1424 The power-management is supported.
1429 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1433 port - port # for SB DSP chip (0x220,0x240,0x260)
1434 irq - IRQ # for SB DSP chip (5,7,9,10)
1435 dma8 - DMA # for SB DSP chip (1,3)
1437 This module supports multiple cards and autoprobe.
1439 The power-management is supported.
1441 Module snd-sb16 and snd-sbawe
1442 -----------------------------
1444 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1445 SoundBlaster AWE 32 (PnP),
1446 SoundBlaster AWE 64 PnP
1448 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1449 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1450 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1451 (snd-sbawe module only)
1452 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1453 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1454 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1455 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1456 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1457 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1459 This module supports multiple cards, autoprobe and ISA PnP.
1461 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1462 disable 16bit DMA with dma16 = -1 module parameter.
1463 Also, all Sound Blaster 16 type cards can operate in 16-bit
1464 half duplex mode through 8-bit DMA channel by disabling their
1467 The power-management is supported.
1472 Module for Aztech Sound Galaxy sound card.
1474 sbport - Port # for SB16 interface (0x220,0x240)
1475 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1476 irq - IRQ # (7,9,10,11)
1479 This module supports multiple cards.
1481 The power-management is supported.
1486 Module for ENSONIQ SoundScape PnP cards.
1488 port - Port # (PnP setup)
1489 irq - IRQ # (PnP setup)
1490 mpu_irq - MPU-401 IRQ # (PnP setup)
1491 dma - DMA # (PnP setup)
1493 This module supports multiple cards. ISA PnP must be enabled.
1494 You need sscape_ctl tool in alsa-tools package for loading
1497 Module snd-sun-amd7930 (on sparc only)
1498 --------------------------------------
1500 Module for AMD7930 sound chips found on Sparcs.
1502 This module supports multiple cards.
1504 Module snd-sun-cs4231 (on sparc only)
1505 -------------------------------------
1507 Module for CS4231 sound chips found on Sparcs.
1509 This module supports multiple cards.
1511 Module snd-sun-dbri (on sparc only)
1512 -----------------------------------
1514 Module for DBRI sound chips found on Sparcs.
1516 This module supports multiple cards.
1518 Module snd-wavefront
1519 --------------------
1521 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1523 cs4232_pcm_port - Port # for CS4232 PCM interface.
1524 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1525 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1526 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1527 use_cs4232_midi - Use CS4232 MPU-401 interface
1528 (inaccessibly located inside your computer)
1529 ics2115_port - Port # for ICS2115
1530 ics2115_irq - IRQ # for ICS2115
1531 fm_port - FM OPL-3 Port #
1532 dma1 - DMA1 # for CS4232 PCM interface.
1533 dma2 - DMA2 # for CS4232 PCM interface.
1534 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1536 This module supports multiple cards and ISA PnP.
1538 Module snd-sonicvibes
1539 ---------------------
1541 Module for S3 SonicVibes PCI sound cards.
1542 * PINE Schubert 32 PCI
1544 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1545 - SoundCard must have onboard SRAM for this.
1546 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1548 This module supports multiple cards and autoprobe.
1550 Module snd-serial-u16550
1551 ------------------------
1553 Module for UART16550A serial MIDI ports.
1555 port - port # for UART16550A chip
1556 irq - IRQ # for UART16550A chip, -1 = poll mode
1557 speed - speed in bauds (9600,19200,38400,57600,115200)
1559 base - base for divisor in bauds (57600,115200,230400,460800)
1561 outs - number of MIDI ports in a serial port (1-4)
1563 adaptor - Type of adaptor.
1564 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1565 3 = MS-124W M/B, 4 = Generic
1567 This module supports multiple cards. This module does not support autoprobe
1568 thus the main port must be specified!!! Other options are optional.
1573 Module for Trident 4DWave DX/NX sound cards.
1574 * Best Union Miss Melody 4DWave PCI
1576 * Warpspeed ONSpeed 4DWave PCI
1579 * CHIC True Sound 4Dwave
1580 * Shark Predator4D-PCI
1581 * Jaton SonicWave 4D
1583 pcm_channels - max channels (voices) reserved for PCM
1584 wavetable_size - max wavetable size in kB (4-?kb)
1586 This module supports multiple cards and autoprobe.
1588 The power-management is supported.
1590 Module snd-usb-audio
1591 --------------------
1593 Module for USB audio and USB MIDI devices.
1595 vid - Vendor ID for the device (optional)
1596 pid - Product ID for the device (optional)
1597 device_setup - Device specific magic number (optional)
1598 - Influence depends on the device
1601 This module supports multiple devices, autoprobe and hotplugging.
1603 Module snd-usb-usx2y
1604 --------------------
1606 Module for Tascam USB US-122, US-224 and US-428 devices.
1608 This module supports multiple devices, autoprobe and hotplugging.
1610 Note: you need to load the firmware via usx2yloader utility included
1611 in alsa-tools and alsa-firmware packages.
1616 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1617 8233A, 8233C, 8235, 8237 (south) bridge.
1619 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1621 joystick - Enable joystick (default off) [VIA686A/686B only]
1622 ac97_clock - AC'97 codec clock base (default 48000Hz)
1623 dxs_support - support DXS channels,
1624 0 = auto (default), 1 = enable, 2 = disable,
1625 3 = 48k only, 4 = no VRA, 5 = enable any sample
1626 rate and different sample rates on different
1628 [VIA8233/C, 8235, 8237 only]
1629 ac97_quirk - AC'97 workaround for strange hardware
1630 See "AC97 Quirk Option" section below.
1632 This module supports one chip and autoprobe.
1634 Note: on some SMP motherboards like MSI 694D the interrupts might
1635 not be generated properly. In such a case, please try to
1636 set the SMP (or MPS) version on BIOS to 1.1 instead of
1637 default value 1.4. Then the interrupt number will be
1638 assigned under 15. You might also upgrade your BIOS.
1640 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1641 channels as the first PCM. On these channels, up to 4
1642 streams can be played at the same time, and the controller
1643 can perform sample rate conversion with separate rates for
1645 As default (dxs_support = 0), 48k fixed rate is chosen
1646 except for the known devices since the output is often
1647 noisy except for 48k on some mother boards due to the
1649 Please try once dxs_support=5 and if it works on other
1650 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1651 know the PCI subsystem vendor/device id's (output of
1653 If dxs_support=5 does not work, try dxs_support=4; if it
1654 doesn't work too, try dxs_support=1. (dxs_support=1 is
1655 usually for old motherboards. The correct implemented
1656 board should work with 4 or 5.) If it still doesn't
1657 work and the default setting is ok, dxs_support=3 is the
1658 right choice. If the default setting doesn't work at all,
1659 try dxs_support=2 to disable the DXS channels.
1660 In any cases, please let us know the result and the
1661 subsystem vendor/device ids. See "Links and Addresses"
1664 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1665 additionally. The mpu_port option is for VIA686 chips only.
1667 The power-management is supported.
1669 Module snd-via82xx-modem
1670 ------------------------
1672 Module for VIA82xx AC97 modem
1674 ac97_clock - AC'97 codec clock base (default 48000Hz)
1676 This module supports one card and autoprobe.
1678 Note: The default index value of this module is -2, i.e. the first
1681 The power-management is supported.
1686 Module for virtual rawmidi devices.
1687 This module creates virtual rawmidi devices which communicate
1688 to the corresponding ALSA sequencer ports.
1690 midi_devs - MIDI devices # (1-4, default=4)
1692 This module supports multiple cards.
1697 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1699 mic - Enable Microphone on V222 Mic (NYI)
1700 ibl - Capture IBL size. (default = 0, minimum size)
1702 This module supports multiple cards.
1704 When the driver is compiled as a module and the hotplug firmware
1705 is supported, the firmware data is loaded via hotplug automatically.
1706 Install the necessary firmware files in alsa-firmware package.
1707 When no hotplug fw loader is available, you need to load the
1708 firmware via vxloader utility in alsa-tools package. To invoke
1709 vxloader automatically, add the following to /etc/modprobe.conf
1711 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1713 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1714 /etc/modules.conf, instead.)
1715 IBL size defines the interrupts period for PCM. The smaller size
1716 gives smaller latency but leads to more CPU consumption, too.
1717 The size is usually aligned to 126. As default (=0), the smallest
1718 size is chosen. The possible IBL values can be found in
1719 /proc/asound/cardX/vx-status proc file.
1721 The power-management is supported.
1726 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1728 ibl - Capture IBL size. (default = 0, minimum size)
1730 This module supports multiple cards. The module is compiled only when
1731 PCMCIA is supported on kernel.
1733 With the older 2.6.x kernel, to activate the driver via the card
1734 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1735 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1736 longer require a config file.
1738 When the driver is compiled as a module and the hotplug firmware
1739 is supported, the firmware data is loaded via hotplug automatically.
1740 Install the necessary firmware files in alsa-firmware package.
1741 When no hotplug fw loader is available, you need to load the
1742 firmware via vxloader utility in alsa-tools package.
1744 About capture IBL, see the description of snd-vx222 module.
1746 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1749 The power-management is supported.
1754 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1756 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1757 1 (auto-detect for YMF744/754 only)
1758 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1759 1 (auto-detect for YMF744/754 only)
1760 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1762 rear_switch - enable shared rear/line-in switch (bool)
1764 This module supports autoprobe and multiple chips.
1766 The power-management is supported.
1768 Module snd-pdaudiocf
1769 --------------------
1771 Module for Sound Core PDAudioCF sound card.
1773 The power-management is supported.
1779 The ac97_quirk option is used to enable/override the workaround for
1780 specific devices on drivers for on-board AC'97 controllers like
1781 snd-intel8x0. Some hardware have swapped output pins between Master
1782 and Headphone, or Surround (thanks to confusion of AC'97
1783 specifications from version to version :-)
1785 The driver provides the auto-detection of known problematic devices,
1786 but some might be unknown or wrongly detected. In such a case, pass
1787 the proper value with this option.
1789 The following strings are accepted:
1790 - default Don't override the default setting
1791 - none Disable the quirk
1792 - hp_only Bind Master and Headphone controls as a single control
1793 - swap_hp Swap headphone and master controls
1794 - swap_surround Swap master and surround controls
1795 - ad_sharing For AD1985, turn on OMS bit and use headphone
1796 - alc_jack For ALC65x, turn on the jack sense mode
1797 - inv_eapd Inverted EAPD implementation
1798 - mute_led Bind EAPD bit for turning on/off mute LED
1800 For backward compatibility, the corresponding integer value -1, 0,
1801 ... are accepted, too.
1803 For example, if "Master" volume control has no effect on your device
1804 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1807 Configuring Non-ISAPNP Cards
1808 ============================
1810 When the kernel is configured with ISA-PnP support, the modules
1811 supporting the isapnp cards will have module options "isapnp".
1812 If this option is set, *only* the ISA-PnP devices will be probed.
1813 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1814 together with the proper i/o and irq configuration.
1816 When the kernel is configured without ISA-PnP support, isapnp option
1817 will be not built in.
1820 Module Autoloading Support
1821 ==========================
1823 The ALSA drivers can be loaded automatically on demand by defining
1824 module aliases. The string 'snd-card-%1' is requested for ALSA native
1825 devices where %i is sound card number from zero to seven.
1827 To auto-load an ALSA driver for OSS services, define the string
1828 'sound-slot-%i' where %i means the slot number for OSS, which
1829 corresponds to the card index of ALSA. Usually, define this
1830 as the same card module.
1832 An example configuration for a single emu10k1 card is like below:
1833 ----- /etc/modprobe.conf
1834 alias snd-card-0 snd-emu10k1
1835 alias sound-slot-0 snd-emu10k1
1836 ----- /etc/modprobe.conf
1838 The available number of auto-loaded sound cards depends on the module
1839 option "cards_limit" of snd module. As default it's set to 1.
1840 To enable the auto-loading of multiple cards, specify the number of
1841 sound cards in that option.
1843 When multiple cards are available, it'd better to specify the index
1844 number for each card via module option, too, so that the order of
1845 cards is kept consistent.
1847 An example configuration for two sound cards is like below:
1849 ----- /etc/modprobe.conf
1851 options snd cards_limit=2
1852 alias snd-card-0 snd-interwave
1853 alias snd-card-1 snd-ens1371
1854 options snd-interwave index=0
1855 options snd-ens1371 index=1
1857 alias sound-slot-0 snd-interwave
1858 alias sound-slot-1 snd-ens1371
1859 ----- /etc/moprobe.conf
1861 In this example, the interwave card is always loaded as the first card
1862 (index 0) and ens1371 as the second (index 1).
1865 ALSA PCM devices to OSS devices mapping
1866 =======================================
1868 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1869 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1870 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1871 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1872 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1873 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1874 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1875 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1876 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1878 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1879 sound card number and second means device number. The ALSA devices
1880 have either 'c' or 'p' suffix indicating the direction, capture and
1881 playback, respectively.
1883 Please note that the device mapping above may be varied via the module
1884 options of snd-pcm-oss module.
1890 The ALSA driver fully supports the devfs extension.
1891 You should add lines below to your devfsd.conf file:
1893 LOOKUP snd MODLOAD ACTION snd
1894 REGISTER ^sound/.* PERMISSIONS root.audio 660
1895 REGISTER ^snd/.* PERMISSIONS root.audio 660
1897 Warning: These lines assume that you have the audio group in your system.
1898 Otherwise replace audio word with another group name (root for
1902 Proc interfaces (/proc/asound)
1903 ==============================
1905 /proc/asound/card#/pcm#[cp]/oss
1906 -------------------------------
1907 String "erase" - erase all additional informations about OSS applications
1908 String "<app_name> <fragments> <fragment_size> [<options>]"
1910 <app_name> - name of application with (higher priority) or without path
1911 <fragments> - number of fragments or zero if auto
1912 <fragment_size> - size of fragment in bytes or zero if auto
1913 <options> - optional parameters
1914 - disable the application tries to open a pcm device for
1915 this channel but does not want to use it.
1916 (Cause a bug or mmap needs)
1917 It's good for Quake etc...
1918 - direct don't use plugins
1919 - block force block mode (rvplayer)
1920 - non-block force non-block mode
1921 - whole-frag write only whole fragments (optimization affecting
1923 - no-silence do not fill silence ahead to avoid clicks
1924 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1925 instead of filled blocks
1927 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1928 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1929 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1932 Early Buffer Allocation
1933 =======================
1935 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1936 sometimes it's too late to find such spaces when the driver module is
1937 actually loaded due to memory fragmentation. You can pre-allocate the
1938 PCM buffers by loading snd-page-alloc module and write commands to its
1939 proc file in prior, for example, in the early boot stage like
1940 /etc/init.d/*.local scripts.
1942 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1943 usage of page allocation. In writing, you can send the following
1944 commands to the snd-page-alloc driver:
1946 - add VENDOR DEVICE MASK SIZE BUFFERS
1948 VENDOR and DEVICE are PCI vendor and device IDs. They take
1949 integer numbers (0x prefix is needed for the hex).
1950 MASK is the PCI DMA mask. Pass 0 if not restricted.
1951 SIZE is the size of each buffer to allocate. You can pass
1952 k and m suffix for KB and MB. The max number is 16MB.
1953 BUFFERS is the number of buffers to allocate. It must be greater
1954 than 0. The max number is 4.
1958 This will erase the all pre-allocated buffers which are not in
1965 ALSA project homepage
1966 http://www.alsa-project.org
1968 ALSA Bug Tracking System
1969 https://bugtrack.alsa-project.org/bugs/
1972 mailto:alsa-devel@lists.sourceforge.net