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 single_cmd - Use single immediate commands to communicate with
763 codecs (for debugging only)
764 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
766 This module supports one card and autoprobe.
768 Each codec may have a model table for different configurations.
769 If your machine isn't listed there, the default (usually minimal)
770 configuration is set up. You can pass "model=<name>" option to
771 specify a certain model in such a case. There are different
772 models depending on the codec chip.
774 Model name Description
775 ---------- -----------
777 3stack 3-jack in back and a headphone out
778 3stack-digout 3-jack in back, a HP out and a SPDIF out
779 5stack 5-jack in back, 2-jack in front
780 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
781 6stack 6-jack in back, 2-jack in front
782 6stack-digout 6-jack with a SPDIF out
784 z71v 3-jack (HP shared SPDIF)
785 asus 3-jack (ASUS Mobo)
787 asus-dig ASUS with SPDIF out
788 asus-dig2 ASUS with SPDIF out (using GPIO2)
790 fujitsu Fujitsu Laptops (Pi1536)
792 lg LG laptop (m1 express dual)
793 lg-lw LG LW20/LW25 laptop
795 clevo Clevo laptops (m520G, m665n)
796 test for testing/debugging purpose, almost all controls can be
797 adjusted. Appearing only when compiled with
799 auto auto-config reading BIOS (default)
803 hp-3013 HP machines (3013-variant)
804 fujitsu Fujitsu S7020
806 basic fixed pin assignment (old default model)
807 auto auto-config reading BIOS (default)
810 fujitsu Fujitsu Laptop
811 hp-bpc HP xw4400/6400/8400/9400 laptops
812 hp-bpc-d7000 HP BPC D7000
814 hippo Hippo (ATI) with jack detection, Sony UX-90s
815 hippo_1 Hippo (Benq) with jack detection
816 basic fixed pin assignment w/o SPDIF
817 auto auto-config reading BIOS (default)
820 3stack-dig 3-jack with SPDIF I/O
821 6stack-dig 6-jack digital with SPDIF I/O
823 macpro MacPro support
824 auto auto-config reading BIOS (default)
827 3stack-dig 3-jack with SPDIF I/O
828 6stack-dig 6-jack digital with SPDIF I/O
829 3stack-6ch 3-jack 6-channel
830 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
831 6stack-dig-demo 6-jack digital for Intel demo board
832 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
833 medion Medion Laptops
835 targa-2ch-dig Targs/MSI with 2-channel
836 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
837 auto auto-config reading BIOS (default)
841 3stack-dig 3-jack with SPDIF I/O
842 6stack-dig 6-jack with SPDIF I/O
843 3stack-660 3-jack (for ALC660)
844 uniwill-m31 Uniwill M31 laptop
845 toshiba Toshiba laptop support
846 asus Asus laptop support
847 asus-laptop ASUS F2/F3 laptops
848 auto auto-config reading BIOS (default)
852 3stack-dig 3-jack with SPDIF OUT
853 6stack-dig 6-jack with SPDIF OUT
854 3stack-660 3-jack (for ALC660VD)
855 auto auto-config reading BIOS (default)
858 minimal 3-jack in back
859 min_fp 3-jack in back, 2-jack in front
860 full 6-jack in back, 2-jack in front
861 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
862 allout 5-jack in back, 2-jack in front, SPDIF out
863 auto auto-config reading BIOS (default)
866 basic 3-jack (default)
868 thinkpad Lenovo Thinkpad T60/X60/Z60
872 6stack 6-jack, separate surrounds (default)
873 3stack 3-stack, shared surrounds
874 laptop 2-channel only (FSC V2060, Samsung M50)
875 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
876 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
880 6stack-dig ditto with SPDIF
882 3stack-dig ditto with SPDIF
883 laptop 3-jack with hp-jack automute
884 laptop-dig ditto with SPDIF
885 auto auto-config reading BIOS (default)
889 test for testing/debugging purpose, almost all controls
890 can be adjusted. Appearing only when compiled with
894 laptop Basic Laptop config
895 laptop-hp Laptop config for some HP models (subdevice 30A5)
896 laptop-eapd Laptop config with EAPD support
897 test for testing/debugging purpose, almost all controls
898 can be adjusted. Appearing only when compiled with
907 5stack D945 5stack + SPDIF
908 macmini Intel Mac Mini
909 macbook Intel Mac Book
910 macbook-pro-v1 Intel Mac Book Pro 1st generation
911 macbook-pro Intel Mac Book Pro 2nd generation
914 ref Reference board, base config
915 m2-2 Some Gateway MX series laptops
916 m6 Some Gateway NX series laptops
918 STAC9227/9228/9229/927x
921 5stack D965 5stack + SPDIF
924 vaio Setup for VAIO FE550G/SZ110
925 vaio-ar Setup for VAIO AR
927 If the default configuration doesn't work and one of the above
928 matches with your device, report it together with the PCI
929 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
930 ML (see the section "Links and Addresses").
932 Note 2: If you get click noises on output, try the module option
933 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
934 register value without FIFO size correction as the current
935 DMA pointer. position_fix=2 will make the driver to use
936 the position buffer instead of reading SD_LPIB register.
937 (Usually SD_LPLIB register is more accurate than the
940 NB: If you get many "azx_get_response timeout" messages at
941 loading, it's likely a problem of interrupts (e.g. ACPI irq
942 routing). Try to boot with options like "pci=noacpi". Also, you
943 can try "single_cmd=1" module option. This will switch the
944 communication method between HDA controller and codecs to the
945 single immediate commands instead of CORB/RIRB. Basically, the
946 single command mode is provided only for BIOS, and you won't get
947 unsolicited events, too. But, at least, this works independently
948 from the irq. Remember this is a last resort, and should be
949 avoided as much as possible...
951 The power-management is supported.
956 Module for RME Hammerfall DSP audio interface(s)
958 This module supports multiple cards.
960 Note: The firmware data can be automatically loaded via hotplug
961 when CONFIG_FW_LOADER is set. Otherwise, you need to load
962 the firmware via hdsploader utility included in alsa-tools
964 The firmware data is found in alsa-firmware package.
966 Note: snd-page-alloc module does the job which snd-hammerfall-mem
967 module did formerly. It will allocate the buffers in advance
968 when any HDSP cards are found. To make the buffer
969 allocation sure, load snd-page-alloc module in the early
970 stage of boot sequence. See "Early Buffer Allocation"
976 Module for RME HDSP MADI board.
978 precise_ptr - Enable precise pointer, or disable.
979 line_outs_monitor - Send playback streams to analog outs by default.
980 enable_monitor - Enable Analog Out on Channel 63/64 by default.
982 See hdspm.txt for details.
987 Module for Envy24 (ICE1712) based PCI sound cards.
988 * MidiMan M Audio Delta 1010
989 * MidiMan M Audio Delta 1010LT
990 * MidiMan M Audio Delta DiO 2496
991 * MidiMan M Audio Delta 66
992 * MidiMan M Audio Delta 44
993 * MidiMan M Audio Delta 410
994 * MidiMan M Audio Audiophile 2496
1000 * Hoontech SoundTrack DSP 24
1001 * Hoontech SoundTrack DSP 24 Value
1002 * Hoontech SoundTrack DSP 24 Media 7.1
1003 * Event Electronics, EZ8
1005 * Lionstracs, Mediastaton
1007 model - Use the given board model, one of the following:
1008 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1009 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1010 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1011 phase88, mediastation
1012 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1013 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1014 in msec resolution, default value is 500 (0.5 sec)
1016 This module supports multiple cards and autoprobe. Note: The consumer part
1017 is not used with all Envy24 based cards (for example in the MidiMan Delta
1020 Note: The supported board is detected by reading EEPROM or PCI
1021 SSID (if EEPROM isn't available). You can override the
1022 model by passing "model" module option in case that the
1023 driver isn't configured properly or you want to try another
1029 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1030 * MidiMan M Audio Revolution 5.1
1031 * MidiMan M Audio Revolution 7.1
1032 * MidiMan M Audio Audiophile 192
1034 * TerraTec Aureon 5.1 Sky
1035 * TerraTec Aureon 7.1 Space
1036 * TerraTec Aureon 7.1 Universe
1039 * AudioTrak Prodigy 7.1
1040 * AudioTrak Prodigy 7.1LT
1041 * AudioTrak Prodigy 192
1043 * Albatron K8X800 Pro II
1044 * Chaintech ZNF3-150
1045 * Chaintech ZNF3-250
1050 model - Use the given board model, one of the following:
1051 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1052 prodigy192, aureon51, aureon71, universe, ap192,
1053 k8x800, phase22, phase28, ms300, av710
1055 This module supports multiple cards and autoprobe.
1057 Note: The supported board is detected by reading EEPROM or PCI
1058 SSID (if EEPROM isn't available). You can override the
1059 model by passing "model" module option in case that the
1060 driver isn't configured properly or you want to try another
1066 Module for Echoaudio Indigo
1068 This module supports multiple cards.
1069 The driver requires the firmware loader support on kernel.
1074 Module for Echoaudio Indigo DJ
1076 This module supports multiple cards.
1077 The driver requires the firmware loader support on kernel.
1082 Module for Echoaudio Indigo IO
1084 This module supports multiple cards.
1085 The driver requires the firmware loader support on kernel.
1090 Module for AC'97 motherboards from Intel and compatibles.
1091 * Intel i810/810E, i815, i820, i830, i84x, MX440
1092 ICH5, ICH6, ICH7, ESB2
1093 * SiS 7012 (SiS 735)
1094 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1096 * AMD AMD768, AMD8111
1099 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1100 ac97_quirk - AC'97 workaround for strange hardware
1101 See "AC97 Quirk Option" section below.
1102 buggy_irq - Enable workaround for buggy interrupts on some
1103 motherboards (default yes on nForce chips,
1105 buggy_semaphore - Enable workaround for hardwares with buggy
1106 semaphores (e.g. on some ASUS laptops)
1108 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1109 from the controller chip
1110 (0 = off, 1 = on, -1 = default)
1112 This module supports one chip and autoprobe.
1114 Note: the latest driver supports auto-detection of chip clock.
1115 if you still encounter too fast playback, specify the clock
1116 explicitly via the module option "ac97_clock=41194".
1118 Joystick/MIDI ports are not supported by this driver. If your
1119 motherboard has these devices, use the ns558 or snd-mpu401
1120 modules, respectively.
1122 The power-management is supported.
1124 Module snd-intel8x0m
1125 --------------------
1127 Module for Intel ICH (i8x0) chipset MC97 modems.
1128 * Intel i810/810E, i815, i820, i830, i84x, MX440
1130 * SiS 7013 (SiS 735)
1131 * NVidia NForce, NForce2, NForce2s, NForce3
1135 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1137 This module supports one card and autoprobe.
1139 Note: The default index value of this module is -2, i.e. the first
1142 The power-management is supported.
1144 Module snd-interwave
1145 --------------------
1147 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1148 and other sound cards based on AMD InterWave (tm) chip.
1150 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1151 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1152 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1153 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1154 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1155 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1156 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1157 effect - 1 = InterWave effects enable (default 0);
1160 This module supports multiple cards, autoprobe and ISA PnP.
1162 Module snd-interwave-stb
1163 ------------------------
1165 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1166 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1167 circuit for extended control of bass, treble and master volume.
1169 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1170 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1171 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1172 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1173 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1174 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1175 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1176 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1177 effect - 1 = InterWave effects enable (default 0);
1180 This module supports multiple cards, autoprobe and ISA PnP.
1185 Module for Korg 1212 IO PCI card
1187 This module supports multiple cards.
1192 Module for Echoaudio Layla20
1194 This module supports multiple cards.
1195 The driver requires the firmware loader support on kernel.
1200 Module for Echoaudio Layla24
1202 This module supports multiple cards.
1203 The driver requires the firmware loader support on kernel.
1208 Module for Allegro/Maestro3 chips
1210 external_amp - enable external amp (enabled by default)
1211 amp_gpio - GPIO pin number for external amp (0-15) or
1212 -1 for default pin (8 for allegro, 1 for
1215 This module supports autoprobe and multiple chips.
1217 Note: the binding of amplifier is dependent on hardware.
1218 If there is no sound even though all channels are unmuted, try to
1219 specify other gpio connection via amp_gpio option.
1220 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1223 The power-management is supported.
1228 Module for Echoaudio Mia
1230 This module supports multiple cards.
1231 The driver requires the firmware loader support on kernel.
1236 Module for Miro soundcards: miroSOUND PCM 1 pro,
1238 miroSOUND PCM 20 Radio.
1240 port - Port # (0x530,0x604,0xe80,0xf40)
1241 irq - IRQ # (5,7,9,10,11)
1242 dma1 - 1st dma # (0,1,3)
1243 dma2 - 2nd dma # (0,1)
1244 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1245 mpu_irq - MPU-401 irq # (5,7,9,10)
1246 fm_port - FM Port # (0x388)
1247 wss - enable WSS mode
1248 ide - enable onboard ide support
1253 Module for Digigram miXart8 sound cards.
1255 This module supports multiple cards.
1256 Note: One miXart8 board will be represented as 4 alsa cards.
1257 See MIXART.txt for details.
1259 When the driver is compiled as a module and the hotplug firmware
1260 is supported, the firmware data is loaded via hotplug automatically.
1261 Install the necessary firmware files in alsa-firmware package.
1262 When no hotplug fw loader is available, you need to load the
1263 firmware via mixartloader utility in alsa-tools package.
1268 Module for Echoaudio Mona
1270 This module supports multiple cards.
1271 The driver requires the firmware loader support on kernel.
1276 Module for MPU-401 UART devices.
1278 port - port number or -1 (disable)
1279 irq - IRQ number or -1 (disable)
1280 pnp - PnP detection - 0 = disable, 1 = enable (default)
1281 uart_enter - Issue UART_ENTER command at open - bool, default = on
1283 This module supports multiple devices and PnP.
1288 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1291 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1292 irq - IRQ # for MTPAV (7,5, default=7)
1293 hwports - number of supported hardware ports, default=8.
1295 Module supports only 1 card. This module has no enable option.
1300 Module for Ego Systems (ESI) Miditerminal 4140
1302 This module supports multiple devices.
1303 Requires parport (CONFIG_PARPORT).
1308 Module for NeoMagic NM256AV/ZX chips
1310 playback_bufsize - max playback frame size in kB (4-128kB)
1311 capture_bufsize - max capture frame size in kB (4-128kB)
1312 force_ac97 - 0 or 1 (disabled by default)
1313 buffer_top - specify buffer top address
1314 use_cache - 0 or 1 (disabled by default)
1315 vaio_hack - alias buffer_top=0x25a800
1316 reset_workaround - enable AC97 RESET workaround for some laptops
1317 reset_workaround2 - enable extended AC97 RESET workaround for some
1320 This module supports one chip and autoprobe.
1322 The power-management is supported.
1324 Note: on some notebooks the buffer address cannot be detected
1325 automatically, or causes hang-up during initialization.
1326 In such a case, specify the buffer top address explicitly via
1327 the buffer_top option.
1329 Sony F250: buffer_top=0x25a800
1330 Sony F270: buffer_top=0x272800
1331 The driver supports only ac97 codec. It's possible to force
1332 to initialize/use ac97 although it's not detected. In such a
1333 case, use force_ac97=1 option - but *NO* guarantee whether it
1336 Note: The NM256 chip can be linked internally with non-AC97
1337 codecs. This driver supports only the AC97 codec, and won't work
1338 with machines with other (most likely CS423x or OPL3SAx) chips,
1339 even though the device is detected in lspci. In such a case, try
1340 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1341 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1342 and proper hardware parameters in the case without ISA PnP.
1344 Note: some laptops need a workaround for AC97 RESET. For the
1345 known hardware like Dell Latitude LS and Sony PCG-F305, this
1346 workaround is enabled automatically. For other laptops with a
1347 hard freeze, you can try reset_workaround=1 option.
1349 Note: Dell Latitude CSx laptops have another problem regarding
1350 AC97 RESET. On these laptops, reset_workaround2 option is
1351 turned on as default. This option is worth to try if the
1352 previous reset_workaround option doesn't help.
1354 Note: This driver is really crappy. It's a porting from the
1355 OSS driver, which is a result of black-magic reverse engineering.
1356 The detection of codec will fail if the driver is loaded *after*
1357 X-server as described above. You might be able to force to load
1358 the module, but it may result in hang-up. Hence, make sure that
1359 you load this module *before* X if you encounter this kind of
1365 Module for Yamaha OPL3-SA2/SA3 sound cards.
1367 port - control port # for OPL3-SA chip (0x370)
1368 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1369 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1370 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1371 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1372 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1373 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1374 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1375 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1377 This module supports multiple cards and ISA PnP. It does not support
1378 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1380 The power-management is supported.
1382 Module snd-opti92x-ad1848
1383 -------------------------
1385 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1386 Module works with OAK Mozart cards as well.
1388 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1389 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1390 fm_port - port # for OPL3 device (0x388)
1391 irq - IRQ # for WSS chip (5,7,9,10,11)
1392 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1393 dma1 - first DMA # for WSS chip (0,1,3)
1395 This module supports only one card, autoprobe and PnP.
1397 Module snd-opti92x-cs4231
1398 -------------------------
1400 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1402 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1403 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1404 fm_port - port # for OPL3 device (0x388)
1405 irq - IRQ # for WSS chip (5,7,9,10,11)
1406 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1407 dma1 - first DMA # for WSS chip (0,1,3)
1408 dma2 - second DMA # for WSS chip (0,1,3)
1410 This module supports only one card, autoprobe and PnP.
1415 Module for sound cards based on OPTi 82c93x chips.
1417 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1418 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1419 fm_port - port # for OPL3 device (0x388)
1420 irq - IRQ # for WSS chip (5,7,9,10,11)
1421 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1422 dma1 - first DMA # for WSS chip (0,1,3)
1423 dma2 - second DMA # for WSS chip (0,1,3)
1425 This module supports only one card, autoprobe and PnP.
1430 Module for Digigram PCXHR boards
1432 This module supports multiple cards.
1434 Module snd-portman2x4
1435 ---------------------
1437 Module for Midiman Portman 2x4 parallel port MIDI interface
1439 This module supports multiple cards.
1441 Module snd-powermac (on ppc only)
1442 ---------------------------------
1444 Module for PowerMac, iMac and iBook on-board soundchips
1446 enable_beep - enable beep using PCM (enabled as default)
1448 Module supports autoprobe a chip.
1450 Note: the driver may have problems regarding endianess.
1452 The power-management is supported.
1454 Module snd-pxa2xx-ac97 (on arm only)
1455 ------------------------------------
1457 Module for AC97 driver for the Intel PXA2xx chip
1459 For ARM architecture only.
1461 The power-management is supported.
1466 Module for Conexant Riptide chip
1468 joystick_port - Joystick port # (default: 0x200)
1469 mpu_port - MPU401 port # (default: 0x330)
1470 opl3_port - OPL3 port # (default: 0x388)
1472 This module supports multiple cards.
1473 The driver requires the firmware loader support on kernel.
1474 You need to install the firmware file "riptide.hex" to the standard
1475 firmware path (e.g. /lib/firmware).
1480 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1481 Prodif96 and Prodif Gold) sound cards.
1483 This module supports multiple cards.
1488 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1490 This module supports multiple cards.
1495 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1497 precise_ptr - Enable precise pointer (doesn't work reliably).
1500 This module supports multiple cards.
1502 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1503 module did formerly. It will allocate the buffers in advance
1504 when any RME9652 cards are found. To make the buffer
1505 allocation sure, load snd-page-alloc module in the early
1506 stage of boot sequence. See "Early Buffer Allocation"
1509 Module snd-sa11xx-uda1341 (on arm only)
1510 ---------------------------------------
1512 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1514 Module supports only one card.
1515 Module has no enable and index options.
1517 The power-management is supported.
1522 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1526 port - port # for SB DSP chip (0x220,0x240,0x260)
1527 irq - IRQ # for SB DSP chip (5,7,9,10)
1528 dma8 - DMA # for SB DSP chip (1,3)
1530 This module supports multiple cards and autoprobe.
1532 The power-management is supported.
1534 Module snd-sb16 and snd-sbawe
1535 -----------------------------
1537 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1538 SoundBlaster AWE 32 (PnP),
1539 SoundBlaster AWE 64 PnP
1541 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1542 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1543 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1544 (snd-sbawe module only)
1545 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1546 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1547 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1548 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1549 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1550 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1552 This module supports multiple cards, autoprobe and ISA PnP.
1554 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1555 disable 16bit DMA with dma16 = -1 module parameter.
1556 Also, all Sound Blaster 16 type cards can operate in 16-bit
1557 half duplex mode through 8-bit DMA channel by disabling their
1560 The power-management is supported.
1565 Module for Aztech Sound Galaxy sound card.
1567 sbport - Port # for SB16 interface (0x220,0x240)
1568 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1569 irq - IRQ # (7,9,10,11)
1572 This module supports multiple cards.
1574 The power-management is supported.
1579 Module for ENSONIQ SoundScape PnP cards.
1581 port - Port # (PnP setup)
1582 irq - IRQ # (PnP setup)
1583 mpu_irq - MPU-401 IRQ # (PnP setup)
1584 dma - DMA # (PnP setup)
1586 This module supports multiple cards. ISA PnP must be enabled.
1587 You need sscape_ctl tool in alsa-tools package for loading
1590 Module snd-sun-amd7930 (on sparc only)
1591 --------------------------------------
1593 Module for AMD7930 sound chips found on Sparcs.
1595 This module supports multiple cards.
1597 Module snd-sun-cs4231 (on sparc only)
1598 -------------------------------------
1600 Module for CS4231 sound chips found on Sparcs.
1602 This module supports multiple cards.
1604 Module snd-sun-dbri (on sparc only)
1605 -----------------------------------
1607 Module for DBRI sound chips found on Sparcs.
1609 This module supports multiple cards.
1611 Module snd-wavefront
1612 --------------------
1614 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1616 cs4232_pcm_port - Port # for CS4232 PCM interface.
1617 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1618 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1619 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1620 use_cs4232_midi - Use CS4232 MPU-401 interface
1621 (inaccessibly located inside your computer)
1622 ics2115_port - Port # for ICS2115
1623 ics2115_irq - IRQ # for ICS2115
1624 fm_port - FM OPL-3 Port #
1625 dma1 - DMA1 # for CS4232 PCM interface.
1626 dma2 - DMA2 # for CS4232 PCM interface.
1627 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1629 This module supports multiple cards and ISA PnP.
1631 Module snd-sonicvibes
1632 ---------------------
1634 Module for S3 SonicVibes PCI sound cards.
1635 * PINE Schubert 32 PCI
1637 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1638 - SoundCard must have onboard SRAM for this.
1639 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1641 This module supports multiple cards and autoprobe.
1643 Module snd-serial-u16550
1644 ------------------------
1646 Module for UART16550A serial MIDI ports.
1648 port - port # for UART16550A chip
1649 irq - IRQ # for UART16550A chip, -1 = poll mode
1650 speed - speed in bauds (9600,19200,38400,57600,115200)
1652 base - base for divisor in bauds (57600,115200,230400,460800)
1654 outs - number of MIDI ports in a serial port (1-4)
1656 adaptor - Type of adaptor.
1657 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1658 3 = MS-124W M/B, 4 = Generic
1660 This module supports multiple cards. This module does not support autoprobe
1661 thus the main port must be specified!!! Other options are optional.
1666 Module for Trident 4DWave DX/NX sound cards.
1667 * Best Union Miss Melody 4DWave PCI
1669 * Warpspeed ONSpeed 4DWave PCI
1672 * CHIC True Sound 4Dwave
1673 * Shark Predator4D-PCI
1674 * Jaton SonicWave 4D
1676 pcm_channels - max channels (voices) reserved for PCM
1677 wavetable_size - max wavetable size in kB (4-?kb)
1679 This module supports multiple cards and autoprobe.
1681 The power-management is supported.
1683 Module snd-usb-audio
1684 --------------------
1686 Module for USB audio and USB MIDI devices.
1688 vid - Vendor ID for the device (optional)
1689 pid - Product ID for the device (optional)
1690 device_setup - Device specific magic number (optional)
1691 - Influence depends on the device
1694 This module supports multiple devices, autoprobe and hotplugging.
1696 Module snd-usb-usx2y
1697 --------------------
1699 Module for Tascam USB US-122, US-224 and US-428 devices.
1701 This module supports multiple devices, autoprobe and hotplugging.
1703 Note: you need to load the firmware via usx2yloader utility included
1704 in alsa-tools and alsa-firmware packages.
1709 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1710 8233A, 8233C, 8235, 8237 (south) bridge.
1712 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1714 joystick - Enable joystick (default off) [VIA686A/686B only]
1715 ac97_clock - AC'97 codec clock base (default 48000Hz)
1716 dxs_support - support DXS channels,
1717 0 = auto (default), 1 = enable, 2 = disable,
1718 3 = 48k only, 4 = no VRA, 5 = enable any sample
1719 rate and different sample rates on different
1721 [VIA8233/C, 8235, 8237 only]
1722 ac97_quirk - AC'97 workaround for strange hardware
1723 See "AC97 Quirk Option" section below.
1725 This module supports one chip and autoprobe.
1727 Note: on some SMP motherboards like MSI 694D the interrupts might
1728 not be generated properly. In such a case, please try to
1729 set the SMP (or MPS) version on BIOS to 1.1 instead of
1730 default value 1.4. Then the interrupt number will be
1731 assigned under 15. You might also upgrade your BIOS.
1733 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1734 channels as the first PCM. On these channels, up to 4
1735 streams can be played at the same time, and the controller
1736 can perform sample rate conversion with separate rates for
1738 As default (dxs_support = 0), 48k fixed rate is chosen
1739 except for the known devices since the output is often
1740 noisy except for 48k on some mother boards due to the
1742 Please try once dxs_support=5 and if it works on other
1743 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1744 know the PCI subsystem vendor/device id's (output of
1746 If dxs_support=5 does not work, try dxs_support=4; if it
1747 doesn't work too, try dxs_support=1. (dxs_support=1 is
1748 usually for old motherboards. The correct implemented
1749 board should work with 4 or 5.) If it still doesn't
1750 work and the default setting is ok, dxs_support=3 is the
1751 right choice. If the default setting doesn't work at all,
1752 try dxs_support=2 to disable the DXS channels.
1753 In any cases, please let us know the result and the
1754 subsystem vendor/device ids. See "Links and Addresses"
1757 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1758 additionally. The mpu_port option is for VIA686 chips only.
1760 The power-management is supported.
1762 Module snd-via82xx-modem
1763 ------------------------
1765 Module for VIA82xx AC97 modem
1767 ac97_clock - AC'97 codec clock base (default 48000Hz)
1769 This module supports one card and autoprobe.
1771 Note: The default index value of this module is -2, i.e. the first
1774 The power-management is supported.
1779 Module for virtual rawmidi devices.
1780 This module creates virtual rawmidi devices which communicate
1781 to the corresponding ALSA sequencer ports.
1783 midi_devs - MIDI devices # (1-4, default=4)
1785 This module supports multiple cards.
1790 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1792 mic - Enable Microphone on V222 Mic (NYI)
1793 ibl - Capture IBL size. (default = 0, minimum size)
1795 This module supports multiple cards.
1797 When the driver is compiled as a module and the hotplug firmware
1798 is supported, the firmware data is loaded via hotplug automatically.
1799 Install the necessary firmware files in alsa-firmware package.
1800 When no hotplug fw loader is available, you need to load the
1801 firmware via vxloader utility in alsa-tools package. To invoke
1802 vxloader automatically, add the following to /etc/modprobe.conf
1804 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1806 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1807 /etc/modules.conf, instead.)
1808 IBL size defines the interrupts period for PCM. The smaller size
1809 gives smaller latency but leads to more CPU consumption, too.
1810 The size is usually aligned to 126. As default (=0), the smallest
1811 size is chosen. The possible IBL values can be found in
1812 /proc/asound/cardX/vx-status proc file.
1814 The power-management is supported.
1819 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1821 ibl - Capture IBL size. (default = 0, minimum size)
1823 This module supports multiple cards. The module is compiled only when
1824 PCMCIA is supported on kernel.
1826 With the older 2.6.x kernel, to activate the driver via the card
1827 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1828 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1829 longer require a config file.
1831 When the driver is compiled as a module and the hotplug firmware
1832 is supported, the firmware data is loaded via hotplug automatically.
1833 Install the necessary firmware files in alsa-firmware package.
1834 When no hotplug fw loader is available, you need to load the
1835 firmware via vxloader utility in alsa-tools package.
1837 About capture IBL, see the description of snd-vx222 module.
1839 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1842 The power-management is supported.
1847 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1849 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1850 1 (auto-detect for YMF744/754 only)
1851 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1852 1 (auto-detect for YMF744/754 only)
1853 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1855 rear_switch - enable shared rear/line-in switch (bool)
1857 This module supports autoprobe and multiple chips.
1859 The power-management is supported.
1861 Module snd-pdaudiocf
1862 --------------------
1864 Module for Sound Core PDAudioCF sound card.
1866 The power-management is supported.
1872 The ac97_quirk option is used to enable/override the workaround for
1873 specific devices on drivers for on-board AC'97 controllers like
1874 snd-intel8x0. Some hardware have swapped output pins between Master
1875 and Headphone, or Surround (thanks to confusion of AC'97
1876 specifications from version to version :-)
1878 The driver provides the auto-detection of known problematic devices,
1879 but some might be unknown or wrongly detected. In such a case, pass
1880 the proper value with this option.
1882 The following strings are accepted:
1883 - default Don't override the default setting
1884 - none Disable the quirk
1885 - hp_only Bind Master and Headphone controls as a single control
1886 - swap_hp Swap headphone and master controls
1887 - swap_surround Swap master and surround controls
1888 - ad_sharing For AD1985, turn on OMS bit and use headphone
1889 - alc_jack For ALC65x, turn on the jack sense mode
1890 - inv_eapd Inverted EAPD implementation
1891 - mute_led Bind EAPD bit for turning on/off mute LED
1893 For backward compatibility, the corresponding integer value -1, 0,
1894 ... are accepted, too.
1896 For example, if "Master" volume control has no effect on your device
1897 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1900 Configuring Non-ISAPNP Cards
1901 ============================
1903 When the kernel is configured with ISA-PnP support, the modules
1904 supporting the isapnp cards will have module options "isapnp".
1905 If this option is set, *only* the ISA-PnP devices will be probed.
1906 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1907 together with the proper i/o and irq configuration.
1909 When the kernel is configured without ISA-PnP support, isapnp option
1910 will be not built in.
1913 Module Autoloading Support
1914 ==========================
1916 The ALSA drivers can be loaded automatically on demand by defining
1917 module aliases. The string 'snd-card-%1' is requested for ALSA native
1918 devices where %i is sound card number from zero to seven.
1920 To auto-load an ALSA driver for OSS services, define the string
1921 'sound-slot-%i' where %i means the slot number for OSS, which
1922 corresponds to the card index of ALSA. Usually, define this
1923 as the same card module.
1925 An example configuration for a single emu10k1 card is like below:
1926 ----- /etc/modprobe.conf
1927 alias snd-card-0 snd-emu10k1
1928 alias sound-slot-0 snd-emu10k1
1929 ----- /etc/modprobe.conf
1931 The available number of auto-loaded sound cards depends on the module
1932 option "cards_limit" of snd module. As default it's set to 1.
1933 To enable the auto-loading of multiple cards, specify the number of
1934 sound cards in that option.
1936 When multiple cards are available, it'd better to specify the index
1937 number for each card via module option, too, so that the order of
1938 cards is kept consistent.
1940 An example configuration for two sound cards is like below:
1942 ----- /etc/modprobe.conf
1944 options snd cards_limit=2
1945 alias snd-card-0 snd-interwave
1946 alias snd-card-1 snd-ens1371
1947 options snd-interwave index=0
1948 options snd-ens1371 index=1
1950 alias sound-slot-0 snd-interwave
1951 alias sound-slot-1 snd-ens1371
1952 ----- /etc/modprobe.conf
1954 In this example, the interwave card is always loaded as the first card
1955 (index 0) and ens1371 as the second (index 1).
1958 ALSA PCM devices to OSS devices mapping
1959 =======================================
1961 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1962 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1963 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1964 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1965 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1966 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1967 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1968 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1969 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1971 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1972 sound card number and second means device number. The ALSA devices
1973 have either 'c' or 'p' suffix indicating the direction, capture and
1974 playback, respectively.
1976 Please note that the device mapping above may be varied via the module
1977 options of snd-pcm-oss module.
1980 Proc interfaces (/proc/asound)
1981 ==============================
1983 /proc/asound/card#/pcm#[cp]/oss
1984 -------------------------------
1985 String "erase" - erase all additional informations about OSS applications
1986 String "<app_name> <fragments> <fragment_size> [<options>]"
1988 <app_name> - name of application with (higher priority) or without path
1989 <fragments> - number of fragments or zero if auto
1990 <fragment_size> - size of fragment in bytes or zero if auto
1991 <options> - optional parameters
1992 - disable the application tries to open a pcm device for
1993 this channel but does not want to use it.
1994 (Cause a bug or mmap needs)
1995 It's good for Quake etc...
1996 - direct don't use plugins
1997 - block force block mode (rvplayer)
1998 - non-block force non-block mode
1999 - whole-frag write only whole fragments (optimization affecting
2001 - no-silence do not fill silence ahead to avoid clicks
2002 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2003 instead of filled blocks
2005 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2006 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2007 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2010 Early Buffer Allocation
2011 =======================
2013 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2014 sometimes it's too late to find such spaces when the driver module is
2015 actually loaded due to memory fragmentation. You can pre-allocate the
2016 PCM buffers by loading snd-page-alloc module and write commands to its
2017 proc file in prior, for example, in the early boot stage like
2018 /etc/init.d/*.local scripts.
2020 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2021 usage of page allocation. In writing, you can send the following
2022 commands to the snd-page-alloc driver:
2024 - add VENDOR DEVICE MASK SIZE BUFFERS
2026 VENDOR and DEVICE are PCI vendor and device IDs. They take
2027 integer numbers (0x prefix is needed for the hex).
2028 MASK is the PCI DMA mask. Pass 0 if not restricted.
2029 SIZE is the size of each buffer to allocate. You can pass
2030 k and m suffix for KB and MB. The max number is 16MB.
2031 BUFFERS is the number of buffers to allocate. It must be greater
2032 than 0. The max number is 4.
2036 This will erase the all pre-allocated buffers which are not in
2043 ALSA project homepage
2044 http://www.alsa-project.org
2046 ALSA Bug Tracking System
2047 https://bugtrack.alsa-project.org/bugs/
2050 mailto:alsa-devel@lists.sourceforge.net