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
825 auto auto-config reading BIOS (default)
828 3stack-dig 3-jack with SPDIF I/O
829 6stack-dig 6-jack digital with SPDIF I/O
830 3stack-6ch 3-jack 6-channel
831 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
832 6stack-dig-demo 6-jack digital for Intel demo board
833 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
834 medion Medion Laptops
836 targa-2ch-dig Targs/MSI with 2-channel
837 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
838 auto auto-config reading BIOS (default)
842 3stack-dig 3-jack with SPDIF I/O
843 6stack-dig 6-jack with SPDIF I/O
844 3stack-660 3-jack (for ALC660)
845 uniwill-m31 Uniwill M31 laptop
846 toshiba Toshiba laptop support
847 asus Asus laptop support
848 asus-laptop ASUS F2/F3 laptops
849 auto auto-config reading BIOS (default)
853 3stack-dig 3-jack with SPDIF OUT
854 6stack-dig 6-jack with SPDIF OUT
855 3stack-660 3-jack (for ALC660VD)
856 lenovo Lenovo 3000 C200
857 auto auto-config reading BIOS (default)
860 minimal 3-jack in back
861 min_fp 3-jack in back, 2-jack in front
862 full 6-jack in back, 2-jack in front
863 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
864 allout 5-jack in back, 2-jack in front, SPDIF out
865 auto auto-config reading BIOS (default)
868 basic 3-jack (default)
870 thinkpad Lenovo Thinkpad T60/X60/Z60
874 6stack 6-jack, separate surrounds (default)
875 3stack 3-stack, shared surrounds
876 laptop 2-channel only (FSC V2060, Samsung M50)
877 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
878 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
882 6stack-dig ditto with SPDIF
884 3stack-dig ditto with SPDIF
885 laptop 3-jack with hp-jack automute
886 laptop-dig ditto with SPDIF
887 auto auto-config reading BIOS (default)
891 test for testing/debugging purpose, almost all controls
892 can be adjusted. Appearing only when compiled with
896 laptop Basic Laptop config
897 laptop-hp Laptop config for some HP models (subdevice 30A5)
898 laptop-eapd Laptop config with EAPD support
899 test for testing/debugging purpose, almost all controls
900 can be adjusted. Appearing only when compiled with
909 5stack D945 5stack + SPDIF
910 macmini Intel Mac Mini
911 macbook Intel Mac Book
912 macbook-pro-v1 Intel Mac Book Pro 1st generation
913 macbook-pro Intel Mac Book Pro 2nd generation
914 imac-intel Intel iMac
917 ref Reference board, base config
918 m2-2 Some Gateway MX series laptops
919 m6 Some Gateway NX series laptops
921 STAC9227/9228/9229/927x
924 5stack D965 5stack + SPDIF
927 vaio Setup for VAIO FE550G/SZ110
928 vaio-ar Setup for VAIO AR
930 The model name "genric" is treated as a special case. When this
931 model is given, the driver uses the generic codec parser without
932 "codec-patch". It's sometimes good for testing and debugging.
934 If the default configuration doesn't work and one of the above
935 matches with your device, report it together with the PCI
936 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
937 ML (see the section "Links and Addresses").
939 Note 2: If you get click noises on output, try the module option
940 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
941 register value without FIFO size correction as the current
942 DMA pointer. position_fix=2 will make the driver to use
943 the position buffer instead of reading SD_LPIB register.
944 (Usually SD_LPLIB register is more accurate than the
947 NB: If you get many "azx_get_response timeout" messages at
948 loading, it's likely a problem of interrupts (e.g. ACPI irq
949 routing). Try to boot with options like "pci=noacpi". Also, you
950 can try "single_cmd=1" module option. This will switch the
951 communication method between HDA controller and codecs to the
952 single immediate commands instead of CORB/RIRB. Basically, the
953 single command mode is provided only for BIOS, and you won't get
954 unsolicited events, too. But, at least, this works independently
955 from the irq. Remember this is a last resort, and should be
956 avoided as much as possible...
958 The power-management is supported.
963 Module for RME Hammerfall DSP audio interface(s)
965 This module supports multiple cards.
967 Note: The firmware data can be automatically loaded via hotplug
968 when CONFIG_FW_LOADER is set. Otherwise, you need to load
969 the firmware via hdsploader utility included in alsa-tools
971 The firmware data is found in alsa-firmware package.
973 Note: snd-page-alloc module does the job which snd-hammerfall-mem
974 module did formerly. It will allocate the buffers in advance
975 when any HDSP cards are found. To make the buffer
976 allocation sure, load snd-page-alloc module in the early
977 stage of boot sequence. See "Early Buffer Allocation"
983 Module for RME HDSP MADI board.
985 precise_ptr - Enable precise pointer, or disable.
986 line_outs_monitor - Send playback streams to analog outs by default.
987 enable_monitor - Enable Analog Out on Channel 63/64 by default.
989 See hdspm.txt for details.
994 Module for Envy24 (ICE1712) based PCI sound cards.
995 * MidiMan M Audio Delta 1010
996 * MidiMan M Audio Delta 1010LT
997 * MidiMan M Audio Delta DiO 2496
998 * MidiMan M Audio Delta 66
999 * MidiMan M Audio Delta 44
1000 * MidiMan M Audio Delta 410
1001 * MidiMan M Audio Audiophile 2496
1004 * TerraTec EWX 24/96
1005 * TerraTec DMX 6Fire
1007 * Hoontech SoundTrack DSP 24
1008 * Hoontech SoundTrack DSP 24 Value
1009 * Hoontech SoundTrack DSP 24 Media 7.1
1010 * Event Electronics, EZ8
1012 * Lionstracs, Mediastaton
1014 model - Use the given board model, one of the following:
1015 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1016 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1017 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1018 phase88, mediastation
1019 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1020 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1021 in msec resolution, default value is 500 (0.5 sec)
1023 This module supports multiple cards and autoprobe. Note: The consumer part
1024 is not used with all Envy24 based cards (for example in the MidiMan Delta
1027 Note: The supported board is detected by reading EEPROM or PCI
1028 SSID (if EEPROM isn't available). You can override the
1029 model by passing "model" module option in case that the
1030 driver isn't configured properly or you want to try another
1036 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1037 * MidiMan M Audio Revolution 5.1
1038 * MidiMan M Audio Revolution 7.1
1039 * MidiMan M Audio Audiophile 192
1041 * TerraTec Aureon 5.1 Sky
1042 * TerraTec Aureon 7.1 Space
1043 * TerraTec Aureon 7.1 Universe
1046 * AudioTrak Prodigy 7.1
1047 * AudioTrak Prodigy 7.1LT
1048 * AudioTrak Prodigy 192
1050 * Albatron K8X800 Pro II
1051 * Chaintech ZNF3-150
1052 * Chaintech ZNF3-250
1057 model - Use the given board model, one of the following:
1058 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1059 prodigy192, aureon51, aureon71, universe, ap192,
1060 k8x800, phase22, phase28, ms300, av710
1062 This module supports multiple cards and autoprobe.
1064 Note: The supported board is detected by reading EEPROM or PCI
1065 SSID (if EEPROM isn't available). You can override the
1066 model by passing "model" module option in case that the
1067 driver isn't configured properly or you want to try another
1073 Module for Echoaudio Indigo
1075 This module supports multiple cards.
1076 The driver requires the firmware loader support on kernel.
1081 Module for Echoaudio Indigo DJ
1083 This module supports multiple cards.
1084 The driver requires the firmware loader support on kernel.
1089 Module for Echoaudio Indigo IO
1091 This module supports multiple cards.
1092 The driver requires the firmware loader support on kernel.
1097 Module for AC'97 motherboards from Intel and compatibles.
1098 * Intel i810/810E, i815, i820, i830, i84x, MX440
1099 ICH5, ICH6, ICH7, ESB2
1100 * SiS 7012 (SiS 735)
1101 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1103 * AMD AMD768, AMD8111
1106 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1107 ac97_quirk - AC'97 workaround for strange hardware
1108 See "AC97 Quirk Option" section below.
1109 buggy_irq - Enable workaround for buggy interrupts on some
1110 motherboards (default yes on nForce chips,
1112 buggy_semaphore - Enable workaround for hardwares with buggy
1113 semaphores (e.g. on some ASUS laptops)
1115 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1116 from the controller chip
1117 (0 = off, 1 = on, -1 = default)
1119 This module supports one chip and autoprobe.
1121 Note: the latest driver supports auto-detection of chip clock.
1122 if you still encounter too fast playback, specify the clock
1123 explicitly via the module option "ac97_clock=41194".
1125 Joystick/MIDI ports are not supported by this driver. If your
1126 motherboard has these devices, use the ns558 or snd-mpu401
1127 modules, respectively.
1129 The power-management is supported.
1131 Module snd-intel8x0m
1132 --------------------
1134 Module for Intel ICH (i8x0) chipset MC97 modems.
1135 * Intel i810/810E, i815, i820, i830, i84x, MX440
1137 * SiS 7013 (SiS 735)
1138 * NVidia NForce, NForce2, NForce2s, NForce3
1142 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1144 This module supports one card and autoprobe.
1146 Note: The default index value of this module is -2, i.e. the first
1149 The power-management is supported.
1151 Module snd-interwave
1152 --------------------
1154 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1155 and other sound cards based on AMD InterWave (tm) chip.
1157 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1158 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1159 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1160 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1161 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1162 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1163 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1164 effect - 1 = InterWave effects enable (default 0);
1167 This module supports multiple cards, autoprobe and ISA PnP.
1169 Module snd-interwave-stb
1170 ------------------------
1172 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1173 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1174 circuit for extended control of bass, treble and master volume.
1176 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1177 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1178 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1179 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1180 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1181 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1182 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1183 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1184 effect - 1 = InterWave effects enable (default 0);
1187 This module supports multiple cards, autoprobe and ISA PnP.
1192 Module for Korg 1212 IO PCI card
1194 This module supports multiple cards.
1199 Module for Echoaudio Layla20
1201 This module supports multiple cards.
1202 The driver requires the firmware loader support on kernel.
1207 Module for Echoaudio Layla24
1209 This module supports multiple cards.
1210 The driver requires the firmware loader support on kernel.
1215 Module for Allegro/Maestro3 chips
1217 external_amp - enable external amp (enabled by default)
1218 amp_gpio - GPIO pin number for external amp (0-15) or
1219 -1 for default pin (8 for allegro, 1 for
1222 This module supports autoprobe and multiple chips.
1224 Note: the binding of amplifier is dependent on hardware.
1225 If there is no sound even though all channels are unmuted, try to
1226 specify other gpio connection via amp_gpio option.
1227 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1230 The power-management is supported.
1235 Module for Echoaudio Mia
1237 This module supports multiple cards.
1238 The driver requires the firmware loader support on kernel.
1243 Module for Miro soundcards: miroSOUND PCM 1 pro,
1245 miroSOUND PCM 20 Radio.
1247 port - Port # (0x530,0x604,0xe80,0xf40)
1248 irq - IRQ # (5,7,9,10,11)
1249 dma1 - 1st dma # (0,1,3)
1250 dma2 - 2nd dma # (0,1)
1251 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1252 mpu_irq - MPU-401 irq # (5,7,9,10)
1253 fm_port - FM Port # (0x388)
1254 wss - enable WSS mode
1255 ide - enable onboard ide support
1260 Module for Digigram miXart8 sound cards.
1262 This module supports multiple cards.
1263 Note: One miXart8 board will be represented as 4 alsa cards.
1264 See MIXART.txt for details.
1266 When the driver is compiled as a module and the hotplug firmware
1267 is supported, the firmware data is loaded via hotplug automatically.
1268 Install the necessary firmware files in alsa-firmware package.
1269 When no hotplug fw loader is available, you need to load the
1270 firmware via mixartloader utility in alsa-tools package.
1275 Module for Echoaudio Mona
1277 This module supports multiple cards.
1278 The driver requires the firmware loader support on kernel.
1283 Module for MPU-401 UART devices.
1285 port - port number or -1 (disable)
1286 irq - IRQ number or -1 (disable)
1287 pnp - PnP detection - 0 = disable, 1 = enable (default)
1288 uart_enter - Issue UART_ENTER command at open - bool, default = on
1290 This module supports multiple devices and PnP.
1295 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1298 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1299 irq - IRQ # for MTPAV (7,5, default=7)
1300 hwports - number of supported hardware ports, default=8.
1302 Module supports only 1 card. This module has no enable option.
1307 Module for Ego Systems (ESI) Miditerminal 4140
1309 This module supports multiple devices.
1310 Requires parport (CONFIG_PARPORT).
1315 Module for NeoMagic NM256AV/ZX chips
1317 playback_bufsize - max playback frame size in kB (4-128kB)
1318 capture_bufsize - max capture frame size in kB (4-128kB)
1319 force_ac97 - 0 or 1 (disabled by default)
1320 buffer_top - specify buffer top address
1321 use_cache - 0 or 1 (disabled by default)
1322 vaio_hack - alias buffer_top=0x25a800
1323 reset_workaround - enable AC97 RESET workaround for some laptops
1324 reset_workaround2 - enable extended AC97 RESET workaround for some
1327 This module supports one chip and autoprobe.
1329 The power-management is supported.
1331 Note: on some notebooks the buffer address cannot be detected
1332 automatically, or causes hang-up during initialization.
1333 In such a case, specify the buffer top address explicitly via
1334 the buffer_top option.
1336 Sony F250: buffer_top=0x25a800
1337 Sony F270: buffer_top=0x272800
1338 The driver supports only ac97 codec. It's possible to force
1339 to initialize/use ac97 although it's not detected. In such a
1340 case, use force_ac97=1 option - but *NO* guarantee whether it
1343 Note: The NM256 chip can be linked internally with non-AC97
1344 codecs. This driver supports only the AC97 codec, and won't work
1345 with machines with other (most likely CS423x or OPL3SAx) chips,
1346 even though the device is detected in lspci. In such a case, try
1347 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1348 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1349 and proper hardware parameters in the case without ISA PnP.
1351 Note: some laptops need a workaround for AC97 RESET. For the
1352 known hardware like Dell Latitude LS and Sony PCG-F305, this
1353 workaround is enabled automatically. For other laptops with a
1354 hard freeze, you can try reset_workaround=1 option.
1356 Note: Dell Latitude CSx laptops have another problem regarding
1357 AC97 RESET. On these laptops, reset_workaround2 option is
1358 turned on as default. This option is worth to try if the
1359 previous reset_workaround option doesn't help.
1361 Note: This driver is really crappy. It's a porting from the
1362 OSS driver, which is a result of black-magic reverse engineering.
1363 The detection of codec will fail if the driver is loaded *after*
1364 X-server as described above. You might be able to force to load
1365 the module, but it may result in hang-up. Hence, make sure that
1366 you load this module *before* X if you encounter this kind of
1372 Module for Yamaha OPL3-SA2/SA3 sound cards.
1374 port - control port # for OPL3-SA chip (0x370)
1375 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1376 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1377 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1378 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1379 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1380 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1381 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1382 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1384 This module supports multiple cards and ISA PnP. It does not support
1385 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1387 The power-management is supported.
1389 Module snd-opti92x-ad1848
1390 -------------------------
1392 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1393 Module works with OAK Mozart cards as well.
1395 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1396 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1397 fm_port - port # for OPL3 device (0x388)
1398 irq - IRQ # for WSS chip (5,7,9,10,11)
1399 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1400 dma1 - first DMA # for WSS chip (0,1,3)
1402 This module supports only one card, autoprobe and PnP.
1404 Module snd-opti92x-cs4231
1405 -------------------------
1407 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1409 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1410 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1411 fm_port - port # for OPL3 device (0x388)
1412 irq - IRQ # for WSS chip (5,7,9,10,11)
1413 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1414 dma1 - first DMA # for WSS chip (0,1,3)
1415 dma2 - second DMA # for WSS chip (0,1,3)
1417 This module supports only one card, autoprobe and PnP.
1422 Module for sound cards based on OPTi 82c93x chips.
1424 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1425 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1426 fm_port - port # for OPL3 device (0x388)
1427 irq - IRQ # for WSS chip (5,7,9,10,11)
1428 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1429 dma1 - first DMA # for WSS chip (0,1,3)
1430 dma2 - second DMA # for WSS chip (0,1,3)
1432 This module supports only one card, autoprobe and PnP.
1437 Module for Digigram PCXHR boards
1439 This module supports multiple cards.
1441 Module snd-portman2x4
1442 ---------------------
1444 Module for Midiman Portman 2x4 parallel port MIDI interface
1446 This module supports multiple cards.
1448 Module snd-powermac (on ppc only)
1449 ---------------------------------
1451 Module for PowerMac, iMac and iBook on-board soundchips
1453 enable_beep - enable beep using PCM (enabled as default)
1455 Module supports autoprobe a chip.
1457 Note: the driver may have problems regarding endianess.
1459 The power-management is supported.
1461 Module snd-pxa2xx-ac97 (on arm only)
1462 ------------------------------------
1464 Module for AC97 driver for the Intel PXA2xx chip
1466 For ARM architecture only.
1468 The power-management is supported.
1473 Module for Conexant Riptide chip
1475 joystick_port - Joystick port # (default: 0x200)
1476 mpu_port - MPU401 port # (default: 0x330)
1477 opl3_port - OPL3 port # (default: 0x388)
1479 This module supports multiple cards.
1480 The driver requires the firmware loader support on kernel.
1481 You need to install the firmware file "riptide.hex" to the standard
1482 firmware path (e.g. /lib/firmware).
1487 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1488 Prodif96 and Prodif Gold) sound cards.
1490 This module supports multiple cards.
1495 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1497 This module supports multiple cards.
1502 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1504 precise_ptr - Enable precise pointer (doesn't work reliably).
1507 This module supports multiple cards.
1509 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1510 module did formerly. It will allocate the buffers in advance
1511 when any RME9652 cards are found. To make the buffer
1512 allocation sure, load snd-page-alloc module in the early
1513 stage of boot sequence. See "Early Buffer Allocation"
1516 Module snd-sa11xx-uda1341 (on arm only)
1517 ---------------------------------------
1519 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1521 Module supports only one card.
1522 Module has no enable and index options.
1524 The power-management is supported.
1529 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1533 port - port # for SB DSP chip (0x220,0x240,0x260)
1534 irq - IRQ # for SB DSP chip (5,7,9,10)
1535 dma8 - DMA # for SB DSP chip (1,3)
1537 This module supports multiple cards and autoprobe.
1539 The power-management is supported.
1541 Module snd-sb16 and snd-sbawe
1542 -----------------------------
1544 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1545 SoundBlaster AWE 32 (PnP),
1546 SoundBlaster AWE 64 PnP
1548 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1549 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1550 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1551 (snd-sbawe module only)
1552 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1553 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1554 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1555 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1556 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1557 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1559 This module supports multiple cards, autoprobe and ISA PnP.
1561 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1562 disable 16bit DMA with dma16 = -1 module parameter.
1563 Also, all Sound Blaster 16 type cards can operate in 16-bit
1564 half duplex mode through 8-bit DMA channel by disabling their
1567 The power-management is supported.
1572 Module for Aztech Sound Galaxy sound card.
1574 sbport - Port # for SB16 interface (0x220,0x240)
1575 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1576 irq - IRQ # (7,9,10,11)
1579 This module supports multiple cards.
1581 The power-management is supported.
1586 Module for ENSONIQ SoundScape PnP cards.
1588 port - Port # (PnP setup)
1589 irq - IRQ # (PnP setup)
1590 mpu_irq - MPU-401 IRQ # (PnP setup)
1591 dma - DMA # (PnP setup)
1593 This module supports multiple cards. ISA PnP must be enabled.
1594 You need sscape_ctl tool in alsa-tools package for loading
1597 Module snd-sun-amd7930 (on sparc only)
1598 --------------------------------------
1600 Module for AMD7930 sound chips found on Sparcs.
1602 This module supports multiple cards.
1604 Module snd-sun-cs4231 (on sparc only)
1605 -------------------------------------
1607 Module for CS4231 sound chips found on Sparcs.
1609 This module supports multiple cards.
1611 Module snd-sun-dbri (on sparc only)
1612 -----------------------------------
1614 Module for DBRI sound chips found on Sparcs.
1616 This module supports multiple cards.
1618 Module snd-wavefront
1619 --------------------
1621 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1623 cs4232_pcm_port - Port # for CS4232 PCM interface.
1624 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1625 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1626 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1627 use_cs4232_midi - Use CS4232 MPU-401 interface
1628 (inaccessibly located inside your computer)
1629 ics2115_port - Port # for ICS2115
1630 ics2115_irq - IRQ # for ICS2115
1631 fm_port - FM OPL-3 Port #
1632 dma1 - DMA1 # for CS4232 PCM interface.
1633 dma2 - DMA2 # for CS4232 PCM interface.
1634 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1636 This module supports multiple cards and ISA PnP.
1638 Module snd-sonicvibes
1639 ---------------------
1641 Module for S3 SonicVibes PCI sound cards.
1642 * PINE Schubert 32 PCI
1644 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1645 - SoundCard must have onboard SRAM for this.
1646 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1648 This module supports multiple cards and autoprobe.
1650 Module snd-serial-u16550
1651 ------------------------
1653 Module for UART16550A serial MIDI ports.
1655 port - port # for UART16550A chip
1656 irq - IRQ # for UART16550A chip, -1 = poll mode
1657 speed - speed in bauds (9600,19200,38400,57600,115200)
1659 base - base for divisor in bauds (57600,115200,230400,460800)
1661 outs - number of MIDI ports in a serial port (1-4)
1663 adaptor - Type of adaptor.
1664 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1665 3 = MS-124W M/B, 4 = Generic
1667 This module supports multiple cards. This module does not support autoprobe
1668 thus the main port must be specified!!! Other options are optional.
1673 Module for Trident 4DWave DX/NX sound cards.
1674 * Best Union Miss Melody 4DWave PCI
1676 * Warpspeed ONSpeed 4DWave PCI
1679 * CHIC True Sound 4Dwave
1680 * Shark Predator4D-PCI
1681 * Jaton SonicWave 4D
1683 pcm_channels - max channels (voices) reserved for PCM
1684 wavetable_size - max wavetable size in kB (4-?kb)
1686 This module supports multiple cards and autoprobe.
1688 The power-management is supported.
1690 Module snd-usb-audio
1691 --------------------
1693 Module for USB audio and USB MIDI devices.
1695 vid - Vendor ID for the device (optional)
1696 pid - Product ID for the device (optional)
1697 device_setup - Device specific magic number (optional)
1698 - Influence depends on the device
1701 This module supports multiple devices, autoprobe and hotplugging.
1703 Module snd-usb-caiaq
1704 --------------------
1706 Module for caiaq UB audio interfaces,
1707 * Native Instruments RigKontrol2
1708 * Native Instruments Kore Controller
1709 * Native Instruments Audio Kontrol 1
1710 * Native Instruments Audio 8 DJ
1712 This module supports multiple devices, autoprobe and hotplugging.
1714 Module snd-usb-usx2y
1715 --------------------
1717 Module for Tascam USB US-122, US-224 and US-428 devices.
1719 This module supports multiple devices, autoprobe and hotplugging.
1721 Note: you need to load the firmware via usx2yloader utility included
1722 in alsa-tools and alsa-firmware packages.
1727 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1728 8233A, 8233C, 8235, 8237 (south) bridge.
1730 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1732 joystick - Enable joystick (default off) [VIA686A/686B only]
1733 ac97_clock - AC'97 codec clock base (default 48000Hz)
1734 dxs_support - support DXS channels,
1735 0 = auto (default), 1 = enable, 2 = disable,
1736 3 = 48k only, 4 = no VRA, 5 = enable any sample
1737 rate and different sample rates on different
1739 [VIA8233/C, 8235, 8237 only]
1740 ac97_quirk - AC'97 workaround for strange hardware
1741 See "AC97 Quirk Option" section below.
1743 This module supports one chip and autoprobe.
1745 Note: on some SMP motherboards like MSI 694D the interrupts might
1746 not be generated properly. In such a case, please try to
1747 set the SMP (or MPS) version on BIOS to 1.1 instead of
1748 default value 1.4. Then the interrupt number will be
1749 assigned under 15. You might also upgrade your BIOS.
1751 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1752 channels as the first PCM. On these channels, up to 4
1753 streams can be played at the same time, and the controller
1754 can perform sample rate conversion with separate rates for
1756 As default (dxs_support = 0), 48k fixed rate is chosen
1757 except for the known devices since the output is often
1758 noisy except for 48k on some mother boards due to the
1760 Please try once dxs_support=5 and if it works on other
1761 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1762 know the PCI subsystem vendor/device id's (output of
1764 If dxs_support=5 does not work, try dxs_support=4; if it
1765 doesn't work too, try dxs_support=1. (dxs_support=1 is
1766 usually for old motherboards. The correct implemented
1767 board should work with 4 or 5.) If it still doesn't
1768 work and the default setting is ok, dxs_support=3 is the
1769 right choice. If the default setting doesn't work at all,
1770 try dxs_support=2 to disable the DXS channels.
1771 In any cases, please let us know the result and the
1772 subsystem vendor/device ids. See "Links and Addresses"
1775 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1776 additionally. The mpu_port option is for VIA686 chips only.
1778 The power-management is supported.
1780 Module snd-via82xx-modem
1781 ------------------------
1783 Module for VIA82xx AC97 modem
1785 ac97_clock - AC'97 codec clock base (default 48000Hz)
1787 This module supports one card and autoprobe.
1789 Note: The default index value of this module is -2, i.e. the first
1792 The power-management is supported.
1797 Module for virtual rawmidi devices.
1798 This module creates virtual rawmidi devices which communicate
1799 to the corresponding ALSA sequencer ports.
1801 midi_devs - MIDI devices # (1-4, default=4)
1803 This module supports multiple cards.
1808 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1810 mic - Enable Microphone on V222 Mic (NYI)
1811 ibl - Capture IBL size. (default = 0, minimum size)
1813 This module supports multiple cards.
1815 When the driver is compiled as a module and the hotplug firmware
1816 is supported, the firmware data is loaded via hotplug automatically.
1817 Install the necessary firmware files in alsa-firmware package.
1818 When no hotplug fw loader is available, you need to load the
1819 firmware via vxloader utility in alsa-tools package. To invoke
1820 vxloader automatically, add the following to /etc/modprobe.conf
1822 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1824 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1825 /etc/modules.conf, instead.)
1826 IBL size defines the interrupts period for PCM. The smaller size
1827 gives smaller latency but leads to more CPU consumption, too.
1828 The size is usually aligned to 126. As default (=0), the smallest
1829 size is chosen. The possible IBL values can be found in
1830 /proc/asound/cardX/vx-status proc file.
1832 The power-management is supported.
1837 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1839 ibl - Capture IBL size. (default = 0, minimum size)
1841 This module supports multiple cards. The module is compiled only when
1842 PCMCIA is supported on kernel.
1844 With the older 2.6.x kernel, to activate the driver via the card
1845 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1846 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1847 longer require a config file.
1849 When the driver is compiled as a module and the hotplug firmware
1850 is supported, the firmware data is loaded via hotplug automatically.
1851 Install the necessary firmware files in alsa-firmware package.
1852 When no hotplug fw loader is available, you need to load the
1853 firmware via vxloader utility in alsa-tools package.
1855 About capture IBL, see the description of snd-vx222 module.
1857 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1860 The power-management is supported.
1865 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1867 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1868 1 (auto-detect for YMF744/754 only)
1869 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1870 1 (auto-detect for YMF744/754 only)
1871 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1873 rear_switch - enable shared rear/line-in switch (bool)
1875 This module supports autoprobe and multiple chips.
1877 The power-management is supported.
1879 Module snd-pdaudiocf
1880 --------------------
1882 Module for Sound Core PDAudioCF sound card.
1884 The power-management is supported.
1890 The ac97_quirk option is used to enable/override the workaround for
1891 specific devices on drivers for on-board AC'97 controllers like
1892 snd-intel8x0. Some hardware have swapped output pins between Master
1893 and Headphone, or Surround (thanks to confusion of AC'97
1894 specifications from version to version :-)
1896 The driver provides the auto-detection of known problematic devices,
1897 but some might be unknown or wrongly detected. In such a case, pass
1898 the proper value with this option.
1900 The following strings are accepted:
1901 - default Don't override the default setting
1902 - none Disable the quirk
1903 - hp_only Bind Master and Headphone controls as a single control
1904 - swap_hp Swap headphone and master controls
1905 - swap_surround Swap master and surround controls
1906 - ad_sharing For AD1985, turn on OMS bit and use headphone
1907 - alc_jack For ALC65x, turn on the jack sense mode
1908 - inv_eapd Inverted EAPD implementation
1909 - mute_led Bind EAPD bit for turning on/off mute LED
1911 For backward compatibility, the corresponding integer value -1, 0,
1912 ... are accepted, too.
1914 For example, if "Master" volume control has no effect on your device
1915 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1918 Configuring Non-ISAPNP Cards
1919 ============================
1921 When the kernel is configured with ISA-PnP support, the modules
1922 supporting the isapnp cards will have module options "isapnp".
1923 If this option is set, *only* the ISA-PnP devices will be probed.
1924 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1925 together with the proper i/o and irq configuration.
1927 When the kernel is configured without ISA-PnP support, isapnp option
1928 will be not built in.
1931 Module Autoloading Support
1932 ==========================
1934 The ALSA drivers can be loaded automatically on demand by defining
1935 module aliases. The string 'snd-card-%1' is requested for ALSA native
1936 devices where %i is sound card number from zero to seven.
1938 To auto-load an ALSA driver for OSS services, define the string
1939 'sound-slot-%i' where %i means the slot number for OSS, which
1940 corresponds to the card index of ALSA. Usually, define this
1941 as the same card module.
1943 An example configuration for a single emu10k1 card is like below:
1944 ----- /etc/modprobe.conf
1945 alias snd-card-0 snd-emu10k1
1946 alias sound-slot-0 snd-emu10k1
1947 ----- /etc/modprobe.conf
1949 The available number of auto-loaded sound cards depends on the module
1950 option "cards_limit" of snd module. As default it's set to 1.
1951 To enable the auto-loading of multiple cards, specify the number of
1952 sound cards in that option.
1954 When multiple cards are available, it'd better to specify the index
1955 number for each card via module option, too, so that the order of
1956 cards is kept consistent.
1958 An example configuration for two sound cards is like below:
1960 ----- /etc/modprobe.conf
1962 options snd cards_limit=2
1963 alias snd-card-0 snd-interwave
1964 alias snd-card-1 snd-ens1371
1965 options snd-interwave index=0
1966 options snd-ens1371 index=1
1968 alias sound-slot-0 snd-interwave
1969 alias sound-slot-1 snd-ens1371
1970 ----- /etc/modprobe.conf
1972 In this example, the interwave card is always loaded as the first card
1973 (index 0) and ens1371 as the second (index 1).
1976 ALSA PCM devices to OSS devices mapping
1977 =======================================
1979 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1980 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1981 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1982 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1983 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1984 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1985 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1986 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1987 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1989 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1990 sound card number and second means device number. The ALSA devices
1991 have either 'c' or 'p' suffix indicating the direction, capture and
1992 playback, respectively.
1994 Please note that the device mapping above may be varied via the module
1995 options of snd-pcm-oss module.
1998 Proc interfaces (/proc/asound)
1999 ==============================
2001 /proc/asound/card#/pcm#[cp]/oss
2002 -------------------------------
2003 String "erase" - erase all additional informations about OSS applications
2004 String "<app_name> <fragments> <fragment_size> [<options>]"
2006 <app_name> - name of application with (higher priority) or without path
2007 <fragments> - number of fragments or zero if auto
2008 <fragment_size> - size of fragment in bytes or zero if auto
2009 <options> - optional parameters
2010 - disable the application tries to open a pcm device for
2011 this channel but does not want to use it.
2012 (Cause a bug or mmap needs)
2013 It's good for Quake etc...
2014 - direct don't use plugins
2015 - block force block mode (rvplayer)
2016 - non-block force non-block mode
2017 - whole-frag write only whole fragments (optimization affecting
2019 - no-silence do not fill silence ahead to avoid clicks
2020 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2021 instead of filled blocks
2023 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2024 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2025 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2028 Early Buffer Allocation
2029 =======================
2031 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2032 sometimes it's too late to find such spaces when the driver module is
2033 actually loaded due to memory fragmentation. You can pre-allocate the
2034 PCM buffers by loading snd-page-alloc module and write commands to its
2035 proc file in prior, for example, in the early boot stage like
2036 /etc/init.d/*.local scripts.
2038 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2039 usage of page allocation. In writing, you can send the following
2040 commands to the snd-page-alloc driver:
2042 - add VENDOR DEVICE MASK SIZE BUFFERS
2044 VENDOR and DEVICE are PCI vendor and device IDs. They take
2045 integer numbers (0x prefix is needed for the hex).
2046 MASK is the PCI DMA mask. Pass 0 if not restricted.
2047 SIZE is the size of each buffer to allocate. You can pass
2048 k and m suffix for KB and MB. The max number is 16MB.
2049 BUFFERS is the number of buffers to allocate. It must be greater
2050 than 0. The max number is 4.
2054 This will erase the all pre-allocated buffers which are not in
2061 ALSA project homepage
2062 http://www.alsa-project.org
2064 ALSA Bug Tracking System
2065 https://bugtrack.alsa-project.org/bugs/
2068 mailto:alsa-devel@alsa-project.org
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