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 (default), 0 = disable (default)
374 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
376 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
378 This module supports autoprobe and multiple cards.
380 The power-management is supported.
385 Module for sound cards based on CS4231 ISA chips.
387 port - port # for CS4231 chip
388 mpu_port - port # for MPU-401 UART (optional), -1 = disable
389 irq - IRQ # for CS4231 chip
390 mpu_irq - IRQ # for MPU-401 UART
391 dma1 - first DMA # for CS4231 chip
392 dma2 - second DMA # for CS4231 chip
394 This module supports multiple cards. This module does not support autoprobe
395 thus main port must be specified!!! Other ports are optional.
397 The power-management is supported.
402 Module for sound cards based on CS4232/CS4232A ISA chips.
404 port - port # for CS4232 chip (PnP setup - 0x534)
405 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
406 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
407 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
408 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
409 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
410 dma1 - first DMA # for CS4232 chip (0,1,3)
411 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
412 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
414 This module supports multiple cards. This module does not support autoprobe
415 thus main port must be specified!!! Other ports are optional.
417 The power-management is supported.
422 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
423 CS4238B/CS4239 ISA chips.
425 port - port # for CS4236 chip (PnP setup - 0x534)
426 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
427 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
428 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
429 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
430 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
431 dma1 - first DMA # for CS4236 chip (0,1,3)
432 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
433 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
435 This module supports multiple cards. This module does not support autoprobe
436 (if ISA PnP is not used) thus main port and control port must be
437 specified!!! Other ports are optional.
439 The power-management is supported.
444 Module for Cirrus Logic CS4281 soundchip.
446 dual_codec - Secondary codec ID (0 = disable, default)
448 This module supports multiple cards.
450 The power-management is supported.
455 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
456 CS4624/CS4630/CS4280 PCI chips.
458 external_amp - Force to enable external amplifier.
459 thinkpad - Force to enable Thinkpad's CLKRUN control.
460 mmap_valid - Support OSS mmap mode (default = 0).
462 This module supports multiple cards and autoprobe.
463 Usually external amp and CLKRUN controls are detected automatically
464 from PCI sub vendor/device ids. If they don't work, give the options
467 The power-management is supported.
469 Module snd-cs5535audio
470 ----------------------
472 Module for multifunction CS5535 companion PCI device
474 The power-management is supported.
479 Module for Echoaudio Darla20
481 This module supports multiple cards.
482 The driver requires the firmware loader support on kernel.
487 Module for Echoaudio Darla24
489 This module supports multiple cards.
490 The driver requires the firmware loader support on kernel.
495 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
498 port - Port # (PnP setup)
499 mpu_port - Port # for MPU-401 (PnP setup)
500 fm_port - Port # for FM OPL-3 (PnP setup)
501 irq - IRQ # (PnP setup)
502 mpu_irq - IRQ # for MPU-401 (PnP setup)
503 dma8 - DMA # (PnP setup)
505 This module supports multiple cards. This module is enabled only with
508 The power-management is supported.
513 Module for the dummy sound card. This "card" doesn't do any output
514 or input, but you may use this module for any application which
515 requires a sound card (like RealPlayer).
517 The power-management is supported.
522 Module for Echoaudio 3G cards (Gina3G/Layla3G)
524 This module supports multiple cards.
525 The driver requires the firmware loader support on kernel.
530 Module for EMU10K1/EMU10k2 based PCI sound cards.
531 * Sound Blaster Live!
532 * Sound Blaster PCI 512
533 * Emu APS (partially supported)
534 * Sound Blaster Audigy
536 extin - bitmap of available external inputs for FX8010 (see bellow)
537 extout - bitmap of available external outputs for FX8010 (see bellow)
538 seq_ports - allocated sequencer ports (4 by default)
539 max_synth_voices - limit of voices used for wavetable (64 by default)
540 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
541 given in MB unit. Default value is 128.
542 enable_ir - enable IR
544 This module supports multiple cards and autoprobe.
546 Input & Output configurations [extin/extout]
547 * Creative Card wo/Digital out [0x0003/0x1f03]
548 * Creative Card w/Digital out [0x0003/0x1f0f]
549 * Creative Card w/Digital CD in [0x000f/0x1f0f]
550 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
551 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
552 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
553 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
554 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
555 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
556 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
557 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
558 * Creative Card all ins and outs [0x3fff/0x7fff]
560 The power-management is supported.
565 Module for Creative Emu10k1X (SB Live Dell OEM version)
567 This module supports multiple cards.
572 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
573 * SoundBlaster PCI 64
574 * SoundBlaster PCI 128
576 joystick - Enable joystick (default off)
578 This module supports multiple cards and autoprobe.
580 The power-management is supported.
585 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
586 * SoundBlaster PCI 64
587 * SoundBlaster PCI 128
588 * SoundBlaster Vibra PCI
590 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
591 0 = disable (default), 1 = auto-detect
593 This module supports multiple cards and autoprobe.
595 The power-management is supported.
600 Module for sound cards based on ESS ES968 chip (PnP only).
602 port - port # for ES968 (SB8) chip (PnP setup)
603 irq - IRQ # for ES968 (SB8) chip (PnP setup)
604 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
606 This module supports multiple cards, PnP and autoprobe.
608 The power-management is supported.
613 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
615 port - port # for ES-1688 chip (0x220,0x240,0x260)
616 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
617 irq - IRQ # for ES-1688 chip (5,7,9,10)
618 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
619 dma8 - DMA # for ES-1688 chip (0,1,3)
621 This module supports multiple cards and autoprobe (without MPU-401 port).
626 Module for ESS AudioDrive ES-18xx sound cards.
628 port - port # for ES-18xx chip (0x220,0x240,0x260)
629 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
630 fm_port - port # for FM (optional, not used)
631 irq - IRQ # for ES-18xx chip (5,7,9,10)
632 dma1 - first DMA # for ES-18xx chip (0,1,3)
633 dma2 - first DMA # for ES-18xx chip (0,1,3)
634 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
636 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
637 port if native ISA PnP routines are not used).
638 When dma2 is equal with dma1, the driver works as half-duplex.
640 The power-management is supported.
645 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
647 This module supports multiple cards and autoprobe.
649 The power-management is supported.
654 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
656 total_bufsize - total buffer size in kB (1-4096kB)
657 pcm_substreams_p - playback channels (1-8, default=2)
658 pcm_substreams_c - capture channels (1-8, default=0)
659 clock - clock (0 = auto-detection)
660 use_pm - support the power-management (0 = off, 1 = on,
662 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
663 joystick - enable joystick (default off)
665 This module supports multiple cards and autoprobe.
667 The power-management is supported.
672 Module for ForteMedia FM801 based PCI sound cards.
674 tea575x_tuner - Enable TEA575x tuner
675 - 1 = MediaForte 256-PCS
676 - 2 = MediaForte 256-PCPR
677 - 3 = MediaForte 64-PCR
678 - High 16-bits are video (radio) device number + 1
679 - example: 0x10002 (MediaForte 256-PCPR, device 1)
681 This module supports multiple cards and autoprobe.
683 The power-management is supported.
688 Module for Echoaudio Gina20
690 This module supports multiple cards.
691 The driver requires the firmware loader support on kernel.
696 Module for Echoaudio Gina24
698 This module supports multiple cards.
699 The driver requires the firmware loader support on kernel.
701 Module snd-gusclassic
702 ---------------------
704 Module for Gravis UltraSound Classic sound card.
706 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
707 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
708 dma1 - DMA # for GF1 chip (1,3,5,6,7)
709 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
710 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
711 voices - GF1 voices limit (14-32)
712 pcm_voices - reserved PCM voices
714 This module supports multiple cards and autoprobe.
716 Module snd-gusextreme
717 ---------------------
719 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
721 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
722 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
723 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
724 irq - IRQ # for ES-1688 chip (5,7,9,10)
725 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
726 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
727 dma8 - DMA # for ES-1688 chip (0,1,3)
728 dma1 - DMA # for GF1 chip (1,3,5,6,7)
729 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
730 voices - GF1 voices limit (14-32)
731 pcm_voices - reserved PCM voices
733 This module supports multiple cards and autoprobe (without MPU-401 port).
738 Module for Gravis UltraSound MAX sound card.
740 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
741 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
742 dma1 - DMA # for GF1 chip (1,3,5,6,7)
743 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
744 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
745 voices - GF1 voices limit (14-32)
746 pcm_voices - reserved PCM voices
748 This module supports multiple cards and autoprobe.
753 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
754 ATI SB450, SB600, RS600,
758 model - force the model name
759 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
760 single_cmd - Use single immediate commands to communicate with
761 codecs (for debugging only)
762 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
764 This module supports one card and autoprobe.
766 Each codec may have a model table for different configurations.
767 If your machine isn't listed there, the default (usually minimal)
768 configuration is set up. You can pass "model=<name>" option to
769 specify a certain model in such a case. There are different
770 models depending on the codec chip.
772 Model name Description
773 ---------- -----------
775 3stack 3-jack in back and a headphone out
776 3stack-digout 3-jack in back, a HP out and a SPDIF out
777 5stack 5-jack in back, 2-jack in front
778 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
779 6stack 6-jack in back, 2-jack in front
780 6stack-digout 6-jack with a SPDIF out
782 z71v 3-jack (HP shared SPDIF)
783 asus 3-jack (ASUS Mobo)
785 asus-dig ASUS with SPDIF out
786 asus-dig2 ASUS with SPDIF out (using GPIO2)
788 fujitsu Fujitsu Laptops (Pi1536)
790 lg LG laptop (m1 express dual)
791 lg-lw LG LW20/LW25 laptop
793 clevo Clevo laptops (m520G, m665n)
794 test for testing/debugging purpose, almost all controls can be
795 adjusted. Appearing only when compiled with
797 auto auto-config reading BIOS (default)
801 hp-3013 HP machines (3013-variant)
802 fujitsu Fujitsu S7020
804 basic fixed pin assignment (old default model)
805 auto auto-config reading BIOS (default)
808 fujitsu Fujitsu Laptop
809 hp-bpc HP xw4400/6400/8400/9400 laptops
810 hp-bpc-d7000 HP BPC D7000
812 hippo Hippo (ATI) with jack detection, Sony UX-90s
813 hippo_1 Hippo (Benq) with jack detection
814 basic fixed pin assignment w/o SPDIF
815 auto auto-config reading BIOS (default)
818 3stack-dig 3-jack with SPDIF I/O
819 6stack-dig 6-jack digital with SPDIF I/O
821 macpro MacPro support
822 auto auto-config reading BIOS (default)
825 3stack-dig 3-jack with SPDIF I/O
826 6stack-dig 6-jack digital with SPDIF I/O
827 3stack-6ch 3-jack 6-channel
828 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
829 6stack-dig-demo 6-jack digital for Intel demo board
830 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
831 medion Medion Laptops
833 targa-2ch-dig Targs/MSI with 2-channel
834 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
835 auto auto-config reading BIOS (default)
839 3stack-dig 3-jack with SPDIF I/O
840 6stack-dig 6-jack with SPDIF I/O
841 3stack-660 3-jack (for ALC660)
842 uniwill-m31 Uniwill M31 laptop
843 toshiba Toshiba laptop support
844 asus Asus laptop support
845 asus-laptop ASUS F2/F3 laptops
846 auto auto-config reading BIOS (default)
850 3stack-dig 3-jack with SPDIF OUT
851 6stack-dig 6-jack with SPDIF OUT
852 3stack-660 3-jack (for ALC660VD)
853 auto auto-config reading BIOS (default)
856 minimal 3-jack in back
857 min_fp 3-jack in back, 2-jack in front
858 full 6-jack in back, 2-jack in front
859 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
860 allout 5-jack in back, 2-jack in front, SPDIF out
861 auto auto-config reading BIOS (default)
864 basic 3-jack (default)
866 thinkpad Lenovo Thinkpad T60/X60/Z60
869 6stack 6-jack, separate surrounds (default)
870 3stack 3-stack, shared surrounds
871 laptop 2-channel only (FSC V2060, Samsung M50)
872 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
873 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
877 6stack-dig ditto with SPDIF
879 3stack-dig ditto with SPDIF
880 laptop 3-jack with hp-jack automute
881 laptop-dig ditto with SPDIF
882 auto auto-config reading BIOS (default)
886 test for testing/debugging purpose, almost all controls
887 can be adjusted. Appearing only when compiled with
891 laptop Basic Laptop config
892 laptop-hp Laptop config for some HP models (subdevice 30A5)
893 laptop-eapd Laptop config with EAPD support
894 test for testing/debugging purpose, almost all controls
895 can be adjusted. Appearing only when compiled with
898 STAC9200/9205/9220/9221/9254
901 5stack D945 5stack + SPDIF
904 ref Reference board, base config
905 m2-2 Some Gateway MX series laptops
906 m6 Some Gateway NX series laptops
908 STAC9227/9228/9229/927x
911 5stack D965 5stack + SPDIF
914 vaio Setup for VAIO FE550G/SZ110
915 vaio-ar Setup for VAIO AR
917 If the default configuration doesn't work and one of the above
918 matches with your device, report it together with the PCI
919 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
920 ML (see the section "Links and Addresses").
922 Note 2: If you get click noises on output, try the module option
923 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
924 register value without FIFO size correction as the current
925 DMA pointer. position_fix=2 will make the driver to use
926 the position buffer instead of reading SD_LPIB register.
927 (Usually SD_LPLIB register is more accurate than the
930 NB: If you get many "azx_get_response timeout" messages at
931 loading, it's likely a problem of interrupts (e.g. ACPI irq
932 routing). Try to boot with options like "pci=noacpi". Also, you
933 can try "single_cmd=1" module option. This will switch the
934 communication method between HDA controller and codecs to the
935 single immediate commands instead of CORB/RIRB. Basically, the
936 single command mode is provided only for BIOS, and you won't get
937 unsolicited events, too. But, at least, this works independently
938 from the irq. Remember this is a last resort, and should be
939 avoided as much as possible...
941 The power-management is supported.
946 Module for RME Hammerfall DSP audio interface(s)
948 This module supports multiple cards.
950 Note: The firmware data can be automatically loaded via hotplug
951 when CONFIG_FW_LOADER is set. Otherwise, you need to load
952 the firmware via hdsploader utility included in alsa-tools
954 The firmware data is found in alsa-firmware package.
956 Note: snd-page-alloc module does the job which snd-hammerfall-mem
957 module did formerly. It will allocate the buffers in advance
958 when any HDSP cards are found. To make the buffer
959 allocation sure, load snd-page-alloc module in the early
960 stage of boot sequence. See "Early Buffer Allocation"
966 Module for RME HDSP MADI board.
968 precise_ptr - Enable precise pointer, or disable.
969 line_outs_monitor - Send playback streams to analog outs by default.
970 enable_monitor - Enable Analog Out on Channel 63/64 by default.
972 See hdspm.txt for details.
977 Module for Envy24 (ICE1712) based PCI sound cards.
978 * MidiMan M Audio Delta 1010
979 * MidiMan M Audio Delta 1010LT
980 * MidiMan M Audio Delta DiO 2496
981 * MidiMan M Audio Delta 66
982 * MidiMan M Audio Delta 44
983 * MidiMan M Audio Delta 410
984 * MidiMan M Audio Audiophile 2496
990 * Hoontech SoundTrack DSP 24
991 * Hoontech SoundTrack DSP 24 Value
992 * Hoontech SoundTrack DSP 24 Media 7.1
993 * Event Electronics, EZ8
995 * Lionstracs, Mediastaton
997 model - Use the given board model, one of the following:
998 delta1010, dio2496, delta66, delta44, audiophile, delta410,
999 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1000 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1001 phase88, mediastation
1002 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1003 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1004 in msec resolution, default value is 500 (0.5 sec)
1006 This module supports multiple cards and autoprobe. Note: The consumer part
1007 is not used with all Envy24 based cards (for example in the MidiMan Delta
1010 Note: The supported board is detected by reading EEPROM or PCI
1011 SSID (if EEPROM isn't available). You can override the
1012 model by passing "model" module option in case that the
1013 driver isn't configured properly or you want to try another
1019 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1020 * MidiMan M Audio Revolution 5.1
1021 * MidiMan M Audio Revolution 7.1
1022 * MidiMan M Audio Audiophile 192
1024 * TerraTec Aureon 5.1 Sky
1025 * TerraTec Aureon 7.1 Space
1026 * TerraTec Aureon 7.1 Universe
1029 * AudioTrak Prodigy 7.1
1030 * AudioTrak Prodigy 7.1LT
1031 * AudioTrak Prodigy 192
1033 * Albatron K8X800 Pro II
1034 * Chaintech ZNF3-150
1035 * Chaintech ZNF3-250
1040 model - Use the given board model, one of the following:
1041 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1042 prodigy192, aureon51, aureon71, universe, ap192,
1043 k8x800, phase22, phase28, ms300, av710
1045 This module supports multiple cards and autoprobe.
1047 Note: The supported board is detected by reading EEPROM or PCI
1048 SSID (if EEPROM isn't available). You can override the
1049 model by passing "model" module option in case that the
1050 driver isn't configured properly or you want to try another
1056 Module for Echoaudio Indigo
1058 This module supports multiple cards.
1059 The driver requires the firmware loader support on kernel.
1064 Module for Echoaudio Indigo DJ
1066 This module supports multiple cards.
1067 The driver requires the firmware loader support on kernel.
1072 Module for Echoaudio Indigo IO
1074 This module supports multiple cards.
1075 The driver requires the firmware loader support on kernel.
1080 Module for AC'97 motherboards from Intel and compatibles.
1081 * Intel i810/810E, i815, i820, i830, i84x, MX440
1082 ICH5, ICH6, ICH7, ESB2
1083 * SiS 7012 (SiS 735)
1084 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1086 * AMD AMD768, AMD8111
1089 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1090 ac97_quirk - AC'97 workaround for strange hardware
1091 See "AC97 Quirk Option" section below.
1092 buggy_irq - Enable workaround for buggy interrupts on some
1093 motherboards (default yes on nForce chips,
1095 buggy_semaphore - Enable workaround for hardwares with buggy
1096 semaphores (e.g. on some ASUS laptops)
1098 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1099 from the controller chip
1100 (0 = off, 1 = on, -1 = default)
1102 This module supports one chip and autoprobe.
1104 Note: the latest driver supports auto-detection of chip clock.
1105 if you still encounter too fast playback, specify the clock
1106 explicitly via the module option "ac97_clock=41194".
1108 Joystick/MIDI ports are not supported by this driver. If your
1109 motherboard has these devices, use the ns558 or snd-mpu401
1110 modules, respectively.
1112 The power-management is supported.
1114 Module snd-intel8x0m
1115 --------------------
1117 Module for Intel ICH (i8x0) chipset MC97 modems.
1118 * Intel i810/810E, i815, i820, i830, i84x, MX440
1120 * SiS 7013 (SiS 735)
1121 * NVidia NForce, NForce2, NForce2s, NForce3
1125 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1127 This module supports one card and autoprobe.
1129 Note: The default index value of this module is -2, i.e. the first
1132 The power-management is supported.
1134 Module snd-interwave
1135 --------------------
1137 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1138 and other sound cards based on AMD InterWave (tm) chip.
1140 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1141 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1142 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1143 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1144 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1145 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1146 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1147 effect - 1 = InterWave effects enable (default 0);
1150 This module supports multiple cards, autoprobe and ISA PnP.
1152 Module snd-interwave-stb
1153 ------------------------
1155 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1156 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1157 circuit for extended control of bass, treble and master volume.
1159 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1160 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1161 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1162 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1163 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1164 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1165 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1166 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1167 effect - 1 = InterWave effects enable (default 0);
1170 This module supports multiple cards, autoprobe and ISA PnP.
1175 Module for Korg 1212 IO PCI card
1177 This module supports multiple cards.
1182 Module for Echoaudio Layla20
1184 This module supports multiple cards.
1185 The driver requires the firmware loader support on kernel.
1190 Module for Echoaudio Layla24
1192 This module supports multiple cards.
1193 The driver requires the firmware loader support on kernel.
1198 Module for Allegro/Maestro3 chips
1200 external_amp - enable external amp (enabled by default)
1201 amp_gpio - GPIO pin number for external amp (0-15) or
1202 -1 for default pin (8 for allegro, 1 for
1205 This module supports autoprobe and multiple chips.
1207 Note: the binding of amplifier is dependent on hardware.
1208 If there is no sound even though all channels are unmuted, try to
1209 specify other gpio connection via amp_gpio option.
1210 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1213 The power-management is supported.
1218 Module for Echoaudio Mia
1220 This module supports multiple cards.
1221 The driver requires the firmware loader support on kernel.
1226 Module for Miro soundcards: miroSOUND PCM 1 pro,
1228 miroSOUND PCM 20 Radio.
1230 port - Port # (0x530,0x604,0xe80,0xf40)
1231 irq - IRQ # (5,7,9,10,11)
1232 dma1 - 1st dma # (0,1,3)
1233 dma2 - 2nd dma # (0,1)
1234 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1235 mpu_irq - MPU-401 irq # (5,7,9,10)
1236 fm_port - FM Port # (0x388)
1237 wss - enable WSS mode
1238 ide - enable onboard ide support
1243 Module for Digigram miXart8 sound cards.
1245 This module supports multiple cards.
1246 Note: One miXart8 board will be represented as 4 alsa cards.
1247 See MIXART.txt for details.
1249 When the driver is compiled as a module and the hotplug firmware
1250 is supported, the firmware data is loaded via hotplug automatically.
1251 Install the necessary firmware files in alsa-firmware package.
1252 When no hotplug fw loader is available, you need to load the
1253 firmware via mixartloader utility in alsa-tools package.
1258 Module for Echoaudio Mona
1260 This module supports multiple cards.
1261 The driver requires the firmware loader support on kernel.
1266 Module for MPU-401 UART devices.
1268 port - port number or -1 (disable)
1269 irq - IRQ number or -1 (disable)
1270 pnp - PnP detection - 0 = disable, 1 = enable (default)
1272 This module supports multiple devices and PnP.
1277 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1280 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1281 irq - IRQ # for MTPAV (7,5, default=7)
1282 hwports - number of supported hardware ports, default=8.
1284 Module supports only 1 card. This module has no enable option.
1289 Module for Ego Systems (ESI) Miditerminal 4140
1291 This module supports multiple devices.
1292 Requires parport (CONFIG_PARPORT).
1297 Module for NeoMagic NM256AV/ZX chips
1299 playback_bufsize - max playback frame size in kB (4-128kB)
1300 capture_bufsize - max capture frame size in kB (4-128kB)
1301 force_ac97 - 0 or 1 (disabled by default)
1302 buffer_top - specify buffer top address
1303 use_cache - 0 or 1 (disabled by default)
1304 vaio_hack - alias buffer_top=0x25a800
1305 reset_workaround - enable AC97 RESET workaround for some laptops
1306 reset_workaround2 - enable extended AC97 RESET workaround for some
1309 This module supports one chip and autoprobe.
1311 The power-management is supported.
1313 Note: on some notebooks the buffer address cannot be detected
1314 automatically, or causes hang-up during initialization.
1315 In such a case, specify the buffer top address explicitly via
1316 the buffer_top option.
1318 Sony F250: buffer_top=0x25a800
1319 Sony F270: buffer_top=0x272800
1320 The driver supports only ac97 codec. It's possible to force
1321 to initialize/use ac97 although it's not detected. In such a
1322 case, use force_ac97=1 option - but *NO* guarantee whether it
1325 Note: The NM256 chip can be linked internally with non-AC97
1326 codecs. This driver supports only the AC97 codec, and won't work
1327 with machines with other (most likely CS423x or OPL3SAx) chips,
1328 even though the device is detected in lspci. In such a case, try
1329 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1330 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1331 and proper hardware parameters in the case without ISA PnP.
1333 Note: some laptops need a workaround for AC97 RESET. For the
1334 known hardware like Dell Latitude LS and Sony PCG-F305, this
1335 workaround is enabled automatically. For other laptops with a
1336 hard freeze, you can try reset_workaround=1 option.
1338 Note: Dell Latitude CSx laptops have another problem regarding
1339 AC97 RESET. On these laptops, reset_workaround2 option is
1340 turned on as default. This option is worth to try if the
1341 previous reset_workaround option doesn't help.
1343 Note: This driver is really crappy. It's a porting from the
1344 OSS driver, which is a result of black-magic reverse engineering.
1345 The detection of codec will fail if the driver is loaded *after*
1346 X-server as described above. You might be able to force to load
1347 the module, but it may result in hang-up. Hence, make sure that
1348 you load this module *before* X if you encounter this kind of
1354 Module for Yamaha OPL3-SA2/SA3 sound cards.
1356 port - control port # for OPL3-SA chip (0x370)
1357 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1358 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1359 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1360 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1361 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1362 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1363 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1364 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1366 This module supports multiple cards and ISA PnP. It does not support
1367 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1369 The power-management is supported.
1371 Module snd-opti92x-ad1848
1372 -------------------------
1374 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1375 Module works with OAK Mozart cards as well.
1377 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1378 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1379 fm_port - port # for OPL3 device (0x388)
1380 irq - IRQ # for WSS chip (5,7,9,10,11)
1381 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1382 dma1 - first DMA # for WSS chip (0,1,3)
1384 This module supports only one card, autoprobe and PnP.
1386 Module snd-opti92x-cs4231
1387 -------------------------
1389 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1391 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1392 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1393 fm_port - port # for OPL3 device (0x388)
1394 irq - IRQ # for WSS chip (5,7,9,10,11)
1395 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1396 dma1 - first DMA # for WSS chip (0,1,3)
1397 dma2 - second DMA # for WSS chip (0,1,3)
1399 This module supports only one card, autoprobe and PnP.
1404 Module for sound cards based on OPTi 82c93x chips.
1406 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1407 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1408 fm_port - port # for OPL3 device (0x388)
1409 irq - IRQ # for WSS chip (5,7,9,10,11)
1410 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1411 dma1 - first DMA # for WSS chip (0,1,3)
1412 dma2 - second DMA # for WSS chip (0,1,3)
1414 This module supports only one card, autoprobe and PnP.
1419 Module for Digigram PCXHR boards
1421 This module supports multiple cards.
1423 Module snd-portman2x4
1424 ---------------------
1426 Module for Midiman Portman 2x4 parallel port MIDI interface
1428 This module supports multiple cards.
1430 Module snd-powermac (on ppc only)
1431 ---------------------------------
1433 Module for PowerMac, iMac and iBook on-board soundchips
1435 enable_beep - enable beep using PCM (enabled as default)
1437 Module supports autoprobe a chip.
1439 Note: the driver may have problems regarding endianess.
1441 The power-management is supported.
1443 Module snd-pxa2xx-ac97 (on arm only)
1444 ------------------------------------
1446 Module for AC97 driver for the Intel PXA2xx chip
1448 For ARM architecture only.
1450 The power-management is supported.
1455 Module for Conexant Riptide chip
1457 joystick_port - Joystick port # (default: 0x200)
1458 mpu_port - MPU401 port # (default: 0x330)
1459 opl3_port - OPL3 port # (default: 0x388)
1461 This module supports multiple cards.
1462 The driver requires the firmware loader support on kernel.
1463 You need to install the firmware file "riptide.hex" to the standard
1464 firmware path (e.g. /lib/firmware).
1469 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1470 Prodif96 and Prodif Gold) sound cards.
1472 This module supports multiple cards.
1477 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1479 This module supports multiple cards.
1484 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1486 precise_ptr - Enable precise pointer (doesn't work reliably).
1489 This module supports multiple cards.
1491 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1492 module did formerly. It will allocate the buffers in advance
1493 when any RME9652 cards are found. To make the buffer
1494 allocation sure, load snd-page-alloc module in the early
1495 stage of boot sequence. See "Early Buffer Allocation"
1498 Module snd-sa11xx-uda1341 (on arm only)
1499 ---------------------------------------
1501 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1503 Module supports only one card.
1504 Module has no enable and index options.
1506 The power-management is supported.
1511 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1515 port - port # for SB DSP chip (0x220,0x240,0x260)
1516 irq - IRQ # for SB DSP chip (5,7,9,10)
1517 dma8 - DMA # for SB DSP chip (1,3)
1519 This module supports multiple cards and autoprobe.
1521 The power-management is supported.
1523 Module snd-sb16 and snd-sbawe
1524 -----------------------------
1526 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1527 SoundBlaster AWE 32 (PnP),
1528 SoundBlaster AWE 64 PnP
1530 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1531 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1532 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1533 (snd-sbawe module only)
1534 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1535 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1536 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1537 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1538 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1539 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1541 This module supports multiple cards, autoprobe and ISA PnP.
1543 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1544 disable 16bit DMA with dma16 = -1 module parameter.
1545 Also, all Sound Blaster 16 type cards can operate in 16-bit
1546 half duplex mode through 8-bit DMA channel by disabling their
1549 The power-management is supported.
1554 Module for Aztech Sound Galaxy sound card.
1556 sbport - Port # for SB16 interface (0x220,0x240)
1557 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1558 irq - IRQ # (7,9,10,11)
1561 This module supports multiple cards.
1563 The power-management is supported.
1568 Module for ENSONIQ SoundScape PnP cards.
1570 port - Port # (PnP setup)
1571 irq - IRQ # (PnP setup)
1572 mpu_irq - MPU-401 IRQ # (PnP setup)
1573 dma - DMA # (PnP setup)
1575 This module supports multiple cards. ISA PnP must be enabled.
1576 You need sscape_ctl tool in alsa-tools package for loading
1579 Module snd-sun-amd7930 (on sparc only)
1580 --------------------------------------
1582 Module for AMD7930 sound chips found on Sparcs.
1584 This module supports multiple cards.
1586 Module snd-sun-cs4231 (on sparc only)
1587 -------------------------------------
1589 Module for CS4231 sound chips found on Sparcs.
1591 This module supports multiple cards.
1593 Module snd-sun-dbri (on sparc only)
1594 -----------------------------------
1596 Module for DBRI sound chips found on Sparcs.
1598 This module supports multiple cards.
1600 Module snd-wavefront
1601 --------------------
1603 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1605 cs4232_pcm_port - Port # for CS4232 PCM interface.
1606 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1607 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1608 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1609 use_cs4232_midi - Use CS4232 MPU-401 interface
1610 (inaccessibly located inside your computer)
1611 ics2115_port - Port # for ICS2115
1612 ics2115_irq - IRQ # for ICS2115
1613 fm_port - FM OPL-3 Port #
1614 dma1 - DMA1 # for CS4232 PCM interface.
1615 dma2 - DMA2 # for CS4232 PCM interface.
1616 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1618 This module supports multiple cards and ISA PnP.
1620 Module snd-sonicvibes
1621 ---------------------
1623 Module for S3 SonicVibes PCI sound cards.
1624 * PINE Schubert 32 PCI
1626 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1627 - SoundCard must have onboard SRAM for this.
1628 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1630 This module supports multiple cards and autoprobe.
1632 Module snd-serial-u16550
1633 ------------------------
1635 Module for UART16550A serial MIDI ports.
1637 port - port # for UART16550A chip
1638 irq - IRQ # for UART16550A chip, -1 = poll mode
1639 speed - speed in bauds (9600,19200,38400,57600,115200)
1641 base - base for divisor in bauds (57600,115200,230400,460800)
1643 outs - number of MIDI ports in a serial port (1-4)
1645 adaptor - Type of adaptor.
1646 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1647 3 = MS-124W M/B, 4 = Generic
1649 This module supports multiple cards. This module does not support autoprobe
1650 thus the main port must be specified!!! Other options are optional.
1655 Module for Trident 4DWave DX/NX sound cards.
1656 * Best Union Miss Melody 4DWave PCI
1658 * Warpspeed ONSpeed 4DWave PCI
1661 * CHIC True Sound 4Dwave
1662 * Shark Predator4D-PCI
1663 * Jaton SonicWave 4D
1665 pcm_channels - max channels (voices) reserved for PCM
1666 wavetable_size - max wavetable size in kB (4-?kb)
1668 This module supports multiple cards and autoprobe.
1670 The power-management is supported.
1672 Module snd-usb-audio
1673 --------------------
1675 Module for USB audio and USB MIDI devices.
1677 vid - Vendor ID for the device (optional)
1678 pid - Product ID for the device (optional)
1679 device_setup - Device specific magic number (optional)
1680 - Influence depends on the device
1683 This module supports multiple devices, autoprobe and hotplugging.
1685 Module snd-usb-usx2y
1686 --------------------
1688 Module for Tascam USB US-122, US-224 and US-428 devices.
1690 This module supports multiple devices, autoprobe and hotplugging.
1692 Note: you need to load the firmware via usx2yloader utility included
1693 in alsa-tools and alsa-firmware packages.
1698 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1699 8233A, 8233C, 8235, 8237 (south) bridge.
1701 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1703 joystick - Enable joystick (default off) [VIA686A/686B only]
1704 ac97_clock - AC'97 codec clock base (default 48000Hz)
1705 dxs_support - support DXS channels,
1706 0 = auto (default), 1 = enable, 2 = disable,
1707 3 = 48k only, 4 = no VRA, 5 = enable any sample
1708 rate and different sample rates on different
1710 [VIA8233/C, 8235, 8237 only]
1711 ac97_quirk - AC'97 workaround for strange hardware
1712 See "AC97 Quirk Option" section below.
1714 This module supports one chip and autoprobe.
1716 Note: on some SMP motherboards like MSI 694D the interrupts might
1717 not be generated properly. In such a case, please try to
1718 set the SMP (or MPS) version on BIOS to 1.1 instead of
1719 default value 1.4. Then the interrupt number will be
1720 assigned under 15. You might also upgrade your BIOS.
1722 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1723 channels as the first PCM. On these channels, up to 4
1724 streams can be played at the same time, and the controller
1725 can perform sample rate conversion with separate rates for
1727 As default (dxs_support = 0), 48k fixed rate is chosen
1728 except for the known devices since the output is often
1729 noisy except for 48k on some mother boards due to the
1731 Please try once dxs_support=5 and if it works on other
1732 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1733 know the PCI subsystem vendor/device id's (output of
1735 If dxs_support=5 does not work, try dxs_support=4; if it
1736 doesn't work too, try dxs_support=1. (dxs_support=1 is
1737 usually for old motherboards. The correct implemented
1738 board should work with 4 or 5.) If it still doesn't
1739 work and the default setting is ok, dxs_support=3 is the
1740 right choice. If the default setting doesn't work at all,
1741 try dxs_support=2 to disable the DXS channels.
1742 In any cases, please let us know the result and the
1743 subsystem vendor/device ids. See "Links and Addresses"
1746 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1747 additionally. The mpu_port option is for VIA686 chips only.
1749 The power-management is supported.
1751 Module snd-via82xx-modem
1752 ------------------------
1754 Module for VIA82xx AC97 modem
1756 ac97_clock - AC'97 codec clock base (default 48000Hz)
1758 This module supports one card and autoprobe.
1760 Note: The default index value of this module is -2, i.e. the first
1763 The power-management is supported.
1768 Module for virtual rawmidi devices.
1769 This module creates virtual rawmidi devices which communicate
1770 to the corresponding ALSA sequencer ports.
1772 midi_devs - MIDI devices # (1-4, default=4)
1774 This module supports multiple cards.
1779 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1781 mic - Enable Microphone on V222 Mic (NYI)
1782 ibl - Capture IBL size. (default = 0, minimum size)
1784 This module supports multiple cards.
1786 When the driver is compiled as a module and the hotplug firmware
1787 is supported, the firmware data is loaded via hotplug automatically.
1788 Install the necessary firmware files in alsa-firmware package.
1789 When no hotplug fw loader is available, you need to load the
1790 firmware via vxloader utility in alsa-tools package. To invoke
1791 vxloader automatically, add the following to /etc/modprobe.conf
1793 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1795 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1796 /etc/modules.conf, instead.)
1797 IBL size defines the interrupts period for PCM. The smaller size
1798 gives smaller latency but leads to more CPU consumption, too.
1799 The size is usually aligned to 126. As default (=0), the smallest
1800 size is chosen. The possible IBL values can be found in
1801 /proc/asound/cardX/vx-status proc file.
1803 The power-management is supported.
1808 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1810 ibl - Capture IBL size. (default = 0, minimum size)
1812 This module supports multiple cards. The module is compiled only when
1813 PCMCIA is supported on kernel.
1815 With the older 2.6.x kernel, to activate the driver via the card
1816 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1817 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1818 longer require a config file.
1820 When the driver is compiled as a module and the hotplug firmware
1821 is supported, the firmware data is loaded via hotplug automatically.
1822 Install the necessary firmware files in alsa-firmware package.
1823 When no hotplug fw loader is available, you need to load the
1824 firmware via vxloader utility in alsa-tools package.
1826 About capture IBL, see the description of snd-vx222 module.
1828 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1831 The power-management is supported.
1836 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1838 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1839 1 (auto-detect for YMF744/754 only)
1840 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1841 1 (auto-detect for YMF744/754 only)
1842 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1844 rear_switch - enable shared rear/line-in switch (bool)
1846 This module supports autoprobe and multiple chips.
1848 The power-management is supported.
1850 Module snd-pdaudiocf
1851 --------------------
1853 Module for Sound Core PDAudioCF sound card.
1855 The power-management is supported.
1861 The ac97_quirk option is used to enable/override the workaround for
1862 specific devices on drivers for on-board AC'97 controllers like
1863 snd-intel8x0. Some hardware have swapped output pins between Master
1864 and Headphone, or Surround (thanks to confusion of AC'97
1865 specifications from version to version :-)
1867 The driver provides the auto-detection of known problematic devices,
1868 but some might be unknown or wrongly detected. In such a case, pass
1869 the proper value with this option.
1871 The following strings are accepted:
1872 - default Don't override the default setting
1873 - none Disable the quirk
1874 - hp_only Bind Master and Headphone controls as a single control
1875 - swap_hp Swap headphone and master controls
1876 - swap_surround Swap master and surround controls
1877 - ad_sharing For AD1985, turn on OMS bit and use headphone
1878 - alc_jack For ALC65x, turn on the jack sense mode
1879 - inv_eapd Inverted EAPD implementation
1880 - mute_led Bind EAPD bit for turning on/off mute LED
1882 For backward compatibility, the corresponding integer value -1, 0,
1883 ... are accepted, too.
1885 For example, if "Master" volume control has no effect on your device
1886 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1889 Configuring Non-ISAPNP Cards
1890 ============================
1892 When the kernel is configured with ISA-PnP support, the modules
1893 supporting the isapnp cards will have module options "isapnp".
1894 If this option is set, *only* the ISA-PnP devices will be probed.
1895 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1896 together with the proper i/o and irq configuration.
1898 When the kernel is configured without ISA-PnP support, isapnp option
1899 will be not built in.
1902 Module Autoloading Support
1903 ==========================
1905 The ALSA drivers can be loaded automatically on demand by defining
1906 module aliases. The string 'snd-card-%1' is requested for ALSA native
1907 devices where %i is sound card number from zero to seven.
1909 To auto-load an ALSA driver for OSS services, define the string
1910 'sound-slot-%i' where %i means the slot number for OSS, which
1911 corresponds to the card index of ALSA. Usually, define this
1912 as the same card module.
1914 An example configuration for a single emu10k1 card is like below:
1915 ----- /etc/modprobe.conf
1916 alias snd-card-0 snd-emu10k1
1917 alias sound-slot-0 snd-emu10k1
1918 ----- /etc/modprobe.conf
1920 The available number of auto-loaded sound cards depends on the module
1921 option "cards_limit" of snd module. As default it's set to 1.
1922 To enable the auto-loading of multiple cards, specify the number of
1923 sound cards in that option.
1925 When multiple cards are available, it'd better to specify the index
1926 number for each card via module option, too, so that the order of
1927 cards is kept consistent.
1929 An example configuration for two sound cards is like below:
1931 ----- /etc/modprobe.conf
1933 options snd cards_limit=2
1934 alias snd-card-0 snd-interwave
1935 alias snd-card-1 snd-ens1371
1936 options snd-interwave index=0
1937 options snd-ens1371 index=1
1939 alias sound-slot-0 snd-interwave
1940 alias sound-slot-1 snd-ens1371
1941 ----- /etc/modprobe.conf
1943 In this example, the interwave card is always loaded as the first card
1944 (index 0) and ens1371 as the second (index 1).
1947 ALSA PCM devices to OSS devices mapping
1948 =======================================
1950 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1951 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1952 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1953 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1954 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1955 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1956 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1957 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1958 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1960 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1961 sound card number and second means device number. The ALSA devices
1962 have either 'c' or 'p' suffix indicating the direction, capture and
1963 playback, respectively.
1965 Please note that the device mapping above may be varied via the module
1966 options of snd-pcm-oss module.
1969 Proc interfaces (/proc/asound)
1970 ==============================
1972 /proc/asound/card#/pcm#[cp]/oss
1973 -------------------------------
1974 String "erase" - erase all additional informations about OSS applications
1975 String "<app_name> <fragments> <fragment_size> [<options>]"
1977 <app_name> - name of application with (higher priority) or without path
1978 <fragments> - number of fragments or zero if auto
1979 <fragment_size> - size of fragment in bytes or zero if auto
1980 <options> - optional parameters
1981 - disable the application tries to open a pcm device for
1982 this channel but does not want to use it.
1983 (Cause a bug or mmap needs)
1984 It's good for Quake etc...
1985 - direct don't use plugins
1986 - block force block mode (rvplayer)
1987 - non-block force non-block mode
1988 - whole-frag write only whole fragments (optimization affecting
1990 - no-silence do not fill silence ahead to avoid clicks
1991 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1992 instead of filled blocks
1994 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1995 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1996 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1999 Early Buffer Allocation
2000 =======================
2002 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2003 sometimes it's too late to find such spaces when the driver module is
2004 actually loaded due to memory fragmentation. You can pre-allocate the
2005 PCM buffers by loading snd-page-alloc module and write commands to its
2006 proc file in prior, for example, in the early boot stage like
2007 /etc/init.d/*.local scripts.
2009 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2010 usage of page allocation. In writing, you can send the following
2011 commands to the snd-page-alloc driver:
2013 - add VENDOR DEVICE MASK SIZE BUFFERS
2015 VENDOR and DEVICE are PCI vendor and device IDs. They take
2016 integer numbers (0x prefix is needed for the hex).
2017 MASK is the PCI DMA mask. Pass 0 if not restricted.
2018 SIZE is the size of each buffer to allocate. You can pass
2019 k and m suffix for KB and MB. The max number is 16MB.
2020 BUFFERS is the number of buffers to allocate. It must be greater
2021 than 0. The max number is 4.
2025 This will erase the all pre-allocated buffers which are not in
2032 ALSA project homepage
2033 http://www.alsa-project.org
2035 ALSA Bug Tracking System
2036 https://bugtrack.alsa-project.org/bugs/
2039 mailto:alsa-devel@lists.sourceforge.net