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)
789 lg LG laptop (m1 express dual)
790 lg-lw LG LW20/LW25 laptop
792 clevo Clevo laptops (m520G, m665n)
793 test for testing/debugging purpose, almost all controls can be
794 adjusted. Appearing only when compiled with
796 auto auto-config reading BIOS (default)
800 hp-3013 HP machines (3013-variant)
801 fujitsu Fujitsu S7020
803 basic fixed pin assignment (old default model)
804 auto auto-config reading BIOS (default)
807 fujitsu Fujitsu Laptop
808 hp-bpc HP xw4400/6400/8400/9400 laptops
809 hp-bpc-d7000 HP BPC D7000
811 hippo Hippo (ATI) with jack detection, Sony UX-90s
812 hippo_1 Hippo (Benq) with jack detection
813 basic fixed pin assignment w/o SPDIF
814 auto auto-config reading BIOS (default)
817 3stack-dig 3-jack with SPDIF I/O
818 6stack-dig 6-jack digital with SPDIF I/O
820 macpro MacPro support
821 auto auto-config reading BIOS (default)
824 3stack-dig 3-jack with SPDIF I/O
825 6stack-dig 6-jack digital with SPDIF I/O
826 3stack-6ch 3-jack 6-channel
827 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
828 6stack-dig-demo 6-jack digital for Intel demo board
829 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
830 medion Medion Laptops
832 targa-2ch-dig Targs/MSI with 2-channel
833 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
834 auto auto-config reading BIOS (default)
838 3stack-dig 3-jack with SPDIF I/O
839 6stack-dig 6-jack with SPDIF I/O
840 3stack-660 3-jack (for ALC660)
841 uniwill-m31 Uniwill M31 laptop
842 toshiba Toshiba laptop support
843 asus Asus laptop support
844 asus-laptop ASUS F2/F3 laptops
845 auto auto-config reading BIOS (default)
849 3stack-dig 3-jack with SPDIF OUT
850 6stack-dig 6-jack with SPDIF OUT
851 3stack-660 3-jack (for ALC660VD)
852 auto auto-config reading BIOS (default)
855 minimal 3-jack in back
856 min_fp 3-jack in back, 2-jack in front
857 full 6-jack in back, 2-jack in front
858 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
859 allout 5-jack in back, 2-jack in front, SPDIF out
860 auto auto-config reading BIOS (default)
863 basic 3-jack (default)
865 thinkpad Lenovo Thinkpad T60/X60/Z60
868 6stack 6-jack, separate surrounds (default)
869 3stack 3-stack, shared surrounds
870 laptop 2-channel only (FSC V2060, Samsung M50)
871 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
872 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
876 6stack-dig ditto with SPDIF
878 3stack-dig ditto with SPDIF
879 laptop 3-jack with hp-jack automute
880 laptop-dig ditto with SPDIF
881 auto auto-config reading BIOS (default)
885 test for testing/debugging purpose, almost all controls
886 can be adjusted. Appearing only when compiled with
890 laptop Basic Laptop config
891 laptop-hp Laptop config for some HP models (subdevice 30A5)
892 laptop-eapd Laptop config with EAPD support
893 test for testing/debugging purpose, almost all controls
894 can be adjusted. Appearing only when compiled with
897 STAC9200/9205/9220/9221/9254
900 5stack D945 5stack + SPDIF
903 ref Reference board, base config
904 m2-2 Some Gateway MX series laptops
905 m6 Some Gateway NX series laptops
907 STAC9227/9228/9229/927x
910 5stack D965 5stack + SPDIF
913 vaio Setup for VAIO FE550G/SZ110
914 vaio-ar Setup for VAIO AR
916 If the default configuration doesn't work and one of the above
917 matches with your device, report it together with the PCI
918 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
919 ML (see the section "Links and Addresses").
921 Note 2: If you get click noises on output, try the module option
922 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
923 register value without FIFO size correction as the current
924 DMA pointer. position_fix=2 will make the driver to use
925 the position buffer instead of reading SD_LPIB register.
926 (Usually SD_LPLIB register is more accurate than the
929 NB: If you get many "azx_get_response timeout" messages at
930 loading, it's likely a problem of interrupts (e.g. ACPI irq
931 routing). Try to boot with options like "pci=noacpi". Also, you
932 can try "single_cmd=1" module option. This will switch the
933 communication method between HDA controller and codecs to the
934 single immediate commands instead of CORB/RIRB. Basically, the
935 single command mode is provided only for BIOS, and you won't get
936 unsolicited events, too. But, at least, this works independently
937 from the irq. Remember this is a last resort, and should be
938 avoided as much as possible...
940 The power-management is supported.
945 Module for RME Hammerfall DSP audio interface(s)
947 This module supports multiple cards.
949 Note: The firmware data can be automatically loaded via hotplug
950 when CONFIG_FW_LOADER is set. Otherwise, you need to load
951 the firmware via hdsploader utility included in alsa-tools
953 The firmware data is found in alsa-firmware package.
955 Note: snd-page-alloc module does the job which snd-hammerfall-mem
956 module did formerly. It will allocate the buffers in advance
957 when any HDSP cards are found. To make the buffer
958 allocation sure, load snd-page-alloc module in the early
959 stage of boot sequence. See "Early Buffer Allocation"
965 Module for RME HDSP MADI board.
967 precise_ptr - Enable precise pointer, or disable.
968 line_outs_monitor - Send playback streams to analog outs by default.
969 enable_monitor - Enable Analog Out on Channel 63/64 by default.
971 See hdspm.txt for details.
976 Module for Envy24 (ICE1712) based PCI sound cards.
977 * MidiMan M Audio Delta 1010
978 * MidiMan M Audio Delta 1010LT
979 * MidiMan M Audio Delta DiO 2496
980 * MidiMan M Audio Delta 66
981 * MidiMan M Audio Delta 44
982 * MidiMan M Audio Delta 410
983 * MidiMan M Audio Audiophile 2496
989 * Hoontech SoundTrack DSP 24
990 * Hoontech SoundTrack DSP 24 Value
991 * Hoontech SoundTrack DSP 24 Media 7.1
992 * Event Electronics, EZ8
994 * Lionstracs, Mediastaton
996 model - Use the given board model, one of the following:
997 delta1010, dio2496, delta66, delta44, audiophile, delta410,
998 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
999 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1000 phase88, mediastation
1001 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1002 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1003 in msec resolution, default value is 500 (0.5 sec)
1005 This module supports multiple cards and autoprobe. Note: The consumer part
1006 is not used with all Envy24 based cards (for example in the MidiMan Delta
1009 Note: The supported board is detected by reading EEPROM or PCI
1010 SSID (if EEPROM isn't available). You can override the
1011 model by passing "model" module option in case that the
1012 driver isn't configured properly or you want to try another
1018 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1019 * MidiMan M Audio Revolution 5.1
1020 * MidiMan M Audio Revolution 7.1
1021 * MidiMan M Audio Audiophile 192
1023 * TerraTec Aureon 5.1 Sky
1024 * TerraTec Aureon 7.1 Space
1025 * TerraTec Aureon 7.1 Universe
1028 * AudioTrak Prodigy 7.1
1029 * AudioTrak Prodigy 7.1LT
1030 * AudioTrak Prodigy 192
1032 * Albatron K8X800 Pro II
1033 * Chaintech ZNF3-150
1034 * Chaintech ZNF3-250
1039 model - Use the given board model, one of the following:
1040 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1041 prodigy192, aureon51, aureon71, universe, ap192,
1042 k8x800, phase22, phase28, ms300, av710
1044 This module supports multiple cards and autoprobe.
1046 Note: The supported board is detected by reading EEPROM or PCI
1047 SSID (if EEPROM isn't available). You can override the
1048 model by passing "model" module option in case that the
1049 driver isn't configured properly or you want to try another
1055 Module for Echoaudio Indigo
1057 This module supports multiple cards.
1058 The driver requires the firmware loader support on kernel.
1063 Module for Echoaudio Indigo DJ
1065 This module supports multiple cards.
1066 The driver requires the firmware loader support on kernel.
1071 Module for Echoaudio Indigo IO
1073 This module supports multiple cards.
1074 The driver requires the firmware loader support on kernel.
1079 Module for AC'97 motherboards from Intel and compatibles.
1080 * Intel i810/810E, i815, i820, i830, i84x, MX440
1081 ICH5, ICH6, ICH7, ESB2
1082 * SiS 7012 (SiS 735)
1083 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1085 * AMD AMD768, AMD8111
1088 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1089 ac97_quirk - AC'97 workaround for strange hardware
1090 See "AC97 Quirk Option" section below.
1091 buggy_irq - Enable workaround for buggy interrupts on some
1092 motherboards (default yes on nForce chips,
1094 buggy_semaphore - Enable workaround for hardwares with buggy
1095 semaphores (e.g. on some ASUS laptops)
1097 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1098 from the controller chip
1099 (0 = off, 1 = on, -1 = default)
1101 This module supports one chip and autoprobe.
1103 Note: the latest driver supports auto-detection of chip clock.
1104 if you still encounter too fast playback, specify the clock
1105 explicitly via the module option "ac97_clock=41194".
1107 Joystick/MIDI ports are not supported by this driver. If your
1108 motherboard has these devices, use the ns558 or snd-mpu401
1109 modules, respectively.
1111 The power-management is supported.
1113 Module snd-intel8x0m
1114 --------------------
1116 Module for Intel ICH (i8x0) chipset MC97 modems.
1117 * Intel i810/810E, i815, i820, i830, i84x, MX440
1119 * SiS 7013 (SiS 735)
1120 * NVidia NForce, NForce2, NForce2s, NForce3
1124 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1126 This module supports one card and autoprobe.
1128 Note: The default index value of this module is -2, i.e. the first
1131 The power-management is supported.
1133 Module snd-interwave
1134 --------------------
1136 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1137 and other sound cards based on AMD InterWave (tm) chip.
1139 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1140 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1141 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1142 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1143 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1144 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1145 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1146 effect - 1 = InterWave effects enable (default 0);
1149 This module supports multiple cards, autoprobe and ISA PnP.
1151 Module snd-interwave-stb
1152 ------------------------
1154 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1155 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1156 circuit for extended control of bass, treble and master volume.
1158 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1159 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1160 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1161 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1162 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1163 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1164 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1165 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1166 effect - 1 = InterWave effects enable (default 0);
1169 This module supports multiple cards, autoprobe and ISA PnP.
1174 Module for Korg 1212 IO PCI card
1176 This module supports multiple cards.
1181 Module for Echoaudio Layla20
1183 This module supports multiple cards.
1184 The driver requires the firmware loader support on kernel.
1189 Module for Echoaudio Layla24
1191 This module supports multiple cards.
1192 The driver requires the firmware loader support on kernel.
1197 Module for Allegro/Maestro3 chips
1199 external_amp - enable external amp (enabled by default)
1200 amp_gpio - GPIO pin number for external amp (0-15) or
1201 -1 for default pin (8 for allegro, 1 for
1204 This module supports autoprobe and multiple chips.
1206 Note: the binding of amplifier is dependent on hardware.
1207 If there is no sound even though all channels are unmuted, try to
1208 specify other gpio connection via amp_gpio option.
1209 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1212 The power-management is supported.
1217 Module for Echoaudio Mia
1219 This module supports multiple cards.
1220 The driver requires the firmware loader support on kernel.
1225 Module for Miro soundcards: miroSOUND PCM 1 pro,
1227 miroSOUND PCM 20 Radio.
1229 port - Port # (0x530,0x604,0xe80,0xf40)
1230 irq - IRQ # (5,7,9,10,11)
1231 dma1 - 1st dma # (0,1,3)
1232 dma2 - 2nd dma # (0,1)
1233 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1234 mpu_irq - MPU-401 irq # (5,7,9,10)
1235 fm_port - FM Port # (0x388)
1236 wss - enable WSS mode
1237 ide - enable onboard ide support
1242 Module for Digigram miXart8 sound cards.
1244 This module supports multiple cards.
1245 Note: One miXart8 board will be represented as 4 alsa cards.
1246 See MIXART.txt for details.
1248 When the driver is compiled as a module and the hotplug firmware
1249 is supported, the firmware data is loaded via hotplug automatically.
1250 Install the necessary firmware files in alsa-firmware package.
1251 When no hotplug fw loader is available, you need to load the
1252 firmware via mixartloader utility in alsa-tools package.
1257 Module for Echoaudio Mona
1259 This module supports multiple cards.
1260 The driver requires the firmware loader support on kernel.
1265 Module for MPU-401 UART devices.
1267 port - port number or -1 (disable)
1268 irq - IRQ number or -1 (disable)
1269 pnp - PnP detection - 0 = disable, 1 = enable (default)
1271 This module supports multiple devices and PnP.
1276 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1279 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1280 irq - IRQ # for MTPAV (7,5, default=7)
1281 hwports - number of supported hardware ports, default=8.
1283 Module supports only 1 card. This module has no enable option.
1288 Module for Ego Systems (ESI) Miditerminal 4140
1290 This module supports multiple devices.
1291 Requires parport (CONFIG_PARPORT).
1296 Module for NeoMagic NM256AV/ZX chips
1298 playback_bufsize - max playback frame size in kB (4-128kB)
1299 capture_bufsize - max capture frame size in kB (4-128kB)
1300 force_ac97 - 0 or 1 (disabled by default)
1301 buffer_top - specify buffer top address
1302 use_cache - 0 or 1 (disabled by default)
1303 vaio_hack - alias buffer_top=0x25a800
1304 reset_workaround - enable AC97 RESET workaround for some laptops
1305 reset_workaround2 - enable extended AC97 RESET workaround for some
1308 This module supports one chip and autoprobe.
1310 The power-management is supported.
1312 Note: on some notebooks the buffer address cannot be detected
1313 automatically, or causes hang-up during initialization.
1314 In such a case, specify the buffer top address explicitly via
1315 the buffer_top option.
1317 Sony F250: buffer_top=0x25a800
1318 Sony F270: buffer_top=0x272800
1319 The driver supports only ac97 codec. It's possible to force
1320 to initialize/use ac97 although it's not detected. In such a
1321 case, use force_ac97=1 option - but *NO* guarantee whether it
1324 Note: The NM256 chip can be linked internally with non-AC97
1325 codecs. This driver supports only the AC97 codec, and won't work
1326 with machines with other (most likely CS423x or OPL3SAx) chips,
1327 even though the device is detected in lspci. In such a case, try
1328 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1329 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1330 and proper hardware parameters in the case without ISA PnP.
1332 Note: some laptops need a workaround for AC97 RESET. For the
1333 known hardware like Dell Latitude LS and Sony PCG-F305, this
1334 workaround is enabled automatically. For other laptops with a
1335 hard freeze, you can try reset_workaround=1 option.
1337 Note: Dell Latitude CSx laptops have another problem regarding
1338 AC97 RESET. On these laptops, reset_workaround2 option is
1339 turned on as default. This option is worth to try if the
1340 previous reset_workaround option doesn't help.
1342 Note: This driver is really crappy. It's a porting from the
1343 OSS driver, which is a result of black-magic reverse engineering.
1344 The detection of codec will fail if the driver is loaded *after*
1345 X-server as described above. You might be able to force to load
1346 the module, but it may result in hang-up. Hence, make sure that
1347 you load this module *before* X if you encounter this kind of
1353 Module for Yamaha OPL3-SA2/SA3 sound cards.
1355 port - control port # for OPL3-SA chip (0x370)
1356 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1357 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1358 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1359 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1360 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1361 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1362 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1363 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1365 This module supports multiple cards and ISA PnP. It does not support
1366 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1368 The power-management is supported.
1370 Module snd-opti92x-ad1848
1371 -------------------------
1373 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1374 Module works with OAK Mozart cards as well.
1376 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1377 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1378 fm_port - port # for OPL3 device (0x388)
1379 irq - IRQ # for WSS chip (5,7,9,10,11)
1380 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1381 dma1 - first DMA # for WSS chip (0,1,3)
1383 This module supports only one card, autoprobe and PnP.
1385 Module snd-opti92x-cs4231
1386 -------------------------
1388 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1390 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1391 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1392 fm_port - port # for OPL3 device (0x388)
1393 irq - IRQ # for WSS chip (5,7,9,10,11)
1394 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1395 dma1 - first DMA # for WSS chip (0,1,3)
1396 dma2 - second DMA # for WSS chip (0,1,3)
1398 This module supports only one card, autoprobe and PnP.
1403 Module for sound cards based on OPTi 82c93x chips.
1405 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1406 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1407 fm_port - port # for OPL3 device (0x388)
1408 irq - IRQ # for WSS chip (5,7,9,10,11)
1409 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1410 dma1 - first DMA # for WSS chip (0,1,3)
1411 dma2 - second DMA # for WSS chip (0,1,3)
1413 This module supports only one card, autoprobe and PnP.
1418 Module for Digigram PCXHR boards
1420 This module supports multiple cards.
1422 Module snd-portman2x4
1423 ---------------------
1425 Module for Midiman Portman 2x4 parallel port MIDI interface
1427 This module supports multiple cards.
1429 Module snd-powermac (on ppc only)
1430 ---------------------------------
1432 Module for PowerMac, iMac and iBook on-board soundchips
1434 enable_beep - enable beep using PCM (enabled as default)
1436 Module supports autoprobe a chip.
1438 Note: the driver may have problems regarding endianess.
1440 The power-management is supported.
1442 Module snd-pxa2xx-ac97 (on arm only)
1443 ------------------------------------
1445 Module for AC97 driver for the Intel PXA2xx chip
1447 For ARM architecture only.
1449 The power-management is supported.
1454 Module for Conexant Riptide chip
1456 joystick_port - Joystick port # (default: 0x200)
1457 mpu_port - MPU401 port # (default: 0x330)
1458 opl3_port - OPL3 port # (default: 0x388)
1460 This module supports multiple cards.
1461 The driver requires the firmware loader support on kernel.
1462 You need to install the firmware file "riptide.hex" to the standard
1463 firmware path (e.g. /lib/firmware).
1468 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1469 Prodif96 and Prodif Gold) sound cards.
1471 This module supports multiple cards.
1476 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1478 This module supports multiple cards.
1483 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1485 precise_ptr - Enable precise pointer (doesn't work reliably).
1488 This module supports multiple cards.
1490 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1491 module did formerly. It will allocate the buffers in advance
1492 when any RME9652 cards are found. To make the buffer
1493 allocation sure, load snd-page-alloc module in the early
1494 stage of boot sequence. See "Early Buffer Allocation"
1497 Module snd-sa11xx-uda1341 (on arm only)
1498 ---------------------------------------
1500 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1502 Module supports only one card.
1503 Module has no enable and index options.
1505 The power-management is supported.
1510 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1514 port - port # for SB DSP chip (0x220,0x240,0x260)
1515 irq - IRQ # for SB DSP chip (5,7,9,10)
1516 dma8 - DMA # for SB DSP chip (1,3)
1518 This module supports multiple cards and autoprobe.
1520 The power-management is supported.
1522 Module snd-sb16 and snd-sbawe
1523 -----------------------------
1525 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1526 SoundBlaster AWE 32 (PnP),
1527 SoundBlaster AWE 64 PnP
1529 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1530 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1531 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1532 (snd-sbawe module only)
1533 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1534 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1535 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1536 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1537 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1538 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1540 This module supports multiple cards, autoprobe and ISA PnP.
1542 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1543 disable 16bit DMA with dma16 = -1 module parameter.
1544 Also, all Sound Blaster 16 type cards can operate in 16-bit
1545 half duplex mode through 8-bit DMA channel by disabling their
1548 The power-management is supported.
1553 Module for Aztech Sound Galaxy sound card.
1555 sbport - Port # for SB16 interface (0x220,0x240)
1556 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1557 irq - IRQ # (7,9,10,11)
1560 This module supports multiple cards.
1562 The power-management is supported.
1567 Module for ENSONIQ SoundScape PnP cards.
1569 port - Port # (PnP setup)
1570 irq - IRQ # (PnP setup)
1571 mpu_irq - MPU-401 IRQ # (PnP setup)
1572 dma - DMA # (PnP setup)
1574 This module supports multiple cards. ISA PnP must be enabled.
1575 You need sscape_ctl tool in alsa-tools package for loading
1578 Module snd-sun-amd7930 (on sparc only)
1579 --------------------------------------
1581 Module for AMD7930 sound chips found on Sparcs.
1583 This module supports multiple cards.
1585 Module snd-sun-cs4231 (on sparc only)
1586 -------------------------------------
1588 Module for CS4231 sound chips found on Sparcs.
1590 This module supports multiple cards.
1592 Module snd-sun-dbri (on sparc only)
1593 -----------------------------------
1595 Module for DBRI sound chips found on Sparcs.
1597 This module supports multiple cards.
1599 Module snd-wavefront
1600 --------------------
1602 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1604 cs4232_pcm_port - Port # for CS4232 PCM interface.
1605 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1606 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1607 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1608 use_cs4232_midi - Use CS4232 MPU-401 interface
1609 (inaccessibly located inside your computer)
1610 ics2115_port - Port # for ICS2115
1611 ics2115_irq - IRQ # for ICS2115
1612 fm_port - FM OPL-3 Port #
1613 dma1 - DMA1 # for CS4232 PCM interface.
1614 dma2 - DMA2 # for CS4232 PCM interface.
1615 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1617 This module supports multiple cards and ISA PnP.
1619 Module snd-sonicvibes
1620 ---------------------
1622 Module for S3 SonicVibes PCI sound cards.
1623 * PINE Schubert 32 PCI
1625 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1626 - SoundCard must have onboard SRAM for this.
1627 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1629 This module supports multiple cards and autoprobe.
1631 Module snd-serial-u16550
1632 ------------------------
1634 Module for UART16550A serial MIDI ports.
1636 port - port # for UART16550A chip
1637 irq - IRQ # for UART16550A chip, -1 = poll mode
1638 speed - speed in bauds (9600,19200,38400,57600,115200)
1640 base - base for divisor in bauds (57600,115200,230400,460800)
1642 outs - number of MIDI ports in a serial port (1-4)
1644 adaptor - Type of adaptor.
1645 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1646 3 = MS-124W M/B, 4 = Generic
1648 This module supports multiple cards. This module does not support autoprobe
1649 thus the main port must be specified!!! Other options are optional.
1654 Module for Trident 4DWave DX/NX sound cards.
1655 * Best Union Miss Melody 4DWave PCI
1657 * Warpspeed ONSpeed 4DWave PCI
1660 * CHIC True Sound 4Dwave
1661 * Shark Predator4D-PCI
1662 * Jaton SonicWave 4D
1664 pcm_channels - max channels (voices) reserved for PCM
1665 wavetable_size - max wavetable size in kB (4-?kb)
1667 This module supports multiple cards and autoprobe.
1669 The power-management is supported.
1671 Module snd-usb-audio
1672 --------------------
1674 Module for USB audio and USB MIDI devices.
1676 vid - Vendor ID for the device (optional)
1677 pid - Product ID for the device (optional)
1678 device_setup - Device specific magic number (optional)
1679 - Influence depends on the device
1682 This module supports multiple devices, autoprobe and hotplugging.
1684 Module snd-usb-usx2y
1685 --------------------
1687 Module for Tascam USB US-122, US-224 and US-428 devices.
1689 This module supports multiple devices, autoprobe and hotplugging.
1691 Note: you need to load the firmware via usx2yloader utility included
1692 in alsa-tools and alsa-firmware packages.
1697 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1698 8233A, 8233C, 8235, 8237 (south) bridge.
1700 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1702 joystick - Enable joystick (default off) [VIA686A/686B only]
1703 ac97_clock - AC'97 codec clock base (default 48000Hz)
1704 dxs_support - support DXS channels,
1705 0 = auto (default), 1 = enable, 2 = disable,
1706 3 = 48k only, 4 = no VRA, 5 = enable any sample
1707 rate and different sample rates on different
1709 [VIA8233/C, 8235, 8237 only]
1710 ac97_quirk - AC'97 workaround for strange hardware
1711 See "AC97 Quirk Option" section below.
1713 This module supports one chip and autoprobe.
1715 Note: on some SMP motherboards like MSI 694D the interrupts might
1716 not be generated properly. In such a case, please try to
1717 set the SMP (or MPS) version on BIOS to 1.1 instead of
1718 default value 1.4. Then the interrupt number will be
1719 assigned under 15. You might also upgrade your BIOS.
1721 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1722 channels as the first PCM. On these channels, up to 4
1723 streams can be played at the same time, and the controller
1724 can perform sample rate conversion with separate rates for
1726 As default (dxs_support = 0), 48k fixed rate is chosen
1727 except for the known devices since the output is often
1728 noisy except for 48k on some mother boards due to the
1730 Please try once dxs_support=5 and if it works on other
1731 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1732 know the PCI subsystem vendor/device id's (output of
1734 If dxs_support=5 does not work, try dxs_support=4; if it
1735 doesn't work too, try dxs_support=1. (dxs_support=1 is
1736 usually for old motherboards. The correct implemented
1737 board should work with 4 or 5.) If it still doesn't
1738 work and the default setting is ok, dxs_support=3 is the
1739 right choice. If the default setting doesn't work at all,
1740 try dxs_support=2 to disable the DXS channels.
1741 In any cases, please let us know the result and the
1742 subsystem vendor/device ids. See "Links and Addresses"
1745 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1746 additionally. The mpu_port option is for VIA686 chips only.
1748 The power-management is supported.
1750 Module snd-via82xx-modem
1751 ------------------------
1753 Module for VIA82xx AC97 modem
1755 ac97_clock - AC'97 codec clock base (default 48000Hz)
1757 This module supports one card and autoprobe.
1759 Note: The default index value of this module is -2, i.e. the first
1762 The power-management is supported.
1767 Module for virtual rawmidi devices.
1768 This module creates virtual rawmidi devices which communicate
1769 to the corresponding ALSA sequencer ports.
1771 midi_devs - MIDI devices # (1-4, default=4)
1773 This module supports multiple cards.
1778 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1780 mic - Enable Microphone on V222 Mic (NYI)
1781 ibl - Capture IBL size. (default = 0, minimum size)
1783 This module supports multiple cards.
1785 When the driver is compiled as a module and the hotplug firmware
1786 is supported, the firmware data is loaded via hotplug automatically.
1787 Install the necessary firmware files in alsa-firmware package.
1788 When no hotplug fw loader is available, you need to load the
1789 firmware via vxloader utility in alsa-tools package. To invoke
1790 vxloader automatically, add the following to /etc/modprobe.conf
1792 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1794 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1795 /etc/modules.conf, instead.)
1796 IBL size defines the interrupts period for PCM. The smaller size
1797 gives smaller latency but leads to more CPU consumption, too.
1798 The size is usually aligned to 126. As default (=0), the smallest
1799 size is chosen. The possible IBL values can be found in
1800 /proc/asound/cardX/vx-status proc file.
1802 The power-management is supported.
1807 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1809 ibl - Capture IBL size. (default = 0, minimum size)
1811 This module supports multiple cards. The module is compiled only when
1812 PCMCIA is supported on kernel.
1814 With the older 2.6.x kernel, to activate the driver via the card
1815 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1816 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1817 longer require a config file.
1819 When the driver is compiled as a module and the hotplug firmware
1820 is supported, the firmware data is loaded via hotplug automatically.
1821 Install the necessary firmware files in alsa-firmware package.
1822 When no hotplug fw loader is available, you need to load the
1823 firmware via vxloader utility in alsa-tools package.
1825 About capture IBL, see the description of snd-vx222 module.
1827 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1830 The power-management is supported.
1835 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1837 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1838 1 (auto-detect for YMF744/754 only)
1839 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1840 1 (auto-detect for YMF744/754 only)
1841 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1843 rear_switch - enable shared rear/line-in switch (bool)
1845 This module supports autoprobe and multiple chips.
1847 The power-management is supported.
1849 Module snd-pdaudiocf
1850 --------------------
1852 Module for Sound Core PDAudioCF sound card.
1854 The power-management is supported.
1860 The ac97_quirk option is used to enable/override the workaround for
1861 specific devices on drivers for on-board AC'97 controllers like
1862 snd-intel8x0. Some hardware have swapped output pins between Master
1863 and Headphone, or Surround (thanks to confusion of AC'97
1864 specifications from version to version :-)
1866 The driver provides the auto-detection of known problematic devices,
1867 but some might be unknown or wrongly detected. In such a case, pass
1868 the proper value with this option.
1870 The following strings are accepted:
1871 - default Don't override the default setting
1872 - none Disable the quirk
1873 - hp_only Bind Master and Headphone controls as a single control
1874 - swap_hp Swap headphone and master controls
1875 - swap_surround Swap master and surround controls
1876 - ad_sharing For AD1985, turn on OMS bit and use headphone
1877 - alc_jack For ALC65x, turn on the jack sense mode
1878 - inv_eapd Inverted EAPD implementation
1879 - mute_led Bind EAPD bit for turning on/off mute LED
1881 For backward compatibility, the corresponding integer value -1, 0,
1882 ... are accepted, too.
1884 For example, if "Master" volume control has no effect on your device
1885 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1888 Configuring Non-ISAPNP Cards
1889 ============================
1891 When the kernel is configured with ISA-PnP support, the modules
1892 supporting the isapnp cards will have module options "isapnp".
1893 If this option is set, *only* the ISA-PnP devices will be probed.
1894 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1895 together with the proper i/o and irq configuration.
1897 When the kernel is configured without ISA-PnP support, isapnp option
1898 will be not built in.
1901 Module Autoloading Support
1902 ==========================
1904 The ALSA drivers can be loaded automatically on demand by defining
1905 module aliases. The string 'snd-card-%1' is requested for ALSA native
1906 devices where %i is sound card number from zero to seven.
1908 To auto-load an ALSA driver for OSS services, define the string
1909 'sound-slot-%i' where %i means the slot number for OSS, which
1910 corresponds to the card index of ALSA. Usually, define this
1911 as the same card module.
1913 An example configuration for a single emu10k1 card is like below:
1914 ----- /etc/modprobe.conf
1915 alias snd-card-0 snd-emu10k1
1916 alias sound-slot-0 snd-emu10k1
1917 ----- /etc/modprobe.conf
1919 The available number of auto-loaded sound cards depends on the module
1920 option "cards_limit" of snd module. As default it's set to 1.
1921 To enable the auto-loading of multiple cards, specify the number of
1922 sound cards in that option.
1924 When multiple cards are available, it'd better to specify the index
1925 number for each card via module option, too, so that the order of
1926 cards is kept consistent.
1928 An example configuration for two sound cards is like below:
1930 ----- /etc/modprobe.conf
1932 options snd cards_limit=2
1933 alias snd-card-0 snd-interwave
1934 alias snd-card-1 snd-ens1371
1935 options snd-interwave index=0
1936 options snd-ens1371 index=1
1938 alias sound-slot-0 snd-interwave
1939 alias sound-slot-1 snd-ens1371
1940 ----- /etc/modprobe.conf
1942 In this example, the interwave card is always loaded as the first card
1943 (index 0) and ens1371 as the second (index 1).
1946 ALSA PCM devices to OSS devices mapping
1947 =======================================
1949 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1950 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1951 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1952 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1953 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1954 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1955 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1956 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1957 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1959 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1960 sound card number and second means device number. The ALSA devices
1961 have either 'c' or 'p' suffix indicating the direction, capture and
1962 playback, respectively.
1964 Please note that the device mapping above may be varied via the module
1965 options of snd-pcm-oss module.
1968 Proc interfaces (/proc/asound)
1969 ==============================
1971 /proc/asound/card#/pcm#[cp]/oss
1972 -------------------------------
1973 String "erase" - erase all additional informations about OSS applications
1974 String "<app_name> <fragments> <fragment_size> [<options>]"
1976 <app_name> - name of application with (higher priority) or without path
1977 <fragments> - number of fragments or zero if auto
1978 <fragment_size> - size of fragment in bytes or zero if auto
1979 <options> - optional parameters
1980 - disable the application tries to open a pcm device for
1981 this channel but does not want to use it.
1982 (Cause a bug or mmap needs)
1983 It's good for Quake etc...
1984 - direct don't use plugins
1985 - block force block mode (rvplayer)
1986 - non-block force non-block mode
1987 - whole-frag write only whole fragments (optimization affecting
1989 - no-silence do not fill silence ahead to avoid clicks
1990 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1991 instead of filled blocks
1993 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1994 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1995 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1998 Early Buffer Allocation
1999 =======================
2001 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2002 sometimes it's too late to find such spaces when the driver module is
2003 actually loaded due to memory fragmentation. You can pre-allocate the
2004 PCM buffers by loading snd-page-alloc module and write commands to its
2005 proc file in prior, for example, in the early boot stage like
2006 /etc/init.d/*.local scripts.
2008 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2009 usage of page allocation. In writing, you can send the following
2010 commands to the snd-page-alloc driver:
2012 - add VENDOR DEVICE MASK SIZE BUFFERS
2014 VENDOR and DEVICE are PCI vendor and device IDs. They take
2015 integer numbers (0x prefix is needed for the hex).
2016 MASK is the PCI DMA mask. Pass 0 if not restricted.
2017 SIZE is the size of each buffer to allocate. You can pass
2018 k and m suffix for KB and MB. The max number is 16MB.
2019 BUFFERS is the number of buffers to allocate. It must be greater
2020 than 0. The max number is 4.
2024 This will erase the all pre-allocated buffers which are not in
2031 ALSA project homepage
2032 http://www.alsa-project.org
2034 ALSA Bug Tracking System
2035 https://bugtrack.alsa-project.org/bugs/
2038 mailto:alsa-devel@lists.sourceforge.net