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
810 hippo Hippo (ATI) with jack detection, Sony UX-90s
811 hippo_1 Hippo (Benq) with jack detection
812 basic fixed pin assignment w/o SPDIF
813 auto auto-config reading BIOS (default)
816 3stack-dig 3-jack with SPDIF I/O
817 6stack-dig 6-jack digital with SPDIF I/O
819 macpro MacPro support
820 auto auto-config reading BIOS (default)
823 3stack-dig 3-jack with SPDIF I/O
824 6stack-dig 6-jack digital with SPDIF I/O
825 3stack-6ch 3-jack 6-channel
826 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
827 6stack-dig-demo 6-jack digital for Intel demo board
828 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
829 medion Medion Laptops
831 targa-2ch-dig Targs/MSI with 2-channel
832 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
833 auto auto-config reading BIOS (default)
837 3stack-dig 3-jack with SPDIF I/O
838 6stack-dig 6-jack with SPDIF I/O
839 3stack-660 3-jack (for ALC660)
840 uniwill-m31 Uniwill M31 laptop
841 toshiba Toshiba laptop support
842 asus Asus laptop support
843 asus-laptop ASUS F2/F3 laptops
844 auto auto-config reading BIOS (default)
847 minimal 3-jack in back
848 min_fp 3-jack in back, 2-jack in front
849 full 6-jack in back, 2-jack in front
850 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
851 allout 5-jack in back, 2-jack in front, SPDIF out
852 auto auto-config reading BIOS (default)
855 basic 3-jack (default)
857 thinkpad Lenovo Thinkpad T60/X60/Z60
860 6stack 6-jack, separate surrounds (default)
861 3stack 3-stack, shared surrounds
862 laptop 2-channel only (FSC V2060, Samsung M50)
863 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
867 6stack-dig ditto with SPDIF
869 3stack-dig ditto with SPDIF
870 laptop 3-jack with hp-jack automute
871 laptop-dig ditto with SPDIF
872 auto auto-config reading BIOS (default)
876 test for testing/debugging purpose, almost all controls
877 can be adjusted. Appearing only when compiled with
881 laptop Basic Laptop config
882 laptop-hp Laptop config for some HP models (subdevice 30A5)
883 laptop-eapd Laptop config with EAPD support
884 test for testing/debugging purpose, almost all controls
885 can be adjusted. Appearing only when compiled with
888 STAC9200/9205/9220/9221/9254
891 5stack D945 5stack + SPDIF
893 STAC9227/9228/9229/927x
896 5stack D965 5stack + SPDIF
899 vaio Setup for VAIO FE550G/SZ110
900 vaio-ar Setup for VAIO AR
902 If the default configuration doesn't work and one of the above
903 matches with your device, report it together with the PCI
904 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
905 ML (see the section "Links and Addresses").
907 Note 2: If you get click noises on output, try the module option
908 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
909 register value without FIFO size correction as the current
910 DMA pointer. position_fix=2 will make the driver to use
911 the position buffer instead of reading SD_LPIB register.
912 (Usually SD_LPLIB register is more accurate than the
915 NB: If you get many "azx_get_response timeout" messages at
916 loading, it's likely a problem of interrupts (e.g. ACPI irq
917 routing). Try to boot with options like "pci=noacpi". Also, you
918 can try "single_cmd=1" module option. This will switch the
919 communication method between HDA controller and codecs to the
920 single immediate commands instead of CORB/RIRB. Basically, the
921 single command mode is provided only for BIOS, and you won't get
922 unsolicited events, too. But, at least, this works independently
923 from the irq. Remember this is a last resort, and should be
924 avoided as much as possible...
926 The power-management is supported.
931 Module for RME Hammerfall DSP audio interface(s)
933 This module supports multiple cards.
935 Note: The firmware data can be automatically loaded via hotplug
936 when CONFIG_FW_LOADER is set. Otherwise, you need to load
937 the firmware via hdsploader utility included in alsa-tools
939 The firmware data is found in alsa-firmware package.
941 Note: snd-page-alloc module does the job which snd-hammerfall-mem
942 module did formerly. It will allocate the buffers in advance
943 when any HDSP cards are found. To make the buffer
944 allocation sure, load snd-page-alloc module in the early
945 stage of boot sequence. See "Early Buffer Allocation"
951 Module for RME HDSP MADI board.
953 precise_ptr - Enable precise pointer, or disable.
954 line_outs_monitor - Send playback streams to analog outs by default.
955 enable_monitor - Enable Analog Out on Channel 63/64 by default.
957 See hdspm.txt for details.
962 Module for Envy24 (ICE1712) based PCI sound cards.
963 * MidiMan M Audio Delta 1010
964 * MidiMan M Audio Delta 1010LT
965 * MidiMan M Audio Delta DiO 2496
966 * MidiMan M Audio Delta 66
967 * MidiMan M Audio Delta 44
968 * MidiMan M Audio Delta 410
969 * MidiMan M Audio Audiophile 2496
975 * Hoontech SoundTrack DSP 24
976 * Hoontech SoundTrack DSP 24 Value
977 * Hoontech SoundTrack DSP 24 Media 7.1
978 * Event Electronics, EZ8
980 * Lionstracs, Mediastaton
982 model - Use the given board model, one of the following:
983 delta1010, dio2496, delta66, delta44, audiophile, delta410,
984 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
985 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
986 phase88, mediastation
987 omni - Omni I/O support for MidiMan M-Audio Delta44/66
988 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
989 in msec resolution, default value is 500 (0.5 sec)
991 This module supports multiple cards and autoprobe. Note: The consumer part
992 is not used with all Envy24 based cards (for example in the MidiMan Delta
995 Note: The supported board is detected by reading EEPROM or PCI
996 SSID (if EEPROM isn't available). You can override the
997 model by passing "model" module option in case that the
998 driver isn't configured properly or you want to try another
1004 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1005 * MidiMan M Audio Revolution 5.1
1006 * MidiMan M Audio Revolution 7.1
1007 * MidiMan M Audio Audiophile 192
1009 * TerraTec Aureon 5.1 Sky
1010 * TerraTec Aureon 7.1 Space
1011 * TerraTec Aureon 7.1 Universe
1014 * AudioTrak Prodigy 7.1
1015 * AudioTrak Prodigy 7.1LT
1016 * AudioTrak Prodigy 192
1018 * Albatron K8X800 Pro II
1019 * Chaintech ZNF3-150
1020 * Chaintech ZNF3-250
1025 model - Use the given board model, one of the following:
1026 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1027 prodigy192, aureon51, aureon71, universe, ap192,
1028 k8x800, phase22, phase28, ms300, av710
1030 This module supports multiple cards and autoprobe.
1032 Note: The supported board is detected by reading EEPROM or PCI
1033 SSID (if EEPROM isn't available). You can override the
1034 model by passing "model" module option in case that the
1035 driver isn't configured properly or you want to try another
1041 Module for Echoaudio Indigo
1043 This module supports multiple cards.
1044 The driver requires the firmware loader support on kernel.
1049 Module for Echoaudio Indigo DJ
1051 This module supports multiple cards.
1052 The driver requires the firmware loader support on kernel.
1057 Module for Echoaudio Indigo IO
1059 This module supports multiple cards.
1060 The driver requires the firmware loader support on kernel.
1065 Module for AC'97 motherboards from Intel and compatibles.
1066 * Intel i810/810E, i815, i820, i830, i84x, MX440
1067 ICH5, ICH6, ICH7, ESB2
1068 * SiS 7012 (SiS 735)
1069 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1071 * AMD AMD768, AMD8111
1074 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1075 ac97_quirk - AC'97 workaround for strange hardware
1076 See "AC97 Quirk Option" section below.
1077 buggy_irq - Enable workaround for buggy interrupts on some
1078 motherboards (default yes on nForce chips,
1080 buggy_semaphore - Enable workaround for hardwares with buggy
1081 semaphores (e.g. on some ASUS laptops)
1083 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1084 from the controller chip
1085 (0 = off, 1 = on, -1 = default)
1087 This module supports one chip and autoprobe.
1089 Note: the latest driver supports auto-detection of chip clock.
1090 if you still encounter too fast playback, specify the clock
1091 explicitly via the module option "ac97_clock=41194".
1093 Joystick/MIDI ports are not supported by this driver. If your
1094 motherboard has these devices, use the ns558 or snd-mpu401
1095 modules, respectively.
1097 The power-management is supported.
1099 Module snd-intel8x0m
1100 --------------------
1102 Module for Intel ICH (i8x0) chipset MC97 modems.
1103 * Intel i810/810E, i815, i820, i830, i84x, MX440
1105 * SiS 7013 (SiS 735)
1106 * NVidia NForce, NForce2, NForce2s, NForce3
1110 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1112 This module supports one card and autoprobe.
1114 Note: The default index value of this module is -2, i.e. the first
1117 The power-management is supported.
1119 Module snd-interwave
1120 --------------------
1122 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1123 and other sound cards based on AMD InterWave (tm) chip.
1125 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1126 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1127 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1128 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1129 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1130 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1131 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1132 effect - 1 = InterWave effects enable (default 0);
1135 This module supports multiple cards, autoprobe and ISA PnP.
1137 Module snd-interwave-stb
1138 ------------------------
1140 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1141 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1142 circuit for extended control of bass, treble and master volume.
1144 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1145 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1146 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1147 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1148 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1149 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1150 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1151 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1152 effect - 1 = InterWave effects enable (default 0);
1155 This module supports multiple cards, autoprobe and ISA PnP.
1160 Module for Korg 1212 IO PCI card
1162 This module supports multiple cards.
1167 Module for Echoaudio Layla20
1169 This module supports multiple cards.
1170 The driver requires the firmware loader support on kernel.
1175 Module for Echoaudio Layla24
1177 This module supports multiple cards.
1178 The driver requires the firmware loader support on kernel.
1183 Module for Allegro/Maestro3 chips
1185 external_amp - enable external amp (enabled by default)
1186 amp_gpio - GPIO pin number for external amp (0-15) or
1187 -1 for default pin (8 for allegro, 1 for
1190 This module supports autoprobe and multiple chips.
1192 Note: the binding of amplifier is dependent on hardware.
1193 If there is no sound even though all channels are unmuted, try to
1194 specify other gpio connection via amp_gpio option.
1195 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1198 The power-management is supported.
1203 Module for Echoaudio Mia
1205 This module supports multiple cards.
1206 The driver requires the firmware loader support on kernel.
1211 Module for Miro soundcards: miroSOUND PCM 1 pro,
1213 miroSOUND PCM 20 Radio.
1215 port - Port # (0x530,0x604,0xe80,0xf40)
1216 irq - IRQ # (5,7,9,10,11)
1217 dma1 - 1st dma # (0,1,3)
1218 dma2 - 2nd dma # (0,1)
1219 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1220 mpu_irq - MPU-401 irq # (5,7,9,10)
1221 fm_port - FM Port # (0x388)
1222 wss - enable WSS mode
1223 ide - enable onboard ide support
1228 Module for Digigram miXart8 sound cards.
1230 This module supports multiple cards.
1231 Note: One miXart8 board will be represented as 4 alsa cards.
1232 See MIXART.txt for details.
1234 When the driver is compiled as a module and the hotplug firmware
1235 is supported, the firmware data is loaded via hotplug automatically.
1236 Install the necessary firmware files in alsa-firmware package.
1237 When no hotplug fw loader is available, you need to load the
1238 firmware via mixartloader utility in alsa-tools package.
1243 Module for Echoaudio Mona
1245 This module supports multiple cards.
1246 The driver requires the firmware loader support on kernel.
1251 Module for MPU-401 UART devices.
1253 port - port number or -1 (disable)
1254 irq - IRQ number or -1 (disable)
1255 pnp - PnP detection - 0 = disable, 1 = enable (default)
1257 This module supports multiple devices and PnP.
1262 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1265 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1266 irq - IRQ # for MTPAV (7,5, default=7)
1267 hwports - number of supported hardware ports, default=8.
1269 Module supports only 1 card. This module has no enable option.
1274 Module for Ego Systems (ESI) Miditerminal 4140
1276 This module supports multiple devices.
1277 Requires parport (CONFIG_PARPORT).
1282 Module for NeoMagic NM256AV/ZX chips
1284 playback_bufsize - max playback frame size in kB (4-128kB)
1285 capture_bufsize - max capture frame size in kB (4-128kB)
1286 force_ac97 - 0 or 1 (disabled by default)
1287 buffer_top - specify buffer top address
1288 use_cache - 0 or 1 (disabled by default)
1289 vaio_hack - alias buffer_top=0x25a800
1290 reset_workaround - enable AC97 RESET workaround for some laptops
1291 reset_workaround2 - enable extended AC97 RESET workaround for some
1294 This module supports one chip and autoprobe.
1296 The power-management is supported.
1298 Note: on some notebooks the buffer address cannot be detected
1299 automatically, or causes hang-up during initialization.
1300 In such a case, specify the buffer top address explicitly via
1301 the buffer_top option.
1303 Sony F250: buffer_top=0x25a800
1304 Sony F270: buffer_top=0x272800
1305 The driver supports only ac97 codec. It's possible to force
1306 to initialize/use ac97 although it's not detected. In such a
1307 case, use force_ac97=1 option - but *NO* guarantee whether it
1310 Note: The NM256 chip can be linked internally with non-AC97
1311 codecs. This driver supports only the AC97 codec, and won't work
1312 with machines with other (most likely CS423x or OPL3SAx) chips,
1313 even though the device is detected in lspci. In such a case, try
1314 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1315 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1316 and proper hardware parameters in the case without ISA PnP.
1318 Note: some laptops need a workaround for AC97 RESET. For the
1319 known hardware like Dell Latitude LS and Sony PCG-F305, this
1320 workaround is enabled automatically. For other laptops with a
1321 hard freeze, you can try reset_workaround=1 option.
1323 Note: Dell Latitude CSx laptops have another problem regarding
1324 AC97 RESET. On these laptops, reset_workaround2 option is
1325 turned on as default. This option is worth to try if the
1326 previous reset_workaround option doesn't help.
1328 Note: This driver is really crappy. It's a porting from the
1329 OSS driver, which is a result of black-magic reverse engineering.
1330 The detection of codec will fail if the driver is loaded *after*
1331 X-server as described above. You might be able to force to load
1332 the module, but it may result in hang-up. Hence, make sure that
1333 you load this module *before* X if you encounter this kind of
1339 Module for Yamaha OPL3-SA2/SA3 sound cards.
1341 port - control port # for OPL3-SA chip (0x370)
1342 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1343 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1344 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1345 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1346 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1347 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1348 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1349 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1351 This module supports multiple cards and ISA PnP. It does not support
1352 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1354 The power-management is supported.
1356 Module snd-opti92x-ad1848
1357 -------------------------
1359 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1360 Module works with OAK Mozart cards as well.
1362 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1363 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1364 fm_port - port # for OPL3 device (0x388)
1365 irq - IRQ # for WSS chip (5,7,9,10,11)
1366 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1367 dma1 - first DMA # for WSS chip (0,1,3)
1369 This module supports only one card, autoprobe and PnP.
1371 Module snd-opti92x-cs4231
1372 -------------------------
1374 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
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)
1382 dma2 - second DMA # for WSS chip (0,1,3)
1384 This module supports only one card, autoprobe and PnP.
1389 Module for sound cards based on OPTi 82c93x 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 Digigram PCXHR boards
1406 This module supports multiple cards.
1408 Module snd-powermac (on ppc only)
1409 ---------------------------------
1411 Module for PowerMac, iMac and iBook on-board soundchips
1413 enable_beep - enable beep using PCM (enabled as default)
1415 Module supports autoprobe a chip.
1417 Note: the driver may have problems regarding endianess.
1419 The power-management is supported.
1421 Module snd-pxa2xx-ac97 (on arm only)
1422 ------------------------------------
1424 Module for AC97 driver for the Intel PXA2xx chip
1426 For ARM architecture only.
1428 The power-management is supported.
1433 Module for Conexant Riptide chip
1435 joystick_port - Joystick port # (default: 0x200)
1436 mpu_port - MPU401 port # (default: 0x330)
1437 opl3_port - OPL3 port # (default: 0x388)
1439 This module supports multiple cards.
1440 The driver requires the firmware loader support on kernel.
1441 You need to install the firmware file "riptide.hex" to the standard
1442 firmware path (e.g. /lib/firmware).
1447 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1448 Prodif96 and Prodif Gold) sound cards.
1450 This module supports multiple cards.
1455 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1457 This module supports multiple cards.
1462 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1464 precise_ptr - Enable precise pointer (doesn't work reliably).
1467 This module supports multiple cards.
1469 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1470 module did formerly. It will allocate the buffers in advance
1471 when any RME9652 cards are found. To make the buffer
1472 allocation sure, load snd-page-alloc module in the early
1473 stage of boot sequence. See "Early Buffer Allocation"
1476 Module snd-sa11xx-uda1341 (on arm only)
1477 ---------------------------------------
1479 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1481 Module supports only one card.
1482 Module has no enable and index options.
1484 The power-management is supported.
1489 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1493 port - port # for SB DSP chip (0x220,0x240,0x260)
1494 irq - IRQ # for SB DSP chip (5,7,9,10)
1495 dma8 - DMA # for SB DSP chip (1,3)
1497 This module supports multiple cards and autoprobe.
1499 The power-management is supported.
1501 Module snd-sb16 and snd-sbawe
1502 -----------------------------
1504 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1505 SoundBlaster AWE 32 (PnP),
1506 SoundBlaster AWE 64 PnP
1508 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1509 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1510 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1511 (snd-sbawe module only)
1512 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1513 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1514 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1515 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1516 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1517 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1519 This module supports multiple cards, autoprobe and ISA PnP.
1521 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1522 disable 16bit DMA with dma16 = -1 module parameter.
1523 Also, all Sound Blaster 16 type cards can operate in 16-bit
1524 half duplex mode through 8-bit DMA channel by disabling their
1527 The power-management is supported.
1532 Module for Aztech Sound Galaxy sound card.
1534 sbport - Port # for SB16 interface (0x220,0x240)
1535 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1536 irq - IRQ # (7,9,10,11)
1539 This module supports multiple cards.
1541 The power-management is supported.
1546 Module for ENSONIQ SoundScape PnP cards.
1548 port - Port # (PnP setup)
1549 irq - IRQ # (PnP setup)
1550 mpu_irq - MPU-401 IRQ # (PnP setup)
1551 dma - DMA # (PnP setup)
1553 This module supports multiple cards. ISA PnP must be enabled.
1554 You need sscape_ctl tool in alsa-tools package for loading
1557 Module snd-sun-amd7930 (on sparc only)
1558 --------------------------------------
1560 Module for AMD7930 sound chips found on Sparcs.
1562 This module supports multiple cards.
1564 Module snd-sun-cs4231 (on sparc only)
1565 -------------------------------------
1567 Module for CS4231 sound chips found on Sparcs.
1569 This module supports multiple cards.
1571 Module snd-sun-dbri (on sparc only)
1572 -----------------------------------
1574 Module for DBRI sound chips found on Sparcs.
1576 This module supports multiple cards.
1578 Module snd-wavefront
1579 --------------------
1581 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1583 cs4232_pcm_port - Port # for CS4232 PCM interface.
1584 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1585 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1586 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1587 use_cs4232_midi - Use CS4232 MPU-401 interface
1588 (inaccessibly located inside your computer)
1589 ics2115_port - Port # for ICS2115
1590 ics2115_irq - IRQ # for ICS2115
1591 fm_port - FM OPL-3 Port #
1592 dma1 - DMA1 # for CS4232 PCM interface.
1593 dma2 - DMA2 # for CS4232 PCM interface.
1594 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1596 This module supports multiple cards and ISA PnP.
1598 Module snd-sonicvibes
1599 ---------------------
1601 Module for S3 SonicVibes PCI sound cards.
1602 * PINE Schubert 32 PCI
1604 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1605 - SoundCard must have onboard SRAM for this.
1606 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1608 This module supports multiple cards and autoprobe.
1610 Module snd-serial-u16550
1611 ------------------------
1613 Module for UART16550A serial MIDI ports.
1615 port - port # for UART16550A chip
1616 irq - IRQ # for UART16550A chip, -1 = poll mode
1617 speed - speed in bauds (9600,19200,38400,57600,115200)
1619 base - base for divisor in bauds (57600,115200,230400,460800)
1621 outs - number of MIDI ports in a serial port (1-4)
1623 adaptor - Type of adaptor.
1624 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1625 3 = MS-124W M/B, 4 = Generic
1627 This module supports multiple cards. This module does not support autoprobe
1628 thus the main port must be specified!!! Other options are optional.
1633 Module for Trident 4DWave DX/NX sound cards.
1634 * Best Union Miss Melody 4DWave PCI
1636 * Warpspeed ONSpeed 4DWave PCI
1639 * CHIC True Sound 4Dwave
1640 * Shark Predator4D-PCI
1641 * Jaton SonicWave 4D
1643 pcm_channels - max channels (voices) reserved for PCM
1644 wavetable_size - max wavetable size in kB (4-?kb)
1646 This module supports multiple cards and autoprobe.
1648 The power-management is supported.
1650 Module snd-usb-audio
1651 --------------------
1653 Module for USB audio and USB MIDI devices.
1655 vid - Vendor ID for the device (optional)
1656 pid - Product ID for the device (optional)
1657 device_setup - Device specific magic number (optional)
1658 - Influence depends on the device
1661 This module supports multiple devices, autoprobe and hotplugging.
1663 Module snd-usb-usx2y
1664 --------------------
1666 Module for Tascam USB US-122, US-224 and US-428 devices.
1668 This module supports multiple devices, autoprobe and hotplugging.
1670 Note: you need to load the firmware via usx2yloader utility included
1671 in alsa-tools and alsa-firmware packages.
1676 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1677 8233A, 8233C, 8235, 8237 (south) bridge.
1679 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1681 joystick - Enable joystick (default off) [VIA686A/686B only]
1682 ac97_clock - AC'97 codec clock base (default 48000Hz)
1683 dxs_support - support DXS channels,
1684 0 = auto (default), 1 = enable, 2 = disable,
1685 3 = 48k only, 4 = no VRA, 5 = enable any sample
1686 rate and different sample rates on different
1688 [VIA8233/C, 8235, 8237 only]
1689 ac97_quirk - AC'97 workaround for strange hardware
1690 See "AC97 Quirk Option" section below.
1692 This module supports one chip and autoprobe.
1694 Note: on some SMP motherboards like MSI 694D the interrupts might
1695 not be generated properly. In such a case, please try to
1696 set the SMP (or MPS) version on BIOS to 1.1 instead of
1697 default value 1.4. Then the interrupt number will be
1698 assigned under 15. You might also upgrade your BIOS.
1700 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1701 channels as the first PCM. On these channels, up to 4
1702 streams can be played at the same time, and the controller
1703 can perform sample rate conversion with separate rates for
1705 As default (dxs_support = 0), 48k fixed rate is chosen
1706 except for the known devices since the output is often
1707 noisy except for 48k on some mother boards due to the
1709 Please try once dxs_support=5 and if it works on other
1710 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1711 know the PCI subsystem vendor/device id's (output of
1713 If dxs_support=5 does not work, try dxs_support=4; if it
1714 doesn't work too, try dxs_support=1. (dxs_support=1 is
1715 usually for old motherboards. The correct implemented
1716 board should work with 4 or 5.) If it still doesn't
1717 work and the default setting is ok, dxs_support=3 is the
1718 right choice. If the default setting doesn't work at all,
1719 try dxs_support=2 to disable the DXS channels.
1720 In any cases, please let us know the result and the
1721 subsystem vendor/device ids. See "Links and Addresses"
1724 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1725 additionally. The mpu_port option is for VIA686 chips only.
1727 The power-management is supported.
1729 Module snd-via82xx-modem
1730 ------------------------
1732 Module for VIA82xx AC97 modem
1734 ac97_clock - AC'97 codec clock base (default 48000Hz)
1736 This module supports one card and autoprobe.
1738 Note: The default index value of this module is -2, i.e. the first
1741 The power-management is supported.
1746 Module for virtual rawmidi devices.
1747 This module creates virtual rawmidi devices which communicate
1748 to the corresponding ALSA sequencer ports.
1750 midi_devs - MIDI devices # (1-4, default=4)
1752 This module supports multiple cards.
1757 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1759 mic - Enable Microphone on V222 Mic (NYI)
1760 ibl - Capture IBL size. (default = 0, minimum size)
1762 This module supports multiple cards.
1764 When the driver is compiled as a module and the hotplug firmware
1765 is supported, the firmware data is loaded via hotplug automatically.
1766 Install the necessary firmware files in alsa-firmware package.
1767 When no hotplug fw loader is available, you need to load the
1768 firmware via vxloader utility in alsa-tools package. To invoke
1769 vxloader automatically, add the following to /etc/modprobe.conf
1771 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1773 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1774 /etc/modules.conf, instead.)
1775 IBL size defines the interrupts period for PCM. The smaller size
1776 gives smaller latency but leads to more CPU consumption, too.
1777 The size is usually aligned to 126. As default (=0), the smallest
1778 size is chosen. The possible IBL values can be found in
1779 /proc/asound/cardX/vx-status proc file.
1781 The power-management is supported.
1786 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1788 ibl - Capture IBL size. (default = 0, minimum size)
1790 This module supports multiple cards. The module is compiled only when
1791 PCMCIA is supported on kernel.
1793 With the older 2.6.x kernel, to activate the driver via the card
1794 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1795 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1796 longer require a config file.
1798 When the driver is compiled as a module and the hotplug firmware
1799 is supported, the firmware data is loaded via hotplug automatically.
1800 Install the necessary firmware files in alsa-firmware package.
1801 When no hotplug fw loader is available, you need to load the
1802 firmware via vxloader utility in alsa-tools package.
1804 About capture IBL, see the description of snd-vx222 module.
1806 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1809 The power-management is supported.
1814 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1816 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1817 1 (auto-detect for YMF744/754 only)
1818 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1819 1 (auto-detect for YMF744/754 only)
1820 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1822 rear_switch - enable shared rear/line-in switch (bool)
1824 This module supports autoprobe and multiple chips.
1826 The power-management is supported.
1828 Module snd-pdaudiocf
1829 --------------------
1831 Module for Sound Core PDAudioCF sound card.
1833 The power-management is supported.
1839 The ac97_quirk option is used to enable/override the workaround for
1840 specific devices on drivers for on-board AC'97 controllers like
1841 snd-intel8x0. Some hardware have swapped output pins between Master
1842 and Headphone, or Surround (thanks to confusion of AC'97
1843 specifications from version to version :-)
1845 The driver provides the auto-detection of known problematic devices,
1846 but some might be unknown or wrongly detected. In such a case, pass
1847 the proper value with this option.
1849 The following strings are accepted:
1850 - default Don't override the default setting
1851 - none Disable the quirk
1852 - hp_only Bind Master and Headphone controls as a single control
1853 - swap_hp Swap headphone and master controls
1854 - swap_surround Swap master and surround controls
1855 - ad_sharing For AD1985, turn on OMS bit and use headphone
1856 - alc_jack For ALC65x, turn on the jack sense mode
1857 - inv_eapd Inverted EAPD implementation
1858 - mute_led Bind EAPD bit for turning on/off mute LED
1860 For backward compatibility, the corresponding integer value -1, 0,
1861 ... are accepted, too.
1863 For example, if "Master" volume control has no effect on your device
1864 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1867 Configuring Non-ISAPNP Cards
1868 ============================
1870 When the kernel is configured with ISA-PnP support, the modules
1871 supporting the isapnp cards will have module options "isapnp".
1872 If this option is set, *only* the ISA-PnP devices will be probed.
1873 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1874 together with the proper i/o and irq configuration.
1876 When the kernel is configured without ISA-PnP support, isapnp option
1877 will be not built in.
1880 Module Autoloading Support
1881 ==========================
1883 The ALSA drivers can be loaded automatically on demand by defining
1884 module aliases. The string 'snd-card-%1' is requested for ALSA native
1885 devices where %i is sound card number from zero to seven.
1887 To auto-load an ALSA driver for OSS services, define the string
1888 'sound-slot-%i' where %i means the slot number for OSS, which
1889 corresponds to the card index of ALSA. Usually, define this
1890 as the same card module.
1892 An example configuration for a single emu10k1 card is like below:
1893 ----- /etc/modprobe.conf
1894 alias snd-card-0 snd-emu10k1
1895 alias sound-slot-0 snd-emu10k1
1896 ----- /etc/modprobe.conf
1898 The available number of auto-loaded sound cards depends on the module
1899 option "cards_limit" of snd module. As default it's set to 1.
1900 To enable the auto-loading of multiple cards, specify the number of
1901 sound cards in that option.
1903 When multiple cards are available, it'd better to specify the index
1904 number for each card via module option, too, so that the order of
1905 cards is kept consistent.
1907 An example configuration for two sound cards is like below:
1909 ----- /etc/modprobe.conf
1911 options snd cards_limit=2
1912 alias snd-card-0 snd-interwave
1913 alias snd-card-1 snd-ens1371
1914 options snd-interwave index=0
1915 options snd-ens1371 index=1
1917 alias sound-slot-0 snd-interwave
1918 alias sound-slot-1 snd-ens1371
1919 ----- /etc/modprobe.conf
1921 In this example, the interwave card is always loaded as the first card
1922 (index 0) and ens1371 as the second (index 1).
1925 ALSA PCM devices to OSS devices mapping
1926 =======================================
1928 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1929 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1930 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1931 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1932 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1933 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1934 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1935 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1936 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1938 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1939 sound card number and second means device number. The ALSA devices
1940 have either 'c' or 'p' suffix indicating the direction, capture and
1941 playback, respectively.
1943 Please note that the device mapping above may be varied via the module
1944 options of snd-pcm-oss module.
1947 Proc interfaces (/proc/asound)
1948 ==============================
1950 /proc/asound/card#/pcm#[cp]/oss
1951 -------------------------------
1952 String "erase" - erase all additional informations about OSS applications
1953 String "<app_name> <fragments> <fragment_size> [<options>]"
1955 <app_name> - name of application with (higher priority) or without path
1956 <fragments> - number of fragments or zero if auto
1957 <fragment_size> - size of fragment in bytes or zero if auto
1958 <options> - optional parameters
1959 - disable the application tries to open a pcm device for
1960 this channel but does not want to use it.
1961 (Cause a bug or mmap needs)
1962 It's good for Quake etc...
1963 - direct don't use plugins
1964 - block force block mode (rvplayer)
1965 - non-block force non-block mode
1966 - whole-frag write only whole fragments (optimization affecting
1968 - no-silence do not fill silence ahead to avoid clicks
1969 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1970 instead of filled blocks
1972 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1973 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1974 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1977 Early Buffer Allocation
1978 =======================
1980 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1981 sometimes it's too late to find such spaces when the driver module is
1982 actually loaded due to memory fragmentation. You can pre-allocate the
1983 PCM buffers by loading snd-page-alloc module and write commands to its
1984 proc file in prior, for example, in the early boot stage like
1985 /etc/init.d/*.local scripts.
1987 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1988 usage of page allocation. In writing, you can send the following
1989 commands to the snd-page-alloc driver:
1991 - add VENDOR DEVICE MASK SIZE BUFFERS
1993 VENDOR and DEVICE are PCI vendor and device IDs. They take
1994 integer numbers (0x prefix is needed for the hex).
1995 MASK is the PCI DMA mask. Pass 0 if not restricted.
1996 SIZE is the size of each buffer to allocate. You can pass
1997 k and m suffix for KB and MB. The max number is 16MB.
1998 BUFFERS is the number of buffers to allocate. It must be greater
1999 than 0. The max number is 4.
2003 This will erase the all pre-allocated buffers which are not in
2010 ALSA project homepage
2011 http://www.alsa-project.org
2013 ALSA Bug Tracking System
2014 https://bugtrack.alsa-project.org/bugs/
2017 mailto:alsa-devel@lists.sourceforge.net