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 6stck-dig 6-jack digital with SPDIF I/O
819 auto auto-config reading BIOS (default)
822 3stack-dig 3-jack with SPDIF I/O
823 6stack-dig 6-jack digital with SPDIF I/O
824 3stack-6ch 3-jack 6-channel
825 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
826 6stack-dig-demo 6-jack digital for Intel demo board
827 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
828 medion Medion Laptops
830 targa-2ch-dig Targs/MSI with 2-channel
831 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
832 auto auto-config reading BIOS (default)
836 3stack-dig 3-jack with SPDIF I/O
837 6stack-dig 6-jack with SPDIF I/O
838 3stack-660 3-jack (for ALC660)
839 uniwill-m31 Uniwill M31 laptop
840 toshiba Toshiba laptop support
841 asus Asus laptop support
842 auto auto-config reading BIOS (default)
845 minimal 3-jack in back
846 min_fp 3-jack in back, 2-jack in front
847 full 6-jack in back, 2-jack in front
848 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
849 allout 5-jack in back, 2-jack in front, SPDIF out
850 auto auto-config reading BIOS (default)
853 basic 3-jack (default)
855 thinkpad Lenovo Thinkpad T60/X60/Z60
858 6stack 6-jack, separate surrounds (default)
859 3stack 3-stack, shared surrounds
860 laptop 2-channel only (FSC V2060, Samsung M50)
861 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
865 6stack-dig ditto with SPDIF
867 3stack-dig ditto with SPDIF
868 laptop 3-jack with hp-jack automute
869 laptop-dig ditto with SPDIF
870 auto auto-config reading BIOS (default)
874 test for testing/debugging purpose, almost all controls
875 can be adjusted. Appearing only when compiled with
879 laptop Basic Laptop config
880 laptop-hp Laptop config for some HP models (subdevice 30A5)
881 laptop-eapd Laptop config with EAPD support
882 test for testing/debugging purpose, almost all controls
883 can be adjusted. Appearing only when compiled with
886 STAC9200/9205/9220/9221/9254
889 5stack D945 5stack + SPDIF
891 STAC9227/9228/9229/927x
894 5stack D965 5stack + SPDIF
897 vaio Setup for VAIO FE550G/SZ110
898 vaio-ar Setup for VAIO AR
900 If the default configuration doesn't work and one of the above
901 matches with your device, report it together with the PCI
902 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
903 ML (see the section "Links and Addresses").
905 Note 2: If you get click noises on output, try the module option
906 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
907 register value without FIFO size correction as the current
908 DMA pointer. position_fix=2 will make the driver to use
909 the position buffer instead of reading SD_LPIB register.
910 (Usually SD_LPLIB register is more accurate than the
913 NB: If you get many "azx_get_response timeout" messages at
914 loading, it's likely a problem of interrupts (e.g. ACPI irq
915 routing). Try to boot with options like "pci=noacpi". Also, you
916 can try "single_cmd=1" module option. This will switch the
917 communication method between HDA controller and codecs to the
918 single immediate commands instead of CORB/RIRB. Basically, the
919 single command mode is provided only for BIOS, and you won't get
920 unsolicited events, too. But, at least, this works independently
921 from the irq. Remember this is a last resort, and should be
922 avoided as much as possible...
924 The power-management is supported.
929 Module for RME Hammerfall DSP audio interface(s)
931 This module supports multiple cards.
933 Note: The firmware data can be automatically loaded via hotplug
934 when CONFIG_FW_LOADER is set. Otherwise, you need to load
935 the firmware via hdsploader utility included in alsa-tools
937 The firmware data is found in alsa-firmware package.
939 Note: snd-page-alloc module does the job which snd-hammerfall-mem
940 module did formerly. It will allocate the buffers in advance
941 when any HDSP cards are found. To make the buffer
942 allocation sure, load snd-page-alloc module in the early
943 stage of boot sequence. See "Early Buffer Allocation"
949 Module for RME HDSP MADI board.
951 precise_ptr - Enable precise pointer, or disable.
952 line_outs_monitor - Send playback streams to analog outs by default.
953 enable_monitor - Enable Analog Out on Channel 63/64 by default.
955 See hdspm.txt for details.
960 Module for Envy24 (ICE1712) based PCI sound cards.
961 * MidiMan M Audio Delta 1010
962 * MidiMan M Audio Delta 1010LT
963 * MidiMan M Audio Delta DiO 2496
964 * MidiMan M Audio Delta 66
965 * MidiMan M Audio Delta 44
966 * MidiMan M Audio Delta 410
967 * MidiMan M Audio Audiophile 2496
973 * Hoontech SoundTrack DSP 24
974 * Hoontech SoundTrack DSP 24 Value
975 * Hoontech SoundTrack DSP 24 Media 7.1
976 * Event Electronics, EZ8
978 * Lionstracs, Mediastaton
980 model - Use the given board model, one of the following:
981 delta1010, dio2496, delta66, delta44, audiophile, delta410,
982 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
983 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
984 phase88, mediastation
985 omni - Omni I/O support for MidiMan M-Audio Delta44/66
986 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
987 in msec resolution, default value is 500 (0.5 sec)
989 This module supports multiple cards and autoprobe. Note: The consumer part
990 is not used with all Envy24 based cards (for example in the MidiMan Delta
993 Note: The supported board is detected by reading EEPROM or PCI
994 SSID (if EEPROM isn't available). You can override the
995 model by passing "model" module option in case that the
996 driver isn't configured properly or you want to try another
1002 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1003 * MidiMan M Audio Revolution 5.1
1004 * MidiMan M Audio Revolution 7.1
1005 * MidiMan M Audio Audiophile 192
1007 * TerraTec Aureon 5.1 Sky
1008 * TerraTec Aureon 7.1 Space
1009 * TerraTec Aureon 7.1 Universe
1012 * AudioTrak Prodigy 7.1
1013 * AudioTrak Prodigy 7.1LT
1014 * AudioTrak Prodigy 192
1016 * Albatron K8X800 Pro II
1017 * Chaintech ZNF3-150
1018 * Chaintech ZNF3-250
1023 model - Use the given board model, one of the following:
1024 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1025 prodigy192, aureon51, aureon71, universe, ap192,
1026 k8x800, phase22, phase28, ms300, av710
1028 This module supports multiple cards and autoprobe.
1030 Note: The supported board is detected by reading EEPROM or PCI
1031 SSID (if EEPROM isn't available). You can override the
1032 model by passing "model" module option in case that the
1033 driver isn't configured properly or you want to try another
1039 Module for Echoaudio Indigo
1041 This module supports multiple cards.
1042 The driver requires the firmware loader support on kernel.
1047 Module for Echoaudio Indigo DJ
1049 This module supports multiple cards.
1050 The driver requires the firmware loader support on kernel.
1055 Module for Echoaudio Indigo IO
1057 This module supports multiple cards.
1058 The driver requires the firmware loader support on kernel.
1063 Module for AC'97 motherboards from Intel and compatibles.
1064 * Intel i810/810E, i815, i820, i830, i84x, MX440
1065 ICH5, ICH6, ICH7, ESB2
1066 * SiS 7012 (SiS 735)
1067 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1069 * AMD AMD768, AMD8111
1072 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1073 ac97_quirk - AC'97 workaround for strange hardware
1074 See "AC97 Quirk Option" section below.
1075 buggy_irq - Enable workaround for buggy interrupts on some
1076 motherboards (default yes on nForce chips,
1078 buggy_semaphore - Enable workaround for hardwares with buggy
1079 semaphores (e.g. on some ASUS laptops)
1082 This module supports one chip and autoprobe.
1084 Note: the latest driver supports auto-detection of chip clock.
1085 if you still encounter too fast playback, specify the clock
1086 explicitly via the module option "ac97_clock=41194".
1088 Joystick/MIDI ports are not supported by this driver. If your
1089 motherboard has these devices, use the ns558 or snd-mpu401
1090 modules, respectively.
1092 The power-management is supported.
1094 Module snd-intel8x0m
1095 --------------------
1097 Module for Intel ICH (i8x0) chipset MC97 modems.
1098 * Intel i810/810E, i815, i820, i830, i84x, MX440
1100 * SiS 7013 (SiS 735)
1101 * NVidia NForce, NForce2, NForce2s, NForce3
1105 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1107 This module supports one card and autoprobe.
1109 Note: The default index value of this module is -2, i.e. the first
1112 The power-management is supported.
1114 Module snd-interwave
1115 --------------------
1117 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1118 and other sound cards based on AMD InterWave (tm) chip.
1120 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1121 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1122 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1123 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1124 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1125 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1126 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1127 effect - 1 = InterWave effects enable (default 0);
1130 This module supports multiple cards, autoprobe and ISA PnP.
1132 Module snd-interwave-stb
1133 ------------------------
1135 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1136 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1137 circuit for extended control of bass, treble and master volume.
1139 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1140 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1141 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1142 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1143 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1144 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1145 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1146 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1147 effect - 1 = InterWave effects enable (default 0);
1150 This module supports multiple cards, autoprobe and ISA PnP.
1155 Module for Korg 1212 IO PCI card
1157 This module supports multiple cards.
1162 Module for Echoaudio Layla20
1164 This module supports multiple cards.
1165 The driver requires the firmware loader support on kernel.
1170 Module for Echoaudio Layla24
1172 This module supports multiple cards.
1173 The driver requires the firmware loader support on kernel.
1178 Module for Allegro/Maestro3 chips
1180 external_amp - enable external amp (enabled by default)
1181 amp_gpio - GPIO pin number for external amp (0-15) or
1182 -1 for default pin (8 for allegro, 1 for
1185 This module supports autoprobe and multiple chips.
1187 Note: the binding of amplifier is dependent on hardware.
1188 If there is no sound even though all channels are unmuted, try to
1189 specify other gpio connection via amp_gpio option.
1190 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1193 The power-management is supported.
1198 Module for Echoaudio Mia
1200 This module supports multiple cards.
1201 The driver requires the firmware loader support on kernel.
1206 Module for Miro soundcards: miroSOUND PCM 1 pro,
1208 miroSOUND PCM 20 Radio.
1210 port - Port # (0x530,0x604,0xe80,0xf40)
1211 irq - IRQ # (5,7,9,10,11)
1212 dma1 - 1st dma # (0,1,3)
1213 dma2 - 2nd dma # (0,1)
1214 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1215 mpu_irq - MPU-401 irq # (5,7,9,10)
1216 fm_port - FM Port # (0x388)
1217 wss - enable WSS mode
1218 ide - enable onboard ide support
1223 Module for Digigram miXart8 sound cards.
1225 This module supports multiple cards.
1226 Note: One miXart8 board will be represented as 4 alsa cards.
1227 See MIXART.txt for details.
1229 When the driver is compiled as a module and the hotplug firmware
1230 is supported, the firmware data is loaded via hotplug automatically.
1231 Install the necessary firmware files in alsa-firmware package.
1232 When no hotplug fw loader is available, you need to load the
1233 firmware via mixartloader utility in alsa-tools package.
1238 Module for Echoaudio Mona
1240 This module supports multiple cards.
1241 The driver requires the firmware loader support on kernel.
1246 Module for MPU-401 UART devices.
1248 port - port number or -1 (disable)
1249 irq - IRQ number or -1 (disable)
1250 pnp - PnP detection - 0 = disable, 1 = enable (default)
1252 This module supports multiple devices and PnP.
1257 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1260 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1261 irq - IRQ # for MTPAV (7,5, default=7)
1262 hwports - number of supported hardware ports, default=8.
1264 Module supports only 1 card. This module has no enable option.
1269 Module for Ego Systems (ESI) Miditerminal 4140
1271 This module supports multiple devices.
1272 Requires parport (CONFIG_PARPORT).
1277 Module for NeoMagic NM256AV/ZX chips
1279 playback_bufsize - max playback frame size in kB (4-128kB)
1280 capture_bufsize - max capture frame size in kB (4-128kB)
1281 force_ac97 - 0 or 1 (disabled by default)
1282 buffer_top - specify buffer top address
1283 use_cache - 0 or 1 (disabled by default)
1284 vaio_hack - alias buffer_top=0x25a800
1285 reset_workaround - enable AC97 RESET workaround for some laptops
1286 reset_workaround2 - enable extended AC97 RESET workaround for some
1289 This module supports one chip and autoprobe.
1291 The power-management is supported.
1293 Note: on some notebooks the buffer address cannot be detected
1294 automatically, or causes hang-up during initialization.
1295 In such a case, specify the buffer top address explicitly via
1296 the buffer_top option.
1298 Sony F250: buffer_top=0x25a800
1299 Sony F270: buffer_top=0x272800
1300 The driver supports only ac97 codec. It's possible to force
1301 to initialize/use ac97 although it's not detected. In such a
1302 case, use force_ac97=1 option - but *NO* guarantee whether it
1305 Note: The NM256 chip can be linked internally with non-AC97
1306 codecs. This driver supports only the AC97 codec, and won't work
1307 with machines with other (most likely CS423x or OPL3SAx) chips,
1308 even though the device is detected in lspci. In such a case, try
1309 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1310 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1311 and proper hardware parameters in the case without ISA PnP.
1313 Note: some laptops need a workaround for AC97 RESET. For the
1314 known hardware like Dell Latitude LS and Sony PCG-F305, this
1315 workaround is enabled automatically. For other laptops with a
1316 hard freeze, you can try reset_workaround=1 option.
1318 Note: Dell Latitude CSx laptops have another problem regarding
1319 AC97 RESET. On these laptops, reset_workaround2 option is
1320 turned on as default. This option is worth to try if the
1321 previous reset_workaround option doesn't help.
1323 Note: This driver is really crappy. It's a porting from the
1324 OSS driver, which is a result of black-magic reverse engineering.
1325 The detection of codec will fail if the driver is loaded *after*
1326 X-server as described above. You might be able to force to load
1327 the module, but it may result in hang-up. Hence, make sure that
1328 you load this module *before* X if you encounter this kind of
1334 Module for Yamaha OPL3-SA2/SA3 sound cards.
1336 port - control port # for OPL3-SA chip (0x370)
1337 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1338 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1339 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1340 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1341 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1342 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1343 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1344 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1346 This module supports multiple cards and ISA PnP. It does not support
1347 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1349 The power-management is supported.
1351 Module snd-opti92x-ad1848
1352 -------------------------
1354 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1355 Module works with OAK Mozart cards as well.
1357 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1358 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1359 fm_port - port # for OPL3 device (0x388)
1360 irq - IRQ # for WSS chip (5,7,9,10,11)
1361 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1362 dma1 - first DMA # for WSS chip (0,1,3)
1364 This module supports only one card, autoprobe and PnP.
1366 Module snd-opti92x-cs4231
1367 -------------------------
1369 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1371 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1372 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1373 fm_port - port # for OPL3 device (0x388)
1374 irq - IRQ # for WSS chip (5,7,9,10,11)
1375 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1376 dma1 - first DMA # for WSS chip (0,1,3)
1377 dma2 - second DMA # for WSS chip (0,1,3)
1379 This module supports only one card, autoprobe and PnP.
1384 Module for sound cards based on OPTi 82c93x chips.
1386 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1387 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1388 fm_port - port # for OPL3 device (0x388)
1389 irq - IRQ # for WSS chip (5,7,9,10,11)
1390 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1391 dma1 - first DMA # for WSS chip (0,1,3)
1392 dma2 - second DMA # for WSS chip (0,1,3)
1394 This module supports only one card, autoprobe and PnP.
1399 Module for Digigram PCXHR boards
1401 This module supports multiple cards.
1403 Module snd-powermac (on ppc only)
1404 ---------------------------------
1406 Module for PowerMac, iMac and iBook on-board soundchips
1408 enable_beep - enable beep using PCM (enabled as default)
1410 Module supports autoprobe a chip.
1412 Note: the driver may have problems regarding endianess.
1414 The power-management is supported.
1416 Module snd-pxa2xx-ac97 (on arm only)
1417 ------------------------------------
1419 Module for AC97 driver for the Intel PXA2xx chip
1421 For ARM architecture only.
1423 The power-management is supported.
1428 Module for Conexant Riptide chip
1430 joystick_port - Joystick port # (default: 0x200)
1431 mpu_port - MPU401 port # (default: 0x330)
1432 opl3_port - OPL3 port # (default: 0x388)
1434 This module supports multiple cards.
1435 The driver requires the firmware loader support on kernel.
1436 You need to install the firmware file "riptide.hex" to the standard
1437 firmware path (e.g. /lib/firmware).
1442 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1443 Prodif96 and Prodif Gold) sound cards.
1445 This module supports multiple cards.
1450 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1452 This module supports multiple cards.
1457 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1459 precise_ptr - Enable precise pointer (doesn't work reliably).
1462 This module supports multiple cards.
1464 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1465 module did formerly. It will allocate the buffers in advance
1466 when any RME9652 cards are found. To make the buffer
1467 allocation sure, load snd-page-alloc module in the early
1468 stage of boot sequence. See "Early Buffer Allocation"
1471 Module snd-sa11xx-uda1341 (on arm only)
1472 ---------------------------------------
1474 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1476 Module supports only one card.
1477 Module has no enable and index options.
1479 The power-management is supported.
1484 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1488 port - port # for SB DSP chip (0x220,0x240,0x260)
1489 irq - IRQ # for SB DSP chip (5,7,9,10)
1490 dma8 - DMA # for SB DSP chip (1,3)
1492 This module supports multiple cards and autoprobe.
1494 The power-management is supported.
1496 Module snd-sb16 and snd-sbawe
1497 -----------------------------
1499 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1500 SoundBlaster AWE 32 (PnP),
1501 SoundBlaster AWE 64 PnP
1503 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1504 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1505 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1506 (snd-sbawe module only)
1507 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1508 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1509 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1510 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1511 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1512 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1514 This module supports multiple cards, autoprobe and ISA PnP.
1516 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1517 disable 16bit DMA with dma16 = -1 module parameter.
1518 Also, all Sound Blaster 16 type cards can operate in 16-bit
1519 half duplex mode through 8-bit DMA channel by disabling their
1522 The power-management is supported.
1527 Module for Aztech Sound Galaxy sound card.
1529 sbport - Port # for SB16 interface (0x220,0x240)
1530 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1531 irq - IRQ # (7,9,10,11)
1534 This module supports multiple cards.
1536 The power-management is supported.
1541 Module for ENSONIQ SoundScape PnP cards.
1543 port - Port # (PnP setup)
1544 irq - IRQ # (PnP setup)
1545 mpu_irq - MPU-401 IRQ # (PnP setup)
1546 dma - DMA # (PnP setup)
1548 This module supports multiple cards. ISA PnP must be enabled.
1549 You need sscape_ctl tool in alsa-tools package for loading
1552 Module snd-sun-amd7930 (on sparc only)
1553 --------------------------------------
1555 Module for AMD7930 sound chips found on Sparcs.
1557 This module supports multiple cards.
1559 Module snd-sun-cs4231 (on sparc only)
1560 -------------------------------------
1562 Module for CS4231 sound chips found on Sparcs.
1564 This module supports multiple cards.
1566 Module snd-sun-dbri (on sparc only)
1567 -----------------------------------
1569 Module for DBRI sound chips found on Sparcs.
1571 This module supports multiple cards.
1573 Module snd-wavefront
1574 --------------------
1576 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1578 cs4232_pcm_port - Port # for CS4232 PCM interface.
1579 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1580 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1581 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1582 use_cs4232_midi - Use CS4232 MPU-401 interface
1583 (inaccessibly located inside your computer)
1584 ics2115_port - Port # for ICS2115
1585 ics2115_irq - IRQ # for ICS2115
1586 fm_port - FM OPL-3 Port #
1587 dma1 - DMA1 # for CS4232 PCM interface.
1588 dma2 - DMA2 # for CS4232 PCM interface.
1589 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1591 This module supports multiple cards and ISA PnP.
1593 Module snd-sonicvibes
1594 ---------------------
1596 Module for S3 SonicVibes PCI sound cards.
1597 * PINE Schubert 32 PCI
1599 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1600 - SoundCard must have onboard SRAM for this.
1601 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1603 This module supports multiple cards and autoprobe.
1605 Module snd-serial-u16550
1606 ------------------------
1608 Module for UART16550A serial MIDI ports.
1610 port - port # for UART16550A chip
1611 irq - IRQ # for UART16550A chip, -1 = poll mode
1612 speed - speed in bauds (9600,19200,38400,57600,115200)
1614 base - base for divisor in bauds (57600,115200,230400,460800)
1616 outs - number of MIDI ports in a serial port (1-4)
1618 adaptor - Type of adaptor.
1619 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1620 3 = MS-124W M/B, 4 = Generic
1622 This module supports multiple cards. This module does not support autoprobe
1623 thus the main port must be specified!!! Other options are optional.
1628 Module for Trident 4DWave DX/NX sound cards.
1629 * Best Union Miss Melody 4DWave PCI
1631 * Warpspeed ONSpeed 4DWave PCI
1634 * CHIC True Sound 4Dwave
1635 * Shark Predator4D-PCI
1636 * Jaton SonicWave 4D
1638 pcm_channels - max channels (voices) reserved for PCM
1639 wavetable_size - max wavetable size in kB (4-?kb)
1641 This module supports multiple cards and autoprobe.
1643 The power-management is supported.
1645 Module snd-usb-audio
1646 --------------------
1648 Module for USB audio and USB MIDI devices.
1650 vid - Vendor ID for the device (optional)
1651 pid - Product ID for the device (optional)
1652 device_setup - Device specific magic number (optional)
1653 - Influence depends on the device
1656 This module supports multiple devices, autoprobe and hotplugging.
1658 Module snd-usb-usx2y
1659 --------------------
1661 Module for Tascam USB US-122, US-224 and US-428 devices.
1663 This module supports multiple devices, autoprobe and hotplugging.
1665 Note: you need to load the firmware via usx2yloader utility included
1666 in alsa-tools and alsa-firmware packages.
1671 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1672 8233A, 8233C, 8235, 8237 (south) bridge.
1674 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1676 joystick - Enable joystick (default off) [VIA686A/686B only]
1677 ac97_clock - AC'97 codec clock base (default 48000Hz)
1678 dxs_support - support DXS channels,
1679 0 = auto (default), 1 = enable, 2 = disable,
1680 3 = 48k only, 4 = no VRA, 5 = enable any sample
1681 rate and different sample rates on different
1683 [VIA8233/C, 8235, 8237 only]
1684 ac97_quirk - AC'97 workaround for strange hardware
1685 See "AC97 Quirk Option" section below.
1687 This module supports one chip and autoprobe.
1689 Note: on some SMP motherboards like MSI 694D the interrupts might
1690 not be generated properly. In such a case, please try to
1691 set the SMP (or MPS) version on BIOS to 1.1 instead of
1692 default value 1.4. Then the interrupt number will be
1693 assigned under 15. You might also upgrade your BIOS.
1695 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1696 channels as the first PCM. On these channels, up to 4
1697 streams can be played at the same time, and the controller
1698 can perform sample rate conversion with separate rates for
1700 As default (dxs_support = 0), 48k fixed rate is chosen
1701 except for the known devices since the output is often
1702 noisy except for 48k on some mother boards due to the
1704 Please try once dxs_support=5 and if it works on other
1705 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1706 know the PCI subsystem vendor/device id's (output of
1708 If dxs_support=5 does not work, try dxs_support=4; if it
1709 doesn't work too, try dxs_support=1. (dxs_support=1 is
1710 usually for old motherboards. The correct implemented
1711 board should work with 4 or 5.) If it still doesn't
1712 work and the default setting is ok, dxs_support=3 is the
1713 right choice. If the default setting doesn't work at all,
1714 try dxs_support=2 to disable the DXS channels.
1715 In any cases, please let us know the result and the
1716 subsystem vendor/device ids. See "Links and Addresses"
1719 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1720 additionally. The mpu_port option is for VIA686 chips only.
1722 The power-management is supported.
1724 Module snd-via82xx-modem
1725 ------------------------
1727 Module for VIA82xx AC97 modem
1729 ac97_clock - AC'97 codec clock base (default 48000Hz)
1731 This module supports one card and autoprobe.
1733 Note: The default index value of this module is -2, i.e. the first
1736 The power-management is supported.
1741 Module for virtual rawmidi devices.
1742 This module creates virtual rawmidi devices which communicate
1743 to the corresponding ALSA sequencer ports.
1745 midi_devs - MIDI devices # (1-4, default=4)
1747 This module supports multiple cards.
1752 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1754 mic - Enable Microphone on V222 Mic (NYI)
1755 ibl - Capture IBL size. (default = 0, minimum size)
1757 This module supports multiple cards.
1759 When the driver is compiled as a module and the hotplug firmware
1760 is supported, the firmware data is loaded via hotplug automatically.
1761 Install the necessary firmware files in alsa-firmware package.
1762 When no hotplug fw loader is available, you need to load the
1763 firmware via vxloader utility in alsa-tools package. To invoke
1764 vxloader automatically, add the following to /etc/modprobe.conf
1766 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1768 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1769 /etc/modules.conf, instead.)
1770 IBL size defines the interrupts period for PCM. The smaller size
1771 gives smaller latency but leads to more CPU consumption, too.
1772 The size is usually aligned to 126. As default (=0), the smallest
1773 size is chosen. The possible IBL values can be found in
1774 /proc/asound/cardX/vx-status proc file.
1776 The power-management is supported.
1781 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1783 ibl - Capture IBL size. (default = 0, minimum size)
1785 This module supports multiple cards. The module is compiled only when
1786 PCMCIA is supported on kernel.
1788 With the older 2.6.x kernel, to activate the driver via the card
1789 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1790 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1791 longer require a config file.
1793 When the driver is compiled as a module and the hotplug firmware
1794 is supported, the firmware data is loaded via hotplug automatically.
1795 Install the necessary firmware files in alsa-firmware package.
1796 When no hotplug fw loader is available, you need to load the
1797 firmware via vxloader utility in alsa-tools package.
1799 About capture IBL, see the description of snd-vx222 module.
1801 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1804 The power-management is supported.
1809 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1811 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1812 1 (auto-detect for YMF744/754 only)
1813 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1814 1 (auto-detect for YMF744/754 only)
1815 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1817 rear_switch - enable shared rear/line-in switch (bool)
1819 This module supports autoprobe and multiple chips.
1821 The power-management is supported.
1823 Module snd-pdaudiocf
1824 --------------------
1826 Module for Sound Core PDAudioCF sound card.
1828 The power-management is supported.
1834 The ac97_quirk option is used to enable/override the workaround for
1835 specific devices on drivers for on-board AC'97 controllers like
1836 snd-intel8x0. Some hardware have swapped output pins between Master
1837 and Headphone, or Surround (thanks to confusion of AC'97
1838 specifications from version to version :-)
1840 The driver provides the auto-detection of known problematic devices,
1841 but some might be unknown or wrongly detected. In such a case, pass
1842 the proper value with this option.
1844 The following strings are accepted:
1845 - default Don't override the default setting
1846 - none Disable the quirk
1847 - hp_only Bind Master and Headphone controls as a single control
1848 - swap_hp Swap headphone and master controls
1849 - swap_surround Swap master and surround controls
1850 - ad_sharing For AD1985, turn on OMS bit and use headphone
1851 - alc_jack For ALC65x, turn on the jack sense mode
1852 - inv_eapd Inverted EAPD implementation
1853 - mute_led Bind EAPD bit for turning on/off mute LED
1855 For backward compatibility, the corresponding integer value -1, 0,
1856 ... are accepted, too.
1858 For example, if "Master" volume control has no effect on your device
1859 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1862 Configuring Non-ISAPNP Cards
1863 ============================
1865 When the kernel is configured with ISA-PnP support, the modules
1866 supporting the isapnp cards will have module options "isapnp".
1867 If this option is set, *only* the ISA-PnP devices will be probed.
1868 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1869 together with the proper i/o and irq configuration.
1871 When the kernel is configured without ISA-PnP support, isapnp option
1872 will be not built in.
1875 Module Autoloading Support
1876 ==========================
1878 The ALSA drivers can be loaded automatically on demand by defining
1879 module aliases. The string 'snd-card-%1' is requested for ALSA native
1880 devices where %i is sound card number from zero to seven.
1882 To auto-load an ALSA driver for OSS services, define the string
1883 'sound-slot-%i' where %i means the slot number for OSS, which
1884 corresponds to the card index of ALSA. Usually, define this
1885 as the same card module.
1887 An example configuration for a single emu10k1 card is like below:
1888 ----- /etc/modprobe.conf
1889 alias snd-card-0 snd-emu10k1
1890 alias sound-slot-0 snd-emu10k1
1891 ----- /etc/modprobe.conf
1893 The available number of auto-loaded sound cards depends on the module
1894 option "cards_limit" of snd module. As default it's set to 1.
1895 To enable the auto-loading of multiple cards, specify the number of
1896 sound cards in that option.
1898 When multiple cards are available, it'd better to specify the index
1899 number for each card via module option, too, so that the order of
1900 cards is kept consistent.
1902 An example configuration for two sound cards is like below:
1904 ----- /etc/modprobe.conf
1906 options snd cards_limit=2
1907 alias snd-card-0 snd-interwave
1908 alias snd-card-1 snd-ens1371
1909 options snd-interwave index=0
1910 options snd-ens1371 index=1
1912 alias sound-slot-0 snd-interwave
1913 alias sound-slot-1 snd-ens1371
1914 ----- /etc/modprobe.conf
1916 In this example, the interwave card is always loaded as the first card
1917 (index 0) and ens1371 as the second (index 1).
1920 ALSA PCM devices to OSS devices mapping
1921 =======================================
1923 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1924 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1925 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1926 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1927 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1928 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1929 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1930 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1931 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1933 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1934 sound card number and second means device number. The ALSA devices
1935 have either 'c' or 'p' suffix indicating the direction, capture and
1936 playback, respectively.
1938 Please note that the device mapping above may be varied via the module
1939 options of snd-pcm-oss module.
1942 Proc interfaces (/proc/asound)
1943 ==============================
1945 /proc/asound/card#/pcm#[cp]/oss
1946 -------------------------------
1947 String "erase" - erase all additional informations about OSS applications
1948 String "<app_name> <fragments> <fragment_size> [<options>]"
1950 <app_name> - name of application with (higher priority) or without path
1951 <fragments> - number of fragments or zero if auto
1952 <fragment_size> - size of fragment in bytes or zero if auto
1953 <options> - optional parameters
1954 - disable the application tries to open a pcm device for
1955 this channel but does not want to use it.
1956 (Cause a bug or mmap needs)
1957 It's good for Quake etc...
1958 - direct don't use plugins
1959 - block force block mode (rvplayer)
1960 - non-block force non-block mode
1961 - whole-frag write only whole fragments (optimization affecting
1963 - no-silence do not fill silence ahead to avoid clicks
1964 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1965 instead of filled blocks
1967 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1968 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1969 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1972 Early Buffer Allocation
1973 =======================
1975 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1976 sometimes it's too late to find such spaces when the driver module is
1977 actually loaded due to memory fragmentation. You can pre-allocate the
1978 PCM buffers by loading snd-page-alloc module and write commands to its
1979 proc file in prior, for example, in the early boot stage like
1980 /etc/init.d/*.local scripts.
1982 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1983 usage of page allocation. In writing, you can send the following
1984 commands to the snd-page-alloc driver:
1986 - add VENDOR DEVICE MASK SIZE BUFFERS
1988 VENDOR and DEVICE are PCI vendor and device IDs. They take
1989 integer numbers (0x prefix is needed for the hex).
1990 MASK is the PCI DMA mask. Pass 0 if not restricted.
1991 SIZE is the size of each buffer to allocate. You can pass
1992 k and m suffix for KB and MB. The max number is 16MB.
1993 BUFFERS is the number of buffers to allocate. It must be greater
1994 than 0. The max number is 4.
1998 This will erase the all pre-allocated buffers which are not in
2005 ALSA project homepage
2006 http://www.alsa-project.org
2008 ALSA Bug Tracking System
2009 https://bugtrack.alsa-project.org/bugs/
2012 mailto:alsa-devel@lists.sourceforge.net