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
894 ref Reference board, base config
895 m2-2 Some Gateway MX series laptops
896 m6 Some Gateway NX series laptops
898 STAC9227/9228/9229/927x
901 5stack D965 5stack + SPDIF
904 vaio Setup for VAIO FE550G/SZ110
905 vaio-ar Setup for VAIO AR
907 If the default configuration doesn't work and one of the above
908 matches with your device, report it together with the PCI
909 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
910 ML (see the section "Links and Addresses").
912 Note 2: If you get click noises on output, try the module option
913 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
914 register value without FIFO size correction as the current
915 DMA pointer. position_fix=2 will make the driver to use
916 the position buffer instead of reading SD_LPIB register.
917 (Usually SD_LPLIB register is more accurate than the
920 NB: If you get many "azx_get_response timeout" messages at
921 loading, it's likely a problem of interrupts (e.g. ACPI irq
922 routing). Try to boot with options like "pci=noacpi". Also, you
923 can try "single_cmd=1" module option. This will switch the
924 communication method between HDA controller and codecs to the
925 single immediate commands instead of CORB/RIRB. Basically, the
926 single command mode is provided only for BIOS, and you won't get
927 unsolicited events, too. But, at least, this works independently
928 from the irq. Remember this is a last resort, and should be
929 avoided as much as possible...
931 The power-management is supported.
936 Module for RME Hammerfall DSP audio interface(s)
938 This module supports multiple cards.
940 Note: The firmware data can be automatically loaded via hotplug
941 when CONFIG_FW_LOADER is set. Otherwise, you need to load
942 the firmware via hdsploader utility included in alsa-tools
944 The firmware data is found in alsa-firmware package.
946 Note: snd-page-alloc module does the job which snd-hammerfall-mem
947 module did formerly. It will allocate the buffers in advance
948 when any HDSP cards are found. To make the buffer
949 allocation sure, load snd-page-alloc module in the early
950 stage of boot sequence. See "Early Buffer Allocation"
956 Module for RME HDSP MADI board.
958 precise_ptr - Enable precise pointer, or disable.
959 line_outs_monitor - Send playback streams to analog outs by default.
960 enable_monitor - Enable Analog Out on Channel 63/64 by default.
962 See hdspm.txt for details.
967 Module for Envy24 (ICE1712) based PCI sound cards.
968 * MidiMan M Audio Delta 1010
969 * MidiMan M Audio Delta 1010LT
970 * MidiMan M Audio Delta DiO 2496
971 * MidiMan M Audio Delta 66
972 * MidiMan M Audio Delta 44
973 * MidiMan M Audio Delta 410
974 * MidiMan M Audio Audiophile 2496
980 * Hoontech SoundTrack DSP 24
981 * Hoontech SoundTrack DSP 24 Value
982 * Hoontech SoundTrack DSP 24 Media 7.1
983 * Event Electronics, EZ8
985 * Lionstracs, Mediastaton
987 model - Use the given board model, one of the following:
988 delta1010, dio2496, delta66, delta44, audiophile, delta410,
989 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
990 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
991 phase88, mediastation
992 omni - Omni I/O support for MidiMan M-Audio Delta44/66
993 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
994 in msec resolution, default value is 500 (0.5 sec)
996 This module supports multiple cards and autoprobe. Note: The consumer part
997 is not used with all Envy24 based cards (for example in the MidiMan Delta
1000 Note: The supported board is detected by reading EEPROM or PCI
1001 SSID (if EEPROM isn't available). You can override the
1002 model by passing "model" module option in case that the
1003 driver isn't configured properly or you want to try another
1009 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1010 * MidiMan M Audio Revolution 5.1
1011 * MidiMan M Audio Revolution 7.1
1012 * MidiMan M Audio Audiophile 192
1014 * TerraTec Aureon 5.1 Sky
1015 * TerraTec Aureon 7.1 Space
1016 * TerraTec Aureon 7.1 Universe
1019 * AudioTrak Prodigy 7.1
1020 * AudioTrak Prodigy 7.1LT
1021 * AudioTrak Prodigy 192
1023 * Albatron K8X800 Pro II
1024 * Chaintech ZNF3-150
1025 * Chaintech ZNF3-250
1030 model - Use the given board model, one of the following:
1031 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1032 prodigy192, aureon51, aureon71, universe, ap192,
1033 k8x800, phase22, phase28, ms300, av710
1035 This module supports multiple cards and autoprobe.
1037 Note: The supported board is detected by reading EEPROM or PCI
1038 SSID (if EEPROM isn't available). You can override the
1039 model by passing "model" module option in case that the
1040 driver isn't configured properly or you want to try another
1046 Module for Echoaudio Indigo
1048 This module supports multiple cards.
1049 The driver requires the firmware loader support on kernel.
1054 Module for Echoaudio Indigo DJ
1056 This module supports multiple cards.
1057 The driver requires the firmware loader support on kernel.
1062 Module for Echoaudio Indigo IO
1064 This module supports multiple cards.
1065 The driver requires the firmware loader support on kernel.
1070 Module for AC'97 motherboards from Intel and compatibles.
1071 * Intel i810/810E, i815, i820, i830, i84x, MX440
1072 ICH5, ICH6, ICH7, ESB2
1073 * SiS 7012 (SiS 735)
1074 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1076 * AMD AMD768, AMD8111
1079 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1080 ac97_quirk - AC'97 workaround for strange hardware
1081 See "AC97 Quirk Option" section below.
1082 buggy_irq - Enable workaround for buggy interrupts on some
1083 motherboards (default yes on nForce chips,
1085 buggy_semaphore - Enable workaround for hardwares with buggy
1086 semaphores (e.g. on some ASUS laptops)
1088 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1089 from the controller chip
1090 (0 = off, 1 = on, -1 = default)
1092 This module supports one chip and autoprobe.
1094 Note: the latest driver supports auto-detection of chip clock.
1095 if you still encounter too fast playback, specify the clock
1096 explicitly via the module option "ac97_clock=41194".
1098 Joystick/MIDI ports are not supported by this driver. If your
1099 motherboard has these devices, use the ns558 or snd-mpu401
1100 modules, respectively.
1102 The power-management is supported.
1104 Module snd-intel8x0m
1105 --------------------
1107 Module for Intel ICH (i8x0) chipset MC97 modems.
1108 * Intel i810/810E, i815, i820, i830, i84x, MX440
1110 * SiS 7013 (SiS 735)
1111 * NVidia NForce, NForce2, NForce2s, NForce3
1115 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1117 This module supports one card and autoprobe.
1119 Note: The default index value of this module is -2, i.e. the first
1122 The power-management is supported.
1124 Module snd-interwave
1125 --------------------
1127 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1128 and other sound cards based on AMD InterWave (tm) chip.
1130 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1131 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1132 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1133 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1134 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1135 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1136 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1137 effect - 1 = InterWave effects enable (default 0);
1140 This module supports multiple cards, autoprobe and ISA PnP.
1142 Module snd-interwave-stb
1143 ------------------------
1145 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1146 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1147 circuit for extended control of bass, treble and master volume.
1149 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1150 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1151 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1152 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1153 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1154 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1155 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1156 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1157 effect - 1 = InterWave effects enable (default 0);
1160 This module supports multiple cards, autoprobe and ISA PnP.
1165 Module for Korg 1212 IO PCI card
1167 This module supports multiple cards.
1172 Module for Echoaudio Layla20
1174 This module supports multiple cards.
1175 The driver requires the firmware loader support on kernel.
1180 Module for Echoaudio Layla24
1182 This module supports multiple cards.
1183 The driver requires the firmware loader support on kernel.
1188 Module for Allegro/Maestro3 chips
1190 external_amp - enable external amp (enabled by default)
1191 amp_gpio - GPIO pin number for external amp (0-15) or
1192 -1 for default pin (8 for allegro, 1 for
1195 This module supports autoprobe and multiple chips.
1197 Note: the binding of amplifier is dependent on hardware.
1198 If there is no sound even though all channels are unmuted, try to
1199 specify other gpio connection via amp_gpio option.
1200 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1203 The power-management is supported.
1208 Module for Echoaudio Mia
1210 This module supports multiple cards.
1211 The driver requires the firmware loader support on kernel.
1216 Module for Miro soundcards: miroSOUND PCM 1 pro,
1218 miroSOUND PCM 20 Radio.
1220 port - Port # (0x530,0x604,0xe80,0xf40)
1221 irq - IRQ # (5,7,9,10,11)
1222 dma1 - 1st dma # (0,1,3)
1223 dma2 - 2nd dma # (0,1)
1224 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1225 mpu_irq - MPU-401 irq # (5,7,9,10)
1226 fm_port - FM Port # (0x388)
1227 wss - enable WSS mode
1228 ide - enable onboard ide support
1233 Module for Digigram miXart8 sound cards.
1235 This module supports multiple cards.
1236 Note: One miXart8 board will be represented as 4 alsa cards.
1237 See MIXART.txt for details.
1239 When the driver is compiled as a module and the hotplug firmware
1240 is supported, the firmware data is loaded via hotplug automatically.
1241 Install the necessary firmware files in alsa-firmware package.
1242 When no hotplug fw loader is available, you need to load the
1243 firmware via mixartloader utility in alsa-tools package.
1248 Module for Echoaudio Mona
1250 This module supports multiple cards.
1251 The driver requires the firmware loader support on kernel.
1256 Module for MPU-401 UART devices.
1258 port - port number or -1 (disable)
1259 irq - IRQ number or -1 (disable)
1260 pnp - PnP detection - 0 = disable, 1 = enable (default)
1262 This module supports multiple devices and PnP.
1267 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1270 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1271 irq - IRQ # for MTPAV (7,5, default=7)
1272 hwports - number of supported hardware ports, default=8.
1274 Module supports only 1 card. This module has no enable option.
1279 Module for Ego Systems (ESI) Miditerminal 4140
1281 This module supports multiple devices.
1282 Requires parport (CONFIG_PARPORT).
1287 Module for NeoMagic NM256AV/ZX chips
1289 playback_bufsize - max playback frame size in kB (4-128kB)
1290 capture_bufsize - max capture frame size in kB (4-128kB)
1291 force_ac97 - 0 or 1 (disabled by default)
1292 buffer_top - specify buffer top address
1293 use_cache - 0 or 1 (disabled by default)
1294 vaio_hack - alias buffer_top=0x25a800
1295 reset_workaround - enable AC97 RESET workaround for some laptops
1296 reset_workaround2 - enable extended AC97 RESET workaround for some
1299 This module supports one chip and autoprobe.
1301 The power-management is supported.
1303 Note: on some notebooks the buffer address cannot be detected
1304 automatically, or causes hang-up during initialization.
1305 In such a case, specify the buffer top address explicitly via
1306 the buffer_top option.
1308 Sony F250: buffer_top=0x25a800
1309 Sony F270: buffer_top=0x272800
1310 The driver supports only ac97 codec. It's possible to force
1311 to initialize/use ac97 although it's not detected. In such a
1312 case, use force_ac97=1 option - but *NO* guarantee whether it
1315 Note: The NM256 chip can be linked internally with non-AC97
1316 codecs. This driver supports only the AC97 codec, and won't work
1317 with machines with other (most likely CS423x or OPL3SAx) chips,
1318 even though the device is detected in lspci. In such a case, try
1319 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1320 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1321 and proper hardware parameters in the case without ISA PnP.
1323 Note: some laptops need a workaround for AC97 RESET. For the
1324 known hardware like Dell Latitude LS and Sony PCG-F305, this
1325 workaround is enabled automatically. For other laptops with a
1326 hard freeze, you can try reset_workaround=1 option.
1328 Note: Dell Latitude CSx laptops have another problem regarding
1329 AC97 RESET. On these laptops, reset_workaround2 option is
1330 turned on as default. This option is worth to try if the
1331 previous reset_workaround option doesn't help.
1333 Note: This driver is really crappy. It's a porting from the
1334 OSS driver, which is a result of black-magic reverse engineering.
1335 The detection of codec will fail if the driver is loaded *after*
1336 X-server as described above. You might be able to force to load
1337 the module, but it may result in hang-up. Hence, make sure that
1338 you load this module *before* X if you encounter this kind of
1344 Module for Yamaha OPL3-SA2/SA3 sound cards.
1346 port - control port # for OPL3-SA chip (0x370)
1347 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1348 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1349 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1350 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1351 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1352 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1353 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1354 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1356 This module supports multiple cards and ISA PnP. It does not support
1357 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1359 The power-management is supported.
1361 Module snd-opti92x-ad1848
1362 -------------------------
1364 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1365 Module works with OAK Mozart cards as well.
1367 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1368 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1369 fm_port - port # for OPL3 device (0x388)
1370 irq - IRQ # for WSS chip (5,7,9,10,11)
1371 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1372 dma1 - first DMA # for WSS chip (0,1,3)
1374 This module supports only one card, autoprobe and PnP.
1376 Module snd-opti92x-cs4231
1377 -------------------------
1379 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1381 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1382 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1383 fm_port - port # for OPL3 device (0x388)
1384 irq - IRQ # for WSS chip (5,7,9,10,11)
1385 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1386 dma1 - first DMA # for WSS chip (0,1,3)
1387 dma2 - second DMA # for WSS chip (0,1,3)
1389 This module supports only one card, autoprobe and PnP.
1394 Module for sound cards based on OPTi 82c93x chips.
1396 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1397 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1398 fm_port - port # for OPL3 device (0x388)
1399 irq - IRQ # for WSS chip (5,7,9,10,11)
1400 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1401 dma1 - first DMA # for WSS chip (0,1,3)
1402 dma2 - second DMA # for WSS chip (0,1,3)
1404 This module supports only one card, autoprobe and PnP.
1409 Module for Digigram PCXHR boards
1411 This module supports multiple cards.
1413 Module snd-powermac (on ppc only)
1414 ---------------------------------
1416 Module for PowerMac, iMac and iBook on-board soundchips
1418 enable_beep - enable beep using PCM (enabled as default)
1420 Module supports autoprobe a chip.
1422 Note: the driver may have problems regarding endianess.
1424 The power-management is supported.
1426 Module snd-pxa2xx-ac97 (on arm only)
1427 ------------------------------------
1429 Module for AC97 driver for the Intel PXA2xx chip
1431 For ARM architecture only.
1433 The power-management is supported.
1438 Module for Conexant Riptide chip
1440 joystick_port - Joystick port # (default: 0x200)
1441 mpu_port - MPU401 port # (default: 0x330)
1442 opl3_port - OPL3 port # (default: 0x388)
1444 This module supports multiple cards.
1445 The driver requires the firmware loader support on kernel.
1446 You need to install the firmware file "riptide.hex" to the standard
1447 firmware path (e.g. /lib/firmware).
1452 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1453 Prodif96 and Prodif Gold) sound cards.
1455 This module supports multiple cards.
1460 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1462 This module supports multiple cards.
1467 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1469 precise_ptr - Enable precise pointer (doesn't work reliably).
1472 This module supports multiple cards.
1474 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1475 module did formerly. It will allocate the buffers in advance
1476 when any RME9652 cards are found. To make the buffer
1477 allocation sure, load snd-page-alloc module in the early
1478 stage of boot sequence. See "Early Buffer Allocation"
1481 Module snd-sa11xx-uda1341 (on arm only)
1482 ---------------------------------------
1484 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1486 Module supports only one card.
1487 Module has no enable and index options.
1489 The power-management is supported.
1494 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1498 port - port # for SB DSP chip (0x220,0x240,0x260)
1499 irq - IRQ # for SB DSP chip (5,7,9,10)
1500 dma8 - DMA # for SB DSP chip (1,3)
1502 This module supports multiple cards and autoprobe.
1504 The power-management is supported.
1506 Module snd-sb16 and snd-sbawe
1507 -----------------------------
1509 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1510 SoundBlaster AWE 32 (PnP),
1511 SoundBlaster AWE 64 PnP
1513 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1514 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1515 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1516 (snd-sbawe module only)
1517 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1518 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1519 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1520 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1521 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1522 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1524 This module supports multiple cards, autoprobe and ISA PnP.
1526 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1527 disable 16bit DMA with dma16 = -1 module parameter.
1528 Also, all Sound Blaster 16 type cards can operate in 16-bit
1529 half duplex mode through 8-bit DMA channel by disabling their
1532 The power-management is supported.
1537 Module for Aztech Sound Galaxy sound card.
1539 sbport - Port # for SB16 interface (0x220,0x240)
1540 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1541 irq - IRQ # (7,9,10,11)
1544 This module supports multiple cards.
1546 The power-management is supported.
1551 Module for ENSONIQ SoundScape PnP cards.
1553 port - Port # (PnP setup)
1554 irq - IRQ # (PnP setup)
1555 mpu_irq - MPU-401 IRQ # (PnP setup)
1556 dma - DMA # (PnP setup)
1558 This module supports multiple cards. ISA PnP must be enabled.
1559 You need sscape_ctl tool in alsa-tools package for loading
1562 Module snd-sun-amd7930 (on sparc only)
1563 --------------------------------------
1565 Module for AMD7930 sound chips found on Sparcs.
1567 This module supports multiple cards.
1569 Module snd-sun-cs4231 (on sparc only)
1570 -------------------------------------
1572 Module for CS4231 sound chips found on Sparcs.
1574 This module supports multiple cards.
1576 Module snd-sun-dbri (on sparc only)
1577 -----------------------------------
1579 Module for DBRI sound chips found on Sparcs.
1581 This module supports multiple cards.
1583 Module snd-wavefront
1584 --------------------
1586 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1588 cs4232_pcm_port - Port # for CS4232 PCM interface.
1589 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1590 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1591 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1592 use_cs4232_midi - Use CS4232 MPU-401 interface
1593 (inaccessibly located inside your computer)
1594 ics2115_port - Port # for ICS2115
1595 ics2115_irq - IRQ # for ICS2115
1596 fm_port - FM OPL-3 Port #
1597 dma1 - DMA1 # for CS4232 PCM interface.
1598 dma2 - DMA2 # for CS4232 PCM interface.
1599 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1601 This module supports multiple cards and ISA PnP.
1603 Module snd-sonicvibes
1604 ---------------------
1606 Module for S3 SonicVibes PCI sound cards.
1607 * PINE Schubert 32 PCI
1609 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1610 - SoundCard must have onboard SRAM for this.
1611 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1613 This module supports multiple cards and autoprobe.
1615 Module snd-serial-u16550
1616 ------------------------
1618 Module for UART16550A serial MIDI ports.
1620 port - port # for UART16550A chip
1621 irq - IRQ # for UART16550A chip, -1 = poll mode
1622 speed - speed in bauds (9600,19200,38400,57600,115200)
1624 base - base for divisor in bauds (57600,115200,230400,460800)
1626 outs - number of MIDI ports in a serial port (1-4)
1628 adaptor - Type of adaptor.
1629 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1630 3 = MS-124W M/B, 4 = Generic
1632 This module supports multiple cards. This module does not support autoprobe
1633 thus the main port must be specified!!! Other options are optional.
1638 Module for Trident 4DWave DX/NX sound cards.
1639 * Best Union Miss Melody 4DWave PCI
1641 * Warpspeed ONSpeed 4DWave PCI
1644 * CHIC True Sound 4Dwave
1645 * Shark Predator4D-PCI
1646 * Jaton SonicWave 4D
1648 pcm_channels - max channels (voices) reserved for PCM
1649 wavetable_size - max wavetable size in kB (4-?kb)
1651 This module supports multiple cards and autoprobe.
1653 The power-management is supported.
1655 Module snd-usb-audio
1656 --------------------
1658 Module for USB audio and USB MIDI devices.
1660 vid - Vendor ID for the device (optional)
1661 pid - Product ID for the device (optional)
1662 device_setup - Device specific magic number (optional)
1663 - Influence depends on the device
1666 This module supports multiple devices, autoprobe and hotplugging.
1668 Module snd-usb-usx2y
1669 --------------------
1671 Module for Tascam USB US-122, US-224 and US-428 devices.
1673 This module supports multiple devices, autoprobe and hotplugging.
1675 Note: you need to load the firmware via usx2yloader utility included
1676 in alsa-tools and alsa-firmware packages.
1681 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1682 8233A, 8233C, 8235, 8237 (south) bridge.
1684 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1686 joystick - Enable joystick (default off) [VIA686A/686B only]
1687 ac97_clock - AC'97 codec clock base (default 48000Hz)
1688 dxs_support - support DXS channels,
1689 0 = auto (default), 1 = enable, 2 = disable,
1690 3 = 48k only, 4 = no VRA, 5 = enable any sample
1691 rate and different sample rates on different
1693 [VIA8233/C, 8235, 8237 only]
1694 ac97_quirk - AC'97 workaround for strange hardware
1695 See "AC97 Quirk Option" section below.
1697 This module supports one chip and autoprobe.
1699 Note: on some SMP motherboards like MSI 694D the interrupts might
1700 not be generated properly. In such a case, please try to
1701 set the SMP (or MPS) version on BIOS to 1.1 instead of
1702 default value 1.4. Then the interrupt number will be
1703 assigned under 15. You might also upgrade your BIOS.
1705 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1706 channels as the first PCM. On these channels, up to 4
1707 streams can be played at the same time, and the controller
1708 can perform sample rate conversion with separate rates for
1710 As default (dxs_support = 0), 48k fixed rate is chosen
1711 except for the known devices since the output is often
1712 noisy except for 48k on some mother boards due to the
1714 Please try once dxs_support=5 and if it works on other
1715 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1716 know the PCI subsystem vendor/device id's (output of
1718 If dxs_support=5 does not work, try dxs_support=4; if it
1719 doesn't work too, try dxs_support=1. (dxs_support=1 is
1720 usually for old motherboards. The correct implemented
1721 board should work with 4 or 5.) If it still doesn't
1722 work and the default setting is ok, dxs_support=3 is the
1723 right choice. If the default setting doesn't work at all,
1724 try dxs_support=2 to disable the DXS channels.
1725 In any cases, please let us know the result and the
1726 subsystem vendor/device ids. See "Links and Addresses"
1729 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1730 additionally. The mpu_port option is for VIA686 chips only.
1732 The power-management is supported.
1734 Module snd-via82xx-modem
1735 ------------------------
1737 Module for VIA82xx AC97 modem
1739 ac97_clock - AC'97 codec clock base (default 48000Hz)
1741 This module supports one card and autoprobe.
1743 Note: The default index value of this module is -2, i.e. the first
1746 The power-management is supported.
1751 Module for virtual rawmidi devices.
1752 This module creates virtual rawmidi devices which communicate
1753 to the corresponding ALSA sequencer ports.
1755 midi_devs - MIDI devices # (1-4, default=4)
1757 This module supports multiple cards.
1762 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1764 mic - Enable Microphone on V222 Mic (NYI)
1765 ibl - Capture IBL size. (default = 0, minimum size)
1767 This module supports multiple cards.
1769 When the driver is compiled as a module and the hotplug firmware
1770 is supported, the firmware data is loaded via hotplug automatically.
1771 Install the necessary firmware files in alsa-firmware package.
1772 When no hotplug fw loader is available, you need to load the
1773 firmware via vxloader utility in alsa-tools package. To invoke
1774 vxloader automatically, add the following to /etc/modprobe.conf
1776 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1778 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1779 /etc/modules.conf, instead.)
1780 IBL size defines the interrupts period for PCM. The smaller size
1781 gives smaller latency but leads to more CPU consumption, too.
1782 The size is usually aligned to 126. As default (=0), the smallest
1783 size is chosen. The possible IBL values can be found in
1784 /proc/asound/cardX/vx-status proc file.
1786 The power-management is supported.
1791 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1793 ibl - Capture IBL size. (default = 0, minimum size)
1795 This module supports multiple cards. The module is compiled only when
1796 PCMCIA is supported on kernel.
1798 With the older 2.6.x kernel, to activate the driver via the card
1799 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1800 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1801 longer require a config file.
1803 When the driver is compiled as a module and the hotplug firmware
1804 is supported, the firmware data is loaded via hotplug automatically.
1805 Install the necessary firmware files in alsa-firmware package.
1806 When no hotplug fw loader is available, you need to load the
1807 firmware via vxloader utility in alsa-tools package.
1809 About capture IBL, see the description of snd-vx222 module.
1811 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1814 The power-management is supported.
1819 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1821 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1822 1 (auto-detect for YMF744/754 only)
1823 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1824 1 (auto-detect for YMF744/754 only)
1825 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1827 rear_switch - enable shared rear/line-in switch (bool)
1829 This module supports autoprobe and multiple chips.
1831 The power-management is supported.
1833 Module snd-pdaudiocf
1834 --------------------
1836 Module for Sound Core PDAudioCF sound card.
1838 The power-management is supported.
1844 The ac97_quirk option is used to enable/override the workaround for
1845 specific devices on drivers for on-board AC'97 controllers like
1846 snd-intel8x0. Some hardware have swapped output pins between Master
1847 and Headphone, or Surround (thanks to confusion of AC'97
1848 specifications from version to version :-)
1850 The driver provides the auto-detection of known problematic devices,
1851 but some might be unknown or wrongly detected. In such a case, pass
1852 the proper value with this option.
1854 The following strings are accepted:
1855 - default Don't override the default setting
1856 - none Disable the quirk
1857 - hp_only Bind Master and Headphone controls as a single control
1858 - swap_hp Swap headphone and master controls
1859 - swap_surround Swap master and surround controls
1860 - ad_sharing For AD1985, turn on OMS bit and use headphone
1861 - alc_jack For ALC65x, turn on the jack sense mode
1862 - inv_eapd Inverted EAPD implementation
1863 - mute_led Bind EAPD bit for turning on/off mute LED
1865 For backward compatibility, the corresponding integer value -1, 0,
1866 ... are accepted, too.
1868 For example, if "Master" volume control has no effect on your device
1869 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1872 Configuring Non-ISAPNP Cards
1873 ============================
1875 When the kernel is configured with ISA-PnP support, the modules
1876 supporting the isapnp cards will have module options "isapnp".
1877 If this option is set, *only* the ISA-PnP devices will be probed.
1878 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1879 together with the proper i/o and irq configuration.
1881 When the kernel is configured without ISA-PnP support, isapnp option
1882 will be not built in.
1885 Module Autoloading Support
1886 ==========================
1888 The ALSA drivers can be loaded automatically on demand by defining
1889 module aliases. The string 'snd-card-%1' is requested for ALSA native
1890 devices where %i is sound card number from zero to seven.
1892 To auto-load an ALSA driver for OSS services, define the string
1893 'sound-slot-%i' where %i means the slot number for OSS, which
1894 corresponds to the card index of ALSA. Usually, define this
1895 as the same card module.
1897 An example configuration for a single emu10k1 card is like below:
1898 ----- /etc/modprobe.conf
1899 alias snd-card-0 snd-emu10k1
1900 alias sound-slot-0 snd-emu10k1
1901 ----- /etc/modprobe.conf
1903 The available number of auto-loaded sound cards depends on the module
1904 option "cards_limit" of snd module. As default it's set to 1.
1905 To enable the auto-loading of multiple cards, specify the number of
1906 sound cards in that option.
1908 When multiple cards are available, it'd better to specify the index
1909 number for each card via module option, too, so that the order of
1910 cards is kept consistent.
1912 An example configuration for two sound cards is like below:
1914 ----- /etc/modprobe.conf
1916 options snd cards_limit=2
1917 alias snd-card-0 snd-interwave
1918 alias snd-card-1 snd-ens1371
1919 options snd-interwave index=0
1920 options snd-ens1371 index=1
1922 alias sound-slot-0 snd-interwave
1923 alias sound-slot-1 snd-ens1371
1924 ----- /etc/modprobe.conf
1926 In this example, the interwave card is always loaded as the first card
1927 (index 0) and ens1371 as the second (index 1).
1930 ALSA PCM devices to OSS devices mapping
1931 =======================================
1933 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1934 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1935 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1936 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1937 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1938 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1939 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1940 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1941 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1943 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1944 sound card number and second means device number. The ALSA devices
1945 have either 'c' or 'p' suffix indicating the direction, capture and
1946 playback, respectively.
1948 Please note that the device mapping above may be varied via the module
1949 options of snd-pcm-oss module.
1952 Proc interfaces (/proc/asound)
1953 ==============================
1955 /proc/asound/card#/pcm#[cp]/oss
1956 -------------------------------
1957 String "erase" - erase all additional informations about OSS applications
1958 String "<app_name> <fragments> <fragment_size> [<options>]"
1960 <app_name> - name of application with (higher priority) or without path
1961 <fragments> - number of fragments or zero if auto
1962 <fragment_size> - size of fragment in bytes or zero if auto
1963 <options> - optional parameters
1964 - disable the application tries to open a pcm device for
1965 this channel but does not want to use it.
1966 (Cause a bug or mmap needs)
1967 It's good for Quake etc...
1968 - direct don't use plugins
1969 - block force block mode (rvplayer)
1970 - non-block force non-block mode
1971 - whole-frag write only whole fragments (optimization affecting
1973 - no-silence do not fill silence ahead to avoid clicks
1974 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1975 instead of filled blocks
1977 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1978 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1979 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1982 Early Buffer Allocation
1983 =======================
1985 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1986 sometimes it's too late to find such spaces when the driver module is
1987 actually loaded due to memory fragmentation. You can pre-allocate the
1988 PCM buffers by loading snd-page-alloc module and write commands to its
1989 proc file in prior, for example, in the early boot stage like
1990 /etc/init.d/*.local scripts.
1992 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1993 usage of page allocation. In writing, you can send the following
1994 commands to the snd-page-alloc driver:
1996 - add VENDOR DEVICE MASK SIZE BUFFERS
1998 VENDOR and DEVICE are PCI vendor and device IDs. They take
1999 integer numbers (0x prefix is needed for the hex).
2000 MASK is the PCI DMA mask. Pass 0 if not restricted.
2001 SIZE is the size of each buffer to allocate. You can pass
2002 k and m suffix for KB and MB. The max number is 16MB.
2003 BUFFERS is the number of buffers to allocate. It must be greater
2004 than 0. The max number is 4.
2008 This will erase the all pre-allocated buffers which are not in
2015 ALSA project homepage
2016 http://www.alsa-project.org
2018 ALSA Bug Tracking System
2019 https://bugtrack.alsa-project.org/bugs/
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