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2 Advanced Linux Sound Architecture - Driver
3 ==========================================
4 Configuration guide
7 Kernel Configuration
8 ====================
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
27 using isapnptools.
30 Creating ALSA devices
31 =====================
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'.
38 Module parameters
39 =================
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.
47 Module snd
48 ----------
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
54 - Default: 116
55 cards_limit
56 - limiting card index for auto-loading (1-8)
57 - Default: 1
58 - For auto-loading more than one card, specify this
59 option together with snd-card-X aliases.
60 slots - Reserve the slot index for the given driver.
61 This option takes multiple strings.
62 See "Module Autoloading Support" section for details.
64 Module snd-pcm-oss
65 ------------------
67 The PCM OSS emulation module.
68 This module takes options which change the mapping of devices.
70 dsp_map - PCM device number maps assigned to the 1st OSS device.
71 - Default: 0
72 adsp_map - PCM device number maps assigned to the 2st OSS device.
73 - Default: 1
74 nonblock_open
75 - Don't block opening busy PCM devices. Default: 1
77 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
78 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
79 to PCM #0 of the card #0.
80 For changing the second or later card, specify the option with
81 commas, such like "dsp_map=0,1".
83 nonblock_open option is used to change the behavior of the PCM
84 regarding opening the device. When this option is non-zero,
85 opening a busy OSS PCM device won't be blocked but return
86 immediately with EAGAIN (just like O_NONBLOCK flag).
88 Module snd-rawmidi
89 ------------------
91 This module takes options which change the mapping of devices.
92 similar to those of the snd-pcm-oss module.
94 midi_map - MIDI device number maps assigned to the 1st OSS device.
95 - Default: 0
96 amidi_map - MIDI device number maps assigned to the 2st OSS device.
97 - Default: 1
99 Common parameters for top sound card modules
100 --------------------------------------------
102 Each of top level sound card module takes the following options.
104 index - index (slot #) of sound card
105 - Values: 0 through 31 or negative
106 - If nonnegative, assign that index number
107 - if negative, interpret as a bitmask of permissible
108 indices; the first free permitted index is assigned
109 - Default: -1
110 id - card ID (identifier or name)
111 - Can be up to 15 characters long
112 - Default: the card type
113 - A directory by this name is created under /proc/asound/
114 containing information about the card
115 - This ID can be used instead of the index number in
116 identifying the card
117 enable - enable card
118 - Default: enabled, for PCI and ISA PnP cards
120 Module snd-adlib
121 ----------------
123 Module for AdLib FM cards.
125 port - port # for OPL chip
127 This module supports multiple cards. It does not support autoprobe, so
128 the port must be specified. For actual AdLib FM cards it will be 0x388.
129 Note that this card does not have PCM support and no mixer; only FM
130 synthesis.
132 Make sure you have "sbiload" from the alsa-tools package available and,
133 after loading the module, find out the assigned ALSA sequencer port
134 number through "sbiload -l". Example output:
136 Port Client name Port name
137 64:0 OPL2 FM synth OPL2 FM Port
139 Load the std.sb and drums.sb patches also supplied by sbiload:
141 sbiload -p 64:0 std.sb drums.sb
143 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
144 instead. To have the card produce sound, use aplaymidi from alsa-utils:
146 aplaymidi -p 64:0 foo.mid
148 Module snd-ad1816a
149 ------------------
151 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
153 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
155 This module supports multiple cards, autoprobe and PnP.
157 Module snd-ad1848
158 -----------------
160 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
162 port - port # for AD1848 chip
163 irq - IRQ # for AD1848 chip
164 dma1 - DMA # for AD1848 chip (0,1,3)
166 This module supports multiple cards. It does not support autoprobe
167 thus main port must be specified!!! Other ports are optional.
169 The power-management is supported.
171 Module snd-ad1889
172 -----------------
174 Module for Analog Devices AD1889 chips.
176 ac97_quirk - AC'97 workaround for strange hardware
177 See the description of intel8x0 module for details.
179 This module supports multiple cards.
181 Module snd-ali5451
182 ------------------
184 Module for ALi M5451 PCI chip.
186 pcm_channels - Number of hardware channels assigned for PCM
187 spdif - Support SPDIF I/O
188 - Default: disabled
190 This module supports one chip and autoprobe.
192 The power-management is supported.
194 Module snd-als100
195 -----------------
197 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
199 This module supports multiple cards, autoprobe and PnP.
201 The power-management is supported.
203 Module snd-als300
204 -----------------
206 Module for Avance Logic ALS300 and ALS300+
208 This module supports multiple cards.
210 The power-management is supported.
212 Module snd-als4000
213 ------------------
215 Module for sound cards based on Avance Logic ALS4000 PCI chip.
217 joystick_port - port # for legacy joystick support.
218 0 = disabled (default), 1 = auto-detect
220 This module supports multiple cards, autoprobe and PnP.
222 The power-management is supported.
224 Module snd-atiixp
225 -----------------
227 Module for ATI IXP 150/200/250/400 AC97 controllers.
229 ac97_clock - AC'97 clock (default = 48000)
230 ac97_quirk - AC'97 workaround for strange hardware
231 See "AC97 Quirk Option" section below.
232 ac97_codec - Workaround to specify which AC'97 codec
233 instead of probing. If this works for you
234 file a bug with your `lspci -vn` output.
235 -2 -- Force probing.
236 -1 -- Default behavior.
237 0-2 -- Use the specified codec.
238 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
240 This module supports one card and autoprobe.
242 ATI IXP has two different methods to control SPDIF output. One is
243 over AC-link and another is over the "direct" SPDIF output. The
244 implementation depends on the motherboard, and you'll need to
245 choose the correct one via spdif_aclink module option.
247 The power-management is supported.
249 Module snd-atiixp-modem
250 -----------------------
252 Module for ATI IXP 150/200/250 AC97 modem controllers.
254 This module supports one card and autoprobe.
256 Note: The default index value of this module is -2, i.e. the first
257 slot is excluded.
259 The power-management is supported.
261 Module snd-au8810, snd-au8820, snd-au8830
262 -----------------------------------------
264 Module for Aureal Vortex, Vortex2 and Advantage device.
266 pcifix - Control PCI workarounds
267 0 = Disable all workarounds
268 1 = Force the PCI latency of the Aureal card to 0xff
269 2 = Force the Extend PCI#2 Internal Master for Efficient
270 Handling of Dummy Requests on the VIA KT133 AGP Bridge
271 3 = Force both settings
272 255 = Autodetect what is required (default)
274 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
275 EQ, mpu401, gameport. A3D and wavetable support are still in development.
276 Development and reverse engineering work is being coordinated at
277 http://savannah.nongnu.org/projects/openvortex/
278 SPDIF output has a copy of the AC97 codec output, unless you use the
279 "spdif" pcm device, which allows raw data passthru.
280 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
281 Advantage.
283 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
284 control correctly. If you have problems regarding this, try
285 another ALSA compliant mixer (alsamixer works).
287 Module snd-aw2
288 --------------
290 Module for Audiowerk2 sound card
292 This module supports multiple cards.
294 Module snd-azt2320
295 ------------------
297 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
299 This module supports multiple cards, PnP and autoprobe.
301 The power-management is supported.
303 Module snd-azt3328
304 ------------------
306 Module for sound cards based on Aztech AZF3328 PCI chip.
308 joystick - Enable joystick (default off)
310 This module supports multiple cards.
312 Module snd-bt87x
313 ----------------
315 Module for video cards based on Bt87x chips.
317 digital_rate - Override the default digital rate (Hz)
318 load_all - Load the driver even if the card model isn't known
320 This module supports multiple cards.
322 Note: The default index value of this module is -2, i.e. the first
323 slot is excluded.
325 Module snd-ca0106
326 -----------------
328 Module for Creative Audigy LS and SB Live 24bit
330 This module supports multiple cards.
333 Module snd-cmi8330
334 ------------------
336 Module for sound cards based on C-Media CMI8330 ISA chips.
338 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
340 with isapnp=0, the following options are available:
342 wssport - port # for CMI8330 chip (WSS)
343 wssirq - IRQ # for CMI8330 chip (WSS)
344 wssdma - first DMA # for CMI8330 chip (WSS)
345 sbport - port # for CMI8330 chip (SB16)
346 sbirq - IRQ # for CMI8330 chip (SB16)
347 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
348 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
350 This module supports multiple cards and autoprobe.
352 The power-management is supported.
354 Module snd-cmipci
355 -----------------
357 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
359 mpu_port - port address of MIDI interface (8338 only):
360 0x300,0x310,0x320,0x330 = legacy port,
361 0 = disable (default)
362 fm_port - port address of OPL-3 FM synthesizer (8x38 only):
363 0x388 = legacy port,
364 1 = integrated PCI port (default on 8738),
365 0 = disable
366 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
367 (default = 1)
368 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
370 This module supports autoprobe and multiple cards.
372 The power-management is supported.
374 Module snd-cs4231
375 -----------------
377 Module for sound cards based on CS4231 ISA chips.
379 port - port # for CS4231 chip
380 mpu_port - port # for MPU-401 UART (optional), -1 = disable
381 irq - IRQ # for CS4231 chip
382 mpu_irq - IRQ # for MPU-401 UART
383 dma1 - first DMA # for CS4231 chip
384 dma2 - second DMA # for CS4231 chip
386 This module supports multiple cards. This module does not support autoprobe
387 thus main port must be specified!!! Other ports are optional.
389 The power-management is supported.
391 Module snd-cs4232
392 -----------------
394 Module for sound cards based on CS4232/CS4232A ISA chips.
396 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
398 with isapnp=0, the following options are available:
400 port - port # for CS4232 chip (PnP setup - 0x534)
401 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
402 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
403 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
404 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
405 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
406 dma1 - first DMA # for CS4232 chip (0,1,3)
407 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
409 This module supports multiple cards. This module does not support autoprobe
410 (if ISA PnP is not used) thus main port must be specified!!! Other ports are
411 optional.
413 The power-management is supported.
415 Module snd-cs4236
416 -----------------
418 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
419 CS4238B/CS4239 ISA chips.
421 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
423 with isapnp=0, the following options are available:
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
434 This module supports multiple cards. This module does not support autoprobe
435 (if ISA PnP is not used) thus main port and control port must be
436 specified!!! Other ports are optional.
438 The power-management is supported.
440 Module snd-cs4281
441 -----------------
443 Module for Cirrus Logic CS4281 soundchip.
445 dual_codec - Secondary codec ID (0 = disable, default)
447 This module supports multiple cards.
449 The power-management is supported.
451 Module snd-cs46xx
452 -----------------
454 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
455 CS4624/CS4630/CS4280 PCI chips.
457 external_amp - Force to enable external amplifier.
458 thinkpad - Force to enable Thinkpad's CLKRUN control.
459 mmap_valid - Support OSS mmap mode (default = 0).
461 This module supports multiple cards and autoprobe.
462 Usually external amp and CLKRUN controls are detected automatically
463 from PCI sub vendor/device ids. If they don't work, give the options
464 above explicitly.
466 The power-management is supported.
468 Module snd-cs5530
469 _________________
471 Module for Cyrix/NatSemi Geode 5530 chip.
473 Module snd-cs5535audio
474 ----------------------
476 Module for multifunction CS5535 companion PCI device
478 The power-management is supported.
480 Module snd-darla20
481 ------------------
483 Module for Echoaudio Darla20
485 This module supports multiple cards.
486 The driver requires the firmware loader support on kernel.
488 Module snd-darla24
489 ------------------
491 Module for Echoaudio Darla24
493 This module supports multiple cards.
494 The driver requires the firmware loader support on kernel.
496 Module snd-dt019x
497 -----------------
499 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
500 only)
502 This module supports multiple cards. This module is enabled only with
503 ISA PnP support.
505 The power-management is supported.
507 Module snd-dummy
508 ----------------
510 Module for the dummy sound card. This "card" doesn't do any output
511 or input, but you may use this module for any application which
512 requires a sound card (like RealPlayer).
514 The power-management is supported.
516 Module snd-echo3g
517 -----------------
519 Module for Echoaudio 3G cards (Gina3G/Layla3G)
521 This module supports multiple cards.
522 The driver requires the firmware loader support on kernel.
524 Module snd-emu10k1
525 ------------------
527 Module for EMU10K1/EMU10k2 based PCI sound cards.
528 * Sound Blaster Live!
529 * Sound Blaster PCI 512
530 * Emu APS (partially supported)
531 * Sound Blaster Audigy
533 extin - bitmap of available external inputs for FX8010 (see bellow)
534 extout - bitmap of available external outputs for FX8010 (see bellow)
535 seq_ports - allocated sequencer ports (4 by default)
536 max_synth_voices - limit of voices used for wavetable (64 by default)
537 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
538 given in MB unit. Default value is 128.
539 enable_ir - enable IR
541 This module supports multiple cards and autoprobe.
543 Input & Output configurations [extin/extout]
544 * Creative Card wo/Digital out [0x0003/0x1f03]
545 * Creative Card w/Digital out [0x0003/0x1f0f]
546 * Creative Card w/Digital CD in [0x000f/0x1f0f]
547 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
548 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
549 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
550 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
551 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
552 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
553 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
554 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
555 * Creative Card all ins and outs [0x3fff/0x7fff]
557 The power-management is supported.
559 Module snd-emu10k1x
560 -------------------
562 Module for Creative Emu10k1X (SB Live Dell OEM version)
564 This module supports multiple cards.
566 Module snd-ens1370
567 ------------------
569 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
570 * SoundBlaster PCI 64
571 * SoundBlaster PCI 128
573 joystick - Enable joystick (default off)
575 This module supports multiple cards and autoprobe.
577 The power-management is supported.
579 Module snd-ens1371
580 ------------------
582 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
583 * SoundBlaster PCI 64
584 * SoundBlaster PCI 128
585 * SoundBlaster Vibra PCI
587 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
588 0 = disable (default), 1 = auto-detect
590 This module supports multiple cards and autoprobe.
592 The power-management is supported.
594 Module snd-es968
595 ----------------
597 Module for sound cards based on ESS ES968 chip (PnP only).
599 This module supports multiple cards, PnP and autoprobe.
601 The power-management is supported.
603 Module snd-es1688
604 -----------------
606 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
608 port - port # for ES-1688 chip (0x220,0x240,0x260)
609 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
610 irq - IRQ # for ES-1688 chip (5,7,9,10)
611 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
612 dma8 - DMA # for ES-1688 chip (0,1,3)
614 This module supports multiple cards and autoprobe (without MPU-401 port).
616 Module snd-es18xx
617 -----------------
619 Module for ESS AudioDrive ES-18xx sound cards.
621 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
623 with isapnp=0, the following options are available:
625 port - port # for ES-18xx chip (0x220,0x240,0x260)
626 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
627 fm_port - port # for FM (optional, not used)
628 irq - IRQ # for ES-18xx chip (5,7,9,10)
629 dma1 - first DMA # for ES-18xx chip (0,1,3)
630 dma2 - first DMA # for ES-18xx chip (0,1,3)
632 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
633 port if native ISA PnP routines are not used).
634 When dma2 is equal with dma1, the driver works as half-duplex.
636 The power-management is supported.
638 Module snd-es1938
639 -----------------
641 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
643 This module supports multiple cards and autoprobe.
645 The power-management is supported.
647 Module snd-es1968
648 -----------------
650 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
652 total_bufsize - total buffer size in kB (1-4096kB)
653 pcm_substreams_p - playback channels (1-8, default=2)
654 pcm_substreams_c - capture channels (1-8, default=0)
655 clock - clock (0 = auto-detection)
656 use_pm - support the power-management (0 = off, 1 = on,
657 2 = auto (default))
658 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
659 joystick - enable joystick (default off)
661 This module supports multiple cards and autoprobe.
663 The power-management is supported.
665 Module snd-fm801
666 ----------------
668 Module for ForteMedia FM801 based PCI sound cards.
670 tea575x_tuner - Enable TEA575x tuner
671 - 1 = MediaForte 256-PCS
672 - 2 = MediaForte 256-PCPR
673 - 3 = MediaForte 64-PCR
674 - High 16-bits are video (radio) device number + 1
675 - example: 0x10002 (MediaForte 256-PCPR, device 1)
677 This module supports multiple cards and autoprobe.
679 The power-management is supported.
681 Module snd-gina20
682 -----------------
684 Module for Echoaudio Gina20
686 This module supports multiple cards.
687 The driver requires the firmware loader support on kernel.
689 Module snd-gina24
690 -----------------
692 Module for Echoaudio Gina24
694 This module supports multiple cards.
695 The driver requires the firmware loader support on kernel.
697 Module snd-gusclassic
698 ---------------------
700 Module for Gravis UltraSound Classic sound card.
702 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
703 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
704 dma1 - DMA # for GF1 chip (1,3,5,6,7)
705 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
706 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
707 voices - GF1 voices limit (14-32)
708 pcm_voices - reserved PCM voices
710 This module supports multiple cards and autoprobe.
712 Module snd-gusextreme
713 ---------------------
715 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
717 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
718 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
719 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
720 irq - IRQ # for ES-1688 chip (5,7,9,10)
721 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
722 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
723 dma8 - DMA # for ES-1688 chip (0,1,3)
724 dma1 - DMA # for GF1 chip (1,3,5,6,7)
725 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
726 voices - GF1 voices limit (14-32)
727 pcm_voices - reserved PCM voices
729 This module supports multiple cards and autoprobe (without MPU-401 port).
731 Module snd-gusmax
732 -----------------
734 Module for Gravis UltraSound MAX sound card.
736 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
737 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
738 dma1 - DMA # for GF1 chip (1,3,5,6,7)
739 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
740 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
741 voices - GF1 voices limit (14-32)
742 pcm_voices - reserved PCM voices
744 This module supports multiple cards and autoprobe.
746 Module snd-hda-intel
747 --------------------
749 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
750 ATI SB450, SB600, RS600,
751 VIA VT8251/VT8237A,
752 SIS966, ULI M5461
754 [Multiple options for each card instance]
755 model - force the model name
756 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
757 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
759 [Single (global) options]
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)
763 power_save - Automatic power-saving timtout (in second, 0 =
764 disable)
765 power_save_controller - Reset HD-audio controller in power-saving mode
766 (default = on)
768 This module supports multiple cards and autoprobe.
770 Each codec may have a model table for different configurations.
771 If your machine isn't listed there, the default (usually minimal)
772 configuration is set up. You can pass "model=<name>" option to
773 specify a certain model in such a case. There are different
774 models depending on the codec chip.
776 Model name Description
777 ---------- -----------
778 ALC880
779 3stack 3-jack in back and a headphone out
780 3stack-digout 3-jack in back, a HP out and a SPDIF out
781 5stack 5-jack in back, 2-jack in front
782 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
783 6stack 6-jack in back, 2-jack in front
784 6stack-digout 6-jack with a SPDIF out
785 w810 3-jack
786 z71v 3-jack (HP shared SPDIF)
787 asus 3-jack (ASUS Mobo)
788 asus-w1v ASUS W1V
789 asus-dig ASUS with SPDIF out
790 asus-dig2 ASUS with SPDIF out (using GPIO2)
791 uniwill 3-jack
792 fujitsu Fujitsu Laptops (Pi1536)
793 F1734 2-jack
794 lg LG laptop (m1 express dual)
795 lg-lw LG LW20/LW25 laptop
796 tcl TCL S700
797 clevo Clevo laptops (m520G, m665n)
798 test for testing/debugging purpose, almost all controls can be
799 adjusted. Appearing only when compiled with
800 $CONFIG_SND_DEBUG=y
801 auto auto-config reading BIOS (default)
803 ALC260
804 hp HP machines
805 hp-3013 HP machines (3013-variant)
806 fujitsu Fujitsu S7020
807 acer Acer TravelMate
808 will Will laptops (PB V7900)
809 replacer Replacer 672V
810 basic fixed pin assignment (old default model)
811 test for testing/debugging purpose, almost all controls can
812 adjusted. Appearing only when compiled with
813 $CONFIG_SND_DEBUG=y
814 auto auto-config reading BIOS (default)
816 ALC262
817 fujitsu Fujitsu Laptop
818 hp-bpc HP xw4400/6400/8400/9400 laptops
819 hp-bpc-d7000 HP BPC D7000
820 hp-tc-t5735 HP Thin Client T5735
821 hp-rp5700 HP RP5700
822 benq Benq ED8
823 benq-t31 Benq T31
824 hippo Hippo (ATI) with jack detection, Sony UX-90s
825 hippo_1 Hippo (Benq) with jack detection
826 sony-assamd Sony ASSAMD
827 ultra Samsung Q1 Ultra Vista model
828 basic fixed pin assignment w/o SPDIF
829 auto auto-config reading BIOS (default)
831 ALC268
832 3stack 3-stack model
833 toshiba Toshiba A205
834 acer Acer laptops
835 dell Dell OEM laptops (Vostro 1200)
836 zepto Zepto laptops
837 test for testing/debugging purpose, almost all controls can
838 adjusted. Appearing only when compiled with
839 $CONFIG_SND_DEBUG=y
840 auto auto-config reading BIOS (default)
842 ALC662
843 3stack-dig 3-stack (2-channel) with SPDIF
844 3stack-6ch 3-stack (6-channel)
845 3stack-6ch-dig 3-stack (6-channel) with SPDIF
846 6stack-dig 6-stack with SPDIF
847 lenovo-101e Lenovo laptop
848 eeepc-p701 ASUS Eeepc P701
849 eeepc-ep20 ASUS Eeepc EP20
850 auto auto-config reading BIOS (default)
852 ALC882/885
853 3stack-dig 3-jack with SPDIF I/O
854 6stack-dig 6-jack digital with SPDIF I/O
855 arima Arima W820Di1
856 targa Targa T8, MSI-1049 T8
857 asus-a7j ASUS A7J
858 asus-a7m ASUS A7M
859 macpro MacPro support
860 mbp3 Macbook Pro rev3
861 imac24 iMac 24'' with jack detection
862 w2jc ASUS W2JC
863 auto auto-config reading BIOS (default)
865 ALC883/888
866 3stack-dig 3-jack with SPDIF I/O
867 6stack-dig 6-jack digital with SPDIF I/O
868 3stack-6ch 3-jack 6-channel
869 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
870 6stack-dig-demo 6-jack digital for Intel demo board
871 acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
872 acer-aspire Acer Aspire 9810
873 medion Medion Laptops
874 medion-md2 Medion MD2
875 targa-dig Targa/MSI
876 targa-2ch-dig Targs/MSI with 2-channel
877 laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
878 lenovo-101e Lenovo 101E
879 lenovo-nb0763 Lenovo NB0763
880 lenovo-ms7195-dig Lenovo MS7195
881 haier-w66 Haier W66
882 6stack-hp HP machines with 6stack (Nettle boards)
883 3stack-hp HP machines with 3stack (Lucknow, Samba boards)
884 6stack-dell Dell machines with 6stack (Inspiron 530)
885 mitac Mitac 8252D
886 auto auto-config reading BIOS (default)
888 ALC861/660
889 3stack 3-jack
890 3stack-dig 3-jack with SPDIF I/O
891 6stack-dig 6-jack with SPDIF I/O
892 3stack-660 3-jack (for ALC660)
893 uniwill-m31 Uniwill M31 laptop
894 toshiba Toshiba laptop support
895 asus Asus laptop support
896 asus-laptop ASUS F2/F3 laptops
897 auto auto-config reading BIOS (default)
899 ALC861VD/660VD
900 3stack 3-jack
901 3stack-dig 3-jack with SPDIF OUT
902 6stack-dig 6-jack with SPDIF OUT
903 3stack-660 3-jack (for ALC660VD)
904 3stack-660-digout 3-jack with SPDIF OUT (for ALC660VD)
905 lenovo Lenovo 3000 C200
906 dallas Dallas laptops
907 hp HP TX1000
908 auto auto-config reading BIOS (default)
910 CMI9880
911 minimal 3-jack in back
912 min_fp 3-jack in back, 2-jack in front
913 full 6-jack in back, 2-jack in front
914 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
915 allout 5-jack in back, 2-jack in front, SPDIF out
916 auto auto-config reading BIOS (default)
918 AD1882
919 3stack 3-stack mode (default)
920 6stack 6-stack mode
922 AD1884A / AD1883 / AD1984A / AD1984B
923 desktop 3-stack desktop (default)
924 laptop laptop with HP jack sensing
925 mobile mobile devices with HP jack sensing
926 thinkpad Lenovo Thinkpad X300
928 AD1884
929 N/A
931 AD1981
932 basic 3-jack (default)
933 hp HP nx6320
934 thinkpad Lenovo Thinkpad T60/X60/Z60
935 toshiba Toshiba U205
937 AD1983
938 N/A
940 AD1984
941 basic default configuration
942 thinkpad Lenovo Thinkpad T61/X61
943 dell Dell T3400
945 AD1986A
946 6stack 6-jack, separate surrounds (default)
947 3stack 3-stack, shared surrounds
948 laptop 2-channel only (FSC V2060, Samsung M50)
949 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
950 laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)
951 ultra 2-channel with EAPD (Samsung Ultra tablet PC)
953 AD1988
954 6stack 6-jack
955 6stack-dig ditto with SPDIF
956 3stack 3-jack
957 3stack-dig ditto with SPDIF
958 laptop 3-jack with hp-jack automute
959 laptop-dig ditto with SPDIF
960 auto auto-config reading BIOS (default)
962 Conexant 5045
963 laptop-hpsense Laptop with HP sense (old model laptop)
964 laptop-micsense Laptop with Mic sense (old model fujitsu)
965 laptop-hpmicsense Laptop with HP and Mic senses
966 benq Benq R55E
967 test for testing/debugging purpose, almost all controls
968 can be adjusted. Appearing only when compiled with
969 $CONFIG_SND_DEBUG=y
971 Conexant 5047
972 laptop Basic Laptop config
973 laptop-hp Laptop config for some HP models (subdevice 30A5)
974 laptop-eapd Laptop config with EAPD support
975 test for testing/debugging purpose, almost all controls
976 can be adjusted. Appearing only when compiled with
977 $CONFIG_SND_DEBUG=y
979 Conexant 5051
980 laptop Basic Laptop config (default)
981 hp HP Spartan laptop
983 STAC9200
984 ref Reference board
985 dell-d21 Dell (unknown)
986 dell-d22 Dell (unknown)
987 dell-d23 Dell (unknown)
988 dell-m21 Dell Inspiron 630m, Dell Inspiron 640m
989 dell-m22 Dell Latitude D620, Dell Latitude D820
990 dell-m23 Dell XPS M1710, Dell Precision M90
991 dell-m24 Dell Latitude 120L
992 dell-m25 Dell Inspiron E1505n
993 dell-m26 Dell Inspiron 1501
994 dell-m27 Dell Inspiron E1705/9400
995 gateway Gateway laptops with EAPD control
996 panasonic Panasonic CF-74
998 STAC9205/9254
999 ref Reference board
1000 dell-m42 Dell (unknown)
1001 dell-m43 Dell Precision
1002 dell-m44 Dell Inspiron
1004 STAC9220/9221
1005 ref Reference board
1006 3stack D945 3stack
1007 5stack D945 5stack + SPDIF
1008 intel-mac-v1 Intel Mac Type 1
1009 intel-mac-v2 Intel Mac Type 2
1010 intel-mac-v3 Intel Mac Type 3
1011 intel-mac-v4 Intel Mac Type 4
1012 intel-mac-v5 Intel Mac Type 5
1013 macmini Intel Mac Mini (equivalent with type 3)
1014 macbook Intel Mac Book (eq. type 5)
1015 macbook-pro-v1 Intel Mac Book Pro 1st generation (eq. type 3)
1016 macbook-pro Intel Mac Book Pro 2nd generation (eq. type 3)
1017 imac-intel Intel iMac (eq. type 2)
1018 imac-intel-20 Intel iMac (newer version) (eq. type 3)
1019 dell-d81 Dell (unknown)
1020 dell-d82 Dell (unknown)
1021 dell-m81 Dell (unknown)
1022 dell-m82 Dell XPS M1210
1024 STAC9202/9250/9251
1025 ref Reference board, base config
1026 m2-2 Some Gateway MX series laptops
1027 m6 Some Gateway NX series laptops
1028 pa6 Gateway NX860 series
1030 STAC9227/9228/9229/927x
1031 ref Reference board
1032 3stack D965 3stack
1033 5stack D965 5stack + SPDIF
1034 dell-3stack Dell Dimension E520
1035 dell-bios Fixes with Dell BIOS setup
1037 STAC92HD71B*
1038 ref Reference board
1039 dell-m4-1 Dell desktops
1040 dell-m4-2 Dell desktops
1042 STAC92HD73*
1043 ref Reference board
1044 dell-m6 Dell desktops
1046 STAC9872
1047 vaio Setup for VAIO FE550G/SZ110
1048 vaio-ar Setup for VAIO AR
1050 The model name "genric" is treated as a special case. When this
1051 model is given, the driver uses the generic codec parser without
1052 "codec-patch". It's sometimes good for testing and debugging.
1054 If the default configuration doesn't work and one of the above
1055 matches with your device, report it together with the PCI
1056 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
1057 ML (see the section "Links and Addresses").
1059 power_save and power_save_controller options are for power-saving
1060 mode. See powersave.txt for details.
1062 Note 2: If you get click noises on output, try the module option
1063 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
1064 register value without FIFO size correction as the current
1065 DMA pointer. position_fix=2 will make the driver to use
1066 the position buffer instead of reading SD_LPIB register.
1067 (Usually SD_LPLIB register is more accurate than the
1068 position buffer.)
1070 NB: If you get many "azx_get_response timeout" messages at
1071 loading, it's likely a problem of interrupts (e.g. ACPI irq
1072 routing). Try to boot with options like "pci=noacpi". Also, you
1073 can try "single_cmd=1" module option. This will switch the
1074 communication method between HDA controller and codecs to the
1075 single immediate commands instead of CORB/RIRB. Basically, the
1076 single command mode is provided only for BIOS, and you won't get
1077 unsolicited events, too. But, at least, this works independently
1078 from the irq. Remember this is a last resort, and should be
1079 avoided as much as possible...
1081 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
1082 On some hardwares, you may need to add a proper probe_mask option
1083 to avoid the "azx_get_response timeout" problem above, instead.
1084 This occurs when the access to non-existing or non-working codec slot
1085 (likely a modem one) causes a stall of the communication via HD-audio
1086 bus. You can see which codec slots are probed by enabling
1087 CONFIG_SND_DEBUG_DETECT, or simply from the file name of the codec
1088 proc files. Then limit the slots to probe by probe_mask option.
1089 For example, probe_mask=1 means to probe only the first slot, and
1090 probe_mask=4 means only the third slot.
1092 The power-management is supported.
1094 Module snd-hdsp
1095 ---------------
1097 Module for RME Hammerfall DSP audio interface(s)
1099 This module supports multiple cards.
1101 Note: The firmware data can be automatically loaded via hotplug
1102 when CONFIG_FW_LOADER is set. Otherwise, you need to load
1103 the firmware via hdsploader utility included in alsa-tools
1104 package.
1105 The firmware data is found in alsa-firmware package.
1107 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1108 module did formerly. It will allocate the buffers in advance
1109 when any HDSP cards are found. To make the buffer
1110 allocation sure, load snd-page-alloc module in the early
1111 stage of boot sequence. See "Early Buffer Allocation"
1112 section.
1114 Module snd-hdspm
1115 ----------------
1117 Module for RME HDSP MADI board.
1119 precise_ptr - Enable precise pointer, or disable.
1120 line_outs_monitor - Send playback streams to analog outs by default.
1121 enable_monitor - Enable Analog Out on Channel 63/64 by default.
1123 See hdspm.txt for details.
1125 Module snd-hifier
1126 -----------------
1128 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
1130 This module supports autoprobe and multiple cards.
1132 Power management is _not_ supported.
1134 Module snd-ice1712
1135 ------------------
1137 Module for Envy24 (ICE1712) based PCI sound cards.
1138 * MidiMan M Audio Delta 1010
1139 * MidiMan M Audio Delta 1010LT
1140 * MidiMan M Audio Delta DiO 2496
1141 * MidiMan M Audio Delta 66
1142 * MidiMan M Audio Delta 44
1143 * MidiMan M Audio Delta 410
1144 * MidiMan M Audio Audiophile 2496
1145 * TerraTec EWS 88MT
1146 * TerraTec EWS 88D
1147 * TerraTec EWX 24/96
1148 * TerraTec DMX 6Fire
1149 * TerraTec Phase 88
1150 * Hoontech SoundTrack DSP 24
1151 * Hoontech SoundTrack DSP 24 Value
1152 * Hoontech SoundTrack DSP 24 Media 7.1
1153 * Event Electronics, EZ8
1154 * Digigram VX442
1155 * Lionstracs, Mediastaton
1157 model - Use the given board model, one of the following:
1158 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1159 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1160 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1161 phase88, mediastation
1162 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1163 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1164 in msec resolution, default value is 500 (0.5 sec)
1166 This module supports multiple cards and autoprobe. Note: The consumer part
1167 is not used with all Envy24 based cards (for example in the MidiMan Delta
1168 serie).
1170 Note: The supported board is detected by reading EEPROM or PCI
1171 SSID (if EEPROM isn't available). You can override the
1172 model by passing "model" module option in case that the
1173 driver isn't configured properly or you want to try another
1174 type for testing.
1176 Module snd-ice1724
1177 ------------------
1179 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1180 * MidiMan M Audio Revolution 5.1
1181 * MidiMan M Audio Revolution 7.1
1182 * MidiMan M Audio Audiophile 192
1183 * AMP Ltd AUDIO2000
1184 * TerraTec Aureon 5.1 Sky
1185 * TerraTec Aureon 7.1 Space
1186 * TerraTec Aureon 7.1 Universe
1187 * TerraTec Phase 22
1188 * TerraTec Phase 28
1189 * AudioTrak Prodigy 7.1
1190 * AudioTrak Prodigy 7.1LT
1191 * AudioTrak Prodigy 192
1192 * Pontis MS300
1193 * Albatron K8X800 Pro II
1194 * Chaintech ZNF3-150
1195 * Chaintech ZNF3-250
1196 * Chaintech 9CJS
1197 * Chaintech AV-710
1198 * Shuttle SN25P
1199 * Onkyo SE-90PCI
1200 * Onkyo SE-200PCI
1202 model - Use the given board model, one of the following:
1203 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1204 prodigy192, aureon51, aureon71, universe, ap192,
1205 k8x800, phase22, phase28, ms300, av710, se200pci,
1206 se90pci
1208 This module supports multiple cards and autoprobe.
1210 Note: The supported board is detected by reading EEPROM or PCI
1211 SSID (if EEPROM isn't available). You can override the
1212 model by passing "model" module option in case that the
1213 driver isn't configured properly or you want to try another
1214 type for testing.
1216 Module snd-indigo
1217 -----------------
1219 Module for Echoaudio Indigo
1221 This module supports multiple cards.
1222 The driver requires the firmware loader support on kernel.
1224 Module snd-indigodj
1225 -------------------
1227 Module for Echoaudio Indigo DJ
1229 This module supports multiple cards.
1230 The driver requires the firmware loader support on kernel.
1232 Module snd-indigoio
1233 -------------------
1235 Module for Echoaudio Indigo IO
1237 This module supports multiple cards.
1238 The driver requires the firmware loader support on kernel.
1240 Module snd-intel8x0
1241 -------------------
1243 Module for AC'97 motherboards from Intel and compatibles.
1244 * Intel i810/810E, i815, i820, i830, i84x, MX440
1245 ICH5, ICH6, ICH7, ESB2
1246 * SiS 7012 (SiS 735)
1247 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1248 CK8, CK8S, MCP501
1249 * AMD AMD768, AMD8111
1250 * ALi m5455
1252 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1253 ac97_quirk - AC'97 workaround for strange hardware
1254 See "AC97 Quirk Option" section below.
1255 buggy_irq - Enable workaround for buggy interrupts on some
1256 motherboards (default yes on nForce chips,
1257 otherwise off)
1258 buggy_semaphore - Enable workaround for hardwares with buggy
1259 semaphores (e.g. on some ASUS laptops)
1260 (default off)
1261 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1262 from the controller chip
1263 (0 = off, 1 = on, -1 = default)
1265 This module supports one chip and autoprobe.
1267 Note: the latest driver supports auto-detection of chip clock.
1268 if you still encounter too fast playback, specify the clock
1269 explicitly via the module option "ac97_clock=41194".
1271 Joystick/MIDI ports are not supported by this driver. If your
1272 motherboard has these devices, use the ns558 or snd-mpu401
1273 modules, respectively.
1275 The power-management is supported.
1277 Module snd-intel8x0m
1278 --------------------
1280 Module for Intel ICH (i8x0) chipset MC97 modems.
1281 * Intel i810/810E, i815, i820, i830, i84x, MX440
1282 ICH5, ICH6, ICH7
1283 * SiS 7013 (SiS 735)
1284 * NVidia NForce, NForce2, NForce2s, NForce3
1285 * AMD AMD8111
1286 * ALi m5455
1288 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1290 This module supports one card and autoprobe.
1292 Note: The default index value of this module is -2, i.e. the first
1293 slot is excluded.
1295 The power-management is supported.
1297 Module snd-interwave
1298 --------------------
1300 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1301 and other sound cards based on AMD InterWave (tm) chip.
1303 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1304 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1305 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1306 effect - 1 = InterWave effects enable (default 0);
1307 requires 8 voices
1308 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1310 with isapnp=0, the following options are available:
1312 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1313 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1314 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1315 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1317 This module supports multiple cards, autoprobe and ISA PnP.
1319 Module snd-interwave-stb
1320 ------------------------
1322 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1323 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1324 circuit for extended control of bass, treble and master volume.
1326 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1327 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1328 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1329 effect - 1 = InterWave effects enable (default 0);
1330 requires 8 voices
1331 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1333 with isapnp=0, the following options are available:
1335 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1336 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1337 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1338 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1339 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1341 This module supports multiple cards, autoprobe and ISA PnP.
1343 Module snd-korg1212
1344 -------------------
1346 Module for Korg 1212 IO PCI card
1348 This module supports multiple cards.
1350 Module snd-layla20
1351 ------------------
1353 Module for Echoaudio Layla20
1355 This module supports multiple cards.
1356 The driver requires the firmware loader support on kernel.
1358 Module snd-layla24
1359 ------------------
1361 Module for Echoaudio Layla24
1363 This module supports multiple cards.
1364 The driver requires the firmware loader support on kernel.
1366 Module snd-maestro3
1367 -------------------
1369 Module for Allegro/Maestro3 chips
1371 external_amp - enable external amp (enabled by default)
1372 amp_gpio - GPIO pin number for external amp (0-15) or
1373 -1 for default pin (8 for allegro, 1 for
1374 others)
1376 This module supports autoprobe and multiple chips.
1378 Note: the binding of amplifier is dependent on hardware.
1379 If there is no sound even though all channels are unmuted, try to
1380 specify other gpio connection via amp_gpio option.
1381 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1382 option.
1384 The power-management is supported.
1386 Module snd-mia
1387 ---------------
1389 Module for Echoaudio Mia
1391 This module supports multiple cards.
1392 The driver requires the firmware loader support on kernel.
1394 Module snd-miro
1395 ---------------
1397 Module for Miro soundcards: miroSOUND PCM 1 pro,
1398 miroSOUND PCM 12,
1399 miroSOUND PCM 20 Radio.
1401 port - Port # (0x530,0x604,0xe80,0xf40)
1402 irq - IRQ # (5,7,9,10,11)
1403 dma1 - 1st dma # (0,1,3)
1404 dma2 - 2nd dma # (0,1)
1405 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1406 mpu_irq - MPU-401 irq # (5,7,9,10)
1407 fm_port - FM Port # (0x388)
1408 wss - enable WSS mode
1409 ide - enable onboard ide support
1411 Module snd-mixart
1412 -----------------
1414 Module for Digigram miXart8 sound cards.
1416 This module supports multiple cards.
1417 Note: One miXart8 board will be represented as 4 alsa cards.
1418 See MIXART.txt for details.
1420 When the driver is compiled as a module and the hotplug firmware
1421 is supported, the firmware data is loaded via hotplug automatically.
1422 Install the necessary firmware files in alsa-firmware package.
1423 When no hotplug fw loader is available, you need to load the
1424 firmware via mixartloader utility in alsa-tools package.
1426 Module snd-mona
1427 ---------------
1429 Module for Echoaudio Mona
1431 This module supports multiple cards.
1432 The driver requires the firmware loader support on kernel.
1434 Module snd-mpu401
1435 -----------------
1437 Module for MPU-401 UART devices.
1439 port - port number or -1 (disable)
1440 irq - IRQ number or -1 (disable)
1441 pnp - PnP detection - 0 = disable, 1 = enable (default)
1443 This module supports multiple devices and PnP.
1445 Module snd-mtpav
1446 ----------------
1448 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1449 port).
1451 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1452 irq - IRQ # for MTPAV (7,5, default=7)
1453 hwports - number of supported hardware ports, default=8.
1455 Module supports only 1 card. This module has no enable option.
1457 Module snd-mts64
1458 ----------------
1460 Module for Ego Systems (ESI) Miditerminal 4140
1462 This module supports multiple devices.
1463 Requires parport (CONFIG_PARPORT).
1465 Module snd-nm256
1466 ----------------
1468 Module for NeoMagic NM256AV/ZX chips
1470 playback_bufsize - max playback frame size in kB (4-128kB)
1471 capture_bufsize - max capture frame size in kB (4-128kB)
1472 force_ac97 - 0 or 1 (disabled by default)
1473 buffer_top - specify buffer top address
1474 use_cache - 0 or 1 (disabled by default)
1475 vaio_hack - alias buffer_top=0x25a800
1476 reset_workaround - enable AC97 RESET workaround for some laptops
1477 reset_workaround2 - enable extended AC97 RESET workaround for some
1478 other laptops
1480 This module supports one chip and autoprobe.
1482 The power-management is supported.
1484 Note: on some notebooks the buffer address cannot be detected
1485 automatically, or causes hang-up during initialization.
1486 In such a case, specify the buffer top address explicitly via
1487 the buffer_top option.
1488 For example,
1489 Sony F250: buffer_top=0x25a800
1490 Sony F270: buffer_top=0x272800
1491 The driver supports only ac97 codec. It's possible to force
1492 to initialize/use ac97 although it's not detected. In such a
1493 case, use force_ac97=1 option - but *NO* guarantee whether it
1494 works!
1496 Note: The NM256 chip can be linked internally with non-AC97
1497 codecs. This driver supports only the AC97 codec, and won't work
1498 with machines with other (most likely CS423x or OPL3SAx) chips,
1499 even though the device is detected in lspci. In such a case, try
1500 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1501 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1502 and proper hardware parameters in the case without ISA PnP.
1504 Note: some laptops need a workaround for AC97 RESET. For the
1505 known hardware like Dell Latitude LS and Sony PCG-F305, this
1506 workaround is enabled automatically. For other laptops with a
1507 hard freeze, you can try reset_workaround=1 option.
1509 Note: Dell Latitude CSx laptops have another problem regarding
1510 AC97 RESET. On these laptops, reset_workaround2 option is
1511 turned on as default. This option is worth to try if the
1512 previous reset_workaround option doesn't help.
1514 Note: This driver is really crappy. It's a porting from the
1515 OSS driver, which is a result of black-magic reverse engineering.
1516 The detection of codec will fail if the driver is loaded *after*
1517 X-server as described above. You might be able to force to load
1518 the module, but it may result in hang-up. Hence, make sure that
1519 you load this module *before* X if you encounter this kind of
1520 problem.
1522 Module snd-opl3sa2
1523 ------------------
1525 Module for Yamaha OPL3-SA2/SA3 sound cards.
1527 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1529 with isapnp=0, the following options are available:
1531 port - control port # for OPL3-SA chip (0x370)
1532 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1533 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1534 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1535 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1536 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1537 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1538 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1540 This module supports multiple cards and ISA PnP. It does not support
1541 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1543 The power-management is supported.
1545 Module snd-opti92x-ad1848
1546 -------------------------
1548 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1549 Module works with OAK Mozart cards as well.
1551 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1553 with isapnp=0, the following options are available:
1555 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1556 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1557 fm_port - port # for OPL3 device (0x388)
1558 irq - IRQ # for WSS chip (5,7,9,10,11)
1559 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1560 dma1 - first DMA # for WSS chip (0,1,3)
1562 This module supports only one card, autoprobe and PnP.
1564 Module snd-opti92x-cs4231
1565 -------------------------
1567 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1569 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1571 with isapnp=0, the following options are available:
1573 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1574 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1575 fm_port - port # for OPL3 device (0x388)
1576 irq - IRQ # for WSS chip (5,7,9,10,11)
1577 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1578 dma1 - first DMA # for WSS chip (0,1,3)
1579 dma2 - second DMA # for WSS chip (0,1,3)
1581 This module supports only one card, autoprobe and PnP.
1583 Module snd-opti93x
1584 ------------------
1586 Module for sound cards based on OPTi 82c93x chips.
1588 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1590 with isapnp=0, the following options are available:
1592 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1593 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1594 fm_port - port # for OPL3 device (0x388)
1595 irq - IRQ # for WSS chip (5,7,9,10,11)
1596 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1597 dma1 - first DMA # for WSS chip (0,1,3)
1598 dma2 - second DMA # for WSS chip (0,1,3)
1600 This module supports only one card, autoprobe and PnP.
1602 Module snd-oxygen
1603 -----------------
1605 Module for sound cards based on the C-Media CMI8788 chip:
1606 * Asound A-8788
1607 * AuzenTech X-Meridian
1608 * Bgears b-Enspirer
1609 * Club3D Theatron DTS
1610 * HT-Omega Claro
1611 * Razer Barracuda AC-1
1612 * Sondigo Inferno
1614 This module supports autoprobe and multiple cards.
1616 Power management is _not_ supported.
1618 Module snd-pcsp
1619 -----------------
1621 Module for internal PC-Speaker.
1623 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1625 This module supports system beeps, some kind of PCM playback and
1626 even a few mixer controls.
1628 Module snd-pcxhr
1629 ----------------
1631 Module for Digigram PCXHR boards
1633 This module supports multiple cards.
1635 Module snd-portman2x4
1636 ---------------------
1638 Module for Midiman Portman 2x4 parallel port MIDI interface
1640 This module supports multiple cards.
1642 Module snd-powermac (on ppc only)
1643 ---------------------------------
1645 Module for PowerMac, iMac and iBook on-board soundchips
1647 enable_beep - enable beep using PCM (enabled as default)
1649 Module supports autoprobe a chip.
1651 Note: the driver may have problems regarding endianess.
1653 The power-management is supported.
1655 Module snd-pxa2xx-ac97 (on arm only)
1656 ------------------------------------
1658 Module for AC97 driver for the Intel PXA2xx chip
1660 For ARM architecture only.
1662 The power-management is supported.
1664 Module snd-riptide
1665 ------------------
1667 Module for Conexant Riptide chip
1669 joystick_port - Joystick port # (default: 0x200)
1670 mpu_port - MPU401 port # (default: 0x330)
1671 opl3_port - OPL3 port # (default: 0x388)
1673 This module supports multiple cards.
1674 The driver requires the firmware loader support on kernel.
1675 You need to install the firmware file "riptide.hex" to the standard
1676 firmware path (e.g. /lib/firmware).
1678 Module snd-rme32
1679 ----------------
1681 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1682 Prodif96 and Prodif Gold) sound cards.
1684 This module supports multiple cards.
1686 Module snd-rme96
1687 ----------------
1689 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1691 This module supports multiple cards.
1693 Module snd-rme9652
1694 ------------------
1696 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1698 precise_ptr - Enable precise pointer (doesn't work reliably).
1699 (default = 0)
1701 This module supports multiple cards.
1703 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1704 module did formerly. It will allocate the buffers in advance
1705 when any RME9652 cards are found. To make the buffer
1706 allocation sure, load snd-page-alloc module in the early
1707 stage of boot sequence. See "Early Buffer Allocation"
1708 section.
1710 Module snd-sa11xx-uda1341 (on arm only)
1711 ---------------------------------------
1713 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1715 Module supports only one card.
1716 Module has no enable and index options.
1718 The power-management is supported.
1720 Module snd-sb8
1721 --------------
1723 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1724 SoundBlaster 2.0,
1725 SoundBlaster Pro
1727 port - port # for SB DSP chip (0x220,0x240,0x260)
1728 irq - IRQ # for SB DSP chip (5,7,9,10)
1729 dma8 - DMA # for SB DSP chip (1,3)
1731 This module supports multiple cards and autoprobe.
1733 The power-management is supported.
1735 Module snd-sb16 and snd-sbawe
1736 -----------------------------
1738 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1739 SoundBlaster AWE 32 (PnP),
1740 SoundBlaster AWE 64 PnP
1742 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1743 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1744 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1746 with isapnp=0, the following options are available:
1748 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1749 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1750 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1751 (snd-sbawe module only)
1752 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1753 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1754 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1756 This module supports multiple cards, autoprobe and ISA PnP.
1758 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1759 disable 16bit DMA with dma16 = -1 module parameter.
1760 Also, all Sound Blaster 16 type cards can operate in 16-bit
1761 half duplex mode through 8-bit DMA channel by disabling their
1762 16-bit DMA channel.
1764 The power-management is supported.
1766 Module snd-sc6000
1767 -----------------
1769 Module for Gallant SC-6000 soundcard.
1771 port - Port # (0x220 or 0x240)
1772 mss_port - MSS Port # (0x530 or 0xe80)
1773 irq - IRQ # (5,7,9,10,11)
1774 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1775 dma - DMA # (1,3,0)
1777 This module supports multiple cards.
1779 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1781 Module snd-sgalaxy
1782 ------------------
1784 Module for Aztech Sound Galaxy sound card.
1786 sbport - Port # for SB16 interface (0x220,0x240)
1787 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1788 irq - IRQ # (7,9,10,11)
1789 dma1 - DMA #
1791 This module supports multiple cards.
1793 The power-management is supported.
1795 Module snd-sscape
1796 -----------------
1798 Module for ENSONIQ SoundScape PnP cards.
1800 port - Port # (PnP setup)
1801 wss_port - WSS Port # (PnP setup)
1802 irq - IRQ # (PnP setup)
1803 mpu_irq - MPU-401 IRQ # (PnP setup)
1804 dma - DMA # (PnP setup)
1805 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1807 This module supports multiple cards. ISA PnP must be enabled.
1808 You need sscape_ctl tool in alsa-tools package for loading
1809 the microcode.
1811 Module snd-sun-amd7930 (on sparc only)
1812 --------------------------------------
1814 Module for AMD7930 sound chips found on Sparcs.
1816 This module supports multiple cards.
1818 Module snd-sun-cs4231 (on sparc only)
1819 -------------------------------------
1821 Module for CS4231 sound chips found on Sparcs.
1823 This module supports multiple cards.
1825 Module snd-sun-dbri (on sparc only)
1826 -----------------------------------
1828 Module for DBRI sound chips found on Sparcs.
1830 This module supports multiple cards.
1832 Module snd-wavefront
1833 --------------------
1835 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1837 use_cs4232_midi - Use CS4232 MPU-401 interface
1838 (inaccessibly located inside your computer)
1839 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1841 with isapnp=0, the following options are available:
1843 cs4232_pcm_port - Port # for CS4232 PCM interface.
1844 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1845 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1846 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1847 ics2115_port - Port # for ICS2115
1848 ics2115_irq - IRQ # for ICS2115
1849 fm_port - FM OPL-3 Port #
1850 dma1 - DMA1 # for CS4232 PCM interface.
1851 dma2 - DMA2 # for CS4232 PCM interface.
1853 The below are options for wavefront_synth features:
1854 wf_raw - Assume that we need to boot the OS (default:no)
1855 If yes, then during driver loading, the state of the board is
1856 ignored, and we reset the board and load the firmware anyway.
1857 fx_raw - Assume that the FX process needs help (default:yes)
1858 If false, we'll leave the FX processor in whatever state it is
1859 when the driver is loaded. The default is to download the
1860 microprogram and associated coefficients to set it up for
1861 "default" operation, whatever that means.
1862 debug_default - Debug parameters for card initialization
1863 wait_usecs - How long to wait without sleeping, usecs
1864 (default:150)
1865 This magic number seems to give pretty optimal throughput
1866 based on my limited experimentation.
1867 If you want to play around with it and find a better value, be
1868 my guest. Remember, the idea is to get a number that causes us
1869 to just busy wait for as many WaveFront commands as possible,
1870 without coming up with a number so large that we hog the whole
1871 CPU.
1872 Specifically, with this number, out of about 134,000 status
1873 waits, only about 250 result in a sleep.
1874 sleep_interval - How long to sleep when waiting for reply
1875 (default: 100)
1876 sleep_tries - How many times to try sleeping during a wait
1877 (default: 50)
1878 ospath - Pathname to processed ICS2115 OS firmware
1879 (default:wavefront.os)
1880 The path name of the ISC2115 OS firmware. In the recent
1881 version, it's handled via firmware loader framework, so it
1882 must be installed in the proper path, typically,
1883 /lib/firmware.
1884 reset_time - How long to wait for a reset to take effect
1885 (default:2)
1886 ramcheck_time - How many seconds to wait for the RAM test
1887 (default:20)
1888 osrun_time - How many seconds to wait for the ICS2115 OS
1889 (default:10)
1891 This module supports multiple cards and ISA PnP.
1893 Note: the firmware file "wavefront.os" was located in the earlier
1894 version in /etc. Now it's loaded via firmware loader, and
1895 must be in the proper firmware path, such as /lib/firmware.
1896 Copy (or symlink) the file appropriately if you get an error
1897 regarding firmware downloading after upgrading the kernel.
1899 Module snd-sonicvibes
1900 ---------------------
1902 Module for S3 SonicVibes PCI sound cards.
1903 * PINE Schubert 32 PCI
1905 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1906 - SoundCard must have onboard SRAM for this.
1907 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1909 This module supports multiple cards and autoprobe.
1911 Module snd-serial-u16550
1912 ------------------------
1914 Module for UART16550A serial MIDI ports.
1916 port - port # for UART16550A chip
1917 irq - IRQ # for UART16550A chip, -1 = poll mode
1918 speed - speed in bauds (9600,19200,38400,57600,115200)
1919 38400 = default
1920 base - base for divisor in bauds (57600,115200,230400,460800)
1921 115200 = default
1922 outs - number of MIDI ports in a serial port (1-4)
1923 1 = default
1924 adaptor - Type of adaptor.
1925 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1926 3 = MS-124W M/B, 4 = Generic
1928 This module supports multiple cards. This module does not support autoprobe
1929 thus the main port must be specified!!! Other options are optional.
1931 Module snd-trident
1932 ------------------
1934 Module for Trident 4DWave DX/NX sound cards.
1935 * Best Union Miss Melody 4DWave PCI
1936 * HIS 4DWave PCI
1937 * Warpspeed ONSpeed 4DWave PCI
1938 * AzTech PCI 64-Q3D
1939 * Addonics SV 750
1940 * CHIC True Sound 4Dwave
1941 * Shark Predator4D-PCI
1942 * Jaton SonicWave 4D
1944 pcm_channels - max channels (voices) reserved for PCM
1945 wavetable_size - max wavetable size in kB (4-?kb)
1947 This module supports multiple cards and autoprobe.
1949 The power-management is supported.
1951 Module snd-usb-audio
1952 --------------------
1954 Module for USB audio and USB MIDI devices.
1956 vid - Vendor ID for the device (optional)
1957 pid - Product ID for the device (optional)
1958 device_setup - Device specific magic number (optional)
1959 - Influence depends on the device
1960 - Default: 0x0000
1962 This module supports multiple devices, autoprobe and hotplugging.
1964 Module snd-usb-caiaq
1965 --------------------
1967 Module for caiaq UB audio interfaces,
1968 * Native Instruments RigKontrol2
1969 * Native Instruments Kore Controller
1970 * Native Instruments Audio Kontrol 1
1971 * Native Instruments Audio 8 DJ
1973 This module supports multiple devices, autoprobe and hotplugging.
1975 Module snd-usb-usx2y
1976 --------------------
1978 Module for Tascam USB US-122, US-224 and US-428 devices.
1980 This module supports multiple devices, autoprobe and hotplugging.
1982 Note: you need to load the firmware via usx2yloader utility included
1983 in alsa-tools and alsa-firmware packages.
1985 Module snd-via82xx
1986 ------------------
1988 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1989 8233A, 8233C, 8235, 8237 (south) bridge.
1991 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1992 [VIA686A/686B only]
1993 joystick - Enable joystick (default off) [VIA686A/686B only]
1994 ac97_clock - AC'97 codec clock base (default 48000Hz)
1995 dxs_support - support DXS channels,
1996 0 = auto (default), 1 = enable, 2 = disable,
1997 3 = 48k only, 4 = no VRA, 5 = enable any sample
1998 rate and different sample rates on different
1999 channels
2000 [VIA8233/C, 8235, 8237 only]
2001 ac97_quirk - AC'97 workaround for strange hardware
2002 See "AC97 Quirk Option" section below.
2004 This module supports one chip and autoprobe.
2006 Note: on some SMP motherboards like MSI 694D the interrupts might
2007 not be generated properly. In such a case, please try to
2008 set the SMP (or MPS) version on BIOS to 1.1 instead of
2009 default value 1.4. Then the interrupt number will be
2010 assigned under 15. You might also upgrade your BIOS.
2012 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
2013 channels as the first PCM. On these channels, up to 4
2014 streams can be played at the same time, and the controller
2015 can perform sample rate conversion with separate rates for
2016 each channel.
2017 As default (dxs_support = 0), 48k fixed rate is chosen
2018 except for the known devices since the output is often
2019 noisy except for 48k on some mother boards due to the
2020 bug of BIOS.
2021 Please try once dxs_support=5 and if it works on other
2022 sample rates (e.g. 44.1kHz of mp3 playback), please let us
2023 know the PCI subsystem vendor/device id's (output of
2024 "lspci -nv").
2025 If dxs_support=5 does not work, try dxs_support=4; if it
2026 doesn't work too, try dxs_support=1. (dxs_support=1 is
2027 usually for old motherboards. The correct implemented
2028 board should work with 4 or 5.) If it still doesn't
2029 work and the default setting is ok, dxs_support=3 is the
2030 right choice. If the default setting doesn't work at all,
2031 try dxs_support=2 to disable the DXS channels.
2032 In any cases, please let us know the result and the
2033 subsystem vendor/device ids. See "Links and Addresses"
2034 below.
2036 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
2037 additionally. The mpu_port option is for VIA686 chips only.
2039 The power-management is supported.
2041 Module snd-via82xx-modem
2042 ------------------------
2044 Module for VIA82xx AC97 modem
2046 ac97_clock - AC'97 codec clock base (default 48000Hz)
2048 This module supports one card and autoprobe.
2050 Note: The default index value of this module is -2, i.e. the first
2051 slot is excluded.
2053 The power-management is supported.
2055 Module snd-virmidi
2056 ------------------
2058 Module for virtual rawmidi devices.
2059 This module creates virtual rawmidi devices which communicate
2060 to the corresponding ALSA sequencer ports.
2062 midi_devs - MIDI devices # (1-4, default=4)
2064 This module supports multiple cards.
2066 Module snd-virtuoso
2067 -------------------
2069 Module for sound cards based on the Asus AV200 chip, i.e.,
2070 Xonar D2 and Xonar D2X.
2072 This module supports autoprobe and multiple cards.
2074 Power management is _not_ supported.
2076 Module snd-vx222
2077 ----------------
2079 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
2081 mic - Enable Microphone on V222 Mic (NYI)
2082 ibl - Capture IBL size. (default = 0, minimum size)
2084 This module supports multiple cards.
2086 When the driver is compiled as a module and the hotplug firmware
2087 is supported, the firmware data is loaded via hotplug automatically.
2088 Install the necessary firmware files in alsa-firmware package.
2089 When no hotplug fw loader is available, you need to load the
2090 firmware via vxloader utility in alsa-tools package. To invoke
2091 vxloader automatically, add the following to /etc/modprobe.conf
2093 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
2095 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
2096 /etc/modules.conf, instead.)
2097 IBL size defines the interrupts period for PCM. The smaller size
2098 gives smaller latency but leads to more CPU consumption, too.
2099 The size is usually aligned to 126. As default (=0), the smallest
2100 size is chosen. The possible IBL values can be found in
2101 /proc/asound/cardX/vx-status proc file.
2103 The power-management is supported.
2105 Module snd-vxpocket
2106 -------------------
2108 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
2110 ibl - Capture IBL size. (default = 0, minimum size)
2112 This module supports multiple cards. The module is compiled only when
2113 PCMCIA is supported on kernel.
2115 With the older 2.6.x kernel, to activate the driver via the card
2116 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
2117 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
2118 longer require a config file.
2120 When the driver is compiled as a module and the hotplug firmware
2121 is supported, the firmware data is loaded via hotplug automatically.
2122 Install the necessary firmware files in alsa-firmware package.
2123 When no hotplug fw loader is available, you need to load the
2124 firmware via vxloader utility in alsa-tools package.
2126 About capture IBL, see the description of snd-vx222 module.
2128 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
2129 ALSA 1.0.10.
2131 The power-management is supported.
2133 Module snd-ymfpci
2134 -----------------
2136 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
2138 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
2139 1 (auto-detect for YMF744/754 only)
2140 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
2141 1 (auto-detect for YMF744/754 only)
2142 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
2143 1 (auto-detect)
2144 rear_switch - enable shared rear/line-in switch (bool)
2146 This module supports autoprobe and multiple chips.
2148 The power-management is supported.
2150 Module snd-pdaudiocf
2151 --------------------
2153 Module for Sound Core PDAudioCF sound card.
2155 The power-management is supported.
2158 AC97 Quirk Option
2159 =================
2161 The ac97_quirk option is used to enable/override the workaround for
2162 specific devices on drivers for on-board AC'97 controllers like
2163 snd-intel8x0. Some hardware have swapped output pins between Master
2164 and Headphone, or Surround (thanks to confusion of AC'97
2165 specifications from version to version :-)
2167 The driver provides the auto-detection of known problematic devices,
2168 but some might be unknown or wrongly detected. In such a case, pass
2169 the proper value with this option.
2171 The following strings are accepted:
2172 - default Don't override the default setting
2173 - none Disable the quirk
2174 - hp_only Bind Master and Headphone controls as a single control
2175 - swap_hp Swap headphone and master controls
2176 - swap_surround Swap master and surround controls
2177 - ad_sharing For AD1985, turn on OMS bit and use headphone
2178 - alc_jack For ALC65x, turn on the jack sense mode
2179 - inv_eapd Inverted EAPD implementation
2180 - mute_led Bind EAPD bit for turning on/off mute LED
2182 For backward compatibility, the corresponding integer value -1, 0,
2183 ... are accepted, too.
2185 For example, if "Master" volume control has no effect on your device
2186 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2189 Configuring Non-ISAPNP Cards
2190 ============================
2192 When the kernel is configured with ISA-PnP support, the modules
2193 supporting the isapnp cards will have module options "isapnp".
2194 If this option is set, *only* the ISA-PnP devices will be probed.
2195 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2196 together with the proper i/o and irq configuration.
2198 When the kernel is configured without ISA-PnP support, isapnp option
2199 will be not built in.
2202 Module Autoloading Support
2203 ==========================
2205 The ALSA drivers can be loaded automatically on demand by defining
2206 module aliases. The string 'snd-card-%1' is requested for ALSA native
2207 devices where %i is sound card number from zero to seven.
2209 To auto-load an ALSA driver for OSS services, define the string
2210 'sound-slot-%i' where %i means the slot number for OSS, which
2211 corresponds to the card index of ALSA. Usually, define this
2212 as the same card module.
2214 An example configuration for a single emu10k1 card is like below:
2215 ----- /etc/modprobe.conf
2216 alias snd-card-0 snd-emu10k1
2217 alias sound-slot-0 snd-emu10k1
2218 ----- /etc/modprobe.conf
2220 The available number of auto-loaded sound cards depends on the module
2221 option "cards_limit" of snd module. As default it's set to 1.
2222 To enable the auto-loading of multiple cards, specify the number of
2223 sound cards in that option.
2225 When multiple cards are available, it'd better to specify the index
2226 number for each card via module option, too, so that the order of
2227 cards is kept consistent.
2229 An example configuration for two sound cards is like below:
2231 ----- /etc/modprobe.conf
2232 # ALSA portion
2233 options snd cards_limit=2
2234 alias snd-card-0 snd-interwave
2235 alias snd-card-1 snd-ens1371
2236 options snd-interwave index=0
2237 options snd-ens1371 index=1
2238 # OSS/Free portion
2239 alias sound-slot-0 snd-interwave
2240 alias sound-slot-1 snd-ens1371
2241 ----- /etc/modprobe.conf
2243 In this example, the interwave card is always loaded as the first card
2244 (index 0) and ens1371 as the second (index 1).
2246 Alternative (and new) way to fixate the slot assignment is to use
2247 "slots" option of snd module. In the case above, specify like the
2248 following:
2250 options snd slots=snd-interwave,snd-ens1371
2252 Then, the first slot (#0) is reserved for snd-interwave driver, and
2253 the second (#1) for snd-ens1371. You can omit index option in each
2254 driver if slots option is used (although you can still have them at
2255 the same time as long as they don't conflict).
2257 The slots option is especially useful for avoiding the possible
2258 hot-plugging and the resultant slot conflict. For example, in the
2259 case above again, the first two slots are already reserved. If any
2260 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2261 snd-ens1371, it will be assigned to the third or later slot.
2264 ALSA PCM devices to OSS devices mapping
2265 =======================================
2267 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2268 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2269 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2270 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2271 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2272 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2273 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2274 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2275 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2277 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2278 sound card number and second means device number. The ALSA devices
2279 have either 'c' or 'p' suffix indicating the direction, capture and
2280 playback, respectively.
2282 Please note that the device mapping above may be varied via the module
2283 options of snd-pcm-oss module.
2286 Proc interfaces (/proc/asound)
2287 ==============================
2289 /proc/asound/card#/pcm#[cp]/oss
2290 -------------------------------
2291 String "erase" - erase all additional informations about OSS applications
2292 String "<app_name> <fragments> <fragment_size> [<options>]"
2294 <app_name> - name of application with (higher priority) or without path
2295 <fragments> - number of fragments or zero if auto
2296 <fragment_size> - size of fragment in bytes or zero if auto
2297 <options> - optional parameters
2298 - disable the application tries to open a pcm device for
2299 this channel but does not want to use it.
2300 (Cause a bug or mmap needs)
2301 It's good for Quake etc...
2302 - direct don't use plugins
2303 - block force block mode (rvplayer)
2304 - non-block force non-block mode
2305 - whole-frag write only whole fragments (optimization affecting
2306 playback only)
2307 - no-silence do not fill silence ahead to avoid clicks
2308 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2309 instead of filled blocks
2311 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2312 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2313 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2316 Early Buffer Allocation
2317 =======================
2319 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2320 sometimes it's too late to find such spaces when the driver module is
2321 actually loaded due to memory fragmentation. You can pre-allocate the
2322 PCM buffers by loading snd-page-alloc module and write commands to its
2323 proc file in prior, for example, in the early boot stage like
2324 /etc/init.d/*.local scripts.
2326 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2327 usage of page allocation. In writing, you can send the following
2328 commands to the snd-page-alloc driver:
2330 - add VENDOR DEVICE MASK SIZE BUFFERS
2332 VENDOR and DEVICE are PCI vendor and device IDs. They take
2333 integer numbers (0x prefix is needed for the hex).
2334 MASK is the PCI DMA mask. Pass 0 if not restricted.
2335 SIZE is the size of each buffer to allocate. You can pass
2336 k and m suffix for KB and MB. The max number is 16MB.
2337 BUFFERS is the number of buffers to allocate. It must be greater
2338 than 0. The max number is 4.
2340 - erase
2342 This will erase the all pre-allocated buffers which are not in
2343 use.
2346 Links and Addresses
2347 ===================
2349 ALSA project homepage
2350 http://www.alsa-project.org
2352 ALSA Bug Tracking System
2353 https://bugtrack.alsa-project.org/bugs/
2355 ALSA Developers ML
2356 mailto:alsa-devel@alsa-project.org