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.
60 slots - Reserve the slot index for the given driver.
61 This option takes multiple strings.
62 See "Module Autoloading Support" section for details.
63 debug - Specifies the debug message level
64 (0 = disable debug prints, 1 = normal debug messages,
65 2 = verbose debug messages)
66 This option appears only when CONFIG_SND_DEBUG=y.
67 This option can be dynamically changed via sysfs
68 /sys/modules/snd/parameters/debug file.
73 The PCM OSS emulation module.
74 This module takes options which change the mapping of devices.
76 dsp_map - PCM device number maps assigned to the 1st OSS device.
78 adsp_map - PCM device number maps assigned to the 2st OSS device.
81 - Don't block opening busy PCM devices. Default: 1
83 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
84 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
85 to PCM #0 of the card #0.
86 For changing the second or later card, specify the option with
87 commas, such like "dsp_map=0,1".
89 nonblock_open option is used to change the behavior of the PCM
90 regarding opening the device. When this option is non-zero,
91 opening a busy OSS PCM device won't be blocked but return
92 immediately with EAGAIN (just like O_NONBLOCK flag).
97 This module takes options which change the mapping of devices.
98 similar to those of the snd-pcm-oss module.
100 midi_map - MIDI device number maps assigned to the 1st OSS device.
102 amidi_map - MIDI device number maps assigned to the 2st OSS device.
105 Common parameters for top sound card modules
106 --------------------------------------------
108 Each of top level sound card module takes the following options.
110 index - index (slot #) of sound card
111 - Values: 0 through 31 or negative
112 - If nonnegative, assign that index number
113 - if negative, interpret as a bitmask of permissible
114 indices; the first free permitted index is assigned
116 id - card ID (identifier or name)
117 - Can be up to 15 characters long
118 - Default: the card type
119 - A directory by this name is created under /proc/asound/
120 containing information about the card
121 - This ID can be used instead of the index number in
124 - Default: enabled, for PCI and ISA PnP cards
129 Module for AdLib FM cards.
131 port - port # for OPL chip
133 This module supports multiple cards. It does not support autoprobe, so
134 the port must be specified. For actual AdLib FM cards it will be 0x388.
135 Note that this card does not have PCM support and no mixer; only FM
138 Make sure you have "sbiload" from the alsa-tools package available and,
139 after loading the module, find out the assigned ALSA sequencer port
140 number through "sbiload -l". Example output:
142 Port Client name Port name
143 64:0 OPL2 FM synth OPL2 FM Port
145 Load the std.sb and drums.sb patches also supplied by sbiload:
147 sbiload -p 64:0 std.sb drums.sb
149 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
150 instead. To have the card produce sound, use aplaymidi from alsa-utils:
152 aplaymidi -p 64:0 foo.mid
157 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
159 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
161 This module supports multiple cards, autoprobe and PnP.
166 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
168 port - port # for AD1848 chip
169 irq - IRQ # for AD1848 chip
170 dma1 - DMA # for AD1848 chip (0,1,3)
172 This module supports multiple cards. It does not support autoprobe
173 thus main port must be specified!!! Other ports are optional.
175 The power-management is supported.
180 Module for Analog Devices AD1889 chips.
182 ac97_quirk - AC'97 workaround for strange hardware
183 See the description of intel8x0 module for details.
185 This module supports multiple cards.
190 Module for ALi M5451 PCI chip.
192 pcm_channels - Number of hardware channels assigned for PCM
193 spdif - Support SPDIF I/O
196 This module supports one chip and autoprobe.
198 The power-management is supported.
203 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
205 This module supports multiple cards, autoprobe and PnP.
207 The power-management is supported.
212 Module for Avance Logic ALS300 and ALS300+
214 This module supports multiple cards.
216 The power-management is supported.
221 Module for sound cards based on Avance Logic ALS4000 PCI chip.
223 joystick_port - port # for legacy joystick support.
224 0 = disabled (default), 1 = auto-detect
226 This module supports multiple cards, autoprobe and PnP.
228 The power-management is supported.
233 Module for ATI IXP 150/200/250/400 AC97 controllers.
235 ac97_clock - AC'97 clock (default = 48000)
236 ac97_quirk - AC'97 workaround for strange hardware
237 See "AC97 Quirk Option" section below.
238 ac97_codec - Workaround to specify which AC'97 codec
239 instead of probing. If this works for you
240 file a bug with your `lspci -vn` output.
242 -1 -- Default behavior.
243 0-2 -- Use the specified codec.
244 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
246 This module supports one card and autoprobe.
248 ATI IXP has two different methods to control SPDIF output. One is
249 over AC-link and another is over the "direct" SPDIF output. The
250 implementation depends on the motherboard, and you'll need to
251 choose the correct one via spdif_aclink module option.
253 The power-management is supported.
255 Module snd-atiixp-modem
256 -----------------------
258 Module for ATI IXP 150/200/250 AC97 modem controllers.
260 This module supports one card and autoprobe.
262 Note: The default index value of this module is -2, i.e. the first
265 The power-management is supported.
267 Module snd-au8810, snd-au8820, snd-au8830
268 -----------------------------------------
270 Module for Aureal Vortex, Vortex2 and Advantage device.
272 pcifix - Control PCI workarounds
273 0 = Disable all workarounds
274 1 = Force the PCI latency of the Aureal card to 0xff
275 2 = Force the Extend PCI#2 Internal Master for Efficient
276 Handling of Dummy Requests on the VIA KT133 AGP Bridge
277 3 = Force both settings
278 255 = Autodetect what is required (default)
280 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
281 EQ, mpu401, gameport. A3D and wavetable support are still in development.
282 Development and reverse engineering work is being coordinated at
283 http://savannah.nongnu.org/projects/openvortex/
284 SPDIF output has a copy of the AC97 codec output, unless you use the
285 "spdif" pcm device, which allows raw data passthru.
286 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
289 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
290 control correctly. If you have problems regarding this, try
291 another ALSA compliant mixer (alsamixer works).
296 Module for Audiowerk2 sound card
298 This module supports multiple cards.
303 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
305 This module supports multiple cards, PnP and autoprobe.
307 The power-management is supported.
312 Module for sound cards based on Aztech AZF3328 PCI chip.
314 joystick - Enable joystick (default off)
316 This module supports multiple cards.
321 Module for video cards based on Bt87x chips.
323 digital_rate - Override the default digital rate (Hz)
324 load_all - Load the driver even if the card model isn't known
326 This module supports multiple cards.
328 Note: The default index value of this module is -2, i.e. the first
334 Module for Creative Audigy LS and SB Live 24bit
336 This module supports multiple cards.
342 Module for sound cards based on C-Media CMI8330 ISA chips.
344 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
346 with isapnp=0, the following options are available:
348 wssport - port # for CMI8330 chip (WSS)
349 wssirq - IRQ # for CMI8330 chip (WSS)
350 wssdma - first DMA # for CMI8330 chip (WSS)
351 sbport - port # for CMI8330 chip (SB16)
352 sbirq - IRQ # for CMI8330 chip (SB16)
353 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
354 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
355 fmport - (optional) OPL3 I/O port
356 mpuport - (optional) MPU401 I/O port
357 mpuirq - (optional) MPU401 irq #
359 This module supports multiple cards and autoprobe.
361 The power-management is supported.
366 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
368 mpu_port - port address of MIDI interface (8338 only):
369 0x300,0x310,0x320,0x330 = legacy port,
370 0 = disable (default)
371 fm_port - port address of OPL-3 FM synthesizer (8x38 only):
373 1 = integrated PCI port (default on 8738),
375 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
377 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
379 This module supports autoprobe and multiple cards.
381 The power-management is supported.
386 Module for sound cards based on CS4231 ISA chips.
388 port - port # for CS4231 chip
389 mpu_port - port # for MPU-401 UART (optional), -1 = disable
390 irq - IRQ # for CS4231 chip
391 mpu_irq - IRQ # for MPU-401 UART
392 dma1 - first DMA # for CS4231 chip
393 dma2 - second DMA # for CS4231 chip
395 This module supports multiple cards. This module does not support autoprobe
396 thus main port must be specified!!! Other ports are optional.
398 The power-management is supported.
403 Module for sound cards based on CS4232/CS4232A,
404 CS4235/CS4236/CS4236B/CS4237B/
405 CS4238B/CS4239 ISA chips.
407 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
409 with isapnp=0, the following options are available:
411 port - port # for CS4236 chip (PnP setup - 0x534)
412 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
413 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
414 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
415 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
416 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
417 dma1 - first DMA # for CS4236 chip (0,1,3)
418 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
420 This module supports multiple cards. This module does not support autoprobe
421 (if ISA PnP is not used) thus main port and control port must be
422 specified!!! Other ports are optional.
424 The power-management is supported.
426 This module is aliased as snd-cs4232 since it provides the old
427 snd-cs4232 functionality, too.
432 Module for Cirrus Logic CS4281 soundchip.
434 dual_codec - Secondary codec ID (0 = disable, default)
436 This module supports multiple cards.
438 The power-management is supported.
443 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
444 CS4624/CS4630/CS4280 PCI chips.
446 external_amp - Force to enable external amplifier.
447 thinkpad - Force to enable Thinkpad's CLKRUN control.
448 mmap_valid - Support OSS mmap mode (default = 0).
450 This module supports multiple cards and autoprobe.
451 Usually external amp and CLKRUN controls are detected automatically
452 from PCI sub vendor/device ids. If they don't work, give the options
455 The power-management is supported.
460 Module for Cyrix/NatSemi Geode 5530 chip.
462 Module snd-cs5535audio
463 ----------------------
465 Module for multifunction CS5535 companion PCI device
467 The power-management is supported.
472 Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
473 * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
474 * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
475 * Creative Sound Blaster X-Fi Titanium Professional Audio
476 * Creative Sound Blaster X-Fi Titanium
477 * Creative Sound Blaster X-Fi Elite Pro
478 * Creative Sound Blaster X-Fi Platinum
479 * Creative Sound Blaster X-Fi Fatal1ty
480 * Creative Sound Blaster X-Fi XtremeGamer
481 * Creative Sound Blaster X-Fi XtremeMusic
483 reference_rate - reference sample rate, 44100 or 48000 (default)
484 multiple - multiple to ref. sample rate, 1 or 2 (default)
486 This module supports multiple cards.
491 Module for Echoaudio Darla20
493 This module supports multiple cards.
494 The driver requires the firmware loader support on kernel.
499 Module for Echoaudio Darla24
501 This module supports multiple cards.
502 The driver requires the firmware loader support on kernel.
507 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
510 This module supports multiple cards. This module is enabled only with
513 The power-management is supported.
518 Module for the dummy sound card. This "card" doesn't do any output
519 or input, but you may use this module for any application which
520 requires a sound card (like RealPlayer).
522 pcm_devs - Number of PCM devices assigned to each card
523 (default = 1, up to 4)
524 pcm_substreams - Number of PCM substreams assigned to each PCM
525 (default = 8, up to 16)
526 hrtimer - Use hrtimer (=1, default) or system timer (=0)
527 fake_buffer - Fake buffer allocations (default = 1)
529 When multiple PCM devices are created, snd-dummy gives different
530 behavior to each PCM device:
531 0 = interleaved with mmap support
532 1 = non-interleaved with mmap support
533 2 = interleaved without mmap
534 3 = non-interleaved without mmap
536 As default, snd-dummy drivers doesn't allocate the real buffers
537 but either ignores read/write or mmap a single dummy page to all
538 buffer pages, in order to save the resouces. If your apps need
539 the read/ written buffer data to be consistent, pass fake_buffer=0
542 The power-management is supported.
547 Module for Echoaudio 3G cards (Gina3G/Layla3G)
549 This module supports multiple cards.
550 The driver requires the firmware loader support on kernel.
555 Module for EMU10K1/EMU10k2 based PCI sound cards.
556 * Sound Blaster Live!
557 * Sound Blaster PCI 512
558 * Emu APS (partially supported)
559 * Sound Blaster Audigy
561 extin - bitmap of available external inputs for FX8010 (see bellow)
562 extout - bitmap of available external outputs for FX8010 (see bellow)
563 seq_ports - allocated sequencer ports (4 by default)
564 max_synth_voices - limit of voices used for wavetable (64 by default)
565 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
566 given in MB unit. Default value is 128.
567 enable_ir - enable IR
569 This module supports multiple cards and autoprobe.
571 Input & Output configurations [extin/extout]
572 * Creative Card wo/Digital out [0x0003/0x1f03]
573 * Creative Card w/Digital out [0x0003/0x1f0f]
574 * Creative Card w/Digital CD in [0x000f/0x1f0f]
575 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
576 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
577 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
578 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
579 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
580 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
581 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
582 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
583 * Creative Card all ins and outs [0x3fff/0x7fff]
585 The power-management is supported.
590 Module for Creative Emu10k1X (SB Live Dell OEM version)
592 This module supports multiple cards.
597 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
598 * SoundBlaster PCI 64
599 * SoundBlaster PCI 128
601 joystick - Enable joystick (default off)
603 This module supports multiple cards and autoprobe.
605 The power-management is supported.
610 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
611 * SoundBlaster PCI 64
612 * SoundBlaster PCI 128
613 * SoundBlaster Vibra PCI
615 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
616 0 = disable (default), 1 = auto-detect
618 This module supports multiple cards and autoprobe.
620 The power-management is supported.
625 Module for sound cards based on ESS ES968 chip (PnP only).
627 This module supports multiple cards, PnP and autoprobe.
629 The power-management is supported.
634 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
636 port - port # for ES-1688 chip (0x220,0x240,0x260)
637 fm_port - port # for OPL3 (option; share the same port as default)
638 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
639 irq - IRQ # for ES-1688 chip (5,7,9,10)
640 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
641 dma8 - DMA # for ES-1688 chip (0,1,3)
643 This module supports multiple cards and autoprobe (without MPU-401 port).
648 Module for ESS AudioDrive ES-18xx sound cards.
650 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
652 with isapnp=0, the following options are available:
654 port - port # for ES-18xx chip (0x220,0x240,0x260)
655 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
656 fm_port - port # for FM (optional, not used)
657 irq - IRQ # for ES-18xx chip (5,7,9,10)
658 dma1 - first DMA # for ES-18xx chip (0,1,3)
659 dma2 - first DMA # for ES-18xx chip (0,1,3)
661 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
662 port if native ISA PnP routines are not used).
663 When dma2 is equal with dma1, the driver works as half-duplex.
665 The power-management is supported.
670 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
672 This module supports multiple cards and autoprobe.
674 The power-management is supported.
679 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
681 total_bufsize - total buffer size in kB (1-4096kB)
682 pcm_substreams_p - playback channels (1-8, default=2)
683 pcm_substreams_c - capture channels (1-8, default=0)
684 clock - clock (0 = auto-detection)
685 use_pm - support the power-management (0 = off, 1 = on,
687 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
688 joystick - enable joystick (default off)
690 This module supports multiple cards and autoprobe.
692 The power-management is supported.
697 Module for ForteMedia FM801 based PCI sound cards.
699 tea575x_tuner - Enable TEA575x tuner
700 - 1 = MediaForte 256-PCS
701 - 2 = MediaForte 256-PCPR
702 - 3 = MediaForte 64-PCR
703 - High 16-bits are video (radio) device number + 1
704 - example: 0x10002 (MediaForte 256-PCPR, device 1)
706 This module supports multiple cards and autoprobe.
708 The power-management is supported.
713 Module for Echoaudio Gina20
715 This module supports multiple cards.
716 The driver requires the firmware loader support on kernel.
721 Module for Echoaudio Gina24
723 This module supports multiple cards.
724 The driver requires the firmware loader support on kernel.
726 Module snd-gusclassic
727 ---------------------
729 Module for Gravis UltraSound Classic sound card.
731 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
732 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
733 dma1 - DMA # for GF1 chip (1,3,5,6,7)
734 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
735 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
736 voices - GF1 voices limit (14-32)
737 pcm_voices - reserved PCM voices
739 This module supports multiple cards and autoprobe.
741 Module snd-gusextreme
742 ---------------------
744 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
746 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
747 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
748 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
749 irq - IRQ # for ES-1688 chip (5,7,9,10)
750 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
751 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
752 dma8 - DMA # for ES-1688 chip (0,1,3)
753 dma1 - DMA # for GF1 chip (1,3,5,6,7)
754 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
755 voices - GF1 voices limit (14-32)
756 pcm_voices - reserved PCM voices
758 This module supports multiple cards and autoprobe (without MPU-401 port).
763 Module for Gravis UltraSound MAX sound card.
765 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
766 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
767 dma1 - DMA # for GF1 chip (1,3,5,6,7)
768 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
769 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
770 voices - GF1 voices limit (14-32)
771 pcm_voices - reserved PCM voices
773 This module supports multiple cards and autoprobe.
778 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
780 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
781 RV630, RV635, RV670, RV770,
785 [Multiple options for each card instance]
786 model - force the model name
787 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
788 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
789 When the bit 8 (0x100) is set, the lower 8 bits are used
790 as the "fixed" codec slots; i.e. the driver probes the
791 slots regardless what hardware reports back
792 probe_only - Only probing and no codec initialization (default=off);
793 Useful to check the initial codec status for debugging
794 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
795 Passing -1 will make the driver to choose the appropriate
796 value based on the controller chip.
797 patch - Specifies the early "patch" files to modify the HD-audio
798 setup before initializing the codecs. This option is
799 available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
800 See HD-Audio.txt for details.
802 [Single (global) options]
803 single_cmd - Use single immediate commands to communicate with
804 codecs (for debugging only)
805 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
806 power_save - Automatic power-saving timeout (in second, 0 =
808 power_save_controller - Reset HD-audio controller in power-saving mode
811 This module supports multiple cards and autoprobe.
813 See Documentation/sound/alsa/HD-Audio.txt for more details about
816 Each codec may have a model table for different configurations.
817 If your machine isn't listed there, the default (usually minimal)
818 configuration is set up. You can pass "model=<name>" option to
819 specify a certain model in such a case. There are different
820 models depending on the codec chip. The list of available models
821 is found in HD-Audio-Models.txt
823 The model name "genric" is treated as a special case. When this
824 model is given, the driver uses the generic codec parser without
825 "codec-patch". It's sometimes good for testing and debugging.
827 If the default configuration doesn't work and one of the above
828 matches with your device, report it together with alsa-info.sh
829 output (with --no-upload option) to kernel bugzilla or alsa-devel
830 ML (see the section "Links and Addresses").
832 power_save and power_save_controller options are for power-saving
833 mode. See powersave.txt for details.
835 Note 2: If you get click noises on output, try the module option
836 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
837 register value without FIFO size correction as the current
838 DMA pointer. position_fix=2 will make the driver to use
839 the position buffer instead of reading SD_LPIB register.
840 (Usually SD_LPIB register is more accurate than the
843 NB: If you get many "azx_get_response timeout" messages at
844 loading, it's likely a problem of interrupts (e.g. ACPI irq
845 routing). Try to boot with options like "pci=noacpi". Also, you
846 can try "single_cmd=1" module option. This will switch the
847 communication method between HDA controller and codecs to the
848 single immediate commands instead of CORB/RIRB. Basically, the
849 single command mode is provided only for BIOS, and you won't get
850 unsolicited events, too. But, at least, this works independently
851 from the irq. Remember this is a last resort, and should be
852 avoided as much as possible...
854 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
855 On some hardwares, you may need to add a proper probe_mask option
856 to avoid the "azx_get_response timeout" problem above, instead.
857 This occurs when the access to non-existing or non-working codec slot
858 (likely a modem one) causes a stall of the communication via HD-audio
859 bus. You can see which codec slots are probed by enabling
860 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
861 proc files. Then limit the slots to probe by probe_mask option.
862 For example, probe_mask=1 means to probe only the first slot, and
863 probe_mask=4 means only the third slot.
865 The power-management is supported.
870 Module for RME Hammerfall DSP audio interface(s)
872 This module supports multiple cards.
874 Note: The firmware data can be automatically loaded via hotplug
875 when CONFIG_FW_LOADER is set. Otherwise, you need to load
876 the firmware via hdsploader utility included in alsa-tools
878 The firmware data is found in alsa-firmware package.
880 Note: snd-page-alloc module does the job which snd-hammerfall-mem
881 module did formerly. It will allocate the buffers in advance
882 when any HDSP cards are found. To make the buffer
883 allocation sure, load snd-page-alloc module in the early
884 stage of boot sequence. See "Early Buffer Allocation"
890 Module for RME HDSP MADI board.
892 precise_ptr - Enable precise pointer, or disable.
893 line_outs_monitor - Send playback streams to analog outs by default.
894 enable_monitor - Enable Analog Out on Channel 63/64 by default.
896 See hdspm.txt for details.
901 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
903 This module supports autoprobe and multiple cards.
908 Module for Envy24 (ICE1712) based PCI sound cards.
909 * MidiMan M Audio Delta 1010
910 * MidiMan M Audio Delta 1010LT
911 * MidiMan M Audio Delta DiO 2496
912 * MidiMan M Audio Delta 66
913 * MidiMan M Audio Delta 44
914 * MidiMan M Audio Delta 410
915 * MidiMan M Audio Audiophile 2496
921 * Hoontech SoundTrack DSP 24
922 * Hoontech SoundTrack DSP 24 Value
923 * Hoontech SoundTrack DSP 24 Media 7.1
924 * Event Electronics, EZ8
926 * Lionstracs, Mediastaton
929 model - Use the given board model, one of the following:
930 delta1010, dio2496, delta66, delta44, audiophile, delta410,
931 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
932 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
933 phase88, mediastation
934 omni - Omni I/O support for MidiMan M-Audio Delta44/66
935 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
936 in msec resolution, default value is 500 (0.5 sec)
938 This module supports multiple cards and autoprobe. Note: The consumer part
939 is not used with all Envy24 based cards (for example in the MidiMan Delta
942 Note: The supported board is detected by reading EEPROM or PCI
943 SSID (if EEPROM isn't available). You can override the
944 model by passing "model" module option in case that the
945 driver isn't configured properly or you want to try another
951 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
952 * MidiMan M Audio Revolution 5.1
953 * MidiMan M Audio Revolution 7.1
954 * MidiMan M Audio Audiophile 192
956 * TerraTec Aureon 5.1 Sky
957 * TerraTec Aureon 7.1 Space
958 * TerraTec Aureon 7.1 Universe
961 * AudioTrak Prodigy 7.1
962 * AudioTrak Prodigy 7.1 LT
963 * AudioTrak Prodigy 7.1 XT
964 * AudioTrak Prodigy 7.1 HIFI
965 * AudioTrak Prodigy 7.1 HD2
966 * AudioTrak Prodigy 192
968 * Albatron K8X800 Pro II
978 * Hercules Fortissimo IV
979 * EGO-SYS WaveTerminal 192M
981 model - Use the given board model, one of the following:
982 revo51, revo71, amp2000, prodigy71, prodigy71lt,
983 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
984 juli, aureon51, aureon71, universe, ap192, k8x800,
985 phase22, phase28, ms300, av710, se200pci, se90pci,
986 fortissimo4, sn25p, WT192M, maya44
988 This module supports multiple cards and autoprobe.
990 Note: The supported board is detected by reading EEPROM or PCI
991 SSID (if EEPROM isn't available). You can override the
992 model by passing "model" module option in case that the
993 driver isn't configured properly or you want to try another
999 Module for Echoaudio Indigo
1001 This module supports multiple cards.
1002 The driver requires the firmware loader support on kernel.
1007 Module for Echoaudio Indigo DJ
1009 This module supports multiple cards.
1010 The driver requires the firmware loader support on kernel.
1015 Module for Echoaudio Indigo IO
1017 This module supports multiple cards.
1018 The driver requires the firmware loader support on kernel.
1023 Module for AC'97 motherboards from Intel and compatibles.
1024 * Intel i810/810E, i815, i820, i830, i84x, MX440
1025 ICH5, ICH6, ICH7, 6300ESB, ESB2
1026 * SiS 7012 (SiS 735)
1027 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1029 * AMD AMD768, AMD8111
1032 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1033 ac97_quirk - AC'97 workaround for strange hardware
1034 See "AC97 Quirk Option" section below.
1035 buggy_irq - Enable workaround for buggy interrupts on some
1036 motherboards (default yes on nForce chips,
1038 buggy_semaphore - Enable workaround for hardwares with buggy
1039 semaphores (e.g. on some ASUS laptops)
1041 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1042 from the controller chip
1043 (0 = off, 1 = on, -1 = default)
1045 This module supports one chip and autoprobe.
1047 Note: the latest driver supports auto-detection of chip clock.
1048 if you still encounter too fast playback, specify the clock
1049 explicitly via the module option "ac97_clock=41194".
1051 Joystick/MIDI ports are not supported by this driver. If your
1052 motherboard has these devices, use the ns558 or snd-mpu401
1053 modules, respectively.
1055 The power-management is supported.
1057 Module snd-intel8x0m
1058 --------------------
1060 Module for Intel ICH (i8x0) chipset MC97 modems.
1061 * Intel i810/810E, i815, i820, i830, i84x, MX440
1063 * SiS 7013 (SiS 735)
1064 * NVidia NForce, NForce2, NForce2s, NForce3
1068 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1070 This module supports one card and autoprobe.
1072 Note: The default index value of this module is -2, i.e. the first
1075 The power-management is supported.
1077 Module snd-interwave
1078 --------------------
1080 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1081 and other sound cards based on AMD InterWave (tm) chip.
1083 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1084 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1085 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1086 effect - 1 = InterWave effects enable (default 0);
1088 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1090 with isapnp=0, the following options are available:
1092 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1093 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1094 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1095 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1097 This module supports multiple cards, autoprobe and ISA PnP.
1099 Module snd-interwave-stb
1100 ------------------------
1102 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1103 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1104 circuit for extended control of bass, treble and master volume.
1106 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1107 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1108 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1109 effect - 1 = InterWave effects enable (default 0);
1111 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1113 with isapnp=0, the following options are available:
1115 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1116 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1117 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1118 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1119 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1121 This module supports multiple cards, autoprobe and ISA PnP.
1126 Module for Korg 1212 IO PCI card
1128 This module supports multiple cards.
1133 Module for Echoaudio Layla20
1135 This module supports multiple cards.
1136 The driver requires the firmware loader support on kernel.
1141 Module for Echoaudio Layla24
1143 This module supports multiple cards.
1144 The driver requires the firmware loader support on kernel.
1149 Module for Digigram LX6464ES boards
1151 This module supports multiple cards.
1156 Module for Allegro/Maestro3 chips
1158 external_amp - enable external amp (enabled by default)
1159 amp_gpio - GPIO pin number for external amp (0-15) or
1160 -1 for default pin (8 for allegro, 1 for
1163 This module supports autoprobe and multiple chips.
1165 Note: the binding of amplifier is dependent on hardware.
1166 If there is no sound even though all channels are unmuted, try to
1167 specify other gpio connection via amp_gpio option.
1168 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1171 The power-management is supported.
1176 Module for Echoaudio Mia
1178 This module supports multiple cards.
1179 The driver requires the firmware loader support on kernel.
1184 Module for Miro soundcards: miroSOUND PCM 1 pro,
1186 miroSOUND PCM 20 Radio.
1188 port - Port # (0x530,0x604,0xe80,0xf40)
1189 irq - IRQ # (5,7,9,10,11)
1190 dma1 - 1st dma # (0,1,3)
1191 dma2 - 2nd dma # (0,1)
1192 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1193 mpu_irq - MPU-401 irq # (5,7,9,10)
1194 fm_port - FM Port # (0x388)
1195 wss - enable WSS mode
1196 ide - enable onboard ide support
1201 Module for Digigram miXart8 sound cards.
1203 This module supports multiple cards.
1204 Note: One miXart8 board will be represented as 4 alsa cards.
1205 See MIXART.txt for details.
1207 When the driver is compiled as a module and the hotplug firmware
1208 is supported, the firmware data is loaded via hotplug automatically.
1209 Install the necessary firmware files in alsa-firmware package.
1210 When no hotplug fw loader is available, you need to load the
1211 firmware via mixartloader utility in alsa-tools package.
1216 Module for Echoaudio Mona
1218 This module supports multiple cards.
1219 The driver requires the firmware loader support on kernel.
1224 Module for MPU-401 UART devices.
1226 port - port number or -1 (disable)
1227 irq - IRQ number or -1 (disable)
1228 pnp - PnP detection - 0 = disable, 1 = enable (default)
1230 This module supports multiple devices and PnP.
1232 Module snd-msnd-classic
1233 -----------------------
1235 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1238 io - Port # for msnd-classic card
1239 irq - IRQ # for msnd-classic card
1240 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1242 write_ndelay - enable write ndelay (default = 1)
1243 calibrate_signal - calibrate signal (default = 0)
1244 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1245 digital - Digital daughterboard present (default = 0)
1246 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1247 reset - Reset all devices
1248 mpu_io - MPU401 I/O port
1249 mpu_irq - MPU401 irq#
1250 ide_io0 - IDE port #0
1251 ide_io1 - IDE port #1
1253 joystick_io - Joystick I/O port
1255 The driver requires firmware files "turtlebeach/msndinit.bin" and
1256 "turtlebeach/msndperm.bin" in the proper firmware directory.
1258 See Documentation/sound/oss/MultiSound for important information
1259 about this driver. Note that it has been discontinued, but the
1260 Voyetra Turtle Beach knowledge base entry for it is still available
1262 http://www.turtlebeach.com/site/kb_ftp/790.asp
1264 Module snd-msnd-pinnacle
1265 ------------------------
1267 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1269 io - Port # for pinnacle/fiji card
1270 irq - IRQ # for pinnalce/fiji card
1271 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1273 write_ndelay - enable write ndelay (default = 1)
1274 calibrate_signal - calibrate signal (default = 0)
1275 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1277 The driver requires firmware files "turtlebeach/pndspini.bin" and
1278 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1283 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1286 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1287 irq - IRQ # for MTPAV (7,5, default=7)
1288 hwports - number of supported hardware ports, default=8.
1290 Module supports only 1 card. This module has no enable option.
1295 Module for Ego Systems (ESI) Miditerminal 4140
1297 This module supports multiple devices.
1298 Requires parport (CONFIG_PARPORT).
1303 Module for NeoMagic NM256AV/ZX chips
1305 playback_bufsize - max playback frame size in kB (4-128kB)
1306 capture_bufsize - max capture frame size in kB (4-128kB)
1307 force_ac97 - 0 or 1 (disabled by default)
1308 buffer_top - specify buffer top address
1309 use_cache - 0 or 1 (disabled by default)
1310 vaio_hack - alias buffer_top=0x25a800
1311 reset_workaround - enable AC97 RESET workaround for some laptops
1312 reset_workaround2 - enable extended AC97 RESET workaround for some
1315 This module supports one chip and autoprobe.
1317 The power-management is supported.
1319 Note: on some notebooks the buffer address cannot be detected
1320 automatically, or causes hang-up during initialization.
1321 In such a case, specify the buffer top address explicitly via
1322 the buffer_top option.
1324 Sony F250: buffer_top=0x25a800
1325 Sony F270: buffer_top=0x272800
1326 The driver supports only ac97 codec. It's possible to force
1327 to initialize/use ac97 although it's not detected. In such a
1328 case, use force_ac97=1 option - but *NO* guarantee whether it
1331 Note: The NM256 chip can be linked internally with non-AC97
1332 codecs. This driver supports only the AC97 codec, and won't work
1333 with machines with other (most likely CS423x or OPL3SAx) chips,
1334 even though the device is detected in lspci. In such a case, try
1335 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1336 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1337 and proper hardware parameters in the case without ISA PnP.
1339 Note: some laptops need a workaround for AC97 RESET. For the
1340 known hardware like Dell Latitude LS and Sony PCG-F305, this
1341 workaround is enabled automatically. For other laptops with a
1342 hard freeze, you can try reset_workaround=1 option.
1344 Note: Dell Latitude CSx laptops have another problem regarding
1345 AC97 RESET. On these laptops, reset_workaround2 option is
1346 turned on as default. This option is worth to try if the
1347 previous reset_workaround option doesn't help.
1349 Note: This driver is really crappy. It's a porting from the
1350 OSS driver, which is a result of black-magic reverse engineering.
1351 The detection of codec will fail if the driver is loaded *after*
1352 X-server as described above. You might be able to force to load
1353 the module, but it may result in hang-up. Hence, make sure that
1354 you load this module *before* X if you encounter this kind of
1360 Module for Yamaha OPL3-SA2/SA3 sound cards.
1362 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1364 with isapnp=0, the following options are available:
1366 port - control port # for OPL3-SA chip (0x370)
1367 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1368 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1369 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1370 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1371 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1372 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1373 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1375 This module supports multiple cards and ISA PnP. It does not support
1376 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1378 The power-management is supported.
1380 Module snd-opti92x-ad1848
1381 -------------------------
1383 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1384 Module works with OAK Mozart cards as well.
1386 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1388 with isapnp=0, the following options are available:
1390 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1391 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1392 fm_port - port # for OPL3 device (0x388)
1393 irq - IRQ # for WSS chip (5,7,9,10,11)
1394 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1395 dma1 - first DMA # for WSS chip (0,1,3)
1397 This module supports only one card, autoprobe and PnP.
1399 Module snd-opti92x-cs4231
1400 -------------------------
1402 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1404 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1406 with isapnp=0, the following options are available:
1408 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1409 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1410 fm_port - port # for OPL3 device (0x388)
1411 irq - IRQ # for WSS chip (5,7,9,10,11)
1412 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1413 dma1 - first DMA # for WSS chip (0,1,3)
1414 dma2 - second DMA # for WSS chip (0,1,3)
1416 This module supports only one card, autoprobe and PnP.
1421 Module for sound cards based on OPTi 82c93x chips.
1423 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1425 with isapnp=0, the following options are available:
1427 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1428 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1429 fm_port - port # for OPL3 device (0x388)
1430 irq - IRQ # for WSS chip (5,7,9,10,11)
1431 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1432 dma1 - first DMA # for WSS chip (0,1,3)
1433 dma2 - second DMA # for WSS chip (0,1,3)
1435 This module supports only one card, autoprobe and PnP.
1440 Module for sound cards based on the C-Media CMI8788 chip:
1442 * AuzenTech X-Meridian
1444 * Club3D Theatron DTS
1445 * HT-Omega Claro (plus)
1446 * HT-Omega Claro halo (XT)
1447 * Razer Barracuda AC-1
1450 This module supports autoprobe and multiple cards.
1455 Module for internal PC-Speaker.
1457 nopcm - Disable PC-Speaker PCM sound. Only beeps remain.
1458 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1460 This module supports system beeps, some kind of PCM playback and
1461 even a few mixer controls.
1466 Module for Digigram PCXHR boards
1468 This module supports multiple cards.
1470 Module snd-portman2x4
1471 ---------------------
1473 Module for Midiman Portman 2x4 parallel port MIDI interface
1475 This module supports multiple cards.
1477 Module snd-powermac (on ppc only)
1478 ---------------------------------
1480 Module for PowerMac, iMac and iBook on-board soundchips
1482 enable_beep - enable beep using PCM (enabled as default)
1484 Module supports autoprobe a chip.
1486 Note: the driver may have problems regarding endianess.
1488 The power-management is supported.
1490 Module snd-pxa2xx-ac97 (on arm only)
1491 ------------------------------------
1493 Module for AC97 driver for the Intel PXA2xx chip
1495 For ARM architecture only.
1497 The power-management is supported.
1502 Module for Conexant Riptide chip
1504 joystick_port - Joystick port # (default: 0x200)
1505 mpu_port - MPU401 port # (default: 0x330)
1506 opl3_port - OPL3 port # (default: 0x388)
1508 This module supports multiple cards.
1509 The driver requires the firmware loader support on kernel.
1510 You need to install the firmware file "riptide.hex" to the standard
1511 firmware path (e.g. /lib/firmware).
1516 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1517 Prodif96 and Prodif Gold) sound cards.
1519 This module supports multiple cards.
1524 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1526 This module supports multiple cards.
1531 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1533 precise_ptr - Enable precise pointer (doesn't work reliably).
1536 This module supports multiple cards.
1538 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1539 module did formerly. It will allocate the buffers in advance
1540 when any RME9652 cards are found. To make the buffer
1541 allocation sure, load snd-page-alloc module in the early
1542 stage of boot sequence. See "Early Buffer Allocation"
1545 Module snd-sa11xx-uda1341 (on arm only)
1546 ---------------------------------------
1548 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1550 Module supports only one card.
1551 Module has no enable and index options.
1553 The power-management is supported.
1558 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1562 port - port # for SB DSP chip (0x220,0x240,0x260)
1563 irq - IRQ # for SB DSP chip (5,7,9,10)
1564 dma8 - DMA # for SB DSP chip (1,3)
1566 This module supports multiple cards and autoprobe.
1568 The power-management is supported.
1570 Module snd-sb16 and snd-sbawe
1571 -----------------------------
1573 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1574 SoundBlaster AWE 32 (PnP),
1575 SoundBlaster AWE 64 PnP
1577 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1578 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1579 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1581 with isapnp=0, the following options are available:
1583 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1584 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1585 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1586 (snd-sbawe module only)
1587 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1588 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1589 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1591 This module supports multiple cards, autoprobe and ISA PnP.
1593 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1594 disable 16bit DMA with dma16 = -1 module parameter.
1595 Also, all Sound Blaster 16 type cards can operate in 16-bit
1596 half duplex mode through 8-bit DMA channel by disabling their
1599 The power-management is supported.
1604 Module for Gallant SC-6000 soundcard and later models: SC-6600
1607 port - Port # (0x220 or 0x240)
1608 mss_port - MSS Port # (0x530 or 0xe80)
1609 irq - IRQ # (5,7,9,10,11)
1610 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1612 joystick - Enable gameport - 0 = disable (default), 1 = enable
1614 This module supports multiple cards.
1616 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1621 Module for Aztech Sound Galaxy sound card.
1623 sbport - Port # for SB16 interface (0x220,0x240)
1624 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1625 irq - IRQ # (7,9,10,11)
1628 This module supports multiple cards.
1630 The power-management is supported.
1635 Module for ENSONIQ SoundScape cards.
1637 port - Port # (PnP setup)
1638 wss_port - WSS Port # (PnP setup)
1639 irq - IRQ # (PnP setup)
1640 mpu_irq - MPU-401 IRQ # (PnP setup)
1641 dma - DMA # (PnP setup)
1642 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1643 joystick - Enable gameport - 0 = disable (default), 1 = enable
1645 This module supports multiple cards.
1647 The driver requires the firmware loader support on kernel.
1649 Module snd-sun-amd7930 (on sparc only)
1650 --------------------------------------
1652 Module for AMD7930 sound chips found on Sparcs.
1654 This module supports multiple cards.
1656 Module snd-sun-cs4231 (on sparc only)
1657 -------------------------------------
1659 Module for CS4231 sound chips found on Sparcs.
1661 This module supports multiple cards.
1663 Module snd-sun-dbri (on sparc only)
1664 -----------------------------------
1666 Module for DBRI sound chips found on Sparcs.
1668 This module supports multiple cards.
1670 Module snd-wavefront
1671 --------------------
1673 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1675 use_cs4232_midi - Use CS4232 MPU-401 interface
1676 (inaccessibly located inside your computer)
1677 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1679 with isapnp=0, the following options are available:
1681 cs4232_pcm_port - Port # for CS4232 PCM interface.
1682 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1683 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1684 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1685 ics2115_port - Port # for ICS2115
1686 ics2115_irq - IRQ # for ICS2115
1687 fm_port - FM OPL-3 Port #
1688 dma1 - DMA1 # for CS4232 PCM interface.
1689 dma2 - DMA2 # for CS4232 PCM interface.
1691 The below are options for wavefront_synth features:
1692 wf_raw - Assume that we need to boot the OS (default:no)
1693 If yes, then during driver loading, the state of the board is
1694 ignored, and we reset the board and load the firmware anyway.
1695 fx_raw - Assume that the FX process needs help (default:yes)
1696 If false, we'll leave the FX processor in whatever state it is
1697 when the driver is loaded. The default is to download the
1698 microprogram and associated coefficients to set it up for
1699 "default" operation, whatever that means.
1700 debug_default - Debug parameters for card initialization
1701 wait_usecs - How long to wait without sleeping, usecs
1703 This magic number seems to give pretty optimal throughput
1704 based on my limited experimentation.
1705 If you want to play around with it and find a better value, be
1706 my guest. Remember, the idea is to get a number that causes us
1707 to just busy wait for as many WaveFront commands as possible,
1708 without coming up with a number so large that we hog the whole
1710 Specifically, with this number, out of about 134,000 status
1711 waits, only about 250 result in a sleep.
1712 sleep_interval - How long to sleep when waiting for reply
1714 sleep_tries - How many times to try sleeping during a wait
1716 ospath - Pathname to processed ICS2115 OS firmware
1717 (default:wavefront.os)
1718 The path name of the ISC2115 OS firmware. In the recent
1719 version, it's handled via firmware loader framework, so it
1720 must be installed in the proper path, typically,
1722 reset_time - How long to wait for a reset to take effect
1724 ramcheck_time - How many seconds to wait for the RAM test
1726 osrun_time - How many seconds to wait for the ICS2115 OS
1729 This module supports multiple cards and ISA PnP.
1731 Note: the firmware file "wavefront.os" was located in the earlier
1732 version in /etc. Now it's loaded via firmware loader, and
1733 must be in the proper firmware path, such as /lib/firmware.
1734 Copy (or symlink) the file appropriately if you get an error
1735 regarding firmware downloading after upgrading the kernel.
1737 Module snd-sonicvibes
1738 ---------------------
1740 Module for S3 SonicVibes PCI sound cards.
1741 * PINE Schubert 32 PCI
1743 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1744 - SoundCard must have onboard SRAM for this.
1745 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1747 This module supports multiple cards and autoprobe.
1749 Module snd-serial-u16550
1750 ------------------------
1752 Module for UART16550A serial MIDI ports.
1754 port - port # for UART16550A chip
1755 irq - IRQ # for UART16550A chip, -1 = poll mode
1756 speed - speed in bauds (9600,19200,38400,57600,115200)
1758 base - base for divisor in bauds (57600,115200,230400,460800)
1760 outs - number of MIDI ports in a serial port (1-4)
1762 adaptor - Type of adaptor.
1763 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1764 3 = MS-124W M/B, 4 = Generic
1766 This module supports multiple cards. This module does not support autoprobe
1767 thus the main port must be specified!!! Other options are optional.
1772 Module for Trident 4DWave DX/NX sound cards.
1773 * Best Union Miss Melody 4DWave PCI
1775 * Warpspeed ONSpeed 4DWave PCI
1778 * CHIC True Sound 4Dwave
1779 * Shark Predator4D-PCI
1780 * Jaton SonicWave 4D
1781 * SiS SI7018 PCI Audio
1782 * Hoontech SoundTrack Digital 4DWave NX
1784 pcm_channels - max channels (voices) reserved for PCM
1785 wavetable_size - max wavetable size in kB (4-?kb)
1787 This module supports multiple cards and autoprobe.
1789 The power-management is supported.
1791 Module snd-usb-audio
1792 --------------------
1794 Module for USB audio and USB MIDI devices.
1796 vid - Vendor ID for the device (optional)
1797 pid - Product ID for the device (optional)
1798 nrpacks - Max. number of packets per URB (default: 8)
1799 async_unlink - Use async unlink mode (default: yes)
1800 device_setup - Device specific magic number (optional)
1801 - Influence depends on the device
1803 ignore_ctl_error - Ignore any USB-controller regarding mixer
1804 interface (default: no)
1806 This module supports multiple devices, autoprobe and hotplugging.
1808 NB: nrpacks parameter can be modified dynamically via sysfs.
1809 Don't put the value over 20. Changing via sysfs has no sanity
1811 NB: async_unlink=0 would cause Oops. It remains just for
1812 debugging purpose (if any).
1813 NB: ignore_ctl_error=1 may help when you get an error at accessing
1814 the mixer element such as URB error -22. This happens on some
1815 buggy USB device or the controller.
1817 Module snd-usb-caiaq
1818 --------------------
1820 Module for caiaq UB audio interfaces,
1821 * Native Instruments RigKontrol2
1822 * Native Instruments Kore Controller
1823 * Native Instruments Audio Kontrol 1
1824 * Native Instruments Audio 8 DJ
1826 This module supports multiple devices, autoprobe and hotplugging.
1828 Module snd-usb-usx2y
1829 --------------------
1831 Module for Tascam USB US-122, US-224 and US-428 devices.
1833 This module supports multiple devices, autoprobe and hotplugging.
1835 Note: you need to load the firmware via usx2yloader utility included
1836 in alsa-tools and alsa-firmware packages.
1841 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1842 8233A, 8233C, 8235, 8237 (south) bridge.
1844 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1846 joystick - Enable joystick (default off) [VIA686A/686B only]
1847 ac97_clock - AC'97 codec clock base (default 48000Hz)
1848 dxs_support - support DXS channels,
1849 0 = auto (default), 1 = enable, 2 = disable,
1850 3 = 48k only, 4 = no VRA, 5 = enable any sample
1851 rate and different sample rates on different
1853 [VIA8233/C, 8235, 8237 only]
1854 ac97_quirk - AC'97 workaround for strange hardware
1855 See "AC97 Quirk Option" section below.
1857 This module supports one chip and autoprobe.
1859 Note: on some SMP motherboards like MSI 694D the interrupts might
1860 not be generated properly. In such a case, please try to
1861 set the SMP (or MPS) version on BIOS to 1.1 instead of
1862 default value 1.4. Then the interrupt number will be
1863 assigned under 15. You might also upgrade your BIOS.
1865 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1866 channels as the first PCM. On these channels, up to 4
1867 streams can be played at the same time, and the controller
1868 can perform sample rate conversion with separate rates for
1870 As default (dxs_support = 0), 48k fixed rate is chosen
1871 except for the known devices since the output is often
1872 noisy except for 48k on some mother boards due to the
1874 Please try once dxs_support=5 and if it works on other
1875 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1876 know the PCI subsystem vendor/device id's (output of
1878 If dxs_support=5 does not work, try dxs_support=4; if it
1879 doesn't work too, try dxs_support=1. (dxs_support=1 is
1880 usually for old motherboards. The correct implemented
1881 board should work with 4 or 5.) If it still doesn't
1882 work and the default setting is ok, dxs_support=3 is the
1883 right choice. If the default setting doesn't work at all,
1884 try dxs_support=2 to disable the DXS channels.
1885 In any cases, please let us know the result and the
1886 subsystem vendor/device ids. See "Links and Addresses"
1889 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1890 additionally. The mpu_port option is for VIA686 chips only.
1892 The power-management is supported.
1894 Module snd-via82xx-modem
1895 ------------------------
1897 Module for VIA82xx AC97 modem
1899 ac97_clock - AC'97 codec clock base (default 48000Hz)
1901 This module supports one card and autoprobe.
1903 Note: The default index value of this module is -2, i.e. the first
1906 The power-management is supported.
1911 Module for virtual rawmidi devices.
1912 This module creates virtual rawmidi devices which communicate
1913 to the corresponding ALSA sequencer ports.
1915 midi_devs - MIDI devices # (1-4, default=4)
1917 This module supports multiple cards.
1922 Module for sound cards based on the Asus AV100/AV200 chips,
1923 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), Essence ST
1924 (Deluxe) and Essence STX.
1926 This module supports autoprobe and multiple cards.
1931 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1933 mic - Enable Microphone on V222 Mic (NYI)
1934 ibl - Capture IBL size. (default = 0, minimum size)
1936 This module supports multiple cards.
1938 When the driver is compiled as a module and the hotplug firmware
1939 is supported, the firmware data is loaded via hotplug automatically.
1940 Install the necessary firmware files in alsa-firmware package.
1941 When no hotplug fw loader is available, you need to load the
1942 firmware via vxloader utility in alsa-tools package. To invoke
1943 vxloader automatically, add the following to /etc/modprobe.conf
1945 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1947 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1948 /etc/modules.conf, instead.)
1949 IBL size defines the interrupts period for PCM. The smaller size
1950 gives smaller latency but leads to more CPU consumption, too.
1951 The size is usually aligned to 126. As default (=0), the smallest
1952 size is chosen. The possible IBL values can be found in
1953 /proc/asound/cardX/vx-status proc file.
1955 The power-management is supported.
1960 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1962 ibl - Capture IBL size. (default = 0, minimum size)
1964 This module supports multiple cards. The module is compiled only when
1965 PCMCIA is supported on kernel.
1967 With the older 2.6.x kernel, to activate the driver via the card
1968 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1969 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1970 longer require a config file.
1972 When the driver is compiled as a module and the hotplug firmware
1973 is supported, the firmware data is loaded via hotplug automatically.
1974 Install the necessary firmware files in alsa-firmware package.
1975 When no hotplug fw loader is available, you need to load the
1976 firmware via vxloader utility in alsa-tools package.
1978 About capture IBL, see the description of snd-vx222 module.
1980 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1983 The power-management is supported.
1988 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1990 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1991 1 (auto-detect for YMF744/754 only)
1992 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1993 1 (auto-detect for YMF744/754 only)
1994 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1996 rear_switch - enable shared rear/line-in switch (bool)
1998 This module supports autoprobe and multiple chips.
2000 The power-management is supported.
2002 Module snd-pdaudiocf
2003 --------------------
2005 Module for Sound Core PDAudioCF sound card.
2007 The power-management is supported.
2013 The ac97_quirk option is used to enable/override the workaround for
2014 specific devices on drivers for on-board AC'97 controllers like
2015 snd-intel8x0. Some hardware have swapped output pins between Master
2016 and Headphone, or Surround (thanks to confusion of AC'97
2017 specifications from version to version :-)
2019 The driver provides the auto-detection of known problematic devices,
2020 but some might be unknown or wrongly detected. In such a case, pass
2021 the proper value with this option.
2023 The following strings are accepted:
2024 - default Don't override the default setting
2025 - none Disable the quirk
2026 - hp_only Bind Master and Headphone controls as a single control
2027 - swap_hp Swap headphone and master controls
2028 - swap_surround Swap master and surround controls
2029 - ad_sharing For AD1985, turn on OMS bit and use headphone
2030 - alc_jack For ALC65x, turn on the jack sense mode
2031 - inv_eapd Inverted EAPD implementation
2032 - mute_led Bind EAPD bit for turning on/off mute LED
2034 For backward compatibility, the corresponding integer value -1, 0,
2035 ... are accepted, too.
2037 For example, if "Master" volume control has no effect on your device
2038 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2041 Configuring Non-ISAPNP Cards
2042 ============================
2044 When the kernel is configured with ISA-PnP support, the modules
2045 supporting the isapnp cards will have module options "isapnp".
2046 If this option is set, *only* the ISA-PnP devices will be probed.
2047 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2048 together with the proper i/o and irq configuration.
2050 When the kernel is configured without ISA-PnP support, isapnp option
2051 will be not built in.
2054 Module Autoloading Support
2055 ==========================
2057 The ALSA drivers can be loaded automatically on demand by defining
2058 module aliases. The string 'snd-card-%1' is requested for ALSA native
2059 devices where %i is sound card number from zero to seven.
2061 To auto-load an ALSA driver for OSS services, define the string
2062 'sound-slot-%i' where %i means the slot number for OSS, which
2063 corresponds to the card index of ALSA. Usually, define this
2064 as the same card module.
2066 An example configuration for a single emu10k1 card is like below:
2067 ----- /etc/modprobe.conf
2068 alias snd-card-0 snd-emu10k1
2069 alias sound-slot-0 snd-emu10k1
2070 ----- /etc/modprobe.conf
2072 The available number of auto-loaded sound cards depends on the module
2073 option "cards_limit" of snd module. As default it's set to 1.
2074 To enable the auto-loading of multiple cards, specify the number of
2075 sound cards in that option.
2077 When multiple cards are available, it'd better to specify the index
2078 number for each card via module option, too, so that the order of
2079 cards is kept consistent.
2081 An example configuration for two sound cards is like below:
2083 ----- /etc/modprobe.conf
2085 options snd cards_limit=2
2086 alias snd-card-0 snd-interwave
2087 alias snd-card-1 snd-ens1371
2088 options snd-interwave index=0
2089 options snd-ens1371 index=1
2091 alias sound-slot-0 snd-interwave
2092 alias sound-slot-1 snd-ens1371
2093 ----- /etc/modprobe.conf
2095 In this example, the interwave card is always loaded as the first card
2096 (index 0) and ens1371 as the second (index 1).
2098 Alternative (and new) way to fixate the slot assignment is to use
2099 "slots" option of snd module. In the case above, specify like the
2102 options snd slots=snd-interwave,snd-ens1371
2104 Then, the first slot (#0) is reserved for snd-interwave driver, and
2105 the second (#1) for snd-ens1371. You can omit index option in each
2106 driver if slots option is used (although you can still have them at
2107 the same time as long as they don't conflict).
2109 The slots option is especially useful for avoiding the possible
2110 hot-plugging and the resultant slot conflict. For example, in the
2111 case above again, the first two slots are already reserved. If any
2112 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2113 snd-ens1371, it will be assigned to the third or later slot.
2115 When a module name is given with '!', the slot will be given for any
2116 modules but that name. For example, "slots=!snd-pcsp" will reserve
2117 the first slot for any modules but snd-pcsp.
2120 ALSA PCM devices to OSS devices mapping
2121 =======================================
2123 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2124 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2125 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2126 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2127 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2128 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2129 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2130 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2131 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2133 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2134 sound card number and second means device number. The ALSA devices
2135 have either 'c' or 'p' suffix indicating the direction, capture and
2136 playback, respectively.
2138 Please note that the device mapping above may be varied via the module
2139 options of snd-pcm-oss module.
2142 Proc interfaces (/proc/asound)
2143 ==============================
2145 /proc/asound/card#/pcm#[cp]/oss
2146 -------------------------------
2147 String "erase" - erase all additional informations about OSS applications
2148 String "<app_name> <fragments> <fragment_size> [<options>]"
2150 <app_name> - name of application with (higher priority) or without path
2151 <fragments> - number of fragments or zero if auto
2152 <fragment_size> - size of fragment in bytes or zero if auto
2153 <options> - optional parameters
2154 - disable the application tries to open a pcm device for
2155 this channel but does not want to use it.
2156 (Cause a bug or mmap needs)
2157 It's good for Quake etc...
2158 - direct don't use plugins
2159 - block force block mode (rvplayer)
2160 - non-block force non-block mode
2161 - whole-frag write only whole fragments (optimization affecting
2163 - no-silence do not fill silence ahead to avoid clicks
2164 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2165 instead of filled blocks
2167 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2168 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2169 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2172 Early Buffer Allocation
2173 =======================
2175 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2176 sometimes it's too late to find such spaces when the driver module is
2177 actually loaded due to memory fragmentation. You can pre-allocate the
2178 PCM buffers by loading snd-page-alloc module and write commands to its
2179 proc file in prior, for example, in the early boot stage like
2180 /etc/init.d/*.local scripts.
2182 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2183 usage of page allocation. In writing, you can send the following
2184 commands to the snd-page-alloc driver:
2186 - add VENDOR DEVICE MASK SIZE BUFFERS
2188 VENDOR and DEVICE are PCI vendor and device IDs. They take
2189 integer numbers (0x prefix is needed for the hex).
2190 MASK is the PCI DMA mask. Pass 0 if not restricted.
2191 SIZE is the size of each buffer to allocate. You can pass
2192 k and m suffix for KB and MB. The max number is 16MB.
2193 BUFFERS is the number of buffers to allocate. It must be greater
2194 than 0. The max number is 4.
2198 This will erase the all pre-allocated buffers which are not in
2205 ALSA project homepage
2206 http://www.alsa-project.org
2209 http://bugzilla.kernel.org/
2212 mailto:alsa-devel@alsa-project.org
2215 http://www.alsa-project.org/alsa-info.sh
git://ftp.safe.ca / safe / jmp / linux-2.6 / blob