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.
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.
72 adsp_map - PCM device number maps assigned to the 2st OSS device.
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).
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.
96 amidi_map - MIDI device number maps assigned to the 2st OSS device.
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
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
118 - Default: enabled, for PCI and ISA PnP cards
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
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
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.
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.
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.
184 Module for ALi M5451 PCI chip.
186 pcm_channels - Number of hardware channels assigned for PCM
187 spdif - Support SPDIF I/O
190 This module supports one chip and autoprobe.
192 The power-management is supported.
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.
206 Module for Avance Logic ALS300 and ALS300+
208 This module supports multiple cards.
210 The power-management is supported.
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.
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.
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
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
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).
290 Module for Audiowerk2 sound card
292 This module supports multiple cards.
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.
306 Module for sound cards based on Aztech AZF3328 PCI chip.
308 joystick - Enable joystick (default off)
310 This module supports multiple cards.
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
328 Module for Creative Audigy LS and SB Live 24bit
330 This module supports multiple cards.
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)
349 fmport - (optional) OPL3 I/O port
350 mpuport - (optional) MPU401 I/O port
351 mpuirq - (optional) MPU401 irq #
353 This module supports multiple cards and autoprobe.
355 The power-management is supported.
360 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
362 mpu_port - port address of MIDI interface (8338 only):
363 0x300,0x310,0x320,0x330 = legacy port,
364 0 = disable (default)
365 fm_port - port address of OPL-3 FM synthesizer (8x38 only):
367 1 = integrated PCI port (default on 8738),
369 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
371 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
373 This module supports autoprobe and multiple cards.
375 The power-management is supported.
380 Module for sound cards based on CS4231 ISA chips.
382 port - port # for CS4231 chip
383 mpu_port - port # for MPU-401 UART (optional), -1 = disable
384 irq - IRQ # for CS4231 chip
385 mpu_irq - IRQ # for MPU-401 UART
386 dma1 - first DMA # for CS4231 chip
387 dma2 - second DMA # for CS4231 chip
389 This module supports multiple cards. This module does not support autoprobe
390 thus main port must be specified!!! Other ports are optional.
392 The power-management is supported.
397 Module for sound cards based on CS4232/CS4232A,
398 CS4235/CS4236/CS4236B/CS4237B/
399 CS4238B/CS4239 ISA chips.
401 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
403 with isapnp=0, the following options are available:
405 port - port # for CS4236 chip (PnP setup - 0x534)
406 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
407 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
408 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
409 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
410 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
411 dma1 - first DMA # for CS4236 chip (0,1,3)
412 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
414 This module supports multiple cards. This module does not support autoprobe
415 (if ISA PnP is not used) thus main port and control port must be
416 specified!!! Other ports are optional.
418 The power-management is supported.
420 This module is aliased as snd-cs4232 since it provides the old
421 snd-cs4232 functionality, too.
426 Module for Cirrus Logic CS4281 soundchip.
428 dual_codec - Secondary codec ID (0 = disable, default)
430 This module supports multiple cards.
432 The power-management is supported.
437 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
438 CS4624/CS4630/CS4280 PCI chips.
440 external_amp - Force to enable external amplifier.
441 thinkpad - Force to enable Thinkpad's CLKRUN control.
442 mmap_valid - Support OSS mmap mode (default = 0).
444 This module supports multiple cards and autoprobe.
445 Usually external amp and CLKRUN controls are detected automatically
446 from PCI sub vendor/device ids. If they don't work, give the options
449 The power-management is supported.
454 Module for Cyrix/NatSemi Geode 5530 chip.
456 Module snd-cs5535audio
457 ----------------------
459 Module for multifunction CS5535 companion PCI device
461 The power-management is supported.
466 Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
467 * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
468 * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
469 * Creative Sound Blaster X-Fi Titanium Professional Audio
470 * Creative Sound Blaster X-Fi Titanium
471 * Creative Sound Blaster X-Fi Elite Pro
472 * Creative Sound Blaster X-Fi Platinum
473 * Creative Sound Blaster X-Fi Fatal1ty
474 * Creative Sound Blaster X-Fi XtremeGamer
475 * Creative Sound Blaster X-Fi XtremeMusic
477 reference_rate - reference sample rate, 44100 or 48000 (default)
478 multiple - multiple to ref. sample rate, 1 or 2 (default)
480 This module supports multiple cards.
485 Module for Echoaudio Darla20
487 This module supports multiple cards.
488 The driver requires the firmware loader support on kernel.
493 Module for Echoaudio Darla24
495 This module supports multiple cards.
496 The driver requires the firmware loader support on kernel.
501 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
504 This module supports multiple cards. This module is enabled only with
507 The power-management is supported.
512 Module for the dummy sound card. This "card" doesn't do any output
513 or input, but you may use this module for any application which
514 requires a sound card (like RealPlayer).
516 pcm_devs - Number of PCM devices assigned to each card
517 (default = 1, up to 4)
518 pcm_substreams - Number of PCM substreams assigned to each PCM
519 (default = 8, up to 16)
520 hrtimer - Use hrtimer (=1, default) or system timer (=0)
522 When multiple PCM devices are created, snd-dummy gives different
523 behavior to each PCM device:
524 0 = interleaved with mmap support
525 1 = non-interleaved with mmap support
526 2 = interleaved without mmap
527 3 = non-interleaved without mmap
529 The power-management is supported.
534 Module for Echoaudio 3G cards (Gina3G/Layla3G)
536 This module supports multiple cards.
537 The driver requires the firmware loader support on kernel.
542 Module for EMU10K1/EMU10k2 based PCI sound cards.
543 * Sound Blaster Live!
544 * Sound Blaster PCI 512
545 * Emu APS (partially supported)
546 * Sound Blaster Audigy
548 extin - bitmap of available external inputs for FX8010 (see bellow)
549 extout - bitmap of available external outputs for FX8010 (see bellow)
550 seq_ports - allocated sequencer ports (4 by default)
551 max_synth_voices - limit of voices used for wavetable (64 by default)
552 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
553 given in MB unit. Default value is 128.
554 enable_ir - enable IR
556 This module supports multiple cards and autoprobe.
558 Input & Output configurations [extin/extout]
559 * Creative Card wo/Digital out [0x0003/0x1f03]
560 * Creative Card w/Digital out [0x0003/0x1f0f]
561 * Creative Card w/Digital CD in [0x000f/0x1f0f]
562 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
563 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
564 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
565 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
566 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
567 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
568 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
569 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
570 * Creative Card all ins and outs [0x3fff/0x7fff]
572 The power-management is supported.
577 Module for Creative Emu10k1X (SB Live Dell OEM version)
579 This module supports multiple cards.
584 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
585 * SoundBlaster PCI 64
586 * SoundBlaster PCI 128
588 joystick - Enable joystick (default off)
590 This module supports multiple cards and autoprobe.
592 The power-management is supported.
597 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
598 * SoundBlaster PCI 64
599 * SoundBlaster PCI 128
600 * SoundBlaster Vibra PCI
602 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
603 0 = disable (default), 1 = auto-detect
605 This module supports multiple cards and autoprobe.
607 The power-management is supported.
612 Module for sound cards based on ESS ES968 chip (PnP only).
614 This module supports multiple cards, PnP and autoprobe.
616 The power-management is supported.
621 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
623 port - port # for ES-1688 chip (0x220,0x240,0x260)
624 fm_port - port # for OPL3 (option; share the same port as default)
625 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
626 irq - IRQ # for ES-1688 chip (5,7,9,10)
627 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
628 dma8 - DMA # for ES-1688 chip (0,1,3)
630 This module supports multiple cards and autoprobe (without MPU-401 port).
635 Module for ESS AudioDrive ES-18xx sound cards.
637 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
639 with isapnp=0, the following options are available:
641 port - port # for ES-18xx chip (0x220,0x240,0x260)
642 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
643 fm_port - port # for FM (optional, not used)
644 irq - IRQ # for ES-18xx chip (5,7,9,10)
645 dma1 - first DMA # for ES-18xx chip (0,1,3)
646 dma2 - first DMA # for ES-18xx chip (0,1,3)
648 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
649 port if native ISA PnP routines are not used).
650 When dma2 is equal with dma1, the driver works as half-duplex.
652 The power-management is supported.
657 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
659 This module supports multiple cards and autoprobe.
661 The power-management is supported.
666 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
668 total_bufsize - total buffer size in kB (1-4096kB)
669 pcm_substreams_p - playback channels (1-8, default=2)
670 pcm_substreams_c - capture channels (1-8, default=0)
671 clock - clock (0 = auto-detection)
672 use_pm - support the power-management (0 = off, 1 = on,
674 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
675 joystick - enable joystick (default off)
677 This module supports multiple cards and autoprobe.
679 The power-management is supported.
684 Module for ForteMedia FM801 based PCI sound cards.
686 tea575x_tuner - Enable TEA575x tuner
687 - 1 = MediaForte 256-PCS
688 - 2 = MediaForte 256-PCPR
689 - 3 = MediaForte 64-PCR
690 - High 16-bits are video (radio) device number + 1
691 - example: 0x10002 (MediaForte 256-PCPR, device 1)
693 This module supports multiple cards and autoprobe.
695 The power-management is supported.
700 Module for Echoaudio Gina20
702 This module supports multiple cards.
703 The driver requires the firmware loader support on kernel.
708 Module for Echoaudio Gina24
710 This module supports multiple cards.
711 The driver requires the firmware loader support on kernel.
713 Module snd-gusclassic
714 ---------------------
716 Module for Gravis UltraSound Classic sound card.
718 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
719 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
720 dma1 - DMA # for GF1 chip (1,3,5,6,7)
721 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
722 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
723 voices - GF1 voices limit (14-32)
724 pcm_voices - reserved PCM voices
726 This module supports multiple cards and autoprobe.
728 Module snd-gusextreme
729 ---------------------
731 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
733 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
734 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
735 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
736 irq - IRQ # for ES-1688 chip (5,7,9,10)
737 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
738 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
739 dma8 - DMA # for ES-1688 chip (0,1,3)
740 dma1 - DMA # for GF1 chip (1,3,5,6,7)
741 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
742 voices - GF1 voices limit (14-32)
743 pcm_voices - reserved PCM voices
745 This module supports multiple cards and autoprobe (without MPU-401 port).
750 Module for Gravis UltraSound MAX sound card.
752 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
753 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
754 dma1 - DMA # for GF1 chip (1,3,5,6,7)
755 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
756 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
757 voices - GF1 voices limit (14-32)
758 pcm_voices - reserved PCM voices
760 This module supports multiple cards and autoprobe.
765 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
767 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
768 RV630, RV635, RV670, RV770,
772 [Multiple options for each card instance]
773 model - force the model name
774 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
775 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
776 When the bit 8 (0x100) is set, the lower 8 bits are used
777 as the "fixed" codec slots; i.e. the driver probes the
778 slots regardless what hardware reports back
779 probe_only - Only probing and no codec initialization (default=off);
780 Useful to check the initial codec status for debugging
781 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
782 Passing -1 will make the driver to choose the appropriate
783 value based on the controller chip.
785 [Single (global) options]
786 single_cmd - Use single immediate commands to communicate with
787 codecs (for debugging only)
788 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
789 power_save - Automatic power-saving timeout (in second, 0 =
791 power_save_controller - Reset HD-audio controller in power-saving mode
794 This module supports multiple cards and autoprobe.
796 See Documentation/sound/alsa/HD-Audio.txt for more details about
799 Each codec may have a model table for different configurations.
800 If your machine isn't listed there, the default (usually minimal)
801 configuration is set up. You can pass "model=<name>" option to
802 specify a certain model in such a case. There are different
803 models depending on the codec chip. The list of available models
804 is found in HD-Audio-Models.txt
806 The model name "genric" is treated as a special case. When this
807 model is given, the driver uses the generic codec parser without
808 "codec-patch". It's sometimes good for testing and debugging.
810 If the default configuration doesn't work and one of the above
811 matches with your device, report it together with alsa-info.sh
812 output (with --no-upload option) to kernel bugzilla or alsa-devel
813 ML (see the section "Links and Addresses").
815 power_save and power_save_controller options are for power-saving
816 mode. See powersave.txt for details.
818 Note 2: If you get click noises on output, try the module option
819 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
820 register value without FIFO size correction as the current
821 DMA pointer. position_fix=2 will make the driver to use
822 the position buffer instead of reading SD_LPIB register.
823 (Usually SD_LPIB register is more accurate than the
826 NB: If you get many "azx_get_response timeout" messages at
827 loading, it's likely a problem of interrupts (e.g. ACPI irq
828 routing). Try to boot with options like "pci=noacpi". Also, you
829 can try "single_cmd=1" module option. This will switch the
830 communication method between HDA controller and codecs to the
831 single immediate commands instead of CORB/RIRB. Basically, the
832 single command mode is provided only for BIOS, and you won't get
833 unsolicited events, too. But, at least, this works independently
834 from the irq. Remember this is a last resort, and should be
835 avoided as much as possible...
837 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
838 On some hardwares, you may need to add a proper probe_mask option
839 to avoid the "azx_get_response timeout" problem above, instead.
840 This occurs when the access to non-existing or non-working codec slot
841 (likely a modem one) causes a stall of the communication via HD-audio
842 bus. You can see which codec slots are probed by enabling
843 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
844 proc files. Then limit the slots to probe by probe_mask option.
845 For example, probe_mask=1 means to probe only the first slot, and
846 probe_mask=4 means only the third slot.
848 The power-management is supported.
853 Module for RME Hammerfall DSP audio interface(s)
855 This module supports multiple cards.
857 Note: The firmware data can be automatically loaded via hotplug
858 when CONFIG_FW_LOADER is set. Otherwise, you need to load
859 the firmware via hdsploader utility included in alsa-tools
861 The firmware data is found in alsa-firmware package.
863 Note: snd-page-alloc module does the job which snd-hammerfall-mem
864 module did formerly. It will allocate the buffers in advance
865 when any HDSP cards are found. To make the buffer
866 allocation sure, load snd-page-alloc module in the early
867 stage of boot sequence. See "Early Buffer Allocation"
873 Module for RME HDSP MADI board.
875 precise_ptr - Enable precise pointer, or disable.
876 line_outs_monitor - Send playback streams to analog outs by default.
877 enable_monitor - Enable Analog Out on Channel 63/64 by default.
879 See hdspm.txt for details.
884 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
886 This module supports autoprobe and multiple cards.
891 Module for Envy24 (ICE1712) based PCI sound cards.
892 * MidiMan M Audio Delta 1010
893 * MidiMan M Audio Delta 1010LT
894 * MidiMan M Audio Delta DiO 2496
895 * MidiMan M Audio Delta 66
896 * MidiMan M Audio Delta 44
897 * MidiMan M Audio Delta 410
898 * MidiMan M Audio Audiophile 2496
904 * Hoontech SoundTrack DSP 24
905 * Hoontech SoundTrack DSP 24 Value
906 * Hoontech SoundTrack DSP 24 Media 7.1
907 * Event Electronics, EZ8
909 * Lionstracs, Mediastaton
912 model - Use the given board model, one of the following:
913 delta1010, dio2496, delta66, delta44, audiophile, delta410,
914 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
915 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
916 phase88, mediastation
917 omni - Omni I/O support for MidiMan M-Audio Delta44/66
918 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
919 in msec resolution, default value is 500 (0.5 sec)
921 This module supports multiple cards and autoprobe. Note: The consumer part
922 is not used with all Envy24 based cards (for example in the MidiMan Delta
925 Note: The supported board is detected by reading EEPROM or PCI
926 SSID (if EEPROM isn't available). You can override the
927 model by passing "model" module option in case that the
928 driver isn't configured properly or you want to try another
934 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
935 * MidiMan M Audio Revolution 5.1
936 * MidiMan M Audio Revolution 7.1
937 * MidiMan M Audio Audiophile 192
939 * TerraTec Aureon 5.1 Sky
940 * TerraTec Aureon 7.1 Space
941 * TerraTec Aureon 7.1 Universe
944 * AudioTrak Prodigy 7.1
945 * AudioTrak Prodigy 7.1 LT
946 * AudioTrak Prodigy 7.1 XT
947 * AudioTrak Prodigy 7.1 HIFI
948 * AudioTrak Prodigy 7.1 HD2
949 * AudioTrak Prodigy 192
951 * Albatron K8X800 Pro II
961 * Hercules Fortissimo IV
962 * EGO-SYS WaveTerminal 192M
964 model - Use the given board model, one of the following:
965 revo51, revo71, amp2000, prodigy71, prodigy71lt,
966 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
967 juli, aureon51, aureon71, universe, ap192, k8x800,
968 phase22, phase28, ms300, av710, se200pci, se90pci,
969 fortissimo4, sn25p, WT192M, maya44
971 This module supports multiple cards and autoprobe.
973 Note: The supported board is detected by reading EEPROM or PCI
974 SSID (if EEPROM isn't available). You can override the
975 model by passing "model" module option in case that the
976 driver isn't configured properly or you want to try another
982 Module for Echoaudio Indigo
984 This module supports multiple cards.
985 The driver requires the firmware loader support on kernel.
990 Module for Echoaudio Indigo DJ
992 This module supports multiple cards.
993 The driver requires the firmware loader support on kernel.
998 Module for Echoaudio Indigo IO
1000 This module supports multiple cards.
1001 The driver requires the firmware loader support on kernel.
1006 Module for AC'97 motherboards from Intel and compatibles.
1007 * Intel i810/810E, i815, i820, i830, i84x, MX440
1008 ICH5, ICH6, ICH7, 6300ESB, ESB2
1009 * SiS 7012 (SiS 735)
1010 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1012 * AMD AMD768, AMD8111
1015 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1016 ac97_quirk - AC'97 workaround for strange hardware
1017 See "AC97 Quirk Option" section below.
1018 buggy_irq - Enable workaround for buggy interrupts on some
1019 motherboards (default yes on nForce chips,
1021 buggy_semaphore - Enable workaround for hardwares with buggy
1022 semaphores (e.g. on some ASUS laptops)
1024 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1025 from the controller chip
1026 (0 = off, 1 = on, -1 = default)
1028 This module supports one chip and autoprobe.
1030 Note: the latest driver supports auto-detection of chip clock.
1031 if you still encounter too fast playback, specify the clock
1032 explicitly via the module option "ac97_clock=41194".
1034 Joystick/MIDI ports are not supported by this driver. If your
1035 motherboard has these devices, use the ns558 or snd-mpu401
1036 modules, respectively.
1038 The power-management is supported.
1040 Module snd-intel8x0m
1041 --------------------
1043 Module for Intel ICH (i8x0) chipset MC97 modems.
1044 * Intel i810/810E, i815, i820, i830, i84x, MX440
1046 * SiS 7013 (SiS 735)
1047 * NVidia NForce, NForce2, NForce2s, NForce3
1051 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1053 This module supports one card and autoprobe.
1055 Note: The default index value of this module is -2, i.e. the first
1058 The power-management is supported.
1060 Module snd-interwave
1061 --------------------
1063 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1064 and other sound cards based on AMD InterWave (tm) chip.
1066 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1067 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1068 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1069 effect - 1 = InterWave effects enable (default 0);
1071 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1073 with isapnp=0, the following options are available:
1075 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1076 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1077 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1078 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1080 This module supports multiple cards, autoprobe and ISA PnP.
1082 Module snd-interwave-stb
1083 ------------------------
1085 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1086 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1087 circuit for extended control of bass, treble and master volume.
1089 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1090 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1091 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1092 effect - 1 = InterWave effects enable (default 0);
1094 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1096 with isapnp=0, the following options are available:
1098 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1099 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1100 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1101 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1102 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1104 This module supports multiple cards, autoprobe and ISA PnP.
1109 Module for Korg 1212 IO PCI card
1111 This module supports multiple cards.
1116 Module for Echoaudio Layla20
1118 This module supports multiple cards.
1119 The driver requires the firmware loader support on kernel.
1124 Module for Echoaudio Layla24
1126 This module supports multiple cards.
1127 The driver requires the firmware loader support on kernel.
1132 Module for Digigram LX6464ES boards
1134 This module supports multiple cards.
1139 Module for Allegro/Maestro3 chips
1141 external_amp - enable external amp (enabled by default)
1142 amp_gpio - GPIO pin number for external amp (0-15) or
1143 -1 for default pin (8 for allegro, 1 for
1146 This module supports autoprobe and multiple chips.
1148 Note: the binding of amplifier is dependent on hardware.
1149 If there is no sound even though all channels are unmuted, try to
1150 specify other gpio connection via amp_gpio option.
1151 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1154 The power-management is supported.
1159 Module for Echoaudio Mia
1161 This module supports multiple cards.
1162 The driver requires the firmware loader support on kernel.
1167 Module for Miro soundcards: miroSOUND PCM 1 pro,
1169 miroSOUND PCM 20 Radio.
1171 port - Port # (0x530,0x604,0xe80,0xf40)
1172 irq - IRQ # (5,7,9,10,11)
1173 dma1 - 1st dma # (0,1,3)
1174 dma2 - 2nd dma # (0,1)
1175 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1176 mpu_irq - MPU-401 irq # (5,7,9,10)
1177 fm_port - FM Port # (0x388)
1178 wss - enable WSS mode
1179 ide - enable onboard ide support
1184 Module for Digigram miXart8 sound cards.
1186 This module supports multiple cards.
1187 Note: One miXart8 board will be represented as 4 alsa cards.
1188 See MIXART.txt for details.
1190 When the driver is compiled as a module and the hotplug firmware
1191 is supported, the firmware data is loaded via hotplug automatically.
1192 Install the necessary firmware files in alsa-firmware package.
1193 When no hotplug fw loader is available, you need to load the
1194 firmware via mixartloader utility in alsa-tools package.
1199 Module for Echoaudio Mona
1201 This module supports multiple cards.
1202 The driver requires the firmware loader support on kernel.
1207 Module for MPU-401 UART devices.
1209 port - port number or -1 (disable)
1210 irq - IRQ number or -1 (disable)
1211 pnp - PnP detection - 0 = disable, 1 = enable (default)
1213 This module supports multiple devices and PnP.
1215 Module snd-msnd-classic
1216 -----------------------
1218 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1221 io - Port # for msnd-classic card
1222 irq - IRQ # for msnd-classic card
1223 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1225 write_ndelay - enable write ndelay (default = 1)
1226 calibrate_signal - calibrate signal (default = 0)
1227 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1228 digital - Digital daughterboard present (default = 0)
1229 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1230 reset - Reset all devices
1231 mpu_io - MPU401 I/O port
1232 mpu_irq - MPU401 irq#
1233 ide_io0 - IDE port #0
1234 ide_io1 - IDE port #1
1236 joystick_io - Joystick I/O port
1238 The driver requires firmware files "turtlebeach/msndinit.bin" and
1239 "turtlebeach/msndperm.bin" in the proper firmware directory.
1241 See Documentation/sound/oss/MultiSound for important information
1242 about this driver. Note that it has been discontinued, but the
1243 Voyetra Turtle Beach knowledge base entry for it is still available
1245 http://www.turtlebeach.com/site/kb_ftp/790.asp
1247 Module snd-msnd-pinnacle
1248 ------------------------
1250 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1252 io - Port # for pinnacle/fiji card
1253 irq - IRQ # for pinnalce/fiji card
1254 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1256 write_ndelay - enable write ndelay (default = 1)
1257 calibrate_signal - calibrate signal (default = 0)
1258 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1260 The driver requires firmware files "turtlebeach/pndspini.bin" and
1261 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1266 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1269 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1270 irq - IRQ # for MTPAV (7,5, default=7)
1271 hwports - number of supported hardware ports, default=8.
1273 Module supports only 1 card. This module has no enable option.
1278 Module for Ego Systems (ESI) Miditerminal 4140
1280 This module supports multiple devices.
1281 Requires parport (CONFIG_PARPORT).
1286 Module for NeoMagic NM256AV/ZX chips
1288 playback_bufsize - max playback frame size in kB (4-128kB)
1289 capture_bufsize - max capture frame size in kB (4-128kB)
1290 force_ac97 - 0 or 1 (disabled by default)
1291 buffer_top - specify buffer top address
1292 use_cache - 0 or 1 (disabled by default)
1293 vaio_hack - alias buffer_top=0x25a800
1294 reset_workaround - enable AC97 RESET workaround for some laptops
1295 reset_workaround2 - enable extended AC97 RESET workaround for some
1298 This module supports one chip and autoprobe.
1300 The power-management is supported.
1302 Note: on some notebooks the buffer address cannot be detected
1303 automatically, or causes hang-up during initialization.
1304 In such a case, specify the buffer top address explicitly via
1305 the buffer_top option.
1307 Sony F250: buffer_top=0x25a800
1308 Sony F270: buffer_top=0x272800
1309 The driver supports only ac97 codec. It's possible to force
1310 to initialize/use ac97 although it's not detected. In such a
1311 case, use force_ac97=1 option - but *NO* guarantee whether it
1314 Note: The NM256 chip can be linked internally with non-AC97
1315 codecs. This driver supports only the AC97 codec, and won't work
1316 with machines with other (most likely CS423x or OPL3SAx) chips,
1317 even though the device is detected in lspci. In such a case, try
1318 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1319 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1320 and proper hardware parameters in the case without ISA PnP.
1322 Note: some laptops need a workaround for AC97 RESET. For the
1323 known hardware like Dell Latitude LS and Sony PCG-F305, this
1324 workaround is enabled automatically. For other laptops with a
1325 hard freeze, you can try reset_workaround=1 option.
1327 Note: Dell Latitude CSx laptops have another problem regarding
1328 AC97 RESET. On these laptops, reset_workaround2 option is
1329 turned on as default. This option is worth to try if the
1330 previous reset_workaround option doesn't help.
1332 Note: This driver is really crappy. It's a porting from the
1333 OSS driver, which is a result of black-magic reverse engineering.
1334 The detection of codec will fail if the driver is loaded *after*
1335 X-server as described above. You might be able to force to load
1336 the module, but it may result in hang-up. Hence, make sure that
1337 you load this module *before* X if you encounter this kind of
1343 Module for Yamaha OPL3-SA2/SA3 sound cards.
1345 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1347 with isapnp=0, the following options are available:
1349 port - control port # for OPL3-SA chip (0x370)
1350 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1351 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1352 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1353 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1354 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1355 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1356 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1358 This module supports multiple cards and ISA PnP. It does not support
1359 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1361 The power-management is supported.
1363 Module snd-opti92x-ad1848
1364 -------------------------
1366 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1367 Module works with OAK Mozart cards as well.
1369 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1371 with isapnp=0, the following options are available:
1373 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1374 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1375 fm_port - port # for OPL3 device (0x388)
1376 irq - IRQ # for WSS chip (5,7,9,10,11)
1377 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1378 dma1 - first DMA # for WSS chip (0,1,3)
1380 This module supports only one card, autoprobe and PnP.
1382 Module snd-opti92x-cs4231
1383 -------------------------
1385 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1387 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1389 with isapnp=0, the following options are available:
1391 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1392 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1393 fm_port - port # for OPL3 device (0x388)
1394 irq - IRQ # for WSS chip (5,7,9,10,11)
1395 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1396 dma1 - first DMA # for WSS chip (0,1,3)
1397 dma2 - second DMA # for WSS chip (0,1,3)
1399 This module supports only one card, autoprobe and PnP.
1404 Module for sound cards based on OPTi 82c93x chips.
1406 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1408 with isapnp=0, the following options are available:
1410 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1411 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1412 fm_port - port # for OPL3 device (0x388)
1413 irq - IRQ # for WSS chip (5,7,9,10,11)
1414 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1415 dma1 - first DMA # for WSS chip (0,1,3)
1416 dma2 - second DMA # for WSS chip (0,1,3)
1418 This module supports only one card, autoprobe and PnP.
1423 Module for sound cards based on the C-Media CMI8788 chip:
1425 * AuzenTech X-Meridian
1427 * Club3D Theatron DTS
1428 * HT-Omega Claro (plus)
1429 * HT-Omega Claro halo (XT)
1430 * Razer Barracuda AC-1
1433 This module supports autoprobe and multiple cards.
1438 Module for internal PC-Speaker.
1440 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1442 This module supports system beeps, some kind of PCM playback and
1443 even a few mixer controls.
1448 Module for Digigram PCXHR boards
1450 This module supports multiple cards.
1452 Module snd-portman2x4
1453 ---------------------
1455 Module for Midiman Portman 2x4 parallel port MIDI interface
1457 This module supports multiple cards.
1459 Module snd-powermac (on ppc only)
1460 ---------------------------------
1462 Module for PowerMac, iMac and iBook on-board soundchips
1464 enable_beep - enable beep using PCM (enabled as default)
1466 Module supports autoprobe a chip.
1468 Note: the driver may have problems regarding endianess.
1470 The power-management is supported.
1472 Module snd-pxa2xx-ac97 (on arm only)
1473 ------------------------------------
1475 Module for AC97 driver for the Intel PXA2xx chip
1477 For ARM architecture only.
1479 The power-management is supported.
1484 Module for Conexant Riptide chip
1486 joystick_port - Joystick port # (default: 0x200)
1487 mpu_port - MPU401 port # (default: 0x330)
1488 opl3_port - OPL3 port # (default: 0x388)
1490 This module supports multiple cards.
1491 The driver requires the firmware loader support on kernel.
1492 You need to install the firmware file "riptide.hex" to the standard
1493 firmware path (e.g. /lib/firmware).
1498 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1499 Prodif96 and Prodif Gold) sound cards.
1501 This module supports multiple cards.
1506 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1508 This module supports multiple cards.
1513 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1515 precise_ptr - Enable precise pointer (doesn't work reliably).
1518 This module supports multiple cards.
1520 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1521 module did formerly. It will allocate the buffers in advance
1522 when any RME9652 cards are found. To make the buffer
1523 allocation sure, load snd-page-alloc module in the early
1524 stage of boot sequence. See "Early Buffer Allocation"
1527 Module snd-sa11xx-uda1341 (on arm only)
1528 ---------------------------------------
1530 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1532 Module supports only one card.
1533 Module has no enable and index options.
1535 The power-management is supported.
1540 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1544 port - port # for SB DSP chip (0x220,0x240,0x260)
1545 irq - IRQ # for SB DSP chip (5,7,9,10)
1546 dma8 - DMA # for SB DSP chip (1,3)
1548 This module supports multiple cards and autoprobe.
1550 The power-management is supported.
1552 Module snd-sb16 and snd-sbawe
1553 -----------------------------
1555 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1556 SoundBlaster AWE 32 (PnP),
1557 SoundBlaster AWE 64 PnP
1559 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1560 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1561 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1563 with isapnp=0, the following options are available:
1565 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1566 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1567 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1568 (snd-sbawe module only)
1569 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1570 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1571 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1573 This module supports multiple cards, autoprobe and ISA PnP.
1575 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1576 disable 16bit DMA with dma16 = -1 module parameter.
1577 Also, all Sound Blaster 16 type cards can operate in 16-bit
1578 half duplex mode through 8-bit DMA channel by disabling their
1581 The power-management is supported.
1586 Module for Gallant SC-6000 soundcard and later models: SC-6600
1589 port - Port # (0x220 or 0x240)
1590 mss_port - MSS Port # (0x530 or 0xe80)
1591 irq - IRQ # (5,7,9,10,11)
1592 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1594 joystick - Enable gameport - 0 = disable (default), 1 = enable
1596 This module supports multiple cards.
1598 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1603 Module for Aztech Sound Galaxy sound card.
1605 sbport - Port # for SB16 interface (0x220,0x240)
1606 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1607 irq - IRQ # (7,9,10,11)
1610 This module supports multiple cards.
1612 The power-management is supported.
1617 Module for ENSONIQ SoundScape PnP cards.
1619 port - Port # (PnP setup)
1620 wss_port - WSS Port # (PnP setup)
1621 irq - IRQ # (PnP setup)
1622 mpu_irq - MPU-401 IRQ # (PnP setup)
1623 dma - DMA # (PnP setup)
1624 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1626 This module supports multiple cards. ISA PnP must be enabled.
1627 You need sscape_ctl tool in alsa-tools package for loading
1630 Module snd-sun-amd7930 (on sparc only)
1631 --------------------------------------
1633 Module for AMD7930 sound chips found on Sparcs.
1635 This module supports multiple cards.
1637 Module snd-sun-cs4231 (on sparc only)
1638 -------------------------------------
1640 Module for CS4231 sound chips found on Sparcs.
1642 This module supports multiple cards.
1644 Module snd-sun-dbri (on sparc only)
1645 -----------------------------------
1647 Module for DBRI sound chips found on Sparcs.
1649 This module supports multiple cards.
1651 Module snd-wavefront
1652 --------------------
1654 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1656 use_cs4232_midi - Use CS4232 MPU-401 interface
1657 (inaccessibly located inside your computer)
1658 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1660 with isapnp=0, the following options are available:
1662 cs4232_pcm_port - Port # for CS4232 PCM interface.
1663 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1664 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1665 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1666 ics2115_port - Port # for ICS2115
1667 ics2115_irq - IRQ # for ICS2115
1668 fm_port - FM OPL-3 Port #
1669 dma1 - DMA1 # for CS4232 PCM interface.
1670 dma2 - DMA2 # for CS4232 PCM interface.
1672 The below are options for wavefront_synth features:
1673 wf_raw - Assume that we need to boot the OS (default:no)
1674 If yes, then during driver loading, the state of the board is
1675 ignored, and we reset the board and load the firmware anyway.
1676 fx_raw - Assume that the FX process needs help (default:yes)
1677 If false, we'll leave the FX processor in whatever state it is
1678 when the driver is loaded. The default is to download the
1679 microprogram and associated coefficients to set it up for
1680 "default" operation, whatever that means.
1681 debug_default - Debug parameters for card initialization
1682 wait_usecs - How long to wait without sleeping, usecs
1684 This magic number seems to give pretty optimal throughput
1685 based on my limited experimentation.
1686 If you want to play around with it and find a better value, be
1687 my guest. Remember, the idea is to get a number that causes us
1688 to just busy wait for as many WaveFront commands as possible,
1689 without coming up with a number so large that we hog the whole
1691 Specifically, with this number, out of about 134,000 status
1692 waits, only about 250 result in a sleep.
1693 sleep_interval - How long to sleep when waiting for reply
1695 sleep_tries - How many times to try sleeping during a wait
1697 ospath - Pathname to processed ICS2115 OS firmware
1698 (default:wavefront.os)
1699 The path name of the ISC2115 OS firmware. In the recent
1700 version, it's handled via firmware loader framework, so it
1701 must be installed in the proper path, typically,
1703 reset_time - How long to wait for a reset to take effect
1705 ramcheck_time - How many seconds to wait for the RAM test
1707 osrun_time - How many seconds to wait for the ICS2115 OS
1710 This module supports multiple cards and ISA PnP.
1712 Note: the firmware file "wavefront.os" was located in the earlier
1713 version in /etc. Now it's loaded via firmware loader, and
1714 must be in the proper firmware path, such as /lib/firmware.
1715 Copy (or symlink) the file appropriately if you get an error
1716 regarding firmware downloading after upgrading the kernel.
1718 Module snd-sonicvibes
1719 ---------------------
1721 Module for S3 SonicVibes PCI sound cards.
1722 * PINE Schubert 32 PCI
1724 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1725 - SoundCard must have onboard SRAM for this.
1726 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1728 This module supports multiple cards and autoprobe.
1730 Module snd-serial-u16550
1731 ------------------------
1733 Module for UART16550A serial MIDI ports.
1735 port - port # for UART16550A chip
1736 irq - IRQ # for UART16550A chip, -1 = poll mode
1737 speed - speed in bauds (9600,19200,38400,57600,115200)
1739 base - base for divisor in bauds (57600,115200,230400,460800)
1741 outs - number of MIDI ports in a serial port (1-4)
1743 adaptor - Type of adaptor.
1744 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1745 3 = MS-124W M/B, 4 = Generic
1747 This module supports multiple cards. This module does not support autoprobe
1748 thus the main port must be specified!!! Other options are optional.
1753 Module for Trident 4DWave DX/NX sound cards.
1754 * Best Union Miss Melody 4DWave PCI
1756 * Warpspeed ONSpeed 4DWave PCI
1759 * CHIC True Sound 4Dwave
1760 * Shark Predator4D-PCI
1761 * Jaton SonicWave 4D
1762 * SiS SI7018 PCI Audio
1763 * Hoontech SoundTrack Digital 4DWave NX
1765 pcm_channels - max channels (voices) reserved for PCM
1766 wavetable_size - max wavetable size in kB (4-?kb)
1768 This module supports multiple cards and autoprobe.
1770 The power-management is supported.
1772 Module snd-usb-audio
1773 --------------------
1775 Module for USB audio and USB MIDI devices.
1777 vid - Vendor ID for the device (optional)
1778 pid - Product ID for the device (optional)
1779 nrpacks - Max. number of packets per URB (default: 8)
1780 async_unlink - Use async unlink mode (default: yes)
1781 device_setup - Device specific magic number (optional)
1782 - Influence depends on the device
1784 ignore_ctl_error - Ignore any USB-controller regarding mixer
1785 interface (default: no)
1787 This module supports multiple devices, autoprobe and hotplugging.
1789 NB: nrpacks parameter can be modified dynamically via sysfs.
1790 Don't put the value over 20. Changing via sysfs has no sanity
1792 NB: async_unlink=0 would cause Oops. It remains just for
1793 debugging purpose (if any).
1794 NB: ignore_ctl_error=1 may help when you get an error at accessing
1795 the mixer element such as URB error -22. This happens on some
1796 buggy USB device or the controller.
1798 Module snd-usb-caiaq
1799 --------------------
1801 Module for caiaq UB audio interfaces,
1802 * Native Instruments RigKontrol2
1803 * Native Instruments Kore Controller
1804 * Native Instruments Audio Kontrol 1
1805 * Native Instruments Audio 8 DJ
1807 This module supports multiple devices, autoprobe and hotplugging.
1809 Module snd-usb-usx2y
1810 --------------------
1812 Module for Tascam USB US-122, US-224 and US-428 devices.
1814 This module supports multiple devices, autoprobe and hotplugging.
1816 Note: you need to load the firmware via usx2yloader utility included
1817 in alsa-tools and alsa-firmware packages.
1822 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1823 8233A, 8233C, 8235, 8237 (south) bridge.
1825 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1827 joystick - Enable joystick (default off) [VIA686A/686B only]
1828 ac97_clock - AC'97 codec clock base (default 48000Hz)
1829 dxs_support - support DXS channels,
1830 0 = auto (default), 1 = enable, 2 = disable,
1831 3 = 48k only, 4 = no VRA, 5 = enable any sample
1832 rate and different sample rates on different
1834 [VIA8233/C, 8235, 8237 only]
1835 ac97_quirk - AC'97 workaround for strange hardware
1836 See "AC97 Quirk Option" section below.
1838 This module supports one chip and autoprobe.
1840 Note: on some SMP motherboards like MSI 694D the interrupts might
1841 not be generated properly. In such a case, please try to
1842 set the SMP (or MPS) version on BIOS to 1.1 instead of
1843 default value 1.4. Then the interrupt number will be
1844 assigned under 15. You might also upgrade your BIOS.
1846 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1847 channels as the first PCM. On these channels, up to 4
1848 streams can be played at the same time, and the controller
1849 can perform sample rate conversion with separate rates for
1851 As default (dxs_support = 0), 48k fixed rate is chosen
1852 except for the known devices since the output is often
1853 noisy except for 48k on some mother boards due to the
1855 Please try once dxs_support=5 and if it works on other
1856 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1857 know the PCI subsystem vendor/device id's (output of
1859 If dxs_support=5 does not work, try dxs_support=4; if it
1860 doesn't work too, try dxs_support=1. (dxs_support=1 is
1861 usually for old motherboards. The correct implemented
1862 board should work with 4 or 5.) If it still doesn't
1863 work and the default setting is ok, dxs_support=3 is the
1864 right choice. If the default setting doesn't work at all,
1865 try dxs_support=2 to disable the DXS channels.
1866 In any cases, please let us know the result and the
1867 subsystem vendor/device ids. See "Links and Addresses"
1870 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1871 additionally. The mpu_port option is for VIA686 chips only.
1873 The power-management is supported.
1875 Module snd-via82xx-modem
1876 ------------------------
1878 Module for VIA82xx AC97 modem
1880 ac97_clock - AC'97 codec clock base (default 48000Hz)
1882 This module supports one card and autoprobe.
1884 Note: The default index value of this module is -2, i.e. the first
1887 The power-management is supported.
1892 Module for virtual rawmidi devices.
1893 This module creates virtual rawmidi devices which communicate
1894 to the corresponding ALSA sequencer ports.
1896 midi_devs - MIDI devices # (1-4, default=4)
1898 This module supports multiple cards.
1903 Module for sound cards based on the Asus AV100/AV200 chips,
1904 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), Essence ST
1905 (Deluxe) and Essence STX.
1907 This module supports autoprobe and multiple cards.
1912 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1914 mic - Enable Microphone on V222 Mic (NYI)
1915 ibl - Capture IBL size. (default = 0, minimum size)
1917 This module supports multiple cards.
1919 When the driver is compiled as a module and the hotplug firmware
1920 is supported, the firmware data is loaded via hotplug automatically.
1921 Install the necessary firmware files in alsa-firmware package.
1922 When no hotplug fw loader is available, you need to load the
1923 firmware via vxloader utility in alsa-tools package. To invoke
1924 vxloader automatically, add the following to /etc/modprobe.conf
1926 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1928 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1929 /etc/modules.conf, instead.)
1930 IBL size defines the interrupts period for PCM. The smaller size
1931 gives smaller latency but leads to more CPU consumption, too.
1932 The size is usually aligned to 126. As default (=0), the smallest
1933 size is chosen. The possible IBL values can be found in
1934 /proc/asound/cardX/vx-status proc file.
1936 The power-management is supported.
1941 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1943 ibl - Capture IBL size. (default = 0, minimum size)
1945 This module supports multiple cards. The module is compiled only when
1946 PCMCIA is supported on kernel.
1948 With the older 2.6.x kernel, to activate the driver via the card
1949 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1950 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1951 longer require a config file.
1953 When the driver is compiled as a module and the hotplug firmware
1954 is supported, the firmware data is loaded via hotplug automatically.
1955 Install the necessary firmware files in alsa-firmware package.
1956 When no hotplug fw loader is available, you need to load the
1957 firmware via vxloader utility in alsa-tools package.
1959 About capture IBL, see the description of snd-vx222 module.
1961 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1964 The power-management is supported.
1969 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1971 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1972 1 (auto-detect for YMF744/754 only)
1973 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1974 1 (auto-detect for YMF744/754 only)
1975 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1977 rear_switch - enable shared rear/line-in switch (bool)
1979 This module supports autoprobe and multiple chips.
1981 The power-management is supported.
1983 Module snd-pdaudiocf
1984 --------------------
1986 Module for Sound Core PDAudioCF sound card.
1988 The power-management is supported.
1994 The ac97_quirk option is used to enable/override the workaround for
1995 specific devices on drivers for on-board AC'97 controllers like
1996 snd-intel8x0. Some hardware have swapped output pins between Master
1997 and Headphone, or Surround (thanks to confusion of AC'97
1998 specifications from version to version :-)
2000 The driver provides the auto-detection of known problematic devices,
2001 but some might be unknown or wrongly detected. In such a case, pass
2002 the proper value with this option.
2004 The following strings are accepted:
2005 - default Don't override the default setting
2006 - none Disable the quirk
2007 - hp_only Bind Master and Headphone controls as a single control
2008 - swap_hp Swap headphone and master controls
2009 - swap_surround Swap master and surround controls
2010 - ad_sharing For AD1985, turn on OMS bit and use headphone
2011 - alc_jack For ALC65x, turn on the jack sense mode
2012 - inv_eapd Inverted EAPD implementation
2013 - mute_led Bind EAPD bit for turning on/off mute LED
2015 For backward compatibility, the corresponding integer value -1, 0,
2016 ... are accepted, too.
2018 For example, if "Master" volume control has no effect on your device
2019 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2022 Configuring Non-ISAPNP Cards
2023 ============================
2025 When the kernel is configured with ISA-PnP support, the modules
2026 supporting the isapnp cards will have module options "isapnp".
2027 If this option is set, *only* the ISA-PnP devices will be probed.
2028 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2029 together with the proper i/o and irq configuration.
2031 When the kernel is configured without ISA-PnP support, isapnp option
2032 will be not built in.
2035 Module Autoloading Support
2036 ==========================
2038 The ALSA drivers can be loaded automatically on demand by defining
2039 module aliases. The string 'snd-card-%1' is requested for ALSA native
2040 devices where %i is sound card number from zero to seven.
2042 To auto-load an ALSA driver for OSS services, define the string
2043 'sound-slot-%i' where %i means the slot number for OSS, which
2044 corresponds to the card index of ALSA. Usually, define this
2045 as the same card module.
2047 An example configuration for a single emu10k1 card is like below:
2048 ----- /etc/modprobe.conf
2049 alias snd-card-0 snd-emu10k1
2050 alias sound-slot-0 snd-emu10k1
2051 ----- /etc/modprobe.conf
2053 The available number of auto-loaded sound cards depends on the module
2054 option "cards_limit" of snd module. As default it's set to 1.
2055 To enable the auto-loading of multiple cards, specify the number of
2056 sound cards in that option.
2058 When multiple cards are available, it'd better to specify the index
2059 number for each card via module option, too, so that the order of
2060 cards is kept consistent.
2062 An example configuration for two sound cards is like below:
2064 ----- /etc/modprobe.conf
2066 options snd cards_limit=2
2067 alias snd-card-0 snd-interwave
2068 alias snd-card-1 snd-ens1371
2069 options snd-interwave index=0
2070 options snd-ens1371 index=1
2072 alias sound-slot-0 snd-interwave
2073 alias sound-slot-1 snd-ens1371
2074 ----- /etc/modprobe.conf
2076 In this example, the interwave card is always loaded as the first card
2077 (index 0) and ens1371 as the second (index 1).
2079 Alternative (and new) way to fixate the slot assignment is to use
2080 "slots" option of snd module. In the case above, specify like the
2083 options snd slots=snd-interwave,snd-ens1371
2085 Then, the first slot (#0) is reserved for snd-interwave driver, and
2086 the second (#1) for snd-ens1371. You can omit index option in each
2087 driver if slots option is used (although you can still have them at
2088 the same time as long as they don't conflict).
2090 The slots option is especially useful for avoiding the possible
2091 hot-plugging and the resultant slot conflict. For example, in the
2092 case above again, the first two slots are already reserved. If any
2093 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2094 snd-ens1371, it will be assigned to the third or later slot.
2096 When a module name is given with '!', the slot will be given for any
2097 modules but that name. For example, "slots=!snd-pcsp" will reserve
2098 the first slot for any modules but snd-pcsp.
2101 ALSA PCM devices to OSS devices mapping
2102 =======================================
2104 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2105 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2106 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2107 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2108 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2109 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2110 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2111 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2112 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2114 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2115 sound card number and second means device number. The ALSA devices
2116 have either 'c' or 'p' suffix indicating the direction, capture and
2117 playback, respectively.
2119 Please note that the device mapping above may be varied via the module
2120 options of snd-pcm-oss module.
2123 Proc interfaces (/proc/asound)
2124 ==============================
2126 /proc/asound/card#/pcm#[cp]/oss
2127 -------------------------------
2128 String "erase" - erase all additional informations about OSS applications
2129 String "<app_name> <fragments> <fragment_size> [<options>]"
2131 <app_name> - name of application with (higher priority) or without path
2132 <fragments> - number of fragments or zero if auto
2133 <fragment_size> - size of fragment in bytes or zero if auto
2134 <options> - optional parameters
2135 - disable the application tries to open a pcm device for
2136 this channel but does not want to use it.
2137 (Cause a bug or mmap needs)
2138 It's good for Quake etc...
2139 - direct don't use plugins
2140 - block force block mode (rvplayer)
2141 - non-block force non-block mode
2142 - whole-frag write only whole fragments (optimization affecting
2144 - no-silence do not fill silence ahead to avoid clicks
2145 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2146 instead of filled blocks
2148 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2149 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2150 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2153 Early Buffer Allocation
2154 =======================
2156 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2157 sometimes it's too late to find such spaces when the driver module is
2158 actually loaded due to memory fragmentation. You can pre-allocate the
2159 PCM buffers by loading snd-page-alloc module and write commands to its
2160 proc file in prior, for example, in the early boot stage like
2161 /etc/init.d/*.local scripts.
2163 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2164 usage of page allocation. In writing, you can send the following
2165 commands to the snd-page-alloc driver:
2167 - add VENDOR DEVICE MASK SIZE BUFFERS
2169 VENDOR and DEVICE are PCI vendor and device IDs. They take
2170 integer numbers (0x prefix is needed for the hex).
2171 MASK is the PCI DMA mask. Pass 0 if not restricted.
2172 SIZE is the size of each buffer to allocate. You can pass
2173 k and m suffix for KB and MB. The max number is 16MB.
2174 BUFFERS is the number of buffers to allocate. It must be greater
2175 than 0. The max number is 4.
2179 This will erase the all pre-allocated buffers which are not in
2186 ALSA project homepage
2187 http://www.alsa-project.org
2190 http://bugzilla.kernel.org/
2193 mailto:alsa-devel@alsa-project.org
2196 http://www.alsa-project.org/alsa-info.sh
git.openpandora.org / pandora-kernel.git / blob