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)
521 fake_buffer - Fake buffer allocations (default = 1)
523 When multiple PCM devices are created, snd-dummy gives different
524 behavior to each PCM device:
525 0 = interleaved with mmap support
526 1 = non-interleaved with mmap support
527 2 = interleaved without mmap
528 3 = non-interleaved without mmap
530 As default, snd-dummy drivers doesn't allocate the real buffers
531 but either ignores read/write or mmap a single dummy page to all
532 buffer pages, in order to save the resouces. If your apps need
533 the read/ written buffer data to be consistent, pass fake_buffer=0
536 The power-management is supported.
541 Module for Echoaudio 3G cards (Gina3G/Layla3G)
543 This module supports multiple cards.
544 The driver requires the firmware loader support on kernel.
549 Module for EMU10K1/EMU10k2 based PCI sound cards.
550 * Sound Blaster Live!
551 * Sound Blaster PCI 512
552 * Emu APS (partially supported)
553 * Sound Blaster Audigy
555 extin - bitmap of available external inputs for FX8010 (see bellow)
556 extout - bitmap of available external outputs for FX8010 (see bellow)
557 seq_ports - allocated sequencer ports (4 by default)
558 max_synth_voices - limit of voices used for wavetable (64 by default)
559 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
560 given in MB unit. Default value is 128.
561 enable_ir - enable IR
563 This module supports multiple cards and autoprobe.
565 Input & Output configurations [extin/extout]
566 * Creative Card wo/Digital out [0x0003/0x1f03]
567 * Creative Card w/Digital out [0x0003/0x1f0f]
568 * Creative Card w/Digital CD in [0x000f/0x1f0f]
569 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
570 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
571 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
572 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
573 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
574 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
575 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
576 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
577 * Creative Card all ins and outs [0x3fff/0x7fff]
579 The power-management is supported.
584 Module for Creative Emu10k1X (SB Live Dell OEM version)
586 This module supports multiple cards.
591 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
592 * SoundBlaster PCI 64
593 * SoundBlaster PCI 128
595 joystick - Enable joystick (default off)
597 This module supports multiple cards and autoprobe.
599 The power-management is supported.
604 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
605 * SoundBlaster PCI 64
606 * SoundBlaster PCI 128
607 * SoundBlaster Vibra PCI
609 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
610 0 = disable (default), 1 = auto-detect
612 This module supports multiple cards and autoprobe.
614 The power-management is supported.
619 Module for sound cards based on ESS ES968 chip (PnP only).
621 This module supports multiple cards, PnP and autoprobe.
623 The power-management is supported.
628 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
630 port - port # for ES-1688 chip (0x220,0x240,0x260)
631 fm_port - port # for OPL3 (option; share the same port as default)
632 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
633 irq - IRQ # for ES-1688 chip (5,7,9,10)
634 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
635 dma8 - DMA # for ES-1688 chip (0,1,3)
637 This module supports multiple cards and autoprobe (without MPU-401 port).
642 Module for ESS AudioDrive ES-18xx sound cards.
644 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
646 with isapnp=0, the following options are available:
648 port - port # for ES-18xx chip (0x220,0x240,0x260)
649 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
650 fm_port - port # for FM (optional, not used)
651 irq - IRQ # for ES-18xx chip (5,7,9,10)
652 dma1 - first DMA # for ES-18xx chip (0,1,3)
653 dma2 - first DMA # for ES-18xx chip (0,1,3)
655 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
656 port if native ISA PnP routines are not used).
657 When dma2 is equal with dma1, the driver works as half-duplex.
659 The power-management is supported.
664 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
666 This module supports multiple cards and autoprobe.
668 The power-management is supported.
673 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
675 total_bufsize - total buffer size in kB (1-4096kB)
676 pcm_substreams_p - playback channels (1-8, default=2)
677 pcm_substreams_c - capture channels (1-8, default=0)
678 clock - clock (0 = auto-detection)
679 use_pm - support the power-management (0 = off, 1 = on,
681 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
682 joystick - enable joystick (default off)
684 This module supports multiple cards and autoprobe.
686 The power-management is supported.
691 Module for ForteMedia FM801 based PCI sound cards.
693 tea575x_tuner - Enable TEA575x tuner
694 - 1 = MediaForte 256-PCS
695 - 2 = MediaForte 256-PCPR
696 - 3 = MediaForte 64-PCR
697 - High 16-bits are video (radio) device number + 1
698 - example: 0x10002 (MediaForte 256-PCPR, device 1)
700 This module supports multiple cards and autoprobe.
702 The power-management is supported.
707 Module for Echoaudio Gina20
709 This module supports multiple cards.
710 The driver requires the firmware loader support on kernel.
715 Module for Echoaudio Gina24
717 This module supports multiple cards.
718 The driver requires the firmware loader support on kernel.
720 Module snd-gusclassic
721 ---------------------
723 Module for Gravis UltraSound Classic sound card.
725 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
726 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
727 dma1 - DMA # for GF1 chip (1,3,5,6,7)
728 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
729 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
730 voices - GF1 voices limit (14-32)
731 pcm_voices - reserved PCM voices
733 This module supports multiple cards and autoprobe.
735 Module snd-gusextreme
736 ---------------------
738 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
740 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
741 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
742 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
743 irq - IRQ # for ES-1688 chip (5,7,9,10)
744 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
745 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
746 dma8 - DMA # for ES-1688 chip (0,1,3)
747 dma1 - DMA # for GF1 chip (1,3,5,6,7)
748 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
749 voices - GF1 voices limit (14-32)
750 pcm_voices - reserved PCM voices
752 This module supports multiple cards and autoprobe (without MPU-401 port).
757 Module for Gravis UltraSound MAX sound card.
759 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
760 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
761 dma1 - DMA # for GF1 chip (1,3,5,6,7)
762 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
763 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
764 voices - GF1 voices limit (14-32)
765 pcm_voices - reserved PCM voices
767 This module supports multiple cards and autoprobe.
772 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
774 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
775 RV630, RV635, RV670, RV770,
779 [Multiple options for each card instance]
780 model - force the model name
781 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
782 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
783 When the bit 8 (0x100) is set, the lower 8 bits are used
784 as the "fixed" codec slots; i.e. the driver probes the
785 slots regardless what hardware reports back
786 probe_only - Only probing and no codec initialization (default=off);
787 Useful to check the initial codec status for debugging
788 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
789 Passing -1 will make the driver to choose the appropriate
790 value based on the controller chip.
791 patch - Specifies the early "patch" files to modify the HD-audio
792 setup before initializing the codecs. This option is
793 available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
794 See HD-Audio.txt for details.
796 [Single (global) options]
797 single_cmd - Use single immediate commands to communicate with
798 codecs (for debugging only)
799 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
800 power_save - Automatic power-saving timeout (in second, 0 =
802 power_save_controller - Reset HD-audio controller in power-saving mode
805 This module supports multiple cards and autoprobe.
807 See Documentation/sound/alsa/HD-Audio.txt for more details about
810 Each codec may have a model table for different configurations.
811 If your machine isn't listed there, the default (usually minimal)
812 configuration is set up. You can pass "model=<name>" option to
813 specify a certain model in such a case. There are different
814 models depending on the codec chip. The list of available models
815 is found in HD-Audio-Models.txt
817 The model name "genric" is treated as a special case. When this
818 model is given, the driver uses the generic codec parser without
819 "codec-patch". It's sometimes good for testing and debugging.
821 If the default configuration doesn't work and one of the above
822 matches with your device, report it together with alsa-info.sh
823 output (with --no-upload option) to kernel bugzilla or alsa-devel
824 ML (see the section "Links and Addresses").
826 power_save and power_save_controller options are for power-saving
827 mode. See powersave.txt for details.
829 Note 2: If you get click noises on output, try the module option
830 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
831 register value without FIFO size correction as the current
832 DMA pointer. position_fix=2 will make the driver to use
833 the position buffer instead of reading SD_LPIB register.
834 (Usually SD_LPIB register is more accurate than the
837 NB: If you get many "azx_get_response timeout" messages at
838 loading, it's likely a problem of interrupts (e.g. ACPI irq
839 routing). Try to boot with options like "pci=noacpi". Also, you
840 can try "single_cmd=1" module option. This will switch the
841 communication method between HDA controller and codecs to the
842 single immediate commands instead of CORB/RIRB. Basically, the
843 single command mode is provided only for BIOS, and you won't get
844 unsolicited events, too. But, at least, this works independently
845 from the irq. Remember this is a last resort, and should be
846 avoided as much as possible...
848 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
849 On some hardwares, you may need to add a proper probe_mask option
850 to avoid the "azx_get_response timeout" problem above, instead.
851 This occurs when the access to non-existing or non-working codec slot
852 (likely a modem one) causes a stall of the communication via HD-audio
853 bus. You can see which codec slots are probed by enabling
854 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
855 proc files. Then limit the slots to probe by probe_mask option.
856 For example, probe_mask=1 means to probe only the first slot, and
857 probe_mask=4 means only the third slot.
859 The power-management is supported.
864 Module for RME Hammerfall DSP audio interface(s)
866 This module supports multiple cards.
868 Note: The firmware data can be automatically loaded via hotplug
869 when CONFIG_FW_LOADER is set. Otherwise, you need to load
870 the firmware via hdsploader utility included in alsa-tools
872 The firmware data is found in alsa-firmware package.
874 Note: snd-page-alloc module does the job which snd-hammerfall-mem
875 module did formerly. It will allocate the buffers in advance
876 when any HDSP cards are found. To make the buffer
877 allocation sure, load snd-page-alloc module in the early
878 stage of boot sequence. See "Early Buffer Allocation"
884 Module for RME HDSP MADI board.
886 precise_ptr - Enable precise pointer, or disable.
887 line_outs_monitor - Send playback streams to analog outs by default.
888 enable_monitor - Enable Analog Out on Channel 63/64 by default.
890 See hdspm.txt for details.
895 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
897 This module supports autoprobe and multiple cards.
902 Module for Envy24 (ICE1712) based PCI sound cards.
903 * MidiMan M Audio Delta 1010
904 * MidiMan M Audio Delta 1010LT
905 * MidiMan M Audio Delta DiO 2496
906 * MidiMan M Audio Delta 66
907 * MidiMan M Audio Delta 44
908 * MidiMan M Audio Delta 410
909 * MidiMan M Audio Audiophile 2496
915 * Hoontech SoundTrack DSP 24
916 * Hoontech SoundTrack DSP 24 Value
917 * Hoontech SoundTrack DSP 24 Media 7.1
918 * Event Electronics, EZ8
920 * Lionstracs, Mediastaton
923 model - Use the given board model, one of the following:
924 delta1010, dio2496, delta66, delta44, audiophile, delta410,
925 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
926 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
927 phase88, mediastation
928 omni - Omni I/O support for MidiMan M-Audio Delta44/66
929 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
930 in msec resolution, default value is 500 (0.5 sec)
932 This module supports multiple cards and autoprobe. Note: The consumer part
933 is not used with all Envy24 based cards (for example in the MidiMan Delta
936 Note: The supported board is detected by reading EEPROM or PCI
937 SSID (if EEPROM isn't available). You can override the
938 model by passing "model" module option in case that the
939 driver isn't configured properly or you want to try another
945 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
946 * MidiMan M Audio Revolution 5.1
947 * MidiMan M Audio Revolution 7.1
948 * MidiMan M Audio Audiophile 192
950 * TerraTec Aureon 5.1 Sky
951 * TerraTec Aureon 7.1 Space
952 * TerraTec Aureon 7.1 Universe
955 * AudioTrak Prodigy 7.1
956 * AudioTrak Prodigy 7.1 LT
957 * AudioTrak Prodigy 7.1 XT
958 * AudioTrak Prodigy 7.1 HIFI
959 * AudioTrak Prodigy 7.1 HD2
960 * AudioTrak Prodigy 192
962 * Albatron K8X800 Pro II
972 * Hercules Fortissimo IV
973 * EGO-SYS WaveTerminal 192M
975 model - Use the given board model, one of the following:
976 revo51, revo71, amp2000, prodigy71, prodigy71lt,
977 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
978 juli, aureon51, aureon71, universe, ap192, k8x800,
979 phase22, phase28, ms300, av710, se200pci, se90pci,
980 fortissimo4, sn25p, WT192M, maya44
982 This module supports multiple cards and autoprobe.
984 Note: The supported board is detected by reading EEPROM or PCI
985 SSID (if EEPROM isn't available). You can override the
986 model by passing "model" module option in case that the
987 driver isn't configured properly or you want to try another
993 Module for Echoaudio Indigo
995 This module supports multiple cards.
996 The driver requires the firmware loader support on kernel.
1001 Module for Echoaudio Indigo DJ
1003 This module supports multiple cards.
1004 The driver requires the firmware loader support on kernel.
1009 Module for Echoaudio Indigo IO
1011 This module supports multiple cards.
1012 The driver requires the firmware loader support on kernel.
1017 Module for AC'97 motherboards from Intel and compatibles.
1018 * Intel i810/810E, i815, i820, i830, i84x, MX440
1019 ICH5, ICH6, ICH7, 6300ESB, ESB2
1020 * SiS 7012 (SiS 735)
1021 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1023 * AMD AMD768, AMD8111
1026 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1027 ac97_quirk - AC'97 workaround for strange hardware
1028 See "AC97 Quirk Option" section below.
1029 buggy_irq - Enable workaround for buggy interrupts on some
1030 motherboards (default yes on nForce chips,
1032 buggy_semaphore - Enable workaround for hardwares with buggy
1033 semaphores (e.g. on some ASUS laptops)
1035 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1036 from the controller chip
1037 (0 = off, 1 = on, -1 = default)
1039 This module supports one chip and autoprobe.
1041 Note: the latest driver supports auto-detection of chip clock.
1042 if you still encounter too fast playback, specify the clock
1043 explicitly via the module option "ac97_clock=41194".
1045 Joystick/MIDI ports are not supported by this driver. If your
1046 motherboard has these devices, use the ns558 or snd-mpu401
1047 modules, respectively.
1049 The power-management is supported.
1051 Module snd-intel8x0m
1052 --------------------
1054 Module for Intel ICH (i8x0) chipset MC97 modems.
1055 * Intel i810/810E, i815, i820, i830, i84x, MX440
1057 * SiS 7013 (SiS 735)
1058 * NVidia NForce, NForce2, NForce2s, NForce3
1062 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1064 This module supports one card and autoprobe.
1066 Note: The default index value of this module is -2, i.e. the first
1069 The power-management is supported.
1071 Module snd-interwave
1072 --------------------
1074 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1075 and other sound cards based on AMD InterWave (tm) chip.
1077 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1078 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1079 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1080 effect - 1 = InterWave effects enable (default 0);
1082 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1084 with isapnp=0, the following options are available:
1086 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1087 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1088 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1089 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1091 This module supports multiple cards, autoprobe and ISA PnP.
1093 Module snd-interwave-stb
1094 ------------------------
1096 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1097 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1098 circuit for extended control of bass, treble and master volume.
1100 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1101 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1102 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1103 effect - 1 = InterWave effects enable (default 0);
1105 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1107 with isapnp=0, the following options are available:
1109 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1110 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1111 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1112 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1113 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1115 This module supports multiple cards, autoprobe and ISA PnP.
1120 Module for Korg 1212 IO PCI card
1122 This module supports multiple cards.
1127 Module for Echoaudio Layla20
1129 This module supports multiple cards.
1130 The driver requires the firmware loader support on kernel.
1135 Module for Echoaudio Layla24
1137 This module supports multiple cards.
1138 The driver requires the firmware loader support on kernel.
1143 Module for Digigram LX6464ES boards
1145 This module supports multiple cards.
1150 Module for Allegro/Maestro3 chips
1152 external_amp - enable external amp (enabled by default)
1153 amp_gpio - GPIO pin number for external amp (0-15) or
1154 -1 for default pin (8 for allegro, 1 for
1157 This module supports autoprobe and multiple chips.
1159 Note: the binding of amplifier is dependent on hardware.
1160 If there is no sound even though all channels are unmuted, try to
1161 specify other gpio connection via amp_gpio option.
1162 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1165 The power-management is supported.
1170 Module for Echoaudio Mia
1172 This module supports multiple cards.
1173 The driver requires the firmware loader support on kernel.
1178 Module for Miro soundcards: miroSOUND PCM 1 pro,
1180 miroSOUND PCM 20 Radio.
1182 port - Port # (0x530,0x604,0xe80,0xf40)
1183 irq - IRQ # (5,7,9,10,11)
1184 dma1 - 1st dma # (0,1,3)
1185 dma2 - 2nd dma # (0,1)
1186 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1187 mpu_irq - MPU-401 irq # (5,7,9,10)
1188 fm_port - FM Port # (0x388)
1189 wss - enable WSS mode
1190 ide - enable onboard ide support
1195 Module for Digigram miXart8 sound cards.
1197 This module supports multiple cards.
1198 Note: One miXart8 board will be represented as 4 alsa cards.
1199 See MIXART.txt for details.
1201 When the driver is compiled as a module and the hotplug firmware
1202 is supported, the firmware data is loaded via hotplug automatically.
1203 Install the necessary firmware files in alsa-firmware package.
1204 When no hotplug fw loader is available, you need to load the
1205 firmware via mixartloader utility in alsa-tools package.
1210 Module for Echoaudio Mona
1212 This module supports multiple cards.
1213 The driver requires the firmware loader support on kernel.
1218 Module for MPU-401 UART devices.
1220 port - port number or -1 (disable)
1221 irq - IRQ number or -1 (disable)
1222 pnp - PnP detection - 0 = disable, 1 = enable (default)
1224 This module supports multiple devices and PnP.
1226 Module snd-msnd-classic
1227 -----------------------
1229 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1232 io - Port # for msnd-classic card
1233 irq - IRQ # for msnd-classic card
1234 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1236 write_ndelay - enable write ndelay (default = 1)
1237 calibrate_signal - calibrate signal (default = 0)
1238 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1239 digital - Digital daughterboard present (default = 0)
1240 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1241 reset - Reset all devices
1242 mpu_io - MPU401 I/O port
1243 mpu_irq - MPU401 irq#
1244 ide_io0 - IDE port #0
1245 ide_io1 - IDE port #1
1247 joystick_io - Joystick I/O port
1249 The driver requires firmware files "turtlebeach/msndinit.bin" and
1250 "turtlebeach/msndperm.bin" in the proper firmware directory.
1252 See Documentation/sound/oss/MultiSound for important information
1253 about this driver. Note that it has been discontinued, but the
1254 Voyetra Turtle Beach knowledge base entry for it is still available
1256 http://www.turtlebeach.com/site/kb_ftp/790.asp
1258 Module snd-msnd-pinnacle
1259 ------------------------
1261 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1263 io - Port # for pinnacle/fiji card
1264 irq - IRQ # for pinnalce/fiji card
1265 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1267 write_ndelay - enable write ndelay (default = 1)
1268 calibrate_signal - calibrate signal (default = 0)
1269 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1271 The driver requires firmware files "turtlebeach/pndspini.bin" and
1272 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1277 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1280 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1281 irq - IRQ # for MTPAV (7,5, default=7)
1282 hwports - number of supported hardware ports, default=8.
1284 Module supports only 1 card. This module has no enable option.
1289 Module for Ego Systems (ESI) Miditerminal 4140
1291 This module supports multiple devices.
1292 Requires parport (CONFIG_PARPORT).
1297 Module for NeoMagic NM256AV/ZX chips
1299 playback_bufsize - max playback frame size in kB (4-128kB)
1300 capture_bufsize - max capture frame size in kB (4-128kB)
1301 force_ac97 - 0 or 1 (disabled by default)
1302 buffer_top - specify buffer top address
1303 use_cache - 0 or 1 (disabled by default)
1304 vaio_hack - alias buffer_top=0x25a800
1305 reset_workaround - enable AC97 RESET workaround for some laptops
1306 reset_workaround2 - enable extended AC97 RESET workaround for some
1309 This module supports one chip and autoprobe.
1311 The power-management is supported.
1313 Note: on some notebooks the buffer address cannot be detected
1314 automatically, or causes hang-up during initialization.
1315 In such a case, specify the buffer top address explicitly via
1316 the buffer_top option.
1318 Sony F250: buffer_top=0x25a800
1319 Sony F270: buffer_top=0x272800
1320 The driver supports only ac97 codec. It's possible to force
1321 to initialize/use ac97 although it's not detected. In such a
1322 case, use force_ac97=1 option - but *NO* guarantee whether it
1325 Note: The NM256 chip can be linked internally with non-AC97
1326 codecs. This driver supports only the AC97 codec, and won't work
1327 with machines with other (most likely CS423x or OPL3SAx) chips,
1328 even though the device is detected in lspci. In such a case, try
1329 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1330 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1331 and proper hardware parameters in the case without ISA PnP.
1333 Note: some laptops need a workaround for AC97 RESET. For the
1334 known hardware like Dell Latitude LS and Sony PCG-F305, this
1335 workaround is enabled automatically. For other laptops with a
1336 hard freeze, you can try reset_workaround=1 option.
1338 Note: Dell Latitude CSx laptops have another problem regarding
1339 AC97 RESET. On these laptops, reset_workaround2 option is
1340 turned on as default. This option is worth to try if the
1341 previous reset_workaround option doesn't help.
1343 Note: This driver is really crappy. It's a porting from the
1344 OSS driver, which is a result of black-magic reverse engineering.
1345 The detection of codec will fail if the driver is loaded *after*
1346 X-server as described above. You might be able to force to load
1347 the module, but it may result in hang-up. Hence, make sure that
1348 you load this module *before* X if you encounter this kind of
1354 Module for Yamaha OPL3-SA2/SA3 sound cards.
1356 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1358 with isapnp=0, the following options are available:
1360 port - control port # for OPL3-SA chip (0x370)
1361 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1362 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1363 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1364 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1365 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1366 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1367 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1369 This module supports multiple cards and ISA PnP. It does not support
1370 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1372 The power-management is supported.
1374 Module snd-opti92x-ad1848
1375 -------------------------
1377 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1378 Module works with OAK Mozart cards as well.
1380 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1382 with isapnp=0, the following options are available:
1384 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1385 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1386 fm_port - port # for OPL3 device (0x388)
1387 irq - IRQ # for WSS chip (5,7,9,10,11)
1388 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1389 dma1 - first DMA # for WSS chip (0,1,3)
1391 This module supports only one card, autoprobe and PnP.
1393 Module snd-opti92x-cs4231
1394 -------------------------
1396 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1398 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1400 with isapnp=0, the following options are available:
1402 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1403 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1404 fm_port - port # for OPL3 device (0x388)
1405 irq - IRQ # for WSS chip (5,7,9,10,11)
1406 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1407 dma1 - first DMA # for WSS chip (0,1,3)
1408 dma2 - second DMA # for WSS chip (0,1,3)
1410 This module supports only one card, autoprobe and PnP.
1415 Module for sound cards based on OPTi 82c93x chips.
1417 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1419 with isapnp=0, the following options are available:
1421 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1422 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1423 fm_port - port # for OPL3 device (0x388)
1424 irq - IRQ # for WSS chip (5,7,9,10,11)
1425 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1426 dma1 - first DMA # for WSS chip (0,1,3)
1427 dma2 - second DMA # for WSS chip (0,1,3)
1429 This module supports only one card, autoprobe and PnP.
1434 Module for sound cards based on the C-Media CMI8788 chip:
1436 * AuzenTech X-Meridian
1438 * Club3D Theatron DTS
1439 * HT-Omega Claro (plus)
1440 * HT-Omega Claro halo (XT)
1441 * Razer Barracuda AC-1
1444 This module supports autoprobe and multiple cards.
1449 Module for internal PC-Speaker.
1451 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1453 This module supports system beeps, some kind of PCM playback and
1454 even a few mixer controls.
1459 Module for Digigram PCXHR boards
1461 This module supports multiple cards.
1463 Module snd-portman2x4
1464 ---------------------
1466 Module for Midiman Portman 2x4 parallel port MIDI interface
1468 This module supports multiple cards.
1470 Module snd-powermac (on ppc only)
1471 ---------------------------------
1473 Module for PowerMac, iMac and iBook on-board soundchips
1475 enable_beep - enable beep using PCM (enabled as default)
1477 Module supports autoprobe a chip.
1479 Note: the driver may have problems regarding endianess.
1481 The power-management is supported.
1483 Module snd-pxa2xx-ac97 (on arm only)
1484 ------------------------------------
1486 Module for AC97 driver for the Intel PXA2xx chip
1488 For ARM architecture only.
1490 The power-management is supported.
1495 Module for Conexant Riptide chip
1497 joystick_port - Joystick port # (default: 0x200)
1498 mpu_port - MPU401 port # (default: 0x330)
1499 opl3_port - OPL3 port # (default: 0x388)
1501 This module supports multiple cards.
1502 The driver requires the firmware loader support on kernel.
1503 You need to install the firmware file "riptide.hex" to the standard
1504 firmware path (e.g. /lib/firmware).
1509 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1510 Prodif96 and Prodif Gold) sound cards.
1512 This module supports multiple cards.
1517 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1519 This module supports multiple cards.
1524 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1526 precise_ptr - Enable precise pointer (doesn't work reliably).
1529 This module supports multiple cards.
1531 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1532 module did formerly. It will allocate the buffers in advance
1533 when any RME9652 cards are found. To make the buffer
1534 allocation sure, load snd-page-alloc module in the early
1535 stage of boot sequence. See "Early Buffer Allocation"
1538 Module snd-sa11xx-uda1341 (on arm only)
1539 ---------------------------------------
1541 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1543 Module supports only one card.
1544 Module has no enable and index options.
1546 The power-management is supported.
1551 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1555 port - port # for SB DSP chip (0x220,0x240,0x260)
1556 irq - IRQ # for SB DSP chip (5,7,9,10)
1557 dma8 - DMA # for SB DSP chip (1,3)
1559 This module supports multiple cards and autoprobe.
1561 The power-management is supported.
1563 Module snd-sb16 and snd-sbawe
1564 -----------------------------
1566 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1567 SoundBlaster AWE 32 (PnP),
1568 SoundBlaster AWE 64 PnP
1570 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1571 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1572 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1574 with isapnp=0, the following options are available:
1576 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1577 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1578 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1579 (snd-sbawe module only)
1580 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1581 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1582 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1584 This module supports multiple cards, autoprobe and ISA PnP.
1586 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1587 disable 16bit DMA with dma16 = -1 module parameter.
1588 Also, all Sound Blaster 16 type cards can operate in 16-bit
1589 half duplex mode through 8-bit DMA channel by disabling their
1592 The power-management is supported.
1597 Module for Gallant SC-6000 soundcard and later models: SC-6600
1600 port - Port # (0x220 or 0x240)
1601 mss_port - MSS Port # (0x530 or 0xe80)
1602 irq - IRQ # (5,7,9,10,11)
1603 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1605 joystick - Enable gameport - 0 = disable (default), 1 = enable
1607 This module supports multiple cards.
1609 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1614 Module for Aztech Sound Galaxy sound card.
1616 sbport - Port # for SB16 interface (0x220,0x240)
1617 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1618 irq - IRQ # (7,9,10,11)
1621 This module supports multiple cards.
1623 The power-management is supported.
1628 Module for ENSONIQ SoundScape PnP cards.
1630 port - Port # (PnP setup)
1631 wss_port - WSS Port # (PnP setup)
1632 irq - IRQ # (PnP setup)
1633 mpu_irq - MPU-401 IRQ # (PnP setup)
1634 dma - DMA # (PnP setup)
1635 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1637 This module supports multiple cards. ISA PnP must be enabled.
1638 You need sscape_ctl tool in alsa-tools package for loading
1641 Module snd-sun-amd7930 (on sparc only)
1642 --------------------------------------
1644 Module for AMD7930 sound chips found on Sparcs.
1646 This module supports multiple cards.
1648 Module snd-sun-cs4231 (on sparc only)
1649 -------------------------------------
1651 Module for CS4231 sound chips found on Sparcs.
1653 This module supports multiple cards.
1655 Module snd-sun-dbri (on sparc only)
1656 -----------------------------------
1658 Module for DBRI sound chips found on Sparcs.
1660 This module supports multiple cards.
1662 Module snd-wavefront
1663 --------------------
1665 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1667 use_cs4232_midi - Use CS4232 MPU-401 interface
1668 (inaccessibly located inside your computer)
1669 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1671 with isapnp=0, the following options are available:
1673 cs4232_pcm_port - Port # for CS4232 PCM interface.
1674 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1675 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1676 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1677 ics2115_port - Port # for ICS2115
1678 ics2115_irq - IRQ # for ICS2115
1679 fm_port - FM OPL-3 Port #
1680 dma1 - DMA1 # for CS4232 PCM interface.
1681 dma2 - DMA2 # for CS4232 PCM interface.
1683 The below are options for wavefront_synth features:
1684 wf_raw - Assume that we need to boot the OS (default:no)
1685 If yes, then during driver loading, the state of the board is
1686 ignored, and we reset the board and load the firmware anyway.
1687 fx_raw - Assume that the FX process needs help (default:yes)
1688 If false, we'll leave the FX processor in whatever state it is
1689 when the driver is loaded. The default is to download the
1690 microprogram and associated coefficients to set it up for
1691 "default" operation, whatever that means.
1692 debug_default - Debug parameters for card initialization
1693 wait_usecs - How long to wait without sleeping, usecs
1695 This magic number seems to give pretty optimal throughput
1696 based on my limited experimentation.
1697 If you want to play around with it and find a better value, be
1698 my guest. Remember, the idea is to get a number that causes us
1699 to just busy wait for as many WaveFront commands as possible,
1700 without coming up with a number so large that we hog the whole
1702 Specifically, with this number, out of about 134,000 status
1703 waits, only about 250 result in a sleep.
1704 sleep_interval - How long to sleep when waiting for reply
1706 sleep_tries - How many times to try sleeping during a wait
1708 ospath - Pathname to processed ICS2115 OS firmware
1709 (default:wavefront.os)
1710 The path name of the ISC2115 OS firmware. In the recent
1711 version, it's handled via firmware loader framework, so it
1712 must be installed in the proper path, typically,
1714 reset_time - How long to wait for a reset to take effect
1716 ramcheck_time - How many seconds to wait for the RAM test
1718 osrun_time - How many seconds to wait for the ICS2115 OS
1721 This module supports multiple cards and ISA PnP.
1723 Note: the firmware file "wavefront.os" was located in the earlier
1724 version in /etc. Now it's loaded via firmware loader, and
1725 must be in the proper firmware path, such as /lib/firmware.
1726 Copy (or symlink) the file appropriately if you get an error
1727 regarding firmware downloading after upgrading the kernel.
1729 Module snd-sonicvibes
1730 ---------------------
1732 Module for S3 SonicVibes PCI sound cards.
1733 * PINE Schubert 32 PCI
1735 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1736 - SoundCard must have onboard SRAM for this.
1737 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1739 This module supports multiple cards and autoprobe.
1741 Module snd-serial-u16550
1742 ------------------------
1744 Module for UART16550A serial MIDI ports.
1746 port - port # for UART16550A chip
1747 irq - IRQ # for UART16550A chip, -1 = poll mode
1748 speed - speed in bauds (9600,19200,38400,57600,115200)
1750 base - base for divisor in bauds (57600,115200,230400,460800)
1752 outs - number of MIDI ports in a serial port (1-4)
1754 adaptor - Type of adaptor.
1755 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1756 3 = MS-124W M/B, 4 = Generic
1758 This module supports multiple cards. This module does not support autoprobe
1759 thus the main port must be specified!!! Other options are optional.
1764 Module for Trident 4DWave DX/NX sound cards.
1765 * Best Union Miss Melody 4DWave PCI
1767 * Warpspeed ONSpeed 4DWave PCI
1770 * CHIC True Sound 4Dwave
1771 * Shark Predator4D-PCI
1772 * Jaton SonicWave 4D
1773 * SiS SI7018 PCI Audio
1774 * Hoontech SoundTrack Digital 4DWave NX
1776 pcm_channels - max channels (voices) reserved for PCM
1777 wavetable_size - max wavetable size in kB (4-?kb)
1779 This module supports multiple cards and autoprobe.
1781 The power-management is supported.
1783 Module snd-usb-audio
1784 --------------------
1786 Module for USB audio and USB MIDI devices.
1788 vid - Vendor ID for the device (optional)
1789 pid - Product ID for the device (optional)
1790 nrpacks - Max. number of packets per URB (default: 8)
1791 async_unlink - Use async unlink mode (default: yes)
1792 device_setup - Device specific magic number (optional)
1793 - Influence depends on the device
1795 ignore_ctl_error - Ignore any USB-controller regarding mixer
1796 interface (default: no)
1798 This module supports multiple devices, autoprobe and hotplugging.
1800 NB: nrpacks parameter can be modified dynamically via sysfs.
1801 Don't put the value over 20. Changing via sysfs has no sanity
1803 NB: async_unlink=0 would cause Oops. It remains just for
1804 debugging purpose (if any).
1805 NB: ignore_ctl_error=1 may help when you get an error at accessing
1806 the mixer element such as URB error -22. This happens on some
1807 buggy USB device or the controller.
1809 Module snd-usb-caiaq
1810 --------------------
1812 Module for caiaq UB audio interfaces,
1813 * Native Instruments RigKontrol2
1814 * Native Instruments Kore Controller
1815 * Native Instruments Audio Kontrol 1
1816 * Native Instruments Audio 8 DJ
1818 This module supports multiple devices, autoprobe and hotplugging.
1820 Module snd-usb-usx2y
1821 --------------------
1823 Module for Tascam USB US-122, US-224 and US-428 devices.
1825 This module supports multiple devices, autoprobe and hotplugging.
1827 Note: you need to load the firmware via usx2yloader utility included
1828 in alsa-tools and alsa-firmware packages.
1833 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1834 8233A, 8233C, 8235, 8237 (south) bridge.
1836 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1838 joystick - Enable joystick (default off) [VIA686A/686B only]
1839 ac97_clock - AC'97 codec clock base (default 48000Hz)
1840 dxs_support - support DXS channels,
1841 0 = auto (default), 1 = enable, 2 = disable,
1842 3 = 48k only, 4 = no VRA, 5 = enable any sample
1843 rate and different sample rates on different
1845 [VIA8233/C, 8235, 8237 only]
1846 ac97_quirk - AC'97 workaround for strange hardware
1847 See "AC97 Quirk Option" section below.
1849 This module supports one chip and autoprobe.
1851 Note: on some SMP motherboards like MSI 694D the interrupts might
1852 not be generated properly. In such a case, please try to
1853 set the SMP (or MPS) version on BIOS to 1.1 instead of
1854 default value 1.4. Then the interrupt number will be
1855 assigned under 15. You might also upgrade your BIOS.
1857 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1858 channels as the first PCM. On these channels, up to 4
1859 streams can be played at the same time, and the controller
1860 can perform sample rate conversion with separate rates for
1862 As default (dxs_support = 0), 48k fixed rate is chosen
1863 except for the known devices since the output is often
1864 noisy except for 48k on some mother boards due to the
1866 Please try once dxs_support=5 and if it works on other
1867 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1868 know the PCI subsystem vendor/device id's (output of
1870 If dxs_support=5 does not work, try dxs_support=4; if it
1871 doesn't work too, try dxs_support=1. (dxs_support=1 is
1872 usually for old motherboards. The correct implemented
1873 board should work with 4 or 5.) If it still doesn't
1874 work and the default setting is ok, dxs_support=3 is the
1875 right choice. If the default setting doesn't work at all,
1876 try dxs_support=2 to disable the DXS channels.
1877 In any cases, please let us know the result and the
1878 subsystem vendor/device ids. See "Links and Addresses"
1881 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1882 additionally. The mpu_port option is for VIA686 chips only.
1884 The power-management is supported.
1886 Module snd-via82xx-modem
1887 ------------------------
1889 Module for VIA82xx AC97 modem
1891 ac97_clock - AC'97 codec clock base (default 48000Hz)
1893 This module supports one card and autoprobe.
1895 Note: The default index value of this module is -2, i.e. the first
1898 The power-management is supported.
1903 Module for virtual rawmidi devices.
1904 This module creates virtual rawmidi devices which communicate
1905 to the corresponding ALSA sequencer ports.
1907 midi_devs - MIDI devices # (1-4, default=4)
1909 This module supports multiple cards.
1914 Module for sound cards based on the Asus AV100/AV200 chips,
1915 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), Essence ST
1916 (Deluxe) and Essence STX.
1918 This module supports autoprobe and multiple cards.
1923 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1925 mic - Enable Microphone on V222 Mic (NYI)
1926 ibl - Capture IBL size. (default = 0, minimum size)
1928 This module supports multiple cards.
1930 When the driver is compiled as a module and the hotplug firmware
1931 is supported, the firmware data is loaded via hotplug automatically.
1932 Install the necessary firmware files in alsa-firmware package.
1933 When no hotplug fw loader is available, you need to load the
1934 firmware via vxloader utility in alsa-tools package. To invoke
1935 vxloader automatically, add the following to /etc/modprobe.conf
1937 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1939 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1940 /etc/modules.conf, instead.)
1941 IBL size defines the interrupts period for PCM. The smaller size
1942 gives smaller latency but leads to more CPU consumption, too.
1943 The size is usually aligned to 126. As default (=0), the smallest
1944 size is chosen. The possible IBL values can be found in
1945 /proc/asound/cardX/vx-status proc file.
1947 The power-management is supported.
1952 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1954 ibl - Capture IBL size. (default = 0, minimum size)
1956 This module supports multiple cards. The module is compiled only when
1957 PCMCIA is supported on kernel.
1959 With the older 2.6.x kernel, to activate the driver via the card
1960 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1961 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1962 longer require a config file.
1964 When the driver is compiled as a module and the hotplug firmware
1965 is supported, the firmware data is loaded via hotplug automatically.
1966 Install the necessary firmware files in alsa-firmware package.
1967 When no hotplug fw loader is available, you need to load the
1968 firmware via vxloader utility in alsa-tools package.
1970 About capture IBL, see the description of snd-vx222 module.
1972 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1975 The power-management is supported.
1980 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1982 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1983 1 (auto-detect for YMF744/754 only)
1984 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1985 1 (auto-detect for YMF744/754 only)
1986 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1988 rear_switch - enable shared rear/line-in switch (bool)
1990 This module supports autoprobe and multiple chips.
1992 The power-management is supported.
1994 Module snd-pdaudiocf
1995 --------------------
1997 Module for Sound Core PDAudioCF sound card.
1999 The power-management is supported.
2005 The ac97_quirk option is used to enable/override the workaround for
2006 specific devices on drivers for on-board AC'97 controllers like
2007 snd-intel8x0. Some hardware have swapped output pins between Master
2008 and Headphone, or Surround (thanks to confusion of AC'97
2009 specifications from version to version :-)
2011 The driver provides the auto-detection of known problematic devices,
2012 but some might be unknown or wrongly detected. In such a case, pass
2013 the proper value with this option.
2015 The following strings are accepted:
2016 - default Don't override the default setting
2017 - none Disable the quirk
2018 - hp_only Bind Master and Headphone controls as a single control
2019 - swap_hp Swap headphone and master controls
2020 - swap_surround Swap master and surround controls
2021 - ad_sharing For AD1985, turn on OMS bit and use headphone
2022 - alc_jack For ALC65x, turn on the jack sense mode
2023 - inv_eapd Inverted EAPD implementation
2024 - mute_led Bind EAPD bit for turning on/off mute LED
2026 For backward compatibility, the corresponding integer value -1, 0,
2027 ... are accepted, too.
2029 For example, if "Master" volume control has no effect on your device
2030 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2033 Configuring Non-ISAPNP Cards
2034 ============================
2036 When the kernel is configured with ISA-PnP support, the modules
2037 supporting the isapnp cards will have module options "isapnp".
2038 If this option is set, *only* the ISA-PnP devices will be probed.
2039 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2040 together with the proper i/o and irq configuration.
2042 When the kernel is configured without ISA-PnP support, isapnp option
2043 will be not built in.
2046 Module Autoloading Support
2047 ==========================
2049 The ALSA drivers can be loaded automatically on demand by defining
2050 module aliases. The string 'snd-card-%1' is requested for ALSA native
2051 devices where %i is sound card number from zero to seven.
2053 To auto-load an ALSA driver for OSS services, define the string
2054 'sound-slot-%i' where %i means the slot number for OSS, which
2055 corresponds to the card index of ALSA. Usually, define this
2056 as the same card module.
2058 An example configuration for a single emu10k1 card is like below:
2059 ----- /etc/modprobe.conf
2060 alias snd-card-0 snd-emu10k1
2061 alias sound-slot-0 snd-emu10k1
2062 ----- /etc/modprobe.conf
2064 The available number of auto-loaded sound cards depends on the module
2065 option "cards_limit" of snd module. As default it's set to 1.
2066 To enable the auto-loading of multiple cards, specify the number of
2067 sound cards in that option.
2069 When multiple cards are available, it'd better to specify the index
2070 number for each card via module option, too, so that the order of
2071 cards is kept consistent.
2073 An example configuration for two sound cards is like below:
2075 ----- /etc/modprobe.conf
2077 options snd cards_limit=2
2078 alias snd-card-0 snd-interwave
2079 alias snd-card-1 snd-ens1371
2080 options snd-interwave index=0
2081 options snd-ens1371 index=1
2083 alias sound-slot-0 snd-interwave
2084 alias sound-slot-1 snd-ens1371
2085 ----- /etc/modprobe.conf
2087 In this example, the interwave card is always loaded as the first card
2088 (index 0) and ens1371 as the second (index 1).
2090 Alternative (and new) way to fixate the slot assignment is to use
2091 "slots" option of snd module. In the case above, specify like the
2094 options snd slots=snd-interwave,snd-ens1371
2096 Then, the first slot (#0) is reserved for snd-interwave driver, and
2097 the second (#1) for snd-ens1371. You can omit index option in each
2098 driver if slots option is used (although you can still have them at
2099 the same time as long as they don't conflict).
2101 The slots option is especially useful for avoiding the possible
2102 hot-plugging and the resultant slot conflict. For example, in the
2103 case above again, the first two slots are already reserved. If any
2104 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2105 snd-ens1371, it will be assigned to the third or later slot.
2107 When a module name is given with '!', the slot will be given for any
2108 modules but that name. For example, "slots=!snd-pcsp" will reserve
2109 the first slot for any modules but snd-pcsp.
2112 ALSA PCM devices to OSS devices mapping
2113 =======================================
2115 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2116 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2117 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2118 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2119 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2120 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2121 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2122 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2123 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2125 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2126 sound card number and second means device number. The ALSA devices
2127 have either 'c' or 'p' suffix indicating the direction, capture and
2128 playback, respectively.
2130 Please note that the device mapping above may be varied via the module
2131 options of snd-pcm-oss module.
2134 Proc interfaces (/proc/asound)
2135 ==============================
2137 /proc/asound/card#/pcm#[cp]/oss
2138 -------------------------------
2139 String "erase" - erase all additional informations about OSS applications
2140 String "<app_name> <fragments> <fragment_size> [<options>]"
2142 <app_name> - name of application with (higher priority) or without path
2143 <fragments> - number of fragments or zero if auto
2144 <fragment_size> - size of fragment in bytes or zero if auto
2145 <options> - optional parameters
2146 - disable the application tries to open a pcm device for
2147 this channel but does not want to use it.
2148 (Cause a bug or mmap needs)
2149 It's good for Quake etc...
2150 - direct don't use plugins
2151 - block force block mode (rvplayer)
2152 - non-block force non-block mode
2153 - whole-frag write only whole fragments (optimization affecting
2155 - no-silence do not fill silence ahead to avoid clicks
2156 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2157 instead of filled blocks
2159 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2160 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2161 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2164 Early Buffer Allocation
2165 =======================
2167 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2168 sometimes it's too late to find such spaces when the driver module is
2169 actually loaded due to memory fragmentation. You can pre-allocate the
2170 PCM buffers by loading snd-page-alloc module and write commands to its
2171 proc file in prior, for example, in the early boot stage like
2172 /etc/init.d/*.local scripts.
2174 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2175 usage of page allocation. In writing, you can send the following
2176 commands to the snd-page-alloc driver:
2178 - add VENDOR DEVICE MASK SIZE BUFFERS
2180 VENDOR and DEVICE are PCI vendor and device IDs. They take
2181 integer numbers (0x prefix is needed for the hex).
2182 MASK is the PCI DMA mask. Pass 0 if not restricted.
2183 SIZE is the size of each buffer to allocate. You can pass
2184 k and m suffix for KB and MB. The max number is 16MB.
2185 BUFFERS is the number of buffers to allocate. It must be greater
2186 than 0. The max number is 4.
2190 This will erase the all pre-allocated buffers which are not in
2197 ALSA project homepage
2198 http://www.alsa-project.org
2201 http://bugzilla.kernel.org/
2204 mailto:alsa-devel@alsa-project.org
2207 http://www.alsa-project.org/alsa-info.sh
git.openpandora.org / pandora-kernel.git / blob