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.
792 [Single (global) options]
793 single_cmd - Use single immediate commands to communicate with
794 codecs (for debugging only)
795 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
796 power_save - Automatic power-saving timeout (in second, 0 =
798 power_save_controller - Reset HD-audio controller in power-saving mode
801 This module supports multiple cards and autoprobe.
803 See Documentation/sound/alsa/HD-Audio.txt for more details about
806 Each codec may have a model table for different configurations.
807 If your machine isn't listed there, the default (usually minimal)
808 configuration is set up. You can pass "model=<name>" option to
809 specify a certain model in such a case. There are different
810 models depending on the codec chip. The list of available models
811 is found in HD-Audio-Models.txt
813 The model name "genric" is treated as a special case. When this
814 model is given, the driver uses the generic codec parser without
815 "codec-patch". It's sometimes good for testing and debugging.
817 If the default configuration doesn't work and one of the above
818 matches with your device, report it together with alsa-info.sh
819 output (with --no-upload option) to kernel bugzilla or alsa-devel
820 ML (see the section "Links and Addresses").
822 power_save and power_save_controller options are for power-saving
823 mode. See powersave.txt for details.
825 Note 2: If you get click noises on output, try the module option
826 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
827 register value without FIFO size correction as the current
828 DMA pointer. position_fix=2 will make the driver to use
829 the position buffer instead of reading SD_LPIB register.
830 (Usually SD_LPIB register is more accurate than the
833 NB: If you get many "azx_get_response timeout" messages at
834 loading, it's likely a problem of interrupts (e.g. ACPI irq
835 routing). Try to boot with options like "pci=noacpi". Also, you
836 can try "single_cmd=1" module option. This will switch the
837 communication method between HDA controller and codecs to the
838 single immediate commands instead of CORB/RIRB. Basically, the
839 single command mode is provided only for BIOS, and you won't get
840 unsolicited events, too. But, at least, this works independently
841 from the irq. Remember this is a last resort, and should be
842 avoided as much as possible...
844 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
845 On some hardwares, you may need to add a proper probe_mask option
846 to avoid the "azx_get_response timeout" problem above, instead.
847 This occurs when the access to non-existing or non-working codec slot
848 (likely a modem one) causes a stall of the communication via HD-audio
849 bus. You can see which codec slots are probed by enabling
850 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
851 proc files. Then limit the slots to probe by probe_mask option.
852 For example, probe_mask=1 means to probe only the first slot, and
853 probe_mask=4 means only the third slot.
855 The power-management is supported.
860 Module for RME Hammerfall DSP audio interface(s)
862 This module supports multiple cards.
864 Note: The firmware data can be automatically loaded via hotplug
865 when CONFIG_FW_LOADER is set. Otherwise, you need to load
866 the firmware via hdsploader utility included in alsa-tools
868 The firmware data is found in alsa-firmware package.
870 Note: snd-page-alloc module does the job which snd-hammerfall-mem
871 module did formerly. It will allocate the buffers in advance
872 when any HDSP cards are found. To make the buffer
873 allocation sure, load snd-page-alloc module in the early
874 stage of boot sequence. See "Early Buffer Allocation"
880 Module for RME HDSP MADI board.
882 precise_ptr - Enable precise pointer, or disable.
883 line_outs_monitor - Send playback streams to analog outs by default.
884 enable_monitor - Enable Analog Out on Channel 63/64 by default.
886 See hdspm.txt for details.
891 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
893 This module supports autoprobe and multiple cards.
898 Module for Envy24 (ICE1712) based PCI sound cards.
899 * MidiMan M Audio Delta 1010
900 * MidiMan M Audio Delta 1010LT
901 * MidiMan M Audio Delta DiO 2496
902 * MidiMan M Audio Delta 66
903 * MidiMan M Audio Delta 44
904 * MidiMan M Audio Delta 410
905 * MidiMan M Audio Audiophile 2496
911 * Hoontech SoundTrack DSP 24
912 * Hoontech SoundTrack DSP 24 Value
913 * Hoontech SoundTrack DSP 24 Media 7.1
914 * Event Electronics, EZ8
916 * Lionstracs, Mediastaton
919 model - Use the given board model, one of the following:
920 delta1010, dio2496, delta66, delta44, audiophile, delta410,
921 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
922 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
923 phase88, mediastation
924 omni - Omni I/O support for MidiMan M-Audio Delta44/66
925 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
926 in msec resolution, default value is 500 (0.5 sec)
928 This module supports multiple cards and autoprobe. Note: The consumer part
929 is not used with all Envy24 based cards (for example in the MidiMan Delta
932 Note: The supported board is detected by reading EEPROM or PCI
933 SSID (if EEPROM isn't available). You can override the
934 model by passing "model" module option in case that the
935 driver isn't configured properly or you want to try another
941 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
942 * MidiMan M Audio Revolution 5.1
943 * MidiMan M Audio Revolution 7.1
944 * MidiMan M Audio Audiophile 192
946 * TerraTec Aureon 5.1 Sky
947 * TerraTec Aureon 7.1 Space
948 * TerraTec Aureon 7.1 Universe
951 * AudioTrak Prodigy 7.1
952 * AudioTrak Prodigy 7.1 LT
953 * AudioTrak Prodigy 7.1 XT
954 * AudioTrak Prodigy 7.1 HIFI
955 * AudioTrak Prodigy 7.1 HD2
956 * AudioTrak Prodigy 192
958 * Albatron K8X800 Pro II
968 * Hercules Fortissimo IV
969 * EGO-SYS WaveTerminal 192M
971 model - Use the given board model, one of the following:
972 revo51, revo71, amp2000, prodigy71, prodigy71lt,
973 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
974 juli, aureon51, aureon71, universe, ap192, k8x800,
975 phase22, phase28, ms300, av710, se200pci, se90pci,
976 fortissimo4, sn25p, WT192M, maya44
978 This module supports multiple cards and autoprobe.
980 Note: The supported board is detected by reading EEPROM or PCI
981 SSID (if EEPROM isn't available). You can override the
982 model by passing "model" module option in case that the
983 driver isn't configured properly or you want to try another
989 Module for Echoaudio Indigo
991 This module supports multiple cards.
992 The driver requires the firmware loader support on kernel.
997 Module for Echoaudio Indigo DJ
999 This module supports multiple cards.
1000 The driver requires the firmware loader support on kernel.
1005 Module for Echoaudio Indigo IO
1007 This module supports multiple cards.
1008 The driver requires the firmware loader support on kernel.
1013 Module for AC'97 motherboards from Intel and compatibles.
1014 * Intel i810/810E, i815, i820, i830, i84x, MX440
1015 ICH5, ICH6, ICH7, 6300ESB, ESB2
1016 * SiS 7012 (SiS 735)
1017 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1019 * AMD AMD768, AMD8111
1022 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1023 ac97_quirk - AC'97 workaround for strange hardware
1024 See "AC97 Quirk Option" section below.
1025 buggy_irq - Enable workaround for buggy interrupts on some
1026 motherboards (default yes on nForce chips,
1028 buggy_semaphore - Enable workaround for hardwares with buggy
1029 semaphores (e.g. on some ASUS laptops)
1031 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1032 from the controller chip
1033 (0 = off, 1 = on, -1 = default)
1035 This module supports one chip and autoprobe.
1037 Note: the latest driver supports auto-detection of chip clock.
1038 if you still encounter too fast playback, specify the clock
1039 explicitly via the module option "ac97_clock=41194".
1041 Joystick/MIDI ports are not supported by this driver. If your
1042 motherboard has these devices, use the ns558 or snd-mpu401
1043 modules, respectively.
1045 The power-management is supported.
1047 Module snd-intel8x0m
1048 --------------------
1050 Module for Intel ICH (i8x0) chipset MC97 modems.
1051 * Intel i810/810E, i815, i820, i830, i84x, MX440
1053 * SiS 7013 (SiS 735)
1054 * NVidia NForce, NForce2, NForce2s, NForce3
1058 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1060 This module supports one card and autoprobe.
1062 Note: The default index value of this module is -2, i.e. the first
1065 The power-management is supported.
1067 Module snd-interwave
1068 --------------------
1070 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1071 and other sound cards based on AMD InterWave (tm) chip.
1073 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1074 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1075 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1076 effect - 1 = InterWave effects enable (default 0);
1078 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1080 with isapnp=0, the following options are available:
1082 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1083 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1084 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1085 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1087 This module supports multiple cards, autoprobe and ISA PnP.
1089 Module snd-interwave-stb
1090 ------------------------
1092 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1093 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1094 circuit for extended control of bass, treble and master volume.
1096 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1097 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1098 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1099 effect - 1 = InterWave effects enable (default 0);
1101 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1103 with isapnp=0, the following options are available:
1105 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1106 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1107 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1108 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1109 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1111 This module supports multiple cards, autoprobe and ISA PnP.
1116 Module for Korg 1212 IO PCI card
1118 This module supports multiple cards.
1123 Module for Echoaudio Layla20
1125 This module supports multiple cards.
1126 The driver requires the firmware loader support on kernel.
1131 Module for Echoaudio Layla24
1133 This module supports multiple cards.
1134 The driver requires the firmware loader support on kernel.
1139 Module for Digigram LX6464ES boards
1141 This module supports multiple cards.
1146 Module for Allegro/Maestro3 chips
1148 external_amp - enable external amp (enabled by default)
1149 amp_gpio - GPIO pin number for external amp (0-15) or
1150 -1 for default pin (8 for allegro, 1 for
1153 This module supports autoprobe and multiple chips.
1155 Note: the binding of amplifier is dependent on hardware.
1156 If there is no sound even though all channels are unmuted, try to
1157 specify other gpio connection via amp_gpio option.
1158 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1161 The power-management is supported.
1166 Module for Echoaudio Mia
1168 This module supports multiple cards.
1169 The driver requires the firmware loader support on kernel.
1174 Module for Miro soundcards: miroSOUND PCM 1 pro,
1176 miroSOUND PCM 20 Radio.
1178 port - Port # (0x530,0x604,0xe80,0xf40)
1179 irq - IRQ # (5,7,9,10,11)
1180 dma1 - 1st dma # (0,1,3)
1181 dma2 - 2nd dma # (0,1)
1182 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1183 mpu_irq - MPU-401 irq # (5,7,9,10)
1184 fm_port - FM Port # (0x388)
1185 wss - enable WSS mode
1186 ide - enable onboard ide support
1191 Module for Digigram miXart8 sound cards.
1193 This module supports multiple cards.
1194 Note: One miXart8 board will be represented as 4 alsa cards.
1195 See MIXART.txt for details.
1197 When the driver is compiled as a module and the hotplug firmware
1198 is supported, the firmware data is loaded via hotplug automatically.
1199 Install the necessary firmware files in alsa-firmware package.
1200 When no hotplug fw loader is available, you need to load the
1201 firmware via mixartloader utility in alsa-tools package.
1206 Module for Echoaudio Mona
1208 This module supports multiple cards.
1209 The driver requires the firmware loader support on kernel.
1214 Module for MPU-401 UART devices.
1216 port - port number or -1 (disable)
1217 irq - IRQ number or -1 (disable)
1218 pnp - PnP detection - 0 = disable, 1 = enable (default)
1220 This module supports multiple devices and PnP.
1222 Module snd-msnd-classic
1223 -----------------------
1225 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1228 io - Port # for msnd-classic card
1229 irq - IRQ # for msnd-classic card
1230 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1232 write_ndelay - enable write ndelay (default = 1)
1233 calibrate_signal - calibrate signal (default = 0)
1234 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1235 digital - Digital daughterboard present (default = 0)
1236 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1237 reset - Reset all devices
1238 mpu_io - MPU401 I/O port
1239 mpu_irq - MPU401 irq#
1240 ide_io0 - IDE port #0
1241 ide_io1 - IDE port #1
1243 joystick_io - Joystick I/O port
1245 The driver requires firmware files "turtlebeach/msndinit.bin" and
1246 "turtlebeach/msndperm.bin" in the proper firmware directory.
1248 See Documentation/sound/oss/MultiSound for important information
1249 about this driver. Note that it has been discontinued, but the
1250 Voyetra Turtle Beach knowledge base entry for it is still available
1252 http://www.turtlebeach.com/site/kb_ftp/790.asp
1254 Module snd-msnd-pinnacle
1255 ------------------------
1257 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1259 io - Port # for pinnacle/fiji card
1260 irq - IRQ # for pinnalce/fiji card
1261 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1263 write_ndelay - enable write ndelay (default = 1)
1264 calibrate_signal - calibrate signal (default = 0)
1265 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1267 The driver requires firmware files "turtlebeach/pndspini.bin" and
1268 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1273 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1276 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1277 irq - IRQ # for MTPAV (7,5, default=7)
1278 hwports - number of supported hardware ports, default=8.
1280 Module supports only 1 card. This module has no enable option.
1285 Module for Ego Systems (ESI) Miditerminal 4140
1287 This module supports multiple devices.
1288 Requires parport (CONFIG_PARPORT).
1293 Module for NeoMagic NM256AV/ZX chips
1295 playback_bufsize - max playback frame size in kB (4-128kB)
1296 capture_bufsize - max capture frame size in kB (4-128kB)
1297 force_ac97 - 0 or 1 (disabled by default)
1298 buffer_top - specify buffer top address
1299 use_cache - 0 or 1 (disabled by default)
1300 vaio_hack - alias buffer_top=0x25a800
1301 reset_workaround - enable AC97 RESET workaround for some laptops
1302 reset_workaround2 - enable extended AC97 RESET workaround for some
1305 This module supports one chip and autoprobe.
1307 The power-management is supported.
1309 Note: on some notebooks the buffer address cannot be detected
1310 automatically, or causes hang-up during initialization.
1311 In such a case, specify the buffer top address explicitly via
1312 the buffer_top option.
1314 Sony F250: buffer_top=0x25a800
1315 Sony F270: buffer_top=0x272800
1316 The driver supports only ac97 codec. It's possible to force
1317 to initialize/use ac97 although it's not detected. In such a
1318 case, use force_ac97=1 option - but *NO* guarantee whether it
1321 Note: The NM256 chip can be linked internally with non-AC97
1322 codecs. This driver supports only the AC97 codec, and won't work
1323 with machines with other (most likely CS423x or OPL3SAx) chips,
1324 even though the device is detected in lspci. In such a case, try
1325 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1326 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1327 and proper hardware parameters in the case without ISA PnP.
1329 Note: some laptops need a workaround for AC97 RESET. For the
1330 known hardware like Dell Latitude LS and Sony PCG-F305, this
1331 workaround is enabled automatically. For other laptops with a
1332 hard freeze, you can try reset_workaround=1 option.
1334 Note: Dell Latitude CSx laptops have another problem regarding
1335 AC97 RESET. On these laptops, reset_workaround2 option is
1336 turned on as default. This option is worth to try if the
1337 previous reset_workaround option doesn't help.
1339 Note: This driver is really crappy. It's a porting from the
1340 OSS driver, which is a result of black-magic reverse engineering.
1341 The detection of codec will fail if the driver is loaded *after*
1342 X-server as described above. You might be able to force to load
1343 the module, but it may result in hang-up. Hence, make sure that
1344 you load this module *before* X if you encounter this kind of
1350 Module for Yamaha OPL3-SA2/SA3 sound cards.
1352 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1354 with isapnp=0, the following options are available:
1356 port - control port # for OPL3-SA chip (0x370)
1357 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1358 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1359 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1360 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1361 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1362 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1363 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1365 This module supports multiple cards and ISA PnP. It does not support
1366 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1368 The power-management is supported.
1370 Module snd-opti92x-ad1848
1371 -------------------------
1373 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1374 Module works with OAK Mozart cards as well.
1376 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1378 with isapnp=0, the following options are available:
1380 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1381 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1382 fm_port - port # for OPL3 device (0x388)
1383 irq - IRQ # for WSS chip (5,7,9,10,11)
1384 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1385 dma1 - first DMA # for WSS chip (0,1,3)
1387 This module supports only one card, autoprobe and PnP.
1389 Module snd-opti92x-cs4231
1390 -------------------------
1392 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1394 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1396 with isapnp=0, the following options are available:
1398 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1399 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1400 fm_port - port # for OPL3 device (0x388)
1401 irq - IRQ # for WSS chip (5,7,9,10,11)
1402 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1403 dma1 - first DMA # for WSS chip (0,1,3)
1404 dma2 - second DMA # for WSS chip (0,1,3)
1406 This module supports only one card, autoprobe and PnP.
1411 Module for sound cards based on OPTi 82c93x chips.
1413 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1415 with isapnp=0, the following options are available:
1417 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1418 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1419 fm_port - port # for OPL3 device (0x388)
1420 irq - IRQ # for WSS chip (5,7,9,10,11)
1421 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1422 dma1 - first DMA # for WSS chip (0,1,3)
1423 dma2 - second DMA # for WSS chip (0,1,3)
1425 This module supports only one card, autoprobe and PnP.
1430 Module for sound cards based on the C-Media CMI8788 chip:
1432 * AuzenTech X-Meridian
1434 * Club3D Theatron DTS
1435 * HT-Omega Claro (plus)
1436 * HT-Omega Claro halo (XT)
1437 * Razer Barracuda AC-1
1440 This module supports autoprobe and multiple cards.
1445 Module for internal PC-Speaker.
1447 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1449 This module supports system beeps, some kind of PCM playback and
1450 even a few mixer controls.
1455 Module for Digigram PCXHR boards
1457 This module supports multiple cards.
1459 Module snd-portman2x4
1460 ---------------------
1462 Module for Midiman Portman 2x4 parallel port MIDI interface
1464 This module supports multiple cards.
1466 Module snd-powermac (on ppc only)
1467 ---------------------------------
1469 Module for PowerMac, iMac and iBook on-board soundchips
1471 enable_beep - enable beep using PCM (enabled as default)
1473 Module supports autoprobe a chip.
1475 Note: the driver may have problems regarding endianess.
1477 The power-management is supported.
1479 Module snd-pxa2xx-ac97 (on arm only)
1480 ------------------------------------
1482 Module for AC97 driver for the Intel PXA2xx chip
1484 For ARM architecture only.
1486 The power-management is supported.
1491 Module for Conexant Riptide chip
1493 joystick_port - Joystick port # (default: 0x200)
1494 mpu_port - MPU401 port # (default: 0x330)
1495 opl3_port - OPL3 port # (default: 0x388)
1497 This module supports multiple cards.
1498 The driver requires the firmware loader support on kernel.
1499 You need to install the firmware file "riptide.hex" to the standard
1500 firmware path (e.g. /lib/firmware).
1505 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1506 Prodif96 and Prodif Gold) sound cards.
1508 This module supports multiple cards.
1513 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1515 This module supports multiple cards.
1520 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1522 precise_ptr - Enable precise pointer (doesn't work reliably).
1525 This module supports multiple cards.
1527 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1528 module did formerly. It will allocate the buffers in advance
1529 when any RME9652 cards are found. To make the buffer
1530 allocation sure, load snd-page-alloc module in the early
1531 stage of boot sequence. See "Early Buffer Allocation"
1534 Module snd-sa11xx-uda1341 (on arm only)
1535 ---------------------------------------
1537 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1539 Module supports only one card.
1540 Module has no enable and index options.
1542 The power-management is supported.
1547 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1551 port - port # for SB DSP chip (0x220,0x240,0x260)
1552 irq - IRQ # for SB DSP chip (5,7,9,10)
1553 dma8 - DMA # for SB DSP chip (1,3)
1555 This module supports multiple cards and autoprobe.
1557 The power-management is supported.
1559 Module snd-sb16 and snd-sbawe
1560 -----------------------------
1562 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1563 SoundBlaster AWE 32 (PnP),
1564 SoundBlaster AWE 64 PnP
1566 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1567 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1568 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1570 with isapnp=0, the following options are available:
1572 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1573 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1574 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1575 (snd-sbawe module only)
1576 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1577 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1578 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1580 This module supports multiple cards, autoprobe and ISA PnP.
1582 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1583 disable 16bit DMA with dma16 = -1 module parameter.
1584 Also, all Sound Blaster 16 type cards can operate in 16-bit
1585 half duplex mode through 8-bit DMA channel by disabling their
1588 The power-management is supported.
1593 Module for Gallant SC-6000 soundcard and later models: SC-6600
1596 port - Port # (0x220 or 0x240)
1597 mss_port - MSS Port # (0x530 or 0xe80)
1598 irq - IRQ # (5,7,9,10,11)
1599 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1601 joystick - Enable gameport - 0 = disable (default), 1 = enable
1603 This module supports multiple cards.
1605 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1610 Module for Aztech Sound Galaxy sound card.
1612 sbport - Port # for SB16 interface (0x220,0x240)
1613 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1614 irq - IRQ # (7,9,10,11)
1617 This module supports multiple cards.
1619 The power-management is supported.
1624 Module for ENSONIQ SoundScape PnP cards.
1626 port - Port # (PnP setup)
1627 wss_port - WSS Port # (PnP setup)
1628 irq - IRQ # (PnP setup)
1629 mpu_irq - MPU-401 IRQ # (PnP setup)
1630 dma - DMA # (PnP setup)
1631 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1633 This module supports multiple cards. ISA PnP must be enabled.
1634 You need sscape_ctl tool in alsa-tools package for loading
1637 Module snd-sun-amd7930 (on sparc only)
1638 --------------------------------------
1640 Module for AMD7930 sound chips found on Sparcs.
1642 This module supports multiple cards.
1644 Module snd-sun-cs4231 (on sparc only)
1645 -------------------------------------
1647 Module for CS4231 sound chips found on Sparcs.
1649 This module supports multiple cards.
1651 Module snd-sun-dbri (on sparc only)
1652 -----------------------------------
1654 Module for DBRI sound chips found on Sparcs.
1656 This module supports multiple cards.
1658 Module snd-wavefront
1659 --------------------
1661 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1663 use_cs4232_midi - Use CS4232 MPU-401 interface
1664 (inaccessibly located inside your computer)
1665 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1667 with isapnp=0, the following options are available:
1669 cs4232_pcm_port - Port # for CS4232 PCM interface.
1670 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1671 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1672 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1673 ics2115_port - Port # for ICS2115
1674 ics2115_irq - IRQ # for ICS2115
1675 fm_port - FM OPL-3 Port #
1676 dma1 - DMA1 # for CS4232 PCM interface.
1677 dma2 - DMA2 # for CS4232 PCM interface.
1679 The below are options for wavefront_synth features:
1680 wf_raw - Assume that we need to boot the OS (default:no)
1681 If yes, then during driver loading, the state of the board is
1682 ignored, and we reset the board and load the firmware anyway.
1683 fx_raw - Assume that the FX process needs help (default:yes)
1684 If false, we'll leave the FX processor in whatever state it is
1685 when the driver is loaded. The default is to download the
1686 microprogram and associated coefficients to set it up for
1687 "default" operation, whatever that means.
1688 debug_default - Debug parameters for card initialization
1689 wait_usecs - How long to wait without sleeping, usecs
1691 This magic number seems to give pretty optimal throughput
1692 based on my limited experimentation.
1693 If you want to play around with it and find a better value, be
1694 my guest. Remember, the idea is to get a number that causes us
1695 to just busy wait for as many WaveFront commands as possible,
1696 without coming up with a number so large that we hog the whole
1698 Specifically, with this number, out of about 134,000 status
1699 waits, only about 250 result in a sleep.
1700 sleep_interval - How long to sleep when waiting for reply
1702 sleep_tries - How many times to try sleeping during a wait
1704 ospath - Pathname to processed ICS2115 OS firmware
1705 (default:wavefront.os)
1706 The path name of the ISC2115 OS firmware. In the recent
1707 version, it's handled via firmware loader framework, so it
1708 must be installed in the proper path, typically,
1710 reset_time - How long to wait for a reset to take effect
1712 ramcheck_time - How many seconds to wait for the RAM test
1714 osrun_time - How many seconds to wait for the ICS2115 OS
1717 This module supports multiple cards and ISA PnP.
1719 Note: the firmware file "wavefront.os" was located in the earlier
1720 version in /etc. Now it's loaded via firmware loader, and
1721 must be in the proper firmware path, such as /lib/firmware.
1722 Copy (or symlink) the file appropriately if you get an error
1723 regarding firmware downloading after upgrading the kernel.
1725 Module snd-sonicvibes
1726 ---------------------
1728 Module for S3 SonicVibes PCI sound cards.
1729 * PINE Schubert 32 PCI
1731 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1732 - SoundCard must have onboard SRAM for this.
1733 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1735 This module supports multiple cards and autoprobe.
1737 Module snd-serial-u16550
1738 ------------------------
1740 Module for UART16550A serial MIDI ports.
1742 port - port # for UART16550A chip
1743 irq - IRQ # for UART16550A chip, -1 = poll mode
1744 speed - speed in bauds (9600,19200,38400,57600,115200)
1746 base - base for divisor in bauds (57600,115200,230400,460800)
1748 outs - number of MIDI ports in a serial port (1-4)
1750 adaptor - Type of adaptor.
1751 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1752 3 = MS-124W M/B, 4 = Generic
1754 This module supports multiple cards. This module does not support autoprobe
1755 thus the main port must be specified!!! Other options are optional.
1760 Module for Trident 4DWave DX/NX sound cards.
1761 * Best Union Miss Melody 4DWave PCI
1763 * Warpspeed ONSpeed 4DWave PCI
1766 * CHIC True Sound 4Dwave
1767 * Shark Predator4D-PCI
1768 * Jaton SonicWave 4D
1769 * SiS SI7018 PCI Audio
1770 * Hoontech SoundTrack Digital 4DWave NX
1772 pcm_channels - max channels (voices) reserved for PCM
1773 wavetable_size - max wavetable size in kB (4-?kb)
1775 This module supports multiple cards and autoprobe.
1777 The power-management is supported.
1779 Module snd-usb-audio
1780 --------------------
1782 Module for USB audio and USB MIDI devices.
1784 vid - Vendor ID for the device (optional)
1785 pid - Product ID for the device (optional)
1786 nrpacks - Max. number of packets per URB (default: 8)
1787 async_unlink - Use async unlink mode (default: yes)
1788 device_setup - Device specific magic number (optional)
1789 - Influence depends on the device
1791 ignore_ctl_error - Ignore any USB-controller regarding mixer
1792 interface (default: no)
1794 This module supports multiple devices, autoprobe and hotplugging.
1796 NB: nrpacks parameter can be modified dynamically via sysfs.
1797 Don't put the value over 20. Changing via sysfs has no sanity
1799 NB: async_unlink=0 would cause Oops. It remains just for
1800 debugging purpose (if any).
1801 NB: ignore_ctl_error=1 may help when you get an error at accessing
1802 the mixer element such as URB error -22. This happens on some
1803 buggy USB device or the controller.
1805 Module snd-usb-caiaq
1806 --------------------
1808 Module for caiaq UB audio interfaces,
1809 * Native Instruments RigKontrol2
1810 * Native Instruments Kore Controller
1811 * Native Instruments Audio Kontrol 1
1812 * Native Instruments Audio 8 DJ
1814 This module supports multiple devices, autoprobe and hotplugging.
1816 Module snd-usb-usx2y
1817 --------------------
1819 Module for Tascam USB US-122, US-224 and US-428 devices.
1821 This module supports multiple devices, autoprobe and hotplugging.
1823 Note: you need to load the firmware via usx2yloader utility included
1824 in alsa-tools and alsa-firmware packages.
1829 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1830 8233A, 8233C, 8235, 8237 (south) bridge.
1832 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1834 joystick - Enable joystick (default off) [VIA686A/686B only]
1835 ac97_clock - AC'97 codec clock base (default 48000Hz)
1836 dxs_support - support DXS channels,
1837 0 = auto (default), 1 = enable, 2 = disable,
1838 3 = 48k only, 4 = no VRA, 5 = enable any sample
1839 rate and different sample rates on different
1841 [VIA8233/C, 8235, 8237 only]
1842 ac97_quirk - AC'97 workaround for strange hardware
1843 See "AC97 Quirk Option" section below.
1845 This module supports one chip and autoprobe.
1847 Note: on some SMP motherboards like MSI 694D the interrupts might
1848 not be generated properly. In such a case, please try to
1849 set the SMP (or MPS) version on BIOS to 1.1 instead of
1850 default value 1.4. Then the interrupt number will be
1851 assigned under 15. You might also upgrade your BIOS.
1853 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1854 channels as the first PCM. On these channels, up to 4
1855 streams can be played at the same time, and the controller
1856 can perform sample rate conversion with separate rates for
1858 As default (dxs_support = 0), 48k fixed rate is chosen
1859 except for the known devices since the output is often
1860 noisy except for 48k on some mother boards due to the
1862 Please try once dxs_support=5 and if it works on other
1863 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1864 know the PCI subsystem vendor/device id's (output of
1866 If dxs_support=5 does not work, try dxs_support=4; if it
1867 doesn't work too, try dxs_support=1. (dxs_support=1 is
1868 usually for old motherboards. The correct implemented
1869 board should work with 4 or 5.) If it still doesn't
1870 work and the default setting is ok, dxs_support=3 is the
1871 right choice. If the default setting doesn't work at all,
1872 try dxs_support=2 to disable the DXS channels.
1873 In any cases, please let us know the result and the
1874 subsystem vendor/device ids. See "Links and Addresses"
1877 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1878 additionally. The mpu_port option is for VIA686 chips only.
1880 The power-management is supported.
1882 Module snd-via82xx-modem
1883 ------------------------
1885 Module for VIA82xx AC97 modem
1887 ac97_clock - AC'97 codec clock base (default 48000Hz)
1889 This module supports one card and autoprobe.
1891 Note: The default index value of this module is -2, i.e. the first
1894 The power-management is supported.
1899 Module for virtual rawmidi devices.
1900 This module creates virtual rawmidi devices which communicate
1901 to the corresponding ALSA sequencer ports.
1903 midi_devs - MIDI devices # (1-4, default=4)
1905 This module supports multiple cards.
1910 Module for sound cards based on the Asus AV100/AV200 chips,
1911 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), Essence ST
1912 (Deluxe) and Essence STX.
1914 This module supports autoprobe and multiple cards.
1919 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1921 mic - Enable Microphone on V222 Mic (NYI)
1922 ibl - Capture IBL size. (default = 0, minimum size)
1924 This module supports multiple cards.
1926 When the driver is compiled as a module and the hotplug firmware
1927 is supported, the firmware data is loaded via hotplug automatically.
1928 Install the necessary firmware files in alsa-firmware package.
1929 When no hotplug fw loader is available, you need to load the
1930 firmware via vxloader utility in alsa-tools package. To invoke
1931 vxloader automatically, add the following to /etc/modprobe.conf
1933 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1935 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1936 /etc/modules.conf, instead.)
1937 IBL size defines the interrupts period for PCM. The smaller size
1938 gives smaller latency but leads to more CPU consumption, too.
1939 The size is usually aligned to 126. As default (=0), the smallest
1940 size is chosen. The possible IBL values can be found in
1941 /proc/asound/cardX/vx-status proc file.
1943 The power-management is supported.
1948 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1950 ibl - Capture IBL size. (default = 0, minimum size)
1952 This module supports multiple cards. The module is compiled only when
1953 PCMCIA is supported on kernel.
1955 With the older 2.6.x kernel, to activate the driver via the card
1956 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1957 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1958 longer require a config file.
1960 When the driver is compiled as a module and the hotplug firmware
1961 is supported, the firmware data is loaded via hotplug automatically.
1962 Install the necessary firmware files in alsa-firmware package.
1963 When no hotplug fw loader is available, you need to load the
1964 firmware via vxloader utility in alsa-tools package.
1966 About capture IBL, see the description of snd-vx222 module.
1968 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1971 The power-management is supported.
1976 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1978 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1979 1 (auto-detect for YMF744/754 only)
1980 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1981 1 (auto-detect for YMF744/754 only)
1982 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1984 rear_switch - enable shared rear/line-in switch (bool)
1986 This module supports autoprobe and multiple chips.
1988 The power-management is supported.
1990 Module snd-pdaudiocf
1991 --------------------
1993 Module for Sound Core PDAudioCF sound card.
1995 The power-management is supported.
2001 The ac97_quirk option is used to enable/override the workaround for
2002 specific devices on drivers for on-board AC'97 controllers like
2003 snd-intel8x0. Some hardware have swapped output pins between Master
2004 and Headphone, or Surround (thanks to confusion of AC'97
2005 specifications from version to version :-)
2007 The driver provides the auto-detection of known problematic devices,
2008 but some might be unknown or wrongly detected. In such a case, pass
2009 the proper value with this option.
2011 The following strings are accepted:
2012 - default Don't override the default setting
2013 - none Disable the quirk
2014 - hp_only Bind Master and Headphone controls as a single control
2015 - swap_hp Swap headphone and master controls
2016 - swap_surround Swap master and surround controls
2017 - ad_sharing For AD1985, turn on OMS bit and use headphone
2018 - alc_jack For ALC65x, turn on the jack sense mode
2019 - inv_eapd Inverted EAPD implementation
2020 - mute_led Bind EAPD bit for turning on/off mute LED
2022 For backward compatibility, the corresponding integer value -1, 0,
2023 ... are accepted, too.
2025 For example, if "Master" volume control has no effect on your device
2026 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2029 Configuring Non-ISAPNP Cards
2030 ============================
2032 When the kernel is configured with ISA-PnP support, the modules
2033 supporting the isapnp cards will have module options "isapnp".
2034 If this option is set, *only* the ISA-PnP devices will be probed.
2035 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2036 together with the proper i/o and irq configuration.
2038 When the kernel is configured without ISA-PnP support, isapnp option
2039 will be not built in.
2042 Module Autoloading Support
2043 ==========================
2045 The ALSA drivers can be loaded automatically on demand by defining
2046 module aliases. The string 'snd-card-%1' is requested for ALSA native
2047 devices where %i is sound card number from zero to seven.
2049 To auto-load an ALSA driver for OSS services, define the string
2050 'sound-slot-%i' where %i means the slot number for OSS, which
2051 corresponds to the card index of ALSA. Usually, define this
2052 as the same card module.
2054 An example configuration for a single emu10k1 card is like below:
2055 ----- /etc/modprobe.conf
2056 alias snd-card-0 snd-emu10k1
2057 alias sound-slot-0 snd-emu10k1
2058 ----- /etc/modprobe.conf
2060 The available number of auto-loaded sound cards depends on the module
2061 option "cards_limit" of snd module. As default it's set to 1.
2062 To enable the auto-loading of multiple cards, specify the number of
2063 sound cards in that option.
2065 When multiple cards are available, it'd better to specify the index
2066 number for each card via module option, too, so that the order of
2067 cards is kept consistent.
2069 An example configuration for two sound cards is like below:
2071 ----- /etc/modprobe.conf
2073 options snd cards_limit=2
2074 alias snd-card-0 snd-interwave
2075 alias snd-card-1 snd-ens1371
2076 options snd-interwave index=0
2077 options snd-ens1371 index=1
2079 alias sound-slot-0 snd-interwave
2080 alias sound-slot-1 snd-ens1371
2081 ----- /etc/modprobe.conf
2083 In this example, the interwave card is always loaded as the first card
2084 (index 0) and ens1371 as the second (index 1).
2086 Alternative (and new) way to fixate the slot assignment is to use
2087 "slots" option of snd module. In the case above, specify like the
2090 options snd slots=snd-interwave,snd-ens1371
2092 Then, the first slot (#0) is reserved for snd-interwave driver, and
2093 the second (#1) for snd-ens1371. You can omit index option in each
2094 driver if slots option is used (although you can still have them at
2095 the same time as long as they don't conflict).
2097 The slots option is especially useful for avoiding the possible
2098 hot-plugging and the resultant slot conflict. For example, in the
2099 case above again, the first two slots are already reserved. If any
2100 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2101 snd-ens1371, it will be assigned to the third or later slot.
2103 When a module name is given with '!', the slot will be given for any
2104 modules but that name. For example, "slots=!snd-pcsp" will reserve
2105 the first slot for any modules but snd-pcsp.
2108 ALSA PCM devices to OSS devices mapping
2109 =======================================
2111 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2112 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2113 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2114 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2115 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2116 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2117 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2118 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2119 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2121 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2122 sound card number and second means device number. The ALSA devices
2123 have either 'c' or 'p' suffix indicating the direction, capture and
2124 playback, respectively.
2126 Please note that the device mapping above may be varied via the module
2127 options of snd-pcm-oss module.
2130 Proc interfaces (/proc/asound)
2131 ==============================
2133 /proc/asound/card#/pcm#[cp]/oss
2134 -------------------------------
2135 String "erase" - erase all additional informations about OSS applications
2136 String "<app_name> <fragments> <fragment_size> [<options>]"
2138 <app_name> - name of application with (higher priority) or without path
2139 <fragments> - number of fragments or zero if auto
2140 <fragment_size> - size of fragment in bytes or zero if auto
2141 <options> - optional parameters
2142 - disable the application tries to open a pcm device for
2143 this channel but does not want to use it.
2144 (Cause a bug or mmap needs)
2145 It's good for Quake etc...
2146 - direct don't use plugins
2147 - block force block mode (rvplayer)
2148 - non-block force non-block mode
2149 - whole-frag write only whole fragments (optimization affecting
2151 - no-silence do not fill silence ahead to avoid clicks
2152 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2153 instead of filled blocks
2155 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2156 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2157 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2160 Early Buffer Allocation
2161 =======================
2163 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2164 sometimes it's too late to find such spaces when the driver module is
2165 actually loaded due to memory fragmentation. You can pre-allocate the
2166 PCM buffers by loading snd-page-alloc module and write commands to its
2167 proc file in prior, for example, in the early boot stage like
2168 /etc/init.d/*.local scripts.
2170 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2171 usage of page allocation. In writing, you can send the following
2172 commands to the snd-page-alloc driver:
2174 - add VENDOR DEVICE MASK SIZE BUFFERS
2176 VENDOR and DEVICE are PCI vendor and device IDs. They take
2177 integer numbers (0x prefix is needed for the hex).
2178 MASK is the PCI DMA mask. Pass 0 if not restricted.
2179 SIZE is the size of each buffer to allocate. You can pass
2180 k and m suffix for KB and MB. The max number is 16MB.
2181 BUFFERS is the number of buffers to allocate. It must be greater
2182 than 0. The max number is 4.
2186 This will erase the all pre-allocated buffers which are not in
2193 ALSA project homepage
2194 http://www.alsa-project.org
2197 http://bugzilla.kernel.org/
2200 mailto:alsa-devel@alsa-project.org
2203 http://www.alsa-project.org/alsa-info.sh
git.openpandora.org / pandora-kernel.git / blob