2 Advanced Linux Sound Architecture - Driver
3 ==========================================
10 To enable ALSA support you need at least to build the kernel with
11 primary sound card support (CONFIG_SOUND). Since ALSA can emulate OSS,
12 you don't have to choose any of the OSS modules.
14 Enable "OSS API emulation" (CONFIG_SND_OSSEMUL) and both OSS mixer and
15 PCM supports if you want to run OSS applications with ALSA.
17 If you want to support the WaveTable functionality on cards such as
18 SB Live! then you need to enable "Sequencer support"
19 (CONFIG_SND_SEQUENCER).
21 To make ALSA debug messages more verbose, enable the "Verbose printk"
22 and "Debug" options. To check for memory leaks, turn on "Debug memory"
23 too. "Debug detection" will add checks for the detection of cards.
25 Please note that all the ALSA ISA drivers support the Linux isapnp API
26 (if the card supports ISA PnP). You don't need to configure the cards
33 This depends on your distribution, but normally you use the /dev/MAKEDEV
34 script to create the necessary device nodes. On some systems you use a
35 script named 'snddevices'.
41 The user can load modules with options. If the module supports more than
42 one card and you have more than one card of the same type then you can
43 specify multiple values for the option separated by commas.
45 Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
50 The core ALSA module. It is used by all ALSA card drivers.
51 It takes the following options which have global effects.
53 major - major number for sound driver
56 - limiting card index for auto-loading (1-8)
58 - For auto-loading more than one card, specify this
59 option together with snd-card-X aliases.
60 slots - Reserve the slot index for the given driver.
61 This option takes multiple strings.
62 See "Module Autoloading Support" section for details.
63 debug - Specifies the debug message level
64 (0 = disable debug prints, 1 = normal debug messages,
65 2 = verbose debug messages)
66 This option appears only when CONFIG_SND_DEBUG=y.
67 This option can be dynamically changed via sysfs
68 /sys/modules/snd/parameters/debug file.
73 The PCM OSS emulation module.
74 This module takes options which change the mapping of devices.
76 dsp_map - PCM device number maps assigned to the 1st OSS device.
78 adsp_map - PCM device number maps assigned to the 2st OSS device.
81 - Don't block opening busy PCM devices. Default: 1
83 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
84 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
85 to PCM #0 of the card #0.
86 For changing the second or later card, specify the option with
87 commas, such like "dsp_map=0,1".
89 nonblock_open option is used to change the behavior of the PCM
90 regarding opening the device. When this option is non-zero,
91 opening a busy OSS PCM device won't be blocked but return
92 immediately with EAGAIN (just like O_NONBLOCK flag).
97 This module takes options which change the mapping of devices.
98 similar to those of the snd-pcm-oss module.
100 midi_map - MIDI device number maps assigned to the 1st OSS device.
102 amidi_map - MIDI device number maps assigned to the 2st OSS device.
105 Common parameters for top sound card modules
106 --------------------------------------------
108 Each of top level sound card module takes the following options.
110 index - index (slot #) of sound card
111 - Values: 0 through 31 or negative
112 - If nonnegative, assign that index number
113 - if negative, interpret as a bitmask of permissible
114 indices; the first free permitted index is assigned
116 id - card ID (identifier or name)
117 - Can be up to 15 characters long
118 - Default: the card type
119 - A directory by this name is created under /proc/asound/
120 containing information about the card
121 - This ID can be used instead of the index number in
124 - Default: enabled, for PCI and ISA PnP cards
129 Module for AdLib FM cards.
131 port - port # for OPL chip
133 This module supports multiple cards. It does not support autoprobe, so
134 the port must be specified. For actual AdLib FM cards it will be 0x388.
135 Note that this card does not have PCM support and no mixer; only FM
138 Make sure you have "sbiload" from the alsa-tools package available and,
139 after loading the module, find out the assigned ALSA sequencer port
140 number through "sbiload -l". Example output:
142 Port Client name Port name
143 64:0 OPL2 FM synth OPL2 FM Port
145 Load the std.sb and drums.sb patches also supplied by sbiload:
147 sbiload -p 64:0 std.sb drums.sb
149 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
150 instead. To have the card produce sound, use aplaymidi from alsa-utils:
152 aplaymidi -p 64:0 foo.mid
157 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
159 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
161 This module supports multiple cards, autoprobe and PnP.
166 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
168 port - port # for AD1848 chip
169 irq - IRQ # for AD1848 chip
170 dma1 - DMA # for AD1848 chip (0,1,3)
172 This module supports multiple cards. It does not support autoprobe
173 thus main port must be specified!!! Other ports are optional.
175 The power-management is supported.
180 Module for Analog Devices AD1889 chips.
182 ac97_quirk - AC'97 workaround for strange hardware
183 See the description of intel8x0 module for details.
185 This module supports multiple cards.
190 Module for ALi M5451 PCI chip.
192 pcm_channels - Number of hardware channels assigned for PCM
193 spdif - Support SPDIF I/O
196 This module supports one chip and autoprobe.
198 The power-management is supported.
203 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
205 This module supports multiple cards, autoprobe and PnP.
207 The power-management is supported.
212 Module for Avance Logic ALS300 and ALS300+
214 This module supports multiple cards.
216 The power-management is supported.
221 Module for sound cards based on Avance Logic ALS4000 PCI chip.
223 joystick_port - port # for legacy joystick support.
224 0 = disabled (default), 1 = auto-detect
226 This module supports multiple cards, autoprobe and PnP.
228 The power-management is supported.
233 Module for ATI IXP 150/200/250/400 AC97 controllers.
235 ac97_clock - AC'97 clock (default = 48000)
236 ac97_quirk - AC'97 workaround for strange hardware
237 See "AC97 Quirk Option" section below.
238 ac97_codec - Workaround to specify which AC'97 codec
239 instead of probing. If this works for you
240 file a bug with your `lspci -vn` output.
242 -1 -- Default behavior.
243 0-2 -- Use the specified codec.
244 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
246 This module supports one card and autoprobe.
248 ATI IXP has two different methods to control SPDIF output. One is
249 over AC-link and another is over the "direct" SPDIF output. The
250 implementation depends on the motherboard, and you'll need to
251 choose the correct one via spdif_aclink module option.
253 The power-management is supported.
255 Module snd-atiixp-modem
256 -----------------------
258 Module for ATI IXP 150/200/250 AC97 modem controllers.
260 This module supports one card and autoprobe.
262 Note: The default index value of this module is -2, i.e. the first
265 The power-management is supported.
267 Module snd-au8810, snd-au8820, snd-au8830
268 -----------------------------------------
270 Module for Aureal Vortex, Vortex2 and Advantage device.
272 pcifix - Control PCI workarounds
273 0 = Disable all workarounds
274 1 = Force the PCI latency of the Aureal card to 0xff
275 2 = Force the Extend PCI#2 Internal Master for Efficient
276 Handling of Dummy Requests on the VIA KT133 AGP Bridge
277 3 = Force both settings
278 255 = Autodetect what is required (default)
280 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
281 EQ, mpu401, gameport. A3D and wavetable support are still in development.
282 Development and reverse engineering work is being coordinated at
283 http://savannah.nongnu.org/projects/openvortex/
284 SPDIF output has a copy of the AC97 codec output, unless you use the
285 "spdif" pcm device, which allows raw data passthru.
286 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
289 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
290 control correctly. If you have problems regarding this, try
291 another ALSA compliant mixer (alsamixer works).
296 Module for Audiowerk2 sound card
298 This module supports multiple cards.
303 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
305 This module supports multiple cards, PnP and autoprobe.
307 The power-management is supported.
312 Module for sound cards based on Aztech AZF3328 PCI chip.
314 joystick - Enable joystick (default off)
316 This module supports multiple cards.
321 Module for video cards based on Bt87x chips.
323 digital_rate - Override the default digital rate (Hz)
324 load_all - Load the driver even if the card model isn't known
326 This module supports multiple cards.
328 Note: The default index value of this module is -2, i.e. the first
334 Module for Creative Audigy LS and SB Live 24bit
336 This module supports multiple cards.
342 Module for sound cards based on C-Media CMI8330 ISA chips.
344 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
346 with isapnp=0, the following options are available:
348 wssport - port # for CMI8330 chip (WSS)
349 wssirq - IRQ # for CMI8330 chip (WSS)
350 wssdma - first DMA # for CMI8330 chip (WSS)
351 sbport - port # for CMI8330 chip (SB16)
352 sbirq - IRQ # for CMI8330 chip (SB16)
353 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
354 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
355 fmport - (optional) OPL3 I/O port
356 mpuport - (optional) MPU401 I/O port
357 mpuirq - (optional) MPU401 irq #
359 This module supports multiple cards and autoprobe.
361 The power-management is supported.
366 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
368 mpu_port - port address of MIDI interface (8338 only):
369 0x300,0x310,0x320,0x330 = legacy port,
370 0 = disable (default)
371 fm_port - port address of OPL-3 FM synthesizer (8x38 only):
373 1 = integrated PCI port (default on 8738),
375 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
377 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
379 This module supports autoprobe and multiple cards.
381 The power-management is supported.
386 Module for sound cards based on CS4231 ISA chips.
388 port - port # for CS4231 chip
389 mpu_port - port # for MPU-401 UART (optional), -1 = disable
390 irq - IRQ # for CS4231 chip
391 mpu_irq - IRQ # for MPU-401 UART
392 dma1 - first DMA # for CS4231 chip
393 dma2 - second DMA # for CS4231 chip
395 This module supports multiple cards. This module does not support autoprobe
396 thus main port must be specified!!! Other ports are optional.
398 The power-management is supported.
403 Module for sound cards based on CS4232/CS4232A,
404 CS4235/CS4236/CS4236B/CS4237B/
405 CS4238B/CS4239 ISA chips.
407 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
409 with isapnp=0, the following options are available:
411 port - port # for CS4236 chip (PnP setup - 0x534)
412 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
413 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
414 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
415 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
416 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
417 dma1 - first DMA # for CS4236 chip (0,1,3)
418 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
420 This module supports multiple cards. This module does not support autoprobe
421 (if ISA PnP is not used) thus main port and control port must be
422 specified!!! Other ports are optional.
424 The power-management is supported.
426 This module is aliased as snd-cs4232 since it provides the old
427 snd-cs4232 functionality, too.
432 Module for Cirrus Logic CS4281 soundchip.
434 dual_codec - Secondary codec ID (0 = disable, default)
436 This module supports multiple cards.
438 The power-management is supported.
443 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
444 CS4624/CS4630/CS4280 PCI chips.
446 external_amp - Force to enable external amplifier.
447 thinkpad - Force to enable Thinkpad's CLKRUN control.
448 mmap_valid - Support OSS mmap mode (default = 0).
450 This module supports multiple cards and autoprobe.
451 Usually external amp and CLKRUN controls are detected automatically
452 from PCI sub vendor/device ids. If they don't work, give the options
455 The power-management is supported.
460 Module for Cyrix/NatSemi Geode 5530 chip.
462 Module snd-cs5535audio
463 ----------------------
465 Module for multifunction CS5535 companion PCI device
467 The power-management is supported.
472 Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
473 * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
474 * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
475 * Creative Sound Blaster X-Fi Titanium Professional Audio
476 * Creative Sound Blaster X-Fi Titanium
477 * Creative Sound Blaster X-Fi Elite Pro
478 * Creative Sound Blaster X-Fi Platinum
479 * Creative Sound Blaster X-Fi Fatal1ty
480 * Creative Sound Blaster X-Fi XtremeGamer
481 * Creative Sound Blaster X-Fi XtremeMusic
483 reference_rate - reference sample rate, 44100 or 48000 (default)
484 multiple - multiple to ref. sample rate, 1 or 2 (default)
486 This module supports multiple cards.
491 Module for Echoaudio Darla20
493 This module supports multiple cards.
494 The driver requires the firmware loader support on kernel.
499 Module for Echoaudio Darla24
501 This module supports multiple cards.
502 The driver requires the firmware loader support on kernel.
507 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
510 This module supports multiple cards. This module is enabled only with
513 The power-management is supported.
518 Module for the dummy sound card. This "card" doesn't do any output
519 or input, but you may use this module for any application which
520 requires a sound card (like RealPlayer).
522 The power-management is supported.
527 Module for Echoaudio 3G cards (Gina3G/Layla3G)
529 This module supports multiple cards.
530 The driver requires the firmware loader support on kernel.
535 Module for EMU10K1/EMU10k2 based PCI sound cards.
536 * Sound Blaster Live!
537 * Sound Blaster PCI 512
538 * Emu APS (partially supported)
539 * Sound Blaster Audigy
541 extin - bitmap of available external inputs for FX8010 (see bellow)
542 extout - bitmap of available external outputs for FX8010 (see bellow)
543 seq_ports - allocated sequencer ports (4 by default)
544 max_synth_voices - limit of voices used for wavetable (64 by default)
545 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
546 given in MB unit. Default value is 128.
547 enable_ir - enable IR
549 This module supports multiple cards and autoprobe.
551 Input & Output configurations [extin/extout]
552 * Creative Card wo/Digital out [0x0003/0x1f03]
553 * Creative Card w/Digital out [0x0003/0x1f0f]
554 * Creative Card w/Digital CD in [0x000f/0x1f0f]
555 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
556 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
557 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
558 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
559 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
560 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
561 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
562 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
563 * Creative Card all ins and outs [0x3fff/0x7fff]
565 The power-management is supported.
570 Module for Creative Emu10k1X (SB Live Dell OEM version)
572 This module supports multiple cards.
577 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
578 * SoundBlaster PCI 64
579 * SoundBlaster PCI 128
581 joystick - Enable joystick (default off)
583 This module supports multiple cards and autoprobe.
585 The power-management is supported.
590 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
591 * SoundBlaster PCI 64
592 * SoundBlaster PCI 128
593 * SoundBlaster Vibra PCI
595 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
596 0 = disable (default), 1 = auto-detect
598 This module supports multiple cards and autoprobe.
600 The power-management is supported.
605 Module for sound cards based on ESS ES968 chip (PnP only).
607 This module supports multiple cards, PnP and autoprobe.
609 The power-management is supported.
614 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
616 port - port # for ES-1688 chip (0x220,0x240,0x260)
617 fm_port - port # for OPL3 (option; share the same port as default)
618 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
619 irq - IRQ # for ES-1688 chip (5,7,9,10)
620 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
621 dma8 - DMA # for ES-1688 chip (0,1,3)
623 This module supports multiple cards and autoprobe (without MPU-401 port).
628 Module for ESS AudioDrive ES-18xx sound cards.
630 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
632 with isapnp=0, the following options are available:
634 port - port # for ES-18xx chip (0x220,0x240,0x260)
635 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
636 fm_port - port # for FM (optional, not used)
637 irq - IRQ # for ES-18xx chip (5,7,9,10)
638 dma1 - first DMA # for ES-18xx chip (0,1,3)
639 dma2 - first DMA # for ES-18xx chip (0,1,3)
641 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
642 port if native ISA PnP routines are not used).
643 When dma2 is equal with dma1, the driver works as half-duplex.
645 The power-management is supported.
650 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
652 This module supports multiple cards and autoprobe.
654 The power-management is supported.
659 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
661 total_bufsize - total buffer size in kB (1-4096kB)
662 pcm_substreams_p - playback channels (1-8, default=2)
663 pcm_substreams_c - capture channels (1-8, default=0)
664 clock - clock (0 = auto-detection)
665 use_pm - support the power-management (0 = off, 1 = on,
667 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
668 joystick - enable joystick (default off)
670 This module supports multiple cards and autoprobe.
672 The power-management is supported.
677 Module for ForteMedia FM801 based PCI sound cards.
679 tea575x_tuner - Enable TEA575x tuner
680 - 1 = MediaForte 256-PCS
681 - 2 = MediaForte 256-PCPR
682 - 3 = MediaForte 64-PCR
683 - High 16-bits are video (radio) device number + 1
684 - example: 0x10002 (MediaForte 256-PCPR, device 1)
686 This module supports multiple cards and autoprobe.
688 The power-management is supported.
693 Module for Echoaudio Gina20
695 This module supports multiple cards.
696 The driver requires the firmware loader support on kernel.
701 Module for Echoaudio Gina24
703 This module supports multiple cards.
704 The driver requires the firmware loader support on kernel.
706 Module snd-gusclassic
707 ---------------------
709 Module for Gravis UltraSound Classic sound card.
711 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
712 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
713 dma1 - DMA # for GF1 chip (1,3,5,6,7)
714 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
715 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
716 voices - GF1 voices limit (14-32)
717 pcm_voices - reserved PCM voices
719 This module supports multiple cards and autoprobe.
721 Module snd-gusextreme
722 ---------------------
724 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
726 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
727 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
728 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
729 irq - IRQ # for ES-1688 chip (5,7,9,10)
730 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
731 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
732 dma8 - DMA # for ES-1688 chip (0,1,3)
733 dma1 - DMA # for GF1 chip (1,3,5,6,7)
734 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
735 voices - GF1 voices limit (14-32)
736 pcm_voices - reserved PCM voices
738 This module supports multiple cards and autoprobe (without MPU-401 port).
743 Module for Gravis UltraSound MAX sound card.
745 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
746 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
747 dma1 - DMA # for GF1 chip (1,3,5,6,7)
748 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
749 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
750 voices - GF1 voices limit (14-32)
751 pcm_voices - reserved PCM voices
753 This module supports multiple cards and autoprobe.
758 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
760 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
761 RV630, RV635, RV670, RV770,
765 [Multiple options for each card instance]
766 model - force the model name
767 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
768 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
769 When the bit 8 (0x100) is set, the lower 8 bits are used
770 as the "fixed" codec slots; i.e. the driver probes the
771 slots regardless what hardware reports back
772 probe_only - Only probing and no codec initialization (default=off);
773 Useful to check the initial codec status for debugging
774 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
775 Passing -1 will make the driver to choose the appropriate
776 value based on the controller chip.
778 [Single (global) options]
779 single_cmd - Use single immediate commands to communicate with
780 codecs (for debugging only)
781 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
782 power_save - Automatic power-saving timeout (in second, 0 =
784 power_save_controller - Reset HD-audio controller in power-saving mode
787 This module supports multiple cards and autoprobe.
789 See Documentation/sound/alsa/HD-Audio.txt for more details about
792 Each codec may have a model table for different configurations.
793 If your machine isn't listed there, the default (usually minimal)
794 configuration is set up. You can pass "model=<name>" option to
795 specify a certain model in such a case. There are different
796 models depending on the codec chip. The list of available models
797 is found in HD-Audio-Models.txt
799 The model name "genric" is treated as a special case. When this
800 model is given, the driver uses the generic codec parser without
801 "codec-patch". It's sometimes good for testing and debugging.
803 If the default configuration doesn't work and one of the above
804 matches with your device, report it together with alsa-info.sh
805 output (with --no-upload option) to kernel bugzilla or alsa-devel
806 ML (see the section "Links and Addresses").
808 power_save and power_save_controller options are for power-saving
809 mode. See powersave.txt for details.
811 Note 2: If you get click noises on output, try the module option
812 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
813 register value without FIFO size correction as the current
814 DMA pointer. position_fix=2 will make the driver to use
815 the position buffer instead of reading SD_LPIB register.
816 (Usually SD_LPIB register is more accurate than the
819 NB: If you get many "azx_get_response timeout" messages at
820 loading, it's likely a problem of interrupts (e.g. ACPI irq
821 routing). Try to boot with options like "pci=noacpi". Also, you
822 can try "single_cmd=1" module option. This will switch the
823 communication method between HDA controller and codecs to the
824 single immediate commands instead of CORB/RIRB. Basically, the
825 single command mode is provided only for BIOS, and you won't get
826 unsolicited events, too. But, at least, this works independently
827 from the irq. Remember this is a last resort, and should be
828 avoided as much as possible...
830 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
831 On some hardwares, you may need to add a proper probe_mask option
832 to avoid the "azx_get_response timeout" problem above, instead.
833 This occurs when the access to non-existing or non-working codec slot
834 (likely a modem one) causes a stall of the communication via HD-audio
835 bus. You can see which codec slots are probed by enabling
836 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
837 proc files. Then limit the slots to probe by probe_mask option.
838 For example, probe_mask=1 means to probe only the first slot, and
839 probe_mask=4 means only the third slot.
841 The power-management is supported.
846 Module for RME Hammerfall DSP audio interface(s)
848 This module supports multiple cards.
850 Note: The firmware data can be automatically loaded via hotplug
851 when CONFIG_FW_LOADER is set. Otherwise, you need to load
852 the firmware via hdsploader utility included in alsa-tools
854 The firmware data is found in alsa-firmware package.
856 Note: snd-page-alloc module does the job which snd-hammerfall-mem
857 module did formerly. It will allocate the buffers in advance
858 when any HDSP cards are found. To make the buffer
859 allocation sure, load snd-page-alloc module in the early
860 stage of boot sequence. See "Early Buffer Allocation"
866 Module for RME HDSP MADI board.
868 precise_ptr - Enable precise pointer, or disable.
869 line_outs_monitor - Send playback streams to analog outs by default.
870 enable_monitor - Enable Analog Out on Channel 63/64 by default.
872 See hdspm.txt for details.
877 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
879 This module supports autoprobe and multiple cards.
884 Module for Envy24 (ICE1712) based PCI sound cards.
885 * MidiMan M Audio Delta 1010
886 * MidiMan M Audio Delta 1010LT
887 * MidiMan M Audio Delta DiO 2496
888 * MidiMan M Audio Delta 66
889 * MidiMan M Audio Delta 44
890 * MidiMan M Audio Delta 410
891 * MidiMan M Audio Audiophile 2496
897 * Hoontech SoundTrack DSP 24
898 * Hoontech SoundTrack DSP 24 Value
899 * Hoontech SoundTrack DSP 24 Media 7.1
900 * Event Electronics, EZ8
902 * Lionstracs, Mediastaton
905 model - Use the given board model, one of the following:
906 delta1010, dio2496, delta66, delta44, audiophile, delta410,
907 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
908 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
909 phase88, mediastation
910 omni - Omni I/O support for MidiMan M-Audio Delta44/66
911 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
912 in msec resolution, default value is 500 (0.5 sec)
914 This module supports multiple cards and autoprobe. Note: The consumer part
915 is not used with all Envy24 based cards (for example in the MidiMan Delta
918 Note: The supported board is detected by reading EEPROM or PCI
919 SSID (if EEPROM isn't available). You can override the
920 model by passing "model" module option in case that the
921 driver isn't configured properly or you want to try another
927 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
928 * MidiMan M Audio Revolution 5.1
929 * MidiMan M Audio Revolution 7.1
930 * MidiMan M Audio Audiophile 192
932 * TerraTec Aureon 5.1 Sky
933 * TerraTec Aureon 7.1 Space
934 * TerraTec Aureon 7.1 Universe
937 * AudioTrak Prodigy 7.1
938 * AudioTrak Prodigy 7.1 LT
939 * AudioTrak Prodigy 7.1 XT
940 * AudioTrak Prodigy 7.1 HIFI
941 * AudioTrak Prodigy 7.1 HD2
942 * AudioTrak Prodigy 192
944 * Albatron K8X800 Pro II
954 * Hercules Fortissimo IV
955 * EGO-SYS WaveTerminal 192M
957 model - Use the given board model, one of the following:
958 revo51, revo71, amp2000, prodigy71, prodigy71lt,
959 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
960 juli, aureon51, aureon71, universe, ap192, k8x800,
961 phase22, phase28, ms300, av710, se200pci, se90pci,
962 fortissimo4, sn25p, WT192M, maya44
964 This module supports multiple cards and autoprobe.
966 Note: The supported board is detected by reading EEPROM or PCI
967 SSID (if EEPROM isn't available). You can override the
968 model by passing "model" module option in case that the
969 driver isn't configured properly or you want to try another
975 Module for Echoaudio Indigo
977 This module supports multiple cards.
978 The driver requires the firmware loader support on kernel.
983 Module for Echoaudio Indigo DJ
985 This module supports multiple cards.
986 The driver requires the firmware loader support on kernel.
991 Module for Echoaudio Indigo IO
993 This module supports multiple cards.
994 The driver requires the firmware loader support on kernel.
999 Module for AC'97 motherboards from Intel and compatibles.
1000 * Intel i810/810E, i815, i820, i830, i84x, MX440
1001 ICH5, ICH6, ICH7, 6300ESB, ESB2
1002 * SiS 7012 (SiS 735)
1003 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1005 * AMD AMD768, AMD8111
1008 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1009 ac97_quirk - AC'97 workaround for strange hardware
1010 See "AC97 Quirk Option" section below.
1011 buggy_irq - Enable workaround for buggy interrupts on some
1012 motherboards (default yes on nForce chips,
1014 buggy_semaphore - Enable workaround for hardwares with buggy
1015 semaphores (e.g. on some ASUS laptops)
1017 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1018 from the controller chip
1019 (0 = off, 1 = on, -1 = default)
1021 This module supports one chip and autoprobe.
1023 Note: the latest driver supports auto-detection of chip clock.
1024 if you still encounter too fast playback, specify the clock
1025 explicitly via the module option "ac97_clock=41194".
1027 Joystick/MIDI ports are not supported by this driver. If your
1028 motherboard has these devices, use the ns558 or snd-mpu401
1029 modules, respectively.
1031 The power-management is supported.
1033 Module snd-intel8x0m
1034 --------------------
1036 Module for Intel ICH (i8x0) chipset MC97 modems.
1037 * Intel i810/810E, i815, i820, i830, i84x, MX440
1039 * SiS 7013 (SiS 735)
1040 * NVidia NForce, NForce2, NForce2s, NForce3
1044 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1046 This module supports one card and autoprobe.
1048 Note: The default index value of this module is -2, i.e. the first
1051 The power-management is supported.
1053 Module snd-interwave
1054 --------------------
1056 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1057 and other sound cards based on AMD InterWave (tm) chip.
1059 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1060 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1061 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1062 effect - 1 = InterWave effects enable (default 0);
1064 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1066 with isapnp=0, the following options are available:
1068 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1069 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1070 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1071 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1073 This module supports multiple cards, autoprobe and ISA PnP.
1075 Module snd-interwave-stb
1076 ------------------------
1078 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1079 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1080 circuit for extended control of bass, treble and master volume.
1082 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1083 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1084 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1085 effect - 1 = InterWave effects enable (default 0);
1087 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1089 with isapnp=0, the following options are available:
1091 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1092 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1093 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1094 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1095 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1097 This module supports multiple cards, autoprobe and ISA PnP.
1102 Module for Korg 1212 IO PCI card
1104 This module supports multiple cards.
1109 Module for Echoaudio Layla20
1111 This module supports multiple cards.
1112 The driver requires the firmware loader support on kernel.
1117 Module for Echoaudio Layla24
1119 This module supports multiple cards.
1120 The driver requires the firmware loader support on kernel.
1125 Module for Digigram LX6464ES boards
1127 This module supports multiple cards.
1132 Module for Allegro/Maestro3 chips
1134 external_amp - enable external amp (enabled by default)
1135 amp_gpio - GPIO pin number for external amp (0-15) or
1136 -1 for default pin (8 for allegro, 1 for
1139 This module supports autoprobe and multiple chips.
1141 Note: the binding of amplifier is dependent on hardware.
1142 If there is no sound even though all channels are unmuted, try to
1143 specify other gpio connection via amp_gpio option.
1144 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1147 The power-management is supported.
1152 Module for Echoaudio Mia
1154 This module supports multiple cards.
1155 The driver requires the firmware loader support on kernel.
1160 Module for Miro soundcards: miroSOUND PCM 1 pro,
1162 miroSOUND PCM 20 Radio.
1164 port - Port # (0x530,0x604,0xe80,0xf40)
1165 irq - IRQ # (5,7,9,10,11)
1166 dma1 - 1st dma # (0,1,3)
1167 dma2 - 2nd dma # (0,1)
1168 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1169 mpu_irq - MPU-401 irq # (5,7,9,10)
1170 fm_port - FM Port # (0x388)
1171 wss - enable WSS mode
1172 ide - enable onboard ide support
1177 Module for Digigram miXart8 sound cards.
1179 This module supports multiple cards.
1180 Note: One miXart8 board will be represented as 4 alsa cards.
1181 See MIXART.txt for details.
1183 When the driver is compiled as a module and the hotplug firmware
1184 is supported, the firmware data is loaded via hotplug automatically.
1185 Install the necessary firmware files in alsa-firmware package.
1186 When no hotplug fw loader is available, you need to load the
1187 firmware via mixartloader utility in alsa-tools package.
1192 Module for Echoaudio Mona
1194 This module supports multiple cards.
1195 The driver requires the firmware loader support on kernel.
1200 Module for MPU-401 UART devices.
1202 port - port number or -1 (disable)
1203 irq - IRQ number or -1 (disable)
1204 pnp - PnP detection - 0 = disable, 1 = enable (default)
1206 This module supports multiple devices and PnP.
1208 Module snd-msnd-classic
1209 -----------------------
1211 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1214 io - Port # for msnd-classic card
1215 irq - IRQ # for msnd-classic card
1216 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1218 write_ndelay - enable write ndelay (default = 1)
1219 calibrate_signal - calibrate signal (default = 0)
1220 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1221 digital - Digital daughterboard present (default = 0)
1222 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1223 reset - Reset all devices
1224 mpu_io - MPU401 I/O port
1225 mpu_irq - MPU401 irq#
1226 ide_io0 - IDE port #0
1227 ide_io1 - IDE port #1
1229 joystick_io - Joystick I/O port
1231 The driver requires firmware files "turtlebeach/msndinit.bin" and
1232 "turtlebeach/msndperm.bin" in the proper firmware directory.
1234 See Documentation/sound/oss/MultiSound for important information
1235 about this driver. Note that it has been discontinued, but the
1236 Voyetra Turtle Beach knowledge base entry for it is still available
1238 http://www.turtlebeach.com/site/kb_ftp/790.asp
1240 Module snd-msnd-pinnacle
1241 ------------------------
1243 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1245 io - Port # for pinnacle/fiji card
1246 irq - IRQ # for pinnalce/fiji card
1247 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1249 write_ndelay - enable write ndelay (default = 1)
1250 calibrate_signal - calibrate signal (default = 0)
1251 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1253 The driver requires firmware files "turtlebeach/pndspini.bin" and
1254 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1259 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1262 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1263 irq - IRQ # for MTPAV (7,5, default=7)
1264 hwports - number of supported hardware ports, default=8.
1266 Module supports only 1 card. This module has no enable option.
1271 Module for Ego Systems (ESI) Miditerminal 4140
1273 This module supports multiple devices.
1274 Requires parport (CONFIG_PARPORT).
1279 Module for NeoMagic NM256AV/ZX chips
1281 playback_bufsize - max playback frame size in kB (4-128kB)
1282 capture_bufsize - max capture frame size in kB (4-128kB)
1283 force_ac97 - 0 or 1 (disabled by default)
1284 buffer_top - specify buffer top address
1285 use_cache - 0 or 1 (disabled by default)
1286 vaio_hack - alias buffer_top=0x25a800
1287 reset_workaround - enable AC97 RESET workaround for some laptops
1288 reset_workaround2 - enable extended AC97 RESET workaround for some
1291 This module supports one chip and autoprobe.
1293 The power-management is supported.
1295 Note: on some notebooks the buffer address cannot be detected
1296 automatically, or causes hang-up during initialization.
1297 In such a case, specify the buffer top address explicitly via
1298 the buffer_top option.
1300 Sony F250: buffer_top=0x25a800
1301 Sony F270: buffer_top=0x272800
1302 The driver supports only ac97 codec. It's possible to force
1303 to initialize/use ac97 although it's not detected. In such a
1304 case, use force_ac97=1 option - but *NO* guarantee whether it
1307 Note: The NM256 chip can be linked internally with non-AC97
1308 codecs. This driver supports only the AC97 codec, and won't work
1309 with machines with other (most likely CS423x or OPL3SAx) chips,
1310 even though the device is detected in lspci. In such a case, try
1311 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1312 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1313 and proper hardware parameters in the case without ISA PnP.
1315 Note: some laptops need a workaround for AC97 RESET. For the
1316 known hardware like Dell Latitude LS and Sony PCG-F305, this
1317 workaround is enabled automatically. For other laptops with a
1318 hard freeze, you can try reset_workaround=1 option.
1320 Note: Dell Latitude CSx laptops have another problem regarding
1321 AC97 RESET. On these laptops, reset_workaround2 option is
1322 turned on as default. This option is worth to try if the
1323 previous reset_workaround option doesn't help.
1325 Note: This driver is really crappy. It's a porting from the
1326 OSS driver, which is a result of black-magic reverse engineering.
1327 The detection of codec will fail if the driver is loaded *after*
1328 X-server as described above. You might be able to force to load
1329 the module, but it may result in hang-up. Hence, make sure that
1330 you load this module *before* X if you encounter this kind of
1336 Module for Yamaha OPL3-SA2/SA3 sound cards.
1338 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1340 with isapnp=0, the following options are available:
1342 port - control port # for OPL3-SA chip (0x370)
1343 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1344 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1345 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1346 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1347 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1348 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1349 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1351 This module supports multiple cards and ISA PnP. It does not support
1352 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1354 The power-management is supported.
1356 Module snd-opti92x-ad1848
1357 -------------------------
1359 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1360 Module works with OAK Mozart cards as well.
1362 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1364 with isapnp=0, the following options are available:
1366 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1367 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1368 fm_port - port # for OPL3 device (0x388)
1369 irq - IRQ # for WSS chip (5,7,9,10,11)
1370 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1371 dma1 - first DMA # for WSS chip (0,1,3)
1373 This module supports only one card, autoprobe and PnP.
1375 Module snd-opti92x-cs4231
1376 -------------------------
1378 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
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)
1390 dma2 - second DMA # for WSS chip (0,1,3)
1392 This module supports only one card, autoprobe and PnP.
1397 Module for sound cards based on OPTi 82c93x chips.
1399 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1401 with isapnp=0, the following options are available:
1403 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1404 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1405 fm_port - port # for OPL3 device (0x388)
1406 irq - IRQ # for WSS chip (5,7,9,10,11)
1407 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1408 dma1 - first DMA # for WSS chip (0,1,3)
1409 dma2 - second DMA # for WSS chip (0,1,3)
1411 This module supports only one card, autoprobe and PnP.
1416 Module for sound cards based on the C-Media CMI8788 chip:
1418 * AuzenTech X-Meridian
1420 * Club3D Theatron DTS
1421 * HT-Omega Claro (plus)
1422 * HT-Omega Claro halo (XT)
1423 * Razer Barracuda AC-1
1426 This module supports autoprobe and multiple cards.
1431 Module for internal PC-Speaker.
1433 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1435 This module supports system beeps, some kind of PCM playback and
1436 even a few mixer controls.
1441 Module for Digigram PCXHR boards
1443 This module supports multiple cards.
1445 Module snd-portman2x4
1446 ---------------------
1448 Module for Midiman Portman 2x4 parallel port MIDI interface
1450 This module supports multiple cards.
1452 Module snd-powermac (on ppc only)
1453 ---------------------------------
1455 Module for PowerMac, iMac and iBook on-board soundchips
1457 enable_beep - enable beep using PCM (enabled as default)
1459 Module supports autoprobe a chip.
1461 Note: the driver may have problems regarding endianess.
1463 The power-management is supported.
1465 Module snd-pxa2xx-ac97 (on arm only)
1466 ------------------------------------
1468 Module for AC97 driver for the Intel PXA2xx chip
1470 For ARM architecture only.
1472 The power-management is supported.
1477 Module for Conexant Riptide chip
1479 joystick_port - Joystick port # (default: 0x200)
1480 mpu_port - MPU401 port # (default: 0x330)
1481 opl3_port - OPL3 port # (default: 0x388)
1483 This module supports multiple cards.
1484 The driver requires the firmware loader support on kernel.
1485 You need to install the firmware file "riptide.hex" to the standard
1486 firmware path (e.g. /lib/firmware).
1491 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1492 Prodif96 and Prodif Gold) sound cards.
1494 This module supports multiple cards.
1499 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1501 This module supports multiple cards.
1506 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1508 precise_ptr - Enable precise pointer (doesn't work reliably).
1511 This module supports multiple cards.
1513 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1514 module did formerly. It will allocate the buffers in advance
1515 when any RME9652 cards are found. To make the buffer
1516 allocation sure, load snd-page-alloc module in the early
1517 stage of boot sequence. See "Early Buffer Allocation"
1520 Module snd-sa11xx-uda1341 (on arm only)
1521 ---------------------------------------
1523 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1525 Module supports only one card.
1526 Module has no enable and index options.
1528 The power-management is supported.
1533 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1537 port - port # for SB DSP chip (0x220,0x240,0x260)
1538 irq - IRQ # for SB DSP chip (5,7,9,10)
1539 dma8 - DMA # for SB DSP chip (1,3)
1541 This module supports multiple cards and autoprobe.
1543 The power-management is supported.
1545 Module snd-sb16 and snd-sbawe
1546 -----------------------------
1548 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1549 SoundBlaster AWE 32 (PnP),
1550 SoundBlaster AWE 64 PnP
1552 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1553 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1554 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1556 with isapnp=0, the following options are available:
1558 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1559 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1560 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1561 (snd-sbawe module only)
1562 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1563 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1564 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1566 This module supports multiple cards, autoprobe and ISA PnP.
1568 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1569 disable 16bit DMA with dma16 = -1 module parameter.
1570 Also, all Sound Blaster 16 type cards can operate in 16-bit
1571 half duplex mode through 8-bit DMA channel by disabling their
1574 The power-management is supported.
1579 Module for Gallant SC-6000 soundcard and later models: SC-6600
1582 port - Port # (0x220 or 0x240)
1583 mss_port - MSS Port # (0x530 or 0xe80)
1584 irq - IRQ # (5,7,9,10,11)
1585 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1587 joystick - Enable gameport - 0 = disable (default), 1 = enable
1589 This module supports multiple cards.
1591 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1596 Module for Aztech Sound Galaxy sound card.
1598 sbport - Port # for SB16 interface (0x220,0x240)
1599 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1600 irq - IRQ # (7,9,10,11)
1603 This module supports multiple cards.
1605 The power-management is supported.
1610 Module for ENSONIQ SoundScape PnP cards.
1612 port - Port # (PnP setup)
1613 wss_port - WSS Port # (PnP setup)
1614 irq - IRQ # (PnP setup)
1615 mpu_irq - MPU-401 IRQ # (PnP setup)
1616 dma - DMA # (PnP setup)
1617 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1619 This module supports multiple cards. ISA PnP must be enabled.
1620 You need sscape_ctl tool in alsa-tools package for loading
1623 Module snd-sun-amd7930 (on sparc only)
1624 --------------------------------------
1626 Module for AMD7930 sound chips found on Sparcs.
1628 This module supports multiple cards.
1630 Module snd-sun-cs4231 (on sparc only)
1631 -------------------------------------
1633 Module for CS4231 sound chips found on Sparcs.
1635 This module supports multiple cards.
1637 Module snd-sun-dbri (on sparc only)
1638 -----------------------------------
1640 Module for DBRI sound chips found on Sparcs.
1642 This module supports multiple cards.
1644 Module snd-wavefront
1645 --------------------
1647 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1649 use_cs4232_midi - Use CS4232 MPU-401 interface
1650 (inaccessibly located inside your computer)
1651 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1653 with isapnp=0, the following options are available:
1655 cs4232_pcm_port - Port # for CS4232 PCM interface.
1656 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1657 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1658 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1659 ics2115_port - Port # for ICS2115
1660 ics2115_irq - IRQ # for ICS2115
1661 fm_port - FM OPL-3 Port #
1662 dma1 - DMA1 # for CS4232 PCM interface.
1663 dma2 - DMA2 # for CS4232 PCM interface.
1665 The below are options for wavefront_synth features:
1666 wf_raw - Assume that we need to boot the OS (default:no)
1667 If yes, then during driver loading, the state of the board is
1668 ignored, and we reset the board and load the firmware anyway.
1669 fx_raw - Assume that the FX process needs help (default:yes)
1670 If false, we'll leave the FX processor in whatever state it is
1671 when the driver is loaded. The default is to download the
1672 microprogram and associated coefficients to set it up for
1673 "default" operation, whatever that means.
1674 debug_default - Debug parameters for card initialization
1675 wait_usecs - How long to wait without sleeping, usecs
1677 This magic number seems to give pretty optimal throughput
1678 based on my limited experimentation.
1679 If you want to play around with it and find a better value, be
1680 my guest. Remember, the idea is to get a number that causes us
1681 to just busy wait for as many WaveFront commands as possible,
1682 without coming up with a number so large that we hog the whole
1684 Specifically, with this number, out of about 134,000 status
1685 waits, only about 250 result in a sleep.
1686 sleep_interval - How long to sleep when waiting for reply
1688 sleep_tries - How many times to try sleeping during a wait
1690 ospath - Pathname to processed ICS2115 OS firmware
1691 (default:wavefront.os)
1692 The path name of the ISC2115 OS firmware. In the recent
1693 version, it's handled via firmware loader framework, so it
1694 must be installed in the proper path, typically,
1696 reset_time - How long to wait for a reset to take effect
1698 ramcheck_time - How many seconds to wait for the RAM test
1700 osrun_time - How many seconds to wait for the ICS2115 OS
1703 This module supports multiple cards and ISA PnP.
1705 Note: the firmware file "wavefront.os" was located in the earlier
1706 version in /etc. Now it's loaded via firmware loader, and
1707 must be in the proper firmware path, such as /lib/firmware.
1708 Copy (or symlink) the file appropriately if you get an error
1709 regarding firmware downloading after upgrading the kernel.
1711 Module snd-sonicvibes
1712 ---------------------
1714 Module for S3 SonicVibes PCI sound cards.
1715 * PINE Schubert 32 PCI
1717 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1718 - SoundCard must have onboard SRAM for this.
1719 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1721 This module supports multiple cards and autoprobe.
1723 Module snd-serial-u16550
1724 ------------------------
1726 Module for UART16550A serial MIDI ports.
1728 port - port # for UART16550A chip
1729 irq - IRQ # for UART16550A chip, -1 = poll mode
1730 speed - speed in bauds (9600,19200,38400,57600,115200)
1732 base - base for divisor in bauds (57600,115200,230400,460800)
1734 outs - number of MIDI ports in a serial port (1-4)
1736 adaptor - Type of adaptor.
1737 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1738 3 = MS-124W M/B, 4 = Generic
1740 This module supports multiple cards. This module does not support autoprobe
1741 thus the main port must be specified!!! Other options are optional.
1746 Module for Trident 4DWave DX/NX sound cards.
1747 * Best Union Miss Melody 4DWave PCI
1749 * Warpspeed ONSpeed 4DWave PCI
1752 * CHIC True Sound 4Dwave
1753 * Shark Predator4D-PCI
1754 * Jaton SonicWave 4D
1755 * SiS SI7018 PCI Audio
1756 * Hoontech SoundTrack Digital 4DWave NX
1758 pcm_channels - max channels (voices) reserved for PCM
1759 wavetable_size - max wavetable size in kB (4-?kb)
1761 This module supports multiple cards and autoprobe.
1763 The power-management is supported.
1765 Module snd-usb-audio
1766 --------------------
1768 Module for USB audio and USB MIDI devices.
1770 vid - Vendor ID for the device (optional)
1771 pid - Product ID for the device (optional)
1772 nrpacks - Max. number of packets per URB (default: 8)
1773 async_unlink - Use async unlink mode (default: yes)
1774 device_setup - Device specific magic number (optional)
1775 - Influence depends on the device
1777 ignore_ctl_error - Ignore any USB-controller regarding mixer
1778 interface (default: no)
1780 This module supports multiple devices, autoprobe and hotplugging.
1782 NB: nrpacks parameter can be modified dynamically via sysfs.
1783 Don't put the value over 20. Changing via sysfs has no sanity
1785 NB: async_unlink=0 would cause Oops. It remains just for
1786 debugging purpose (if any).
1787 NB: ignore_ctl_error=1 may help when you get an error at accessing
1788 the mixer element such as URB error -22. This happens on some
1789 buggy USB device or the controller.
1791 Module snd-usb-caiaq
1792 --------------------
1794 Module for caiaq UB audio interfaces,
1795 * Native Instruments RigKontrol2
1796 * Native Instruments Kore Controller
1797 * Native Instruments Audio Kontrol 1
1798 * Native Instruments Audio 8 DJ
1800 This module supports multiple devices, autoprobe and hotplugging.
1802 Module snd-usb-usx2y
1803 --------------------
1805 Module for Tascam USB US-122, US-224 and US-428 devices.
1807 This module supports multiple devices, autoprobe and hotplugging.
1809 Note: you need to load the firmware via usx2yloader utility included
1810 in alsa-tools and alsa-firmware packages.
1815 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1816 8233A, 8233C, 8235, 8237 (south) bridge.
1818 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1820 joystick - Enable joystick (default off) [VIA686A/686B only]
1821 ac97_clock - AC'97 codec clock base (default 48000Hz)
1822 dxs_support - support DXS channels,
1823 0 = auto (default), 1 = enable, 2 = disable,
1824 3 = 48k only, 4 = no VRA, 5 = enable any sample
1825 rate and different sample rates on different
1827 [VIA8233/C, 8235, 8237 only]
1828 ac97_quirk - AC'97 workaround for strange hardware
1829 See "AC97 Quirk Option" section below.
1831 This module supports one chip and autoprobe.
1833 Note: on some SMP motherboards like MSI 694D the interrupts might
1834 not be generated properly. In such a case, please try to
1835 set the SMP (or MPS) version on BIOS to 1.1 instead of
1836 default value 1.4. Then the interrupt number will be
1837 assigned under 15. You might also upgrade your BIOS.
1839 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1840 channels as the first PCM. On these channels, up to 4
1841 streams can be played at the same time, and the controller
1842 can perform sample rate conversion with separate rates for
1844 As default (dxs_support = 0), 48k fixed rate is chosen
1845 except for the known devices since the output is often
1846 noisy except for 48k on some mother boards due to the
1848 Please try once dxs_support=5 and if it works on other
1849 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1850 know the PCI subsystem vendor/device id's (output of
1852 If dxs_support=5 does not work, try dxs_support=4; if it
1853 doesn't work too, try dxs_support=1. (dxs_support=1 is
1854 usually for old motherboards. The correct implemented
1855 board should work with 4 or 5.) If it still doesn't
1856 work and the default setting is ok, dxs_support=3 is the
1857 right choice. If the default setting doesn't work at all,
1858 try dxs_support=2 to disable the DXS channels.
1859 In any cases, please let us know the result and the
1860 subsystem vendor/device ids. See "Links and Addresses"
1863 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1864 additionally. The mpu_port option is for VIA686 chips only.
1866 The power-management is supported.
1868 Module snd-via82xx-modem
1869 ------------------------
1871 Module for VIA82xx AC97 modem
1873 ac97_clock - AC'97 codec clock base (default 48000Hz)
1875 This module supports one card and autoprobe.
1877 Note: The default index value of this module is -2, i.e. the first
1880 The power-management is supported.
1885 Module for virtual rawmidi devices.
1886 This module creates virtual rawmidi devices which communicate
1887 to the corresponding ALSA sequencer ports.
1889 midi_devs - MIDI devices # (1-4, default=4)
1891 This module supports multiple cards.
1896 Module for sound cards based on the Asus AV100/AV200 chips,
1897 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), Essence ST
1898 (Deluxe) and Essence STX.
1900 This module supports autoprobe and multiple cards.
1905 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1907 mic - Enable Microphone on V222 Mic (NYI)
1908 ibl - Capture IBL size. (default = 0, minimum size)
1910 This module supports multiple cards.
1912 When the driver is compiled as a module and the hotplug firmware
1913 is supported, the firmware data is loaded via hotplug automatically.
1914 Install the necessary firmware files in alsa-firmware package.
1915 When no hotplug fw loader is available, you need to load the
1916 firmware via vxloader utility in alsa-tools package. To invoke
1917 vxloader automatically, add the following to /etc/modprobe.conf
1919 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1921 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1922 /etc/modules.conf, instead.)
1923 IBL size defines the interrupts period for PCM. The smaller size
1924 gives smaller latency but leads to more CPU consumption, too.
1925 The size is usually aligned to 126. As default (=0), the smallest
1926 size is chosen. The possible IBL values can be found in
1927 /proc/asound/cardX/vx-status proc file.
1929 The power-management is supported.
1934 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1936 ibl - Capture IBL size. (default = 0, minimum size)
1938 This module supports multiple cards. The module is compiled only when
1939 PCMCIA is supported on kernel.
1941 With the older 2.6.x kernel, to activate the driver via the card
1942 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1943 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1944 longer require a config file.
1946 When the driver is compiled as a module and the hotplug firmware
1947 is supported, the firmware data is loaded via hotplug automatically.
1948 Install the necessary firmware files in alsa-firmware package.
1949 When no hotplug fw loader is available, you need to load the
1950 firmware via vxloader utility in alsa-tools package.
1952 About capture IBL, see the description of snd-vx222 module.
1954 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1957 The power-management is supported.
1962 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1964 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1965 1 (auto-detect for YMF744/754 only)
1966 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1967 1 (auto-detect for YMF744/754 only)
1968 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1970 rear_switch - enable shared rear/line-in switch (bool)
1972 This module supports autoprobe and multiple chips.
1974 The power-management is supported.
1976 Module snd-pdaudiocf
1977 --------------------
1979 Module for Sound Core PDAudioCF sound card.
1981 The power-management is supported.
1987 The ac97_quirk option is used to enable/override the workaround for
1988 specific devices on drivers for on-board AC'97 controllers like
1989 snd-intel8x0. Some hardware have swapped output pins between Master
1990 and Headphone, or Surround (thanks to confusion of AC'97
1991 specifications from version to version :-)
1993 The driver provides the auto-detection of known problematic devices,
1994 but some might be unknown or wrongly detected. In such a case, pass
1995 the proper value with this option.
1997 The following strings are accepted:
1998 - default Don't override the default setting
1999 - none Disable the quirk
2000 - hp_only Bind Master and Headphone controls as a single control
2001 - swap_hp Swap headphone and master controls
2002 - swap_surround Swap master and surround controls
2003 - ad_sharing For AD1985, turn on OMS bit and use headphone
2004 - alc_jack For ALC65x, turn on the jack sense mode
2005 - inv_eapd Inverted EAPD implementation
2006 - mute_led Bind EAPD bit for turning on/off mute LED
2008 For backward compatibility, the corresponding integer value -1, 0,
2009 ... are accepted, too.
2011 For example, if "Master" volume control has no effect on your device
2012 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2015 Configuring Non-ISAPNP Cards
2016 ============================
2018 When the kernel is configured with ISA-PnP support, the modules
2019 supporting the isapnp cards will have module options "isapnp".
2020 If this option is set, *only* the ISA-PnP devices will be probed.
2021 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2022 together with the proper i/o and irq configuration.
2024 When the kernel is configured without ISA-PnP support, isapnp option
2025 will be not built in.
2028 Module Autoloading Support
2029 ==========================
2031 The ALSA drivers can be loaded automatically on demand by defining
2032 module aliases. The string 'snd-card-%1' is requested for ALSA native
2033 devices where %i is sound card number from zero to seven.
2035 To auto-load an ALSA driver for OSS services, define the string
2036 'sound-slot-%i' where %i means the slot number for OSS, which
2037 corresponds to the card index of ALSA. Usually, define this
2038 as the same card module.
2040 An example configuration for a single emu10k1 card is like below:
2041 ----- /etc/modprobe.conf
2042 alias snd-card-0 snd-emu10k1
2043 alias sound-slot-0 snd-emu10k1
2044 ----- /etc/modprobe.conf
2046 The available number of auto-loaded sound cards depends on the module
2047 option "cards_limit" of snd module. As default it's set to 1.
2048 To enable the auto-loading of multiple cards, specify the number of
2049 sound cards in that option.
2051 When multiple cards are available, it'd better to specify the index
2052 number for each card via module option, too, so that the order of
2053 cards is kept consistent.
2055 An example configuration for two sound cards is like below:
2057 ----- /etc/modprobe.conf
2059 options snd cards_limit=2
2060 alias snd-card-0 snd-interwave
2061 alias snd-card-1 snd-ens1371
2062 options snd-interwave index=0
2063 options snd-ens1371 index=1
2065 alias sound-slot-0 snd-interwave
2066 alias sound-slot-1 snd-ens1371
2067 ----- /etc/modprobe.conf
2069 In this example, the interwave card is always loaded as the first card
2070 (index 0) and ens1371 as the second (index 1).
2072 Alternative (and new) way to fixate the slot assignment is to use
2073 "slots" option of snd module. In the case above, specify like the
2076 options snd slots=snd-interwave,snd-ens1371
2078 Then, the first slot (#0) is reserved for snd-interwave driver, and
2079 the second (#1) for snd-ens1371. You can omit index option in each
2080 driver if slots option is used (although you can still have them at
2081 the same time as long as they don't conflict).
2083 The slots option is especially useful for avoiding the possible
2084 hot-plugging and the resultant slot conflict. For example, in the
2085 case above again, the first two slots are already reserved. If any
2086 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2087 snd-ens1371, it will be assigned to the third or later slot.
2089 When a module name is given with '!', the slot will be given for any
2090 modules but that name. For example, "slots=!snd-pcsp" will reserve
2091 the first slot for any modules but snd-pcsp.
2094 ALSA PCM devices to OSS devices mapping
2095 =======================================
2097 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2098 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2099 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2100 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2101 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2102 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2103 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2104 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2105 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2107 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2108 sound card number and second means device number. The ALSA devices
2109 have either 'c' or 'p' suffix indicating the direction, capture and
2110 playback, respectively.
2112 Please note that the device mapping above may be varied via the module
2113 options of snd-pcm-oss module.
2116 Proc interfaces (/proc/asound)
2117 ==============================
2119 /proc/asound/card#/pcm#[cp]/oss
2120 -------------------------------
2121 String "erase" - erase all additional informations about OSS applications
2122 String "<app_name> <fragments> <fragment_size> [<options>]"
2124 <app_name> - name of application with (higher priority) or without path
2125 <fragments> - number of fragments or zero if auto
2126 <fragment_size> - size of fragment in bytes or zero if auto
2127 <options> - optional parameters
2128 - disable the application tries to open a pcm device for
2129 this channel but does not want to use it.
2130 (Cause a bug or mmap needs)
2131 It's good for Quake etc...
2132 - direct don't use plugins
2133 - block force block mode (rvplayer)
2134 - non-block force non-block mode
2135 - whole-frag write only whole fragments (optimization affecting
2137 - no-silence do not fill silence ahead to avoid clicks
2138 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2139 instead of filled blocks
2141 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2142 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2143 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2146 Early Buffer Allocation
2147 =======================
2149 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2150 sometimes it's too late to find such spaces when the driver module is
2151 actually loaded due to memory fragmentation. You can pre-allocate the
2152 PCM buffers by loading snd-page-alloc module and write commands to its
2153 proc file in prior, for example, in the early boot stage like
2154 /etc/init.d/*.local scripts.
2156 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2157 usage of page allocation. In writing, you can send the following
2158 commands to the snd-page-alloc driver:
2160 - add VENDOR DEVICE MASK SIZE BUFFERS
2162 VENDOR and DEVICE are PCI vendor and device IDs. They take
2163 integer numbers (0x prefix is needed for the hex).
2164 MASK is the PCI DMA mask. Pass 0 if not restricted.
2165 SIZE is the size of each buffer to allocate. You can pass
2166 k and m suffix for KB and MB. The max number is 16MB.
2167 BUFFERS is the number of buffers to allocate. It must be greater
2168 than 0. The max number is 4.
2172 This will erase the all pre-allocated buffers which are not in
2179 ALSA project homepage
2180 http://www.alsa-project.org
2183 http://bugzilla.kernel.org/
2186 mailto:alsa-devel@alsa-project.org
2189 http://www.alsa-project.org/alsa-info.sh
git.openpandora.org / pandora-kernel.git / blob