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 Echoaudio Darla20
468 This module supports multiple cards.
469 The driver requires the firmware loader support on kernel.
474 Module for Echoaudio Darla24
476 This module supports multiple cards.
477 The driver requires the firmware loader support on kernel.
482 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
485 This module supports multiple cards. This module is enabled only with
488 The power-management is supported.
493 Module for the dummy sound card. This "card" doesn't do any output
494 or input, but you may use this module for any application which
495 requires a sound card (like RealPlayer).
497 The power-management is supported.
502 Module for Echoaudio 3G cards (Gina3G/Layla3G)
504 This module supports multiple cards.
505 The driver requires the firmware loader support on kernel.
510 Module for EMU10K1/EMU10k2 based PCI sound cards.
511 * Sound Blaster Live!
512 * Sound Blaster PCI 512
513 * Emu APS (partially supported)
514 * Sound Blaster Audigy
516 extin - bitmap of available external inputs for FX8010 (see bellow)
517 extout - bitmap of available external outputs for FX8010 (see bellow)
518 seq_ports - allocated sequencer ports (4 by default)
519 max_synth_voices - limit of voices used for wavetable (64 by default)
520 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
521 given in MB unit. Default value is 128.
522 enable_ir - enable IR
524 This module supports multiple cards and autoprobe.
526 Input & Output configurations [extin/extout]
527 * Creative Card wo/Digital out [0x0003/0x1f03]
528 * Creative Card w/Digital out [0x0003/0x1f0f]
529 * Creative Card w/Digital CD in [0x000f/0x1f0f]
530 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
531 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
532 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
533 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
534 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
535 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
536 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
537 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
538 * Creative Card all ins and outs [0x3fff/0x7fff]
540 The power-management is supported.
545 Module for Creative Emu10k1X (SB Live Dell OEM version)
547 This module supports multiple cards.
552 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
553 * SoundBlaster PCI 64
554 * SoundBlaster PCI 128
556 joystick - Enable joystick (default off)
558 This module supports multiple cards and autoprobe.
560 The power-management is supported.
565 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
566 * SoundBlaster PCI 64
567 * SoundBlaster PCI 128
568 * SoundBlaster Vibra PCI
570 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
571 0 = disable (default), 1 = auto-detect
573 This module supports multiple cards and autoprobe.
575 The power-management is supported.
580 Module for sound cards based on ESS ES968 chip (PnP only).
582 This module supports multiple cards, PnP and autoprobe.
584 The power-management is supported.
589 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
591 port - port # for ES-1688 chip (0x220,0x240,0x260)
592 fm_port - port # for OPL3 (option; share the same port as default)
593 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
594 irq - IRQ # for ES-1688 chip (5,7,9,10)
595 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
596 dma8 - DMA # for ES-1688 chip (0,1,3)
598 This module supports multiple cards and autoprobe (without MPU-401 port).
603 Module for ESS AudioDrive ES-18xx sound cards.
605 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
607 with isapnp=0, the following options are available:
609 port - port # for ES-18xx chip (0x220,0x240,0x260)
610 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
611 fm_port - port # for FM (optional, not used)
612 irq - IRQ # for ES-18xx chip (5,7,9,10)
613 dma1 - first DMA # for ES-18xx chip (0,1,3)
614 dma2 - first DMA # for ES-18xx chip (0,1,3)
616 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
617 port if native ISA PnP routines are not used).
618 When dma2 is equal with dma1, the driver works as half-duplex.
620 The power-management is supported.
625 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
627 This module supports multiple cards and autoprobe.
629 The power-management is supported.
634 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
636 total_bufsize - total buffer size in kB (1-4096kB)
637 pcm_substreams_p - playback channels (1-8, default=2)
638 pcm_substreams_c - capture channels (1-8, default=0)
639 clock - clock (0 = auto-detection)
640 use_pm - support the power-management (0 = off, 1 = on,
642 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
643 joystick - enable joystick (default off)
645 This module supports multiple cards and autoprobe.
647 The power-management is supported.
652 Module for ForteMedia FM801 based PCI sound cards.
654 tea575x_tuner - Enable TEA575x tuner
655 - 1 = MediaForte 256-PCS
656 - 2 = MediaForte 256-PCPR
657 - 3 = MediaForte 64-PCR
658 - High 16-bits are video (radio) device number + 1
659 - example: 0x10002 (MediaForte 256-PCPR, device 1)
661 This module supports multiple cards and autoprobe.
663 The power-management is supported.
668 Module for Echoaudio Gina20
670 This module supports multiple cards.
671 The driver requires the firmware loader support on kernel.
676 Module for Echoaudio Gina24
678 This module supports multiple cards.
679 The driver requires the firmware loader support on kernel.
681 Module snd-gusclassic
682 ---------------------
684 Module for Gravis UltraSound Classic sound card.
686 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
687 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
688 dma1 - DMA # for GF1 chip (1,3,5,6,7)
689 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
690 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
691 voices - GF1 voices limit (14-32)
692 pcm_voices - reserved PCM voices
694 This module supports multiple cards and autoprobe.
696 Module snd-gusextreme
697 ---------------------
699 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
701 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
702 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
703 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
704 irq - IRQ # for ES-1688 chip (5,7,9,10)
705 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
706 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
707 dma8 - DMA # for ES-1688 chip (0,1,3)
708 dma1 - DMA # for GF1 chip (1,3,5,6,7)
709 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
710 voices - GF1 voices limit (14-32)
711 pcm_voices - reserved PCM voices
713 This module supports multiple cards and autoprobe (without MPU-401 port).
718 Module for Gravis UltraSound MAX sound card.
720 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
721 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
722 dma1 - DMA # for GF1 chip (1,3,5,6,7)
723 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
724 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
725 voices - GF1 voices limit (14-32)
726 pcm_voices - reserved PCM voices
728 This module supports multiple cards and autoprobe.
733 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
735 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
736 RV630, RV635, RV670, RV770,
740 [Multiple options for each card instance]
741 model - force the model name
742 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
743 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
744 When the bit 8 (0x100) is set, the lower 8 bits are used
745 as the "fixed" codec slots; i.e. the driver probes the
746 slots regardless what hardware reports back
747 probe_only - Only probing and no codec initialization (default=off);
748 Useful to check the initial codec status for debugging
749 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
750 Passing -1 will make the driver to choose the appropriate
751 value based on the controller chip.
752 patch - Specifies the early "patch" files to modify the HD-audio
753 setup before initializing the codecs. This option is
754 available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
755 See HD-Audio.txt for details.
757 [Single (global) options]
758 single_cmd - Use single immediate commands to communicate with
759 codecs (for debugging only)
760 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
761 power_save - Automatic power-saving timtout (in second, 0 =
763 power_save_controller - Reset HD-audio controller in power-saving mode
766 This module supports multiple cards and autoprobe.
768 See Documentation/sound/alsa/HD-Audio.txt for more details about
771 Each codec may have a model table for different configurations.
772 If your machine isn't listed there, the default (usually minimal)
773 configuration is set up. You can pass "model=<name>" option to
774 specify a certain model in such a case. There are different
775 models depending on the codec chip. The list of available models
776 is found in HD-Audio-Models.txt
778 The model name "genric" is treated as a special case. When this
779 model is given, the driver uses the generic codec parser without
780 "codec-patch". It's sometimes good for testing and debugging.
782 If the default configuration doesn't work and one of the above
783 matches with your device, report it together with alsa-info.sh
784 output (with --no-upload option) to kernel bugzilla or alsa-devel
785 ML (see the section "Links and Addresses").
787 power_save and power_save_controller options are for power-saving
788 mode. See powersave.txt for details.
790 Note 2: If you get click noises on output, try the module option
791 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
792 register value without FIFO size correction as the current
793 DMA pointer. position_fix=2 will make the driver to use
794 the position buffer instead of reading SD_LPIB register.
795 (Usually SD_LPIB register is more accurate than the
798 NB: If you get many "azx_get_response timeout" messages at
799 loading, it's likely a problem of interrupts (e.g. ACPI irq
800 routing). Try to boot with options like "pci=noacpi". Also, you
801 can try "single_cmd=1" module option. This will switch the
802 communication method between HDA controller and codecs to the
803 single immediate commands instead of CORB/RIRB. Basically, the
804 single command mode is provided only for BIOS, and you won't get
805 unsolicited events, too. But, at least, this works independently
806 from the irq. Remember this is a last resort, and should be
807 avoided as much as possible...
809 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
810 On some hardwares, you may need to add a proper probe_mask option
811 to avoid the "azx_get_response timeout" problem above, instead.
812 This occurs when the access to non-existing or non-working codec slot
813 (likely a modem one) causes a stall of the communication via HD-audio
814 bus. You can see which codec slots are probed by enabling
815 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
816 proc files. Then limit the slots to probe by probe_mask option.
817 For example, probe_mask=1 means to probe only the first slot, and
818 probe_mask=4 means only the third slot.
820 The power-management is supported.
825 Module for RME Hammerfall DSP audio interface(s)
827 This module supports multiple cards.
829 Note: The firmware data can be automatically loaded via hotplug
830 when CONFIG_FW_LOADER is set. Otherwise, you need to load
831 the firmware via hdsploader utility included in alsa-tools
833 The firmware data is found in alsa-firmware package.
835 Note: snd-page-alloc module does the job which snd-hammerfall-mem
836 module did formerly. It will allocate the buffers in advance
837 when any HDSP cards are found. To make the buffer
838 allocation sure, load snd-page-alloc module in the early
839 stage of boot sequence. See "Early Buffer Allocation"
845 Module for RME HDSP MADI board.
847 precise_ptr - Enable precise pointer, or disable.
848 line_outs_monitor - Send playback streams to analog outs by default.
849 enable_monitor - Enable Analog Out on Channel 63/64 by default.
851 See hdspm.txt for details.
856 Module for the MediaTek/TempoTec HiFier Fantasia sound card.
858 This module supports autoprobe and multiple cards.
863 Module for Envy24 (ICE1712) based PCI sound cards.
864 * MidiMan M Audio Delta 1010
865 * MidiMan M Audio Delta 1010LT
866 * MidiMan M Audio Delta DiO 2496
867 * MidiMan M Audio Delta 66
868 * MidiMan M Audio Delta 44
869 * MidiMan M Audio Delta 410
870 * MidiMan M Audio Audiophile 2496
876 * Hoontech SoundTrack DSP 24
877 * Hoontech SoundTrack DSP 24 Value
878 * Hoontech SoundTrack DSP 24 Media 7.1
879 * Event Electronics, EZ8
881 * Lionstracs, Mediastaton
884 model - Use the given board model, one of the following:
885 delta1010, dio2496, delta66, delta44, audiophile, delta410,
886 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
887 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
888 phase88, mediastation
889 omni - Omni I/O support for MidiMan M-Audio Delta44/66
890 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
891 in msec resolution, default value is 500 (0.5 sec)
893 This module supports multiple cards and autoprobe. Note: The consumer part
894 is not used with all Envy24 based cards (for example in the MidiMan Delta
897 Note: The supported board is detected by reading EEPROM or PCI
898 SSID (if EEPROM isn't available). You can override the
899 model by passing "model" module option in case that the
900 driver isn't configured properly or you want to try another
906 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
907 * MidiMan M Audio Revolution 5.1
908 * MidiMan M Audio Revolution 7.1
909 * MidiMan M Audio Audiophile 192
911 * TerraTec Aureon 5.1 Sky
912 * TerraTec Aureon 7.1 Space
913 * TerraTec Aureon 7.1 Universe
916 * AudioTrak Prodigy 7.1
917 * AudioTrak Prodigy 7.1 LT
918 * AudioTrak Prodigy 7.1 XT
919 * AudioTrak Prodigy 7.1 HIFI
920 * AudioTrak Prodigy 7.1 HD2
921 * AudioTrak Prodigy 192
923 * Albatron K8X800 Pro II
932 * Hercules Fortissimo IV
933 * EGO-SYS WaveTerminal 192M
935 model - Use the given board model, one of the following:
936 revo51, revo71, amp2000, prodigy71, prodigy71lt,
937 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
938 juli, aureon51, aureon71, universe, ap192, k8x800,
939 phase22, phase28, ms300, av710, se200pci, se90pci,
940 fortissimo4, sn25p, WT192M
942 This module supports multiple cards and autoprobe.
944 Note: The supported board is detected by reading EEPROM or PCI
945 SSID (if EEPROM isn't available). You can override the
946 model by passing "model" module option in case that the
947 driver isn't configured properly or you want to try another
953 Module for Echoaudio Indigo
955 This module supports multiple cards.
956 The driver requires the firmware loader support on kernel.
961 Module for Echoaudio Indigo DJ
963 This module supports multiple cards.
964 The driver requires the firmware loader support on kernel.
969 Module for Echoaudio Indigo IO
971 This module supports multiple cards.
972 The driver requires the firmware loader support on kernel.
977 Module for AC'97 motherboards from Intel and compatibles.
978 * Intel i810/810E, i815, i820, i830, i84x, MX440
979 ICH5, ICH6, ICH7, 6300ESB, ESB2
981 * NVidia NForce, NForce2, NForce3, MCP04, CK804
983 * AMD AMD768, AMD8111
986 ac97_clock - AC'97 codec clock base (0 = auto-detect)
987 ac97_quirk - AC'97 workaround for strange hardware
988 See "AC97 Quirk Option" section below.
989 buggy_irq - Enable workaround for buggy interrupts on some
990 motherboards (default yes on nForce chips,
992 buggy_semaphore - Enable workaround for hardwares with buggy
993 semaphores (e.g. on some ASUS laptops)
995 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
996 from the controller chip
997 (0 = off, 1 = on, -1 = default)
999 This module supports one chip and autoprobe.
1001 Note: the latest driver supports auto-detection of chip clock.
1002 if you still encounter too fast playback, specify the clock
1003 explicitly via the module option "ac97_clock=41194".
1005 Joystick/MIDI ports are not supported by this driver. If your
1006 motherboard has these devices, use the ns558 or snd-mpu401
1007 modules, respectively.
1009 The power-management is supported.
1011 Module snd-intel8x0m
1012 --------------------
1014 Module for Intel ICH (i8x0) chipset MC97 modems.
1015 * Intel i810/810E, i815, i820, i830, i84x, MX440
1017 * SiS 7013 (SiS 735)
1018 * NVidia NForce, NForce2, NForce2s, NForce3
1022 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1024 This module supports one card and autoprobe.
1026 Note: The default index value of this module is -2, i.e. the first
1029 The power-management is supported.
1031 Module snd-interwave
1032 --------------------
1034 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1035 and other sound cards based on AMD InterWave (tm) chip.
1037 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1038 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1039 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1040 effect - 1 = InterWave effects enable (default 0);
1042 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1044 with isapnp=0, the following options are available:
1046 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1047 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1048 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1049 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1051 This module supports multiple cards, autoprobe and ISA PnP.
1053 Module snd-interwave-stb
1054 ------------------------
1056 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1057 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1058 circuit for extended control of bass, treble and master volume.
1060 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1061 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1062 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1063 effect - 1 = InterWave effects enable (default 0);
1065 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1067 with isapnp=0, the following options are available:
1069 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1070 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1071 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1072 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1073 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1075 This module supports multiple cards, autoprobe and ISA PnP.
1080 Module for Korg 1212 IO PCI card
1082 This module supports multiple cards.
1087 Module for Echoaudio Layla20
1089 This module supports multiple cards.
1090 The driver requires the firmware loader support on kernel.
1095 Module for Echoaudio Layla24
1097 This module supports multiple cards.
1098 The driver requires the firmware loader support on kernel.
1103 Module for Allegro/Maestro3 chips
1105 external_amp - enable external amp (enabled by default)
1106 amp_gpio - GPIO pin number for external amp (0-15) or
1107 -1 for default pin (8 for allegro, 1 for
1110 This module supports autoprobe and multiple chips.
1112 Note: the binding of amplifier is dependent on hardware.
1113 If there is no sound even though all channels are unmuted, try to
1114 specify other gpio connection via amp_gpio option.
1115 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1118 The power-management is supported.
1123 Module for Echoaudio Mia
1125 This module supports multiple cards.
1126 The driver requires the firmware loader support on kernel.
1131 Module for Miro soundcards: miroSOUND PCM 1 pro,
1133 miroSOUND PCM 20 Radio.
1135 port - Port # (0x530,0x604,0xe80,0xf40)
1136 irq - IRQ # (5,7,9,10,11)
1137 dma1 - 1st dma # (0,1,3)
1138 dma2 - 2nd dma # (0,1)
1139 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1140 mpu_irq - MPU-401 irq # (5,7,9,10)
1141 fm_port - FM Port # (0x388)
1142 wss - enable WSS mode
1143 ide - enable onboard ide support
1148 Module for Digigram miXart8 sound cards.
1150 This module supports multiple cards.
1151 Note: One miXart8 board will be represented as 4 alsa cards.
1152 See MIXART.txt for details.
1154 When the driver is compiled as a module and the hotplug firmware
1155 is supported, the firmware data is loaded via hotplug automatically.
1156 Install the necessary firmware files in alsa-firmware package.
1157 When no hotplug fw loader is available, you need to load the
1158 firmware via mixartloader utility in alsa-tools package.
1163 Module for Echoaudio Mona
1165 This module supports multiple cards.
1166 The driver requires the firmware loader support on kernel.
1171 Module for MPU-401 UART devices.
1173 port - port number or -1 (disable)
1174 irq - IRQ number or -1 (disable)
1175 pnp - PnP detection - 0 = disable, 1 = enable (default)
1177 This module supports multiple devices and PnP.
1179 Module snd-msnd-classic
1180 -----------------------
1182 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1185 io - Port # for msnd-classic card
1186 irq - IRQ # for msnd-classic card
1187 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1189 write_ndelay - enable write ndelay (default = 1)
1190 calibrate_signal - calibrate signal (default = 0)
1191 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1192 digital - Digital daughterboard present (default = 0)
1193 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1194 reset - Reset all devices
1195 mpu_io - MPU401 I/O port
1196 mpu_irq - MPU401 irq#
1197 ide_io0 - IDE port #0
1198 ide_io1 - IDE port #1
1200 joystick_io - Joystick I/O port
1202 The driver requires firmware files "turtlebeach/msndinit.bin" and
1203 "turtlebeach/msndperm.bin" in the proper firmware directory.
1205 See Documentation/sound/oss/MultiSound for important information
1206 about this driver. Note that it has been discontinued, but the
1207 Voyetra Turtle Beach knowledge base entry for it is still available
1209 http://www.turtlebeach.com/site/kb_ftp/790.asp
1211 Module snd-msnd-pinnacle
1212 ------------------------
1214 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1216 io - Port # for pinnacle/fiji card
1217 irq - IRQ # for pinnalce/fiji card
1218 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1220 write_ndelay - enable write ndelay (default = 1)
1221 calibrate_signal - calibrate signal (default = 0)
1222 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1224 The driver requires firmware files "turtlebeach/pndspini.bin" and
1225 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1230 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1233 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1234 irq - IRQ # for MTPAV (7,5, default=7)
1235 hwports - number of supported hardware ports, default=8.
1237 Module supports only 1 card. This module has no enable option.
1242 Module for Ego Systems (ESI) Miditerminal 4140
1244 This module supports multiple devices.
1245 Requires parport (CONFIG_PARPORT).
1250 Module for NeoMagic NM256AV/ZX chips
1252 playback_bufsize - max playback frame size in kB (4-128kB)
1253 capture_bufsize - max capture frame size in kB (4-128kB)
1254 force_ac97 - 0 or 1 (disabled by default)
1255 buffer_top - specify buffer top address
1256 use_cache - 0 or 1 (disabled by default)
1257 vaio_hack - alias buffer_top=0x25a800
1258 reset_workaround - enable AC97 RESET workaround for some laptops
1259 reset_workaround2 - enable extended AC97 RESET workaround for some
1262 This module supports one chip and autoprobe.
1264 The power-management is supported.
1266 Note: on some notebooks the buffer address cannot be detected
1267 automatically, or causes hang-up during initialization.
1268 In such a case, specify the buffer top address explicitly via
1269 the buffer_top option.
1271 Sony F250: buffer_top=0x25a800
1272 Sony F270: buffer_top=0x272800
1273 The driver supports only ac97 codec. It's possible to force
1274 to initialize/use ac97 although it's not detected. In such a
1275 case, use force_ac97=1 option - but *NO* guarantee whether it
1278 Note: The NM256 chip can be linked internally with non-AC97
1279 codecs. This driver supports only the AC97 codec, and won't work
1280 with machines with other (most likely CS423x or OPL3SAx) chips,
1281 even though the device is detected in lspci. In such a case, try
1282 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1283 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1284 and proper hardware parameters in the case without ISA PnP.
1286 Note: some laptops need a workaround for AC97 RESET. For the
1287 known hardware like Dell Latitude LS and Sony PCG-F305, this
1288 workaround is enabled automatically. For other laptops with a
1289 hard freeze, you can try reset_workaround=1 option.
1291 Note: Dell Latitude CSx laptops have another problem regarding
1292 AC97 RESET. On these laptops, reset_workaround2 option is
1293 turned on as default. This option is worth to try if the
1294 previous reset_workaround option doesn't help.
1296 Note: This driver is really crappy. It's a porting from the
1297 OSS driver, which is a result of black-magic reverse engineering.
1298 The detection of codec will fail if the driver is loaded *after*
1299 X-server as described above. You might be able to force to load
1300 the module, but it may result in hang-up. Hence, make sure that
1301 you load this module *before* X if you encounter this kind of
1307 Module for Yamaha OPL3-SA2/SA3 sound cards.
1309 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1311 with isapnp=0, the following options are available:
1313 port - control port # for OPL3-SA chip (0x370)
1314 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1315 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1316 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1317 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1318 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1319 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1320 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1322 This module supports multiple cards and ISA PnP. It does not support
1323 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1325 The power-management is supported.
1327 Module snd-opti92x-ad1848
1328 -------------------------
1330 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1331 Module works with OAK Mozart cards as well.
1333 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1335 with isapnp=0, the following options are available:
1337 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1338 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1339 fm_port - port # for OPL3 device (0x388)
1340 irq - IRQ # for WSS chip (5,7,9,10,11)
1341 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1342 dma1 - first DMA # for WSS chip (0,1,3)
1344 This module supports only one card, autoprobe and PnP.
1346 Module snd-opti92x-cs4231
1347 -------------------------
1349 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1351 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1353 with isapnp=0, the following options are available:
1355 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1356 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1357 fm_port - port # for OPL3 device (0x388)
1358 irq - IRQ # for WSS chip (5,7,9,10,11)
1359 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1360 dma1 - first DMA # for WSS chip (0,1,3)
1361 dma2 - second DMA # for WSS chip (0,1,3)
1363 This module supports only one card, autoprobe and PnP.
1368 Module for sound cards based on OPTi 82c93x chips.
1370 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1372 with isapnp=0, the following options are available:
1374 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1375 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1376 fm_port - port # for OPL3 device (0x388)
1377 irq - IRQ # for WSS chip (5,7,9,10,11)
1378 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1379 dma1 - first DMA # for WSS chip (0,1,3)
1380 dma2 - second DMA # for WSS chip (0,1,3)
1382 This module supports only one card, autoprobe and PnP.
1387 Module for sound cards based on the C-Media CMI8788 chip:
1389 * AuzenTech X-Meridian
1391 * Club3D Theatron DTS
1392 * HT-Omega Claro (plus)
1393 * HT-Omega Claro halo (XT)
1394 * Razer Barracuda AC-1
1397 This module supports autoprobe and multiple cards.
1402 Module for internal PC-Speaker.
1404 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1406 This module supports system beeps, some kind of PCM playback and
1407 even a few mixer controls.
1412 Module for Digigram PCXHR boards
1414 This module supports multiple cards.
1416 Module snd-portman2x4
1417 ---------------------
1419 Module for Midiman Portman 2x4 parallel port MIDI interface
1421 This module supports multiple cards.
1423 Module snd-powermac (on ppc only)
1424 ---------------------------------
1426 Module for PowerMac, iMac and iBook on-board soundchips
1428 enable_beep - enable beep using PCM (enabled as default)
1430 Module supports autoprobe a chip.
1432 Note: the driver may have problems regarding endianess.
1434 The power-management is supported.
1436 Module snd-pxa2xx-ac97 (on arm only)
1437 ------------------------------------
1439 Module for AC97 driver for the Intel PXA2xx chip
1441 For ARM architecture only.
1443 The power-management is supported.
1448 Module for Conexant Riptide chip
1450 joystick_port - Joystick port # (default: 0x200)
1451 mpu_port - MPU401 port # (default: 0x330)
1452 opl3_port - OPL3 port # (default: 0x388)
1454 This module supports multiple cards.
1455 The driver requires the firmware loader support on kernel.
1456 You need to install the firmware file "riptide.hex" to the standard
1457 firmware path (e.g. /lib/firmware).
1462 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1463 Prodif96 and Prodif Gold) sound cards.
1465 This module supports multiple cards.
1470 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1472 This module supports multiple cards.
1477 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1479 precise_ptr - Enable precise pointer (doesn't work reliably).
1482 This module supports multiple cards.
1484 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1485 module did formerly. It will allocate the buffers in advance
1486 when any RME9652 cards are found. To make the buffer
1487 allocation sure, load snd-page-alloc module in the early
1488 stage of boot sequence. See "Early Buffer Allocation"
1491 Module snd-sa11xx-uda1341 (on arm only)
1492 ---------------------------------------
1494 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1496 Module supports only one card.
1497 Module has no enable and index options.
1499 The power-management is supported.
1504 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1508 port - port # for SB DSP chip (0x220,0x240,0x260)
1509 irq - IRQ # for SB DSP chip (5,7,9,10)
1510 dma8 - DMA # for SB DSP chip (1,3)
1512 This module supports multiple cards and autoprobe.
1514 The power-management is supported.
1516 Module snd-sb16 and snd-sbawe
1517 -----------------------------
1519 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1520 SoundBlaster AWE 32 (PnP),
1521 SoundBlaster AWE 64 PnP
1523 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1524 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1525 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1527 with isapnp=0, the following options are available:
1529 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1530 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1531 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1532 (snd-sbawe module only)
1533 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1534 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1535 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1537 This module supports multiple cards, autoprobe and ISA PnP.
1539 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1540 disable 16bit DMA with dma16 = -1 module parameter.
1541 Also, all Sound Blaster 16 type cards can operate in 16-bit
1542 half duplex mode through 8-bit DMA channel by disabling their
1545 The power-management is supported.
1550 Module for Gallant SC-6000 soundcard.
1552 port - Port # (0x220 or 0x240)
1553 mss_port - MSS Port # (0x530 or 0xe80)
1554 irq - IRQ # (5,7,9,10,11)
1555 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1558 This module supports multiple cards.
1560 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1565 Module for Aztech Sound Galaxy sound card.
1567 sbport - Port # for SB16 interface (0x220,0x240)
1568 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1569 irq - IRQ # (7,9,10,11)
1572 This module supports multiple cards.
1574 The power-management is supported.
1579 Module for ENSONIQ SoundScape PnP cards.
1581 port - Port # (PnP setup)
1582 wss_port - WSS Port # (PnP setup)
1583 irq - IRQ # (PnP setup)
1584 mpu_irq - MPU-401 IRQ # (PnP setup)
1585 dma - DMA # (PnP setup)
1586 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1588 This module supports multiple cards. ISA PnP must be enabled.
1589 You need sscape_ctl tool in alsa-tools package for loading
1592 Module snd-sun-amd7930 (on sparc only)
1593 --------------------------------------
1595 Module for AMD7930 sound chips found on Sparcs.
1597 This module supports multiple cards.
1599 Module snd-sun-cs4231 (on sparc only)
1600 -------------------------------------
1602 Module for CS4231 sound chips found on Sparcs.
1604 This module supports multiple cards.
1606 Module snd-sun-dbri (on sparc only)
1607 -----------------------------------
1609 Module for DBRI sound chips found on Sparcs.
1611 This module supports multiple cards.
1613 Module snd-wavefront
1614 --------------------
1616 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1618 use_cs4232_midi - Use CS4232 MPU-401 interface
1619 (inaccessibly located inside your computer)
1620 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1622 with isapnp=0, the following options are available:
1624 cs4232_pcm_port - Port # for CS4232 PCM interface.
1625 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1626 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1627 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1628 ics2115_port - Port # for ICS2115
1629 ics2115_irq - IRQ # for ICS2115
1630 fm_port - FM OPL-3 Port #
1631 dma1 - DMA1 # for CS4232 PCM interface.
1632 dma2 - DMA2 # for CS4232 PCM interface.
1634 The below are options for wavefront_synth features:
1635 wf_raw - Assume that we need to boot the OS (default:no)
1636 If yes, then during driver loading, the state of the board is
1637 ignored, and we reset the board and load the firmware anyway.
1638 fx_raw - Assume that the FX process needs help (default:yes)
1639 If false, we'll leave the FX processor in whatever state it is
1640 when the driver is loaded. The default is to download the
1641 microprogram and associated coefficients to set it up for
1642 "default" operation, whatever that means.
1643 debug_default - Debug parameters for card initialization
1644 wait_usecs - How long to wait without sleeping, usecs
1646 This magic number seems to give pretty optimal throughput
1647 based on my limited experimentation.
1648 If you want to play around with it and find a better value, be
1649 my guest. Remember, the idea is to get a number that causes us
1650 to just busy wait for as many WaveFront commands as possible,
1651 without coming up with a number so large that we hog the whole
1653 Specifically, with this number, out of about 134,000 status
1654 waits, only about 250 result in a sleep.
1655 sleep_interval - How long to sleep when waiting for reply
1657 sleep_tries - How many times to try sleeping during a wait
1659 ospath - Pathname to processed ICS2115 OS firmware
1660 (default:wavefront.os)
1661 The path name of the ISC2115 OS firmware. In the recent
1662 version, it's handled via firmware loader framework, so it
1663 must be installed in the proper path, typically,
1665 reset_time - How long to wait for a reset to take effect
1667 ramcheck_time - How many seconds to wait for the RAM test
1669 osrun_time - How many seconds to wait for the ICS2115 OS
1672 This module supports multiple cards and ISA PnP.
1674 Note: the firmware file "wavefront.os" was located in the earlier
1675 version in /etc. Now it's loaded via firmware loader, and
1676 must be in the proper firmware path, such as /lib/firmware.
1677 Copy (or symlink) the file appropriately if you get an error
1678 regarding firmware downloading after upgrading the kernel.
1680 Module snd-sonicvibes
1681 ---------------------
1683 Module for S3 SonicVibes PCI sound cards.
1684 * PINE Schubert 32 PCI
1686 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1687 - SoundCard must have onboard SRAM for this.
1688 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1690 This module supports multiple cards and autoprobe.
1692 Module snd-serial-u16550
1693 ------------------------
1695 Module for UART16550A serial MIDI ports.
1697 port - port # for UART16550A chip
1698 irq - IRQ # for UART16550A chip, -1 = poll mode
1699 speed - speed in bauds (9600,19200,38400,57600,115200)
1701 base - base for divisor in bauds (57600,115200,230400,460800)
1703 outs - number of MIDI ports in a serial port (1-4)
1705 adaptor - Type of adaptor.
1706 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1707 3 = MS-124W M/B, 4 = Generic
1709 This module supports multiple cards. This module does not support autoprobe
1710 thus the main port must be specified!!! Other options are optional.
1715 Module for Trident 4DWave DX/NX sound cards.
1716 * Best Union Miss Melody 4DWave PCI
1718 * Warpspeed ONSpeed 4DWave PCI
1721 * CHIC True Sound 4Dwave
1722 * Shark Predator4D-PCI
1723 * Jaton SonicWave 4D
1724 * SiS SI7018 PCI Audio
1725 * Hoontech SoundTrack Digital 4DWave NX
1727 pcm_channels - max channels (voices) reserved for PCM
1728 wavetable_size - max wavetable size in kB (4-?kb)
1730 This module supports multiple cards and autoprobe.
1732 The power-management is supported.
1734 Module snd-usb-audio
1735 --------------------
1737 Module for USB audio and USB MIDI devices.
1739 vid - Vendor ID for the device (optional)
1740 pid - Product ID for the device (optional)
1741 nrpacks - Max. number of packets per URB (default: 8)
1742 async_unlink - Use async unlink mode (default: yes)
1743 device_setup - Device specific magic number (optional)
1744 - Influence depends on the device
1746 ignore_ctl_error - Ignore any USB-controller regarding mixer
1747 interface (default: no)
1749 This module supports multiple devices, autoprobe and hotplugging.
1751 NB: nrpacks parameter can be modified dynamically via sysfs.
1752 Don't put the value over 20. Changing via sysfs has no sanity
1754 NB: async_unlink=0 would cause Oops. It remains just for
1755 debugging purpose (if any).
1756 NB: ignore_ctl_error=1 may help when you get an error at accessing
1757 the mixer element such as URB error -22. This happens on some
1758 buggy USB device or the controller.
1760 Module snd-usb-caiaq
1761 --------------------
1763 Module for caiaq UB audio interfaces,
1764 * Native Instruments RigKontrol2
1765 * Native Instruments Kore Controller
1766 * Native Instruments Audio Kontrol 1
1767 * Native Instruments Audio 8 DJ
1769 This module supports multiple devices, autoprobe and hotplugging.
1771 Module snd-usb-usx2y
1772 --------------------
1774 Module for Tascam USB US-122, US-224 and US-428 devices.
1776 This module supports multiple devices, autoprobe and hotplugging.
1778 Note: you need to load the firmware via usx2yloader utility included
1779 in alsa-tools and alsa-firmware packages.
1784 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1785 8233A, 8233C, 8235, 8237 (south) bridge.
1787 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1789 joystick - Enable joystick (default off) [VIA686A/686B only]
1790 ac97_clock - AC'97 codec clock base (default 48000Hz)
1791 dxs_support - support DXS channels,
1792 0 = auto (default), 1 = enable, 2 = disable,
1793 3 = 48k only, 4 = no VRA, 5 = enable any sample
1794 rate and different sample rates on different
1796 [VIA8233/C, 8235, 8237 only]
1797 ac97_quirk - AC'97 workaround for strange hardware
1798 See "AC97 Quirk Option" section below.
1800 This module supports one chip and autoprobe.
1802 Note: on some SMP motherboards like MSI 694D the interrupts might
1803 not be generated properly. In such a case, please try to
1804 set the SMP (or MPS) version on BIOS to 1.1 instead of
1805 default value 1.4. Then the interrupt number will be
1806 assigned under 15. You might also upgrade your BIOS.
1808 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1809 channels as the first PCM. On these channels, up to 4
1810 streams can be played at the same time, and the controller
1811 can perform sample rate conversion with separate rates for
1813 As default (dxs_support = 0), 48k fixed rate is chosen
1814 except for the known devices since the output is often
1815 noisy except for 48k on some mother boards due to the
1817 Please try once dxs_support=5 and if it works on other
1818 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1819 know the PCI subsystem vendor/device id's (output of
1821 If dxs_support=5 does not work, try dxs_support=4; if it
1822 doesn't work too, try dxs_support=1. (dxs_support=1 is
1823 usually for old motherboards. The correct implemented
1824 board should work with 4 or 5.) If it still doesn't
1825 work and the default setting is ok, dxs_support=3 is the
1826 right choice. If the default setting doesn't work at all,
1827 try dxs_support=2 to disable the DXS channels.
1828 In any cases, please let us know the result and the
1829 subsystem vendor/device ids. See "Links and Addresses"
1832 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1833 additionally. The mpu_port option is for VIA686 chips only.
1835 The power-management is supported.
1837 Module snd-via82xx-modem
1838 ------------------------
1840 Module for VIA82xx AC97 modem
1842 ac97_clock - AC'97 codec clock base (default 48000Hz)
1844 This module supports one card and autoprobe.
1846 Note: The default index value of this module is -2, i.e. the first
1849 The power-management is supported.
1854 Module for virtual rawmidi devices.
1855 This module creates virtual rawmidi devices which communicate
1856 to the corresponding ALSA sequencer ports.
1858 midi_devs - MIDI devices # (1-4, default=4)
1860 This module supports multiple cards.
1865 Module for sound cards based on the Asus AV100/AV200 chips,
1866 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), and Essence STX.
1868 This module supports autoprobe and multiple cards.
1873 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1875 mic - Enable Microphone on V222 Mic (NYI)
1876 ibl - Capture IBL size. (default = 0, minimum size)
1878 This module supports multiple cards.
1880 When the driver is compiled as a module and the hotplug firmware
1881 is supported, the firmware data is loaded via hotplug automatically.
1882 Install the necessary firmware files in alsa-firmware package.
1883 When no hotplug fw loader is available, you need to load the
1884 firmware via vxloader utility in alsa-tools package. To invoke
1885 vxloader automatically, add the following to /etc/modprobe.conf
1887 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1889 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1890 /etc/modules.conf, instead.)
1891 IBL size defines the interrupts period for PCM. The smaller size
1892 gives smaller latency but leads to more CPU consumption, too.
1893 The size is usually aligned to 126. As default (=0), the smallest
1894 size is chosen. The possible IBL values can be found in
1895 /proc/asound/cardX/vx-status proc file.
1897 The power-management is supported.
1902 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1904 ibl - Capture IBL size. (default = 0, minimum size)
1906 This module supports multiple cards. The module is compiled only when
1907 PCMCIA is supported on kernel.
1909 With the older 2.6.x kernel, to activate the driver via the card
1910 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1911 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1912 longer require a config file.
1914 When the driver is compiled as a module and the hotplug firmware
1915 is supported, the firmware data is loaded via hotplug automatically.
1916 Install the necessary firmware files in alsa-firmware package.
1917 When no hotplug fw loader is available, you need to load the
1918 firmware via vxloader utility in alsa-tools package.
1920 About capture IBL, see the description of snd-vx222 module.
1922 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
1925 The power-management is supported.
1930 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1932 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1933 1 (auto-detect for YMF744/754 only)
1934 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1935 1 (auto-detect for YMF744/754 only)
1936 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1938 rear_switch - enable shared rear/line-in switch (bool)
1940 This module supports autoprobe and multiple chips.
1942 The power-management is supported.
1944 Module snd-pdaudiocf
1945 --------------------
1947 Module for Sound Core PDAudioCF sound card.
1949 The power-management is supported.
1955 The ac97_quirk option is used to enable/override the workaround for
1956 specific devices on drivers for on-board AC'97 controllers like
1957 snd-intel8x0. Some hardware have swapped output pins between Master
1958 and Headphone, or Surround (thanks to confusion of AC'97
1959 specifications from version to version :-)
1961 The driver provides the auto-detection of known problematic devices,
1962 but some might be unknown or wrongly detected. In such a case, pass
1963 the proper value with this option.
1965 The following strings are accepted:
1966 - default Don't override the default setting
1967 - none Disable the quirk
1968 - hp_only Bind Master and Headphone controls as a single control
1969 - swap_hp Swap headphone and master controls
1970 - swap_surround Swap master and surround controls
1971 - ad_sharing For AD1985, turn on OMS bit and use headphone
1972 - alc_jack For ALC65x, turn on the jack sense mode
1973 - inv_eapd Inverted EAPD implementation
1974 - mute_led Bind EAPD bit for turning on/off mute LED
1976 For backward compatibility, the corresponding integer value -1, 0,
1977 ... are accepted, too.
1979 For example, if "Master" volume control has no effect on your device
1980 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1983 Configuring Non-ISAPNP Cards
1984 ============================
1986 When the kernel is configured with ISA-PnP support, the modules
1987 supporting the isapnp cards will have module options "isapnp".
1988 If this option is set, *only* the ISA-PnP devices will be probed.
1989 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1990 together with the proper i/o and irq configuration.
1992 When the kernel is configured without ISA-PnP support, isapnp option
1993 will be not built in.
1996 Module Autoloading Support
1997 ==========================
1999 The ALSA drivers can be loaded automatically on demand by defining
2000 module aliases. The string 'snd-card-%1' is requested for ALSA native
2001 devices where %i is sound card number from zero to seven.
2003 To auto-load an ALSA driver for OSS services, define the string
2004 'sound-slot-%i' where %i means the slot number for OSS, which
2005 corresponds to the card index of ALSA. Usually, define this
2006 as the same card module.
2008 An example configuration for a single emu10k1 card is like below:
2009 ----- /etc/modprobe.conf
2010 alias snd-card-0 snd-emu10k1
2011 alias sound-slot-0 snd-emu10k1
2012 ----- /etc/modprobe.conf
2014 The available number of auto-loaded sound cards depends on the module
2015 option "cards_limit" of snd module. As default it's set to 1.
2016 To enable the auto-loading of multiple cards, specify the number of
2017 sound cards in that option.
2019 When multiple cards are available, it'd better to specify the index
2020 number for each card via module option, too, so that the order of
2021 cards is kept consistent.
2023 An example configuration for two sound cards is like below:
2025 ----- /etc/modprobe.conf
2027 options snd cards_limit=2
2028 alias snd-card-0 snd-interwave
2029 alias snd-card-1 snd-ens1371
2030 options snd-interwave index=0
2031 options snd-ens1371 index=1
2033 alias sound-slot-0 snd-interwave
2034 alias sound-slot-1 snd-ens1371
2035 ----- /etc/modprobe.conf
2037 In this example, the interwave card is always loaded as the first card
2038 (index 0) and ens1371 as the second (index 1).
2040 Alternative (and new) way to fixate the slot assignment is to use
2041 "slots" option of snd module. In the case above, specify like the
2044 options snd slots=snd-interwave,snd-ens1371
2046 Then, the first slot (#0) is reserved for snd-interwave driver, and
2047 the second (#1) for snd-ens1371. You can omit index option in each
2048 driver if slots option is used (although you can still have them at
2049 the same time as long as they don't conflict).
2051 The slots option is especially useful for avoiding the possible
2052 hot-plugging and the resultant slot conflict. For example, in the
2053 case above again, the first two slots are already reserved. If any
2054 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2055 snd-ens1371, it will be assigned to the third or later slot.
2057 When a module name is given with '!', the slot will be given for any
2058 modules but that name. For example, "slots=!snd-pcsp" will reserve
2059 the first slot for any modules but snd-pcsp.
2062 ALSA PCM devices to OSS devices mapping
2063 =======================================
2065 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2066 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2067 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2068 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2069 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2070 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2071 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2072 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2073 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2075 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2076 sound card number and second means device number. The ALSA devices
2077 have either 'c' or 'p' suffix indicating the direction, capture and
2078 playback, respectively.
2080 Please note that the device mapping above may be varied via the module
2081 options of snd-pcm-oss module.
2084 Proc interfaces (/proc/asound)
2085 ==============================
2087 /proc/asound/card#/pcm#[cp]/oss
2088 -------------------------------
2089 String "erase" - erase all additional informations about OSS applications
2090 String "<app_name> <fragments> <fragment_size> [<options>]"
2092 <app_name> - name of application with (higher priority) or without path
2093 <fragments> - number of fragments or zero if auto
2094 <fragment_size> - size of fragment in bytes or zero if auto
2095 <options> - optional parameters
2096 - disable the application tries to open a pcm device for
2097 this channel but does not want to use it.
2098 (Cause a bug or mmap needs)
2099 It's good for Quake etc...
2100 - direct don't use plugins
2101 - block force block mode (rvplayer)
2102 - non-block force non-block mode
2103 - whole-frag write only whole fragments (optimization affecting
2105 - no-silence do not fill silence ahead to avoid clicks
2106 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2107 instead of filled blocks
2109 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2110 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2111 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2114 Early Buffer Allocation
2115 =======================
2117 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2118 sometimes it's too late to find such spaces when the driver module is
2119 actually loaded due to memory fragmentation. You can pre-allocate the
2120 PCM buffers by loading snd-page-alloc module and write commands to its
2121 proc file in prior, for example, in the early boot stage like
2122 /etc/init.d/*.local scripts.
2124 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2125 usage of page allocation. In writing, you can send the following
2126 commands to the snd-page-alloc driver:
2128 - add VENDOR DEVICE MASK SIZE BUFFERS
2130 VENDOR and DEVICE are PCI vendor and device IDs. They take
2131 integer numbers (0x prefix is needed for the hex).
2132 MASK is the PCI DMA mask. Pass 0 if not restricted.
2133 SIZE is the size of each buffer to allocate. You can pass
2134 k and m suffix for KB and MB. The max number is 16MB.
2135 BUFFERS is the number of buffers to allocate. It must be greater
2136 than 0. The max number is 4.
2140 This will erase the all pre-allocated buffers which are not in
2147 ALSA project homepage
2148 http://www.alsa-project.org
2151 http://bugzilla.kernel.org/
2154 mailto:alsa-devel@alsa-project.org
2157 http://www.alsa-project.org/alsa-info.sh
git://ftp.safe.ca / safe / jmp / linux-2.6 / blob