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2 Advanced Linux Sound Architecture - Driver
3 ==========================================
4 Configuration guide
7 Kernel Configuration
8 ====================
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
27 using isapnptools.
30 Creating ALSA devices
31 =====================
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'.
38 Module parameters
39 =================
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.
47 Module snd
48 ----------
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
54 - Default: 116
55 cards_limit
56 - limiting card index for auto-loading (1-8)
57 - Default: 1
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.
70 Module snd-pcm-oss
71 ------------------
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.
77 - Default: 0
78 adsp_map - PCM device number maps assigned to the 2st OSS device.
79 - Default: 1
80 nonblock_open
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).
94 Module snd-rawmidi
95 ------------------
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.
101 - Default: 0
102 amidi_map - MIDI device number maps assigned to the 2st OSS device.
103 - Default: 1
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
115 - Default: -1
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
122 identifying the card
123 enable - enable card
124 - Default: enabled, for PCI and ISA PnP cards
126 Module snd-adlib
127 ----------------
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
136 synthesis.
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
154 Module snd-ad1816a
155 ------------------
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.
163 Module snd-ad1848
164 -----------------
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.
177 Module snd-ad1889
178 -----------------
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.
187 Module snd-ali5451
188 ------------------
190 Module for ALi M5451 PCI chip.
192 pcm_channels - Number of hardware channels assigned for PCM
193 spdif - Support SPDIF I/O
194 - Default: disabled
196 This module supports one chip and autoprobe.
198 The power-management is supported.
200 Module snd-als100
201 -----------------
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.
209 Module snd-als300
210 -----------------
212 Module for Avance Logic ALS300 and ALS300+
214 This module supports multiple cards.
216 The power-management is supported.
218 Module snd-als4000
219 ------------------
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.
230 Module snd-asihpi
231 -----------------
233 Module for AudioScience ASI soundcards
235 enable_hpi_hwdep - enable HPI hwdep for AudioScience soundcard
237 This module supports multiple cards.
238 The driver requires the firmware loader support on kernel.
240 Module snd-atiixp
241 -----------------
243 Module for ATI IXP 150/200/250/400 AC97 controllers.
245 ac97_clock - AC'97 clock (default = 48000)
246 ac97_quirk - AC'97 workaround for strange hardware
247 See "AC97 Quirk Option" section below.
248 ac97_codec - Workaround to specify which AC'97 codec
249 instead of probing. If this works for you
250 file a bug with your `lspci -vn` output.
251 -2 -- Force probing.
252 -1 -- Default behavior.
253 0-2 -- Use the specified codec.
254 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
256 This module supports one card and autoprobe.
258 ATI IXP has two different methods to control SPDIF output. One is
259 over AC-link and another is over the "direct" SPDIF output. The
260 implementation depends on the motherboard, and you'll need to
261 choose the correct one via spdif_aclink module option.
263 The power-management is supported.
265 Module snd-atiixp-modem
266 -----------------------
268 Module for ATI IXP 150/200/250 AC97 modem controllers.
270 This module supports one card and autoprobe.
272 Note: The default index value of this module is -2, i.e. the first
273 slot is excluded.
275 The power-management is supported.
277 Module snd-au8810, snd-au8820, snd-au8830
278 -----------------------------------------
280 Module for Aureal Vortex, Vortex2 and Advantage device.
282 pcifix - Control PCI workarounds
283 0 = Disable all workarounds
284 1 = Force the PCI latency of the Aureal card to 0xff
285 2 = Force the Extend PCI#2 Internal Master for Efficient
286 Handling of Dummy Requests on the VIA KT133 AGP Bridge
287 3 = Force both settings
288 255 = Autodetect what is required (default)
290 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
291 EQ, mpu401, gameport. A3D and wavetable support are still in development.
292 Development and reverse engineering work is being coordinated at
293 http://savannah.nongnu.org/projects/openvortex/
294 SPDIF output has a copy of the AC97 codec output, unless you use the
295 "spdif" pcm device, which allows raw data passthru.
296 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
297 Advantage.
299 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
300 control correctly. If you have problems regarding this, try
301 another ALSA compliant mixer (alsamixer works).
303 Module snd-azt1605
304 ------------------
306 Module for Aztech Sound Galaxy soundcards based on the Aztech AZT1605
307 chipset.
309 port - port # for BASE (0x220,0x240,0x260,0x280)
310 wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
311 irq - IRQ # for WSS (7,9,10,11)
312 dma1 - DMA # for WSS playback (0,1,3)
313 dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
314 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
315 mpu_irq - IRQ # for MPU-401 UART (3,5,7,9), -1 = disabled (default)
316 fm_port - port # for OPL3 (0x388), -1 = disabled (default)
318 This module supports multiple cards. It does not support autoprobe: port,
319 wss_port, irq and dma1 have to be specified. The other values are
320 optional.
322 "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
323 or the value stored in the card's EEPROM for cards that have an EEPROM and
324 their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
325 be chosen freely from the options enumerated above.
327 If dma2 is specified and different from dma1, the card will operate in
328 full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
329 enable capture since only channels 0 and 1 are available for capture.
331 Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
332 mpu_port=0x330 mpu_irq=9 fm_port=0x388".
334 Whatever IRQ and DMA channels you pick, be sure to reserve them for
335 legacy ISA in your BIOS.
337 Module snd-azt2316
338 ------------------
340 Module for Aztech Sound Galaxy soundcards based on the Aztech AZT2316
341 chipset.
343 port - port # for BASE (0x220,0x240,0x260,0x280)
344 wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
345 irq - IRQ # for WSS (7,9,10,11)
346 dma1 - DMA # for WSS playback (0,1,3)
347 dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
348 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
349 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10), -1 = disabled (default)
350 fm_port - port # for OPL3 (0x388), -1 = disabled (default)
352 This module supports multiple cards. It does not support autoprobe: port,
353 wss_port, irq and dma1 have to be specified. The other values are
354 optional.
356 "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
357 or the value stored in the card's EEPROM for cards that have an EEPROM and
358 their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
359 be chosen freely from the options enumerated above.
361 If dma2 is specified and different from dma1, the card will operate in
362 full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
363 enable capture since only channels 0 and 1 are available for capture.
365 Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
366 mpu_port=0x330 mpu_irq=9 fm_port=0x388".
368 Whatever IRQ and DMA channels you pick, be sure to reserve them for
369 legacy ISA in your BIOS.
371 Module snd-aw2
372 --------------
374 Module for Audiowerk2 sound card
376 This module supports multiple cards.
378 Module snd-azt2320
379 ------------------
381 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
383 This module supports multiple cards, PnP and autoprobe.
385 The power-management is supported.
387 Module snd-azt3328
388 ------------------
390 Module for sound cards based on Aztech AZF3328 PCI chip.
392 joystick - Enable joystick (default off)
394 This module supports multiple cards.
396 Module snd-bt87x
397 ----------------
399 Module for video cards based on Bt87x chips.
401 digital_rate - Override the default digital rate (Hz)
402 load_all - Load the driver even if the card model isn't known
404 This module supports multiple cards.
406 Note: The default index value of this module is -2, i.e. the first
407 slot is excluded.
409 Module snd-ca0106
410 -----------------
412 Module for Creative Audigy LS and SB Live 24bit
414 This module supports multiple cards.
417 Module snd-cmi8330
418 ------------------
420 Module for sound cards based on C-Media CMI8330 ISA chips.
422 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
424 with isapnp=0, the following options are available:
426 wssport - port # for CMI8330 chip (WSS)
427 wssirq - IRQ # for CMI8330 chip (WSS)
428 wssdma - first DMA # for CMI8330 chip (WSS)
429 sbport - port # for CMI8330 chip (SB16)
430 sbirq - IRQ # for CMI8330 chip (SB16)
431 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
432 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
433 fmport - (optional) OPL3 I/O port
434 mpuport - (optional) MPU401 I/O port
435 mpuirq - (optional) MPU401 irq #
437 This module supports multiple cards and autoprobe.
439 The power-management is supported.
441 Module snd-cmipci
442 -----------------
444 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
446 mpu_port - port address of MIDI interface (8338 only):
447 0x300,0x310,0x320,0x330 = legacy port,
448 0 = disable (default)
449 fm_port - port address of OPL-3 FM synthesizer (8x38 only):
450 0x388 = legacy port,
451 1 = integrated PCI port (default on 8738),
452 0 = disable
453 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
454 (default = 1)
455 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
457 This module supports autoprobe and multiple cards.
459 The power-management is supported.
461 Module snd-cs4231
462 -----------------
464 Module for sound cards based on CS4231 ISA chips.
466 port - port # for CS4231 chip
467 mpu_port - port # for MPU-401 UART (optional), -1 = disable
468 irq - IRQ # for CS4231 chip
469 mpu_irq - IRQ # for MPU-401 UART
470 dma1 - first DMA # for CS4231 chip
471 dma2 - second DMA # for CS4231 chip
473 This module supports multiple cards. This module does not support autoprobe
474 thus main port must be specified!!! Other ports are optional.
476 The power-management is supported.
478 Module snd-cs4236
479 -----------------
481 Module for sound cards based on CS4232/CS4232A,
482 CS4235/CS4236/CS4236B/CS4237B/
483 CS4238B/CS4239 ISA chips.
485 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
487 with isapnp=0, the following options are available:
489 port - port # for CS4236 chip (PnP setup - 0x534)
490 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
491 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
492 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
493 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
494 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
495 dma1 - first DMA # for CS4236 chip (0,1,3)
496 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
498 This module supports multiple cards. This module does not support autoprobe
499 (if ISA PnP is not used) thus main port and control port must be
500 specified!!! Other ports are optional.
502 The power-management is supported.
504 This module is aliased as snd-cs4232 since it provides the old
505 snd-cs4232 functionality, too.
507 Module snd-cs4281
508 -----------------
510 Module for Cirrus Logic CS4281 soundchip.
512 dual_codec - Secondary codec ID (0 = disable, default)
514 This module supports multiple cards.
516 The power-management is supported.
518 Module snd-cs46xx
519 -----------------
521 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
522 CS4624/CS4630/CS4280 PCI chips.
524 external_amp - Force to enable external amplifier.
525 thinkpad - Force to enable Thinkpad's CLKRUN control.
526 mmap_valid - Support OSS mmap mode (default = 0).
528 This module supports multiple cards and autoprobe.
529 Usually external amp and CLKRUN controls are detected automatically
530 from PCI sub vendor/device ids. If they don't work, give the options
531 above explicitly.
533 The power-management is supported.
535 Module snd-cs5530
536 _________________
538 Module for Cyrix/NatSemi Geode 5530 chip.
540 Module snd-cs5535audio
541 ----------------------
543 Module for multifunction CS5535 companion PCI device
545 The power-management is supported.
547 Module snd-ctxfi
548 ----------------
550 Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
551 * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
552 * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
553 * Creative Sound Blaster X-Fi Titanium Professional Audio
554 * Creative Sound Blaster X-Fi Titanium
555 * Creative Sound Blaster X-Fi Elite Pro
556 * Creative Sound Blaster X-Fi Platinum
557 * Creative Sound Blaster X-Fi Fatal1ty
558 * Creative Sound Blaster X-Fi XtremeGamer
559 * Creative Sound Blaster X-Fi XtremeMusic
561 reference_rate - reference sample rate, 44100 or 48000 (default)
562 multiple - multiple to ref. sample rate, 1 or 2 (default)
563 subsystem - override the PCI SSID for probing; the value
564 consists of SSVID << 16 | SSDID. The default is
565 zero, which means no override.
567 This module supports multiple cards.
569 Module snd-darla20
570 ------------------
572 Module for Echoaudio Darla20
574 This module supports multiple cards.
575 The driver requires the firmware loader support on kernel.
577 Module snd-darla24
578 ------------------
580 Module for Echoaudio Darla24
582 This module supports multiple cards.
583 The driver requires the firmware loader support on kernel.
585 Module snd-dt019x
586 -----------------
588 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
589 only)
591 This module supports multiple cards. This module is enabled only with
592 ISA PnP support.
594 The power-management is supported.
596 Module snd-dummy
597 ----------------
599 Module for the dummy sound card. This "card" doesn't do any output
600 or input, but you may use this module for any application which
601 requires a sound card (like RealPlayer).
603 pcm_devs - Number of PCM devices assigned to each card
604 (default = 1, up to 4)
605 pcm_substreams - Number of PCM substreams assigned to each PCM
606 (default = 8, up to 128)
607 hrtimer - Use hrtimer (=1, default) or system timer (=0)
608 fake_buffer - Fake buffer allocations (default = 1)
610 When multiple PCM devices are created, snd-dummy gives different
611 behavior to each PCM device:
612 0 = interleaved with mmap support
613 1 = non-interleaved with mmap support
614 2 = interleaved without mmap
615 3 = non-interleaved without mmap
617 As default, snd-dummy drivers doesn't allocate the real buffers
618 but either ignores read/write or mmap a single dummy page to all
619 buffer pages, in order to save the resouces. If your apps need
620 the read/ written buffer data to be consistent, pass fake_buffer=0
621 option.
623 The power-management is supported.
625 Module snd-echo3g
626 -----------------
628 Module for Echoaudio 3G cards (Gina3G/Layla3G)
630 This module supports multiple cards.
631 The driver requires the firmware loader support on kernel.
633 Module snd-emu10k1
634 ------------------
636 Module for EMU10K1/EMU10k2 based PCI sound cards.
637 * Sound Blaster Live!
638 * Sound Blaster PCI 512
639 * Emu APS (partially supported)
640 * Sound Blaster Audigy
642 extin - bitmap of available external inputs for FX8010 (see bellow)
643 extout - bitmap of available external outputs for FX8010 (see bellow)
644 seq_ports - allocated sequencer ports (4 by default)
645 max_synth_voices - limit of voices used for wavetable (64 by default)
646 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
647 given in MB unit. Default value is 128.
648 enable_ir - enable IR
650 This module supports multiple cards and autoprobe.
652 Input & Output configurations [extin/extout]
653 * Creative Card wo/Digital out [0x0003/0x1f03]
654 * Creative Card w/Digital out [0x0003/0x1f0f]
655 * Creative Card w/Digital CD in [0x000f/0x1f0f]
656 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
657 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
658 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
659 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
660 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
661 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
662 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
663 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
664 * Creative Card all ins and outs [0x3fff/0x7fff]
666 The power-management is supported.
668 Module snd-emu10k1x
669 -------------------
671 Module for Creative Emu10k1X (SB Live Dell OEM version)
673 This module supports multiple cards.
675 Module snd-ens1370
676 ------------------
678 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
679 * SoundBlaster PCI 64
680 * SoundBlaster PCI 128
682 joystick - Enable joystick (default off)
684 This module supports multiple cards and autoprobe.
686 The power-management is supported.
688 Module snd-ens1371
689 ------------------
691 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
692 * SoundBlaster PCI 64
693 * SoundBlaster PCI 128
694 * SoundBlaster Vibra PCI
696 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
697 0 = disable (default), 1 = auto-detect
699 This module supports multiple cards and autoprobe.
701 The power-management is supported.
703 Module snd-es1688
704 -----------------
706 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
708 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
709 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
710 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
711 fm_port - port # for OPL3 (option; share the same port as default)
713 with isapnp=0, the following additional options are available:
714 port - port # for ES-1688 chip (0x220,0x240,0x260)
715 irq - IRQ # for ES-1688 chip (5,7,9,10)
716 dma8 - DMA # for ES-1688 chip (0,1,3)
718 This module supports multiple cards and autoprobe (without MPU-401 port)
719 and PnP with the ES968 chip.
721 Module snd-es18xx
722 -----------------
724 Module for ESS AudioDrive ES-18xx sound cards.
726 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
728 with isapnp=0, the following options are available:
730 port - port # for ES-18xx chip (0x220,0x240,0x260)
731 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
732 fm_port - port # for FM (optional, not used)
733 irq - IRQ # for ES-18xx chip (5,7,9,10)
734 dma1 - first DMA # for ES-18xx chip (0,1,3)
735 dma2 - first DMA # for ES-18xx chip (0,1,3)
737 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
738 port if native ISA PnP routines are not used).
739 When dma2 is equal with dma1, the driver works as half-duplex.
741 The power-management is supported.
743 Module snd-es1938
744 -----------------
746 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
748 This module supports multiple cards and autoprobe.
750 The power-management is supported.
752 Module snd-es1968
753 -----------------
755 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
757 total_bufsize - total buffer size in kB (1-4096kB)
758 pcm_substreams_p - playback channels (1-8, default=2)
759 pcm_substreams_c - capture channels (1-8, default=0)
760 clock - clock (0 = auto-detection)
761 use_pm - support the power-management (0 = off, 1 = on,
762 2 = auto (default))
763 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
764 joystick - enable joystick (default off)
766 This module supports multiple cards and autoprobe.
768 The power-management is supported.
770 Module snd-fm801
771 ----------------
773 Module for ForteMedia FM801 based PCI sound cards.
775 tea575x_tuner - Enable TEA575x tuner
776 - 1 = MediaForte 256-PCS
777 - 2 = MediaForte 256-PCPR
778 - 3 = MediaForte 64-PCR
779 - High 16-bits are video (radio) device number + 1
780 - example: 0x10002 (MediaForte 256-PCPR, device 1)
782 This module supports multiple cards and autoprobe.
784 The power-management is supported.
786 Module snd-gina20
787 -----------------
789 Module for Echoaudio Gina20
791 This module supports multiple cards.
792 The driver requires the firmware loader support on kernel.
794 Module snd-gina24
795 -----------------
797 Module for Echoaudio Gina24
799 This module supports multiple cards.
800 The driver requires the firmware loader support on kernel.
802 Module snd-gusclassic
803 ---------------------
805 Module for Gravis UltraSound Classic sound card.
807 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
808 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
809 dma1 - DMA # for GF1 chip (1,3,5,6,7)
810 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
811 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
812 voices - GF1 voices limit (14-32)
813 pcm_voices - reserved PCM voices
815 This module supports multiple cards and autoprobe.
817 Module snd-gusextreme
818 ---------------------
820 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
822 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
823 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
824 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
825 irq - IRQ # for ES-1688 chip (5,7,9,10)
826 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
827 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
828 dma8 - DMA # for ES-1688 chip (0,1,3)
829 dma1 - DMA # for GF1 chip (1,3,5,6,7)
830 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
831 voices - GF1 voices limit (14-32)
832 pcm_voices - reserved PCM voices
834 This module supports multiple cards and autoprobe (without MPU-401 port).
836 Module snd-gusmax
837 -----------------
839 Module for Gravis UltraSound MAX sound card.
841 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
842 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
843 dma1 - DMA # for GF1 chip (1,3,5,6,7)
844 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
845 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
846 voices - GF1 voices limit (14-32)
847 pcm_voices - reserved PCM voices
849 This module supports multiple cards and autoprobe.
851 Module snd-hda-intel
852 --------------------
854 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10,
855 PCH, SCH),
856 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
857 RV630, RV635, RV670, RV770,
858 VIA VT8251/VT8237A,
859 SIS966, ULI M5461
861 [Multiple options for each card instance]
862 model - force the model name
863 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
864 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
865 When the bit 8 (0x100) is set, the lower 8 bits are used
866 as the "fixed" codec slots; i.e. the driver probes the
867 slots regardless what hardware reports back
868 probe_only - Only probing and no codec initialization (default=off);
869 Useful to check the initial codec status for debugging
870 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
871 Passing -1 will make the driver to choose the appropriate
872 value based on the controller chip.
873 patch - Specifies the early "patch" files to modify the HD-audio
874 setup before initializing the codecs. This option is
875 available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
876 See HD-Audio.txt for details.
877 beep_mode - Selects the beep registration mode (0=off, 1=on, 2=
878 dynamic registration via mute switch on/off); the default
879 value is set via CONFIG_SND_HDA_INPUT_BEEP_MODE kconfig.
881 [Single (global) options]
882 single_cmd - Use single immediate commands to communicate with
883 codecs (for debugging only)
884 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
885 power_save - Automatic power-saving timeout (in second, 0 =
886 disable)
887 power_save_controller - Reset HD-audio controller in power-saving mode
888 (default = on)
890 This module supports multiple cards and autoprobe.
892 See Documentation/sound/alsa/HD-Audio.txt for more details about
893 HD-audio driver.
895 Each codec may have a model table for different configurations.
896 If your machine isn't listed there, the default (usually minimal)
897 configuration is set up. You can pass "model=<name>" option to
898 specify a certain model in such a case. There are different
899 models depending on the codec chip. The list of available models
900 is found in HD-Audio-Models.txt
902 The model name "genric" is treated as a special case. When this
903 model is given, the driver uses the generic codec parser without
904 "codec-patch". It's sometimes good for testing and debugging.
906 If the default configuration doesn't work and one of the above
907 matches with your device, report it together with alsa-info.sh
908 output (with --no-upload option) to kernel bugzilla or alsa-devel
909 ML (see the section "Links and Addresses").
911 power_save and power_save_controller options are for power-saving
912 mode. See powersave.txt for details.
914 Note 2: If you get click noises on output, try the module option
915 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
916 register value without FIFO size correction as the current
917 DMA pointer. position_fix=2 will make the driver to use
918 the position buffer instead of reading SD_LPIB register.
919 (Usually SD_LPIB register is more accurate than the
920 position buffer.)
922 NB: If you get many "azx_get_response timeout" messages at
923 loading, it's likely a problem of interrupts (e.g. ACPI irq
924 routing). Try to boot with options like "pci=noacpi". Also, you
925 can try "single_cmd=1" module option. This will switch the
926 communication method between HDA controller and codecs to the
927 single immediate commands instead of CORB/RIRB. Basically, the
928 single command mode is provided only for BIOS, and you won't get
929 unsolicited events, too. But, at least, this works independently
930 from the irq. Remember this is a last resort, and should be
931 avoided as much as possible...
933 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
934 On some hardwares, you may need to add a proper probe_mask option
935 to avoid the "azx_get_response timeout" problem above, instead.
936 This occurs when the access to non-existing or non-working codec slot
937 (likely a modem one) causes a stall of the communication via HD-audio
938 bus. You can see which codec slots are probed by enabling
939 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
940 proc files. Then limit the slots to probe by probe_mask option.
941 For example, probe_mask=1 means to probe only the first slot, and
942 probe_mask=4 means only the third slot.
944 The power-management is supported.
946 Module snd-hdsp
947 ---------------
949 Module for RME Hammerfall DSP audio interface(s)
951 This module supports multiple cards.
953 Note: The firmware data can be automatically loaded via hotplug
954 when CONFIG_FW_LOADER is set. Otherwise, you need to load
955 the firmware via hdsploader utility included in alsa-tools
956 package.
957 The firmware data is found in alsa-firmware package.
959 Note: snd-page-alloc module does the job which snd-hammerfall-mem
960 module did formerly. It will allocate the buffers in advance
961 when any HDSP cards are found. To make the buffer
962 allocation sure, load snd-page-alloc module in the early
963 stage of boot sequence. See "Early Buffer Allocation"
964 section.
966 Module snd-hdspm
967 ----------------
969 Module for RME HDSP MADI board.
971 precise_ptr - Enable precise pointer, or disable.
972 line_outs_monitor - Send playback streams to analog outs by default.
973 enable_monitor - Enable Analog Out on Channel 63/64 by default.
975 See hdspm.txt for details.
977 Module snd-ice1712
978 ------------------
980 Module for Envy24 (ICE1712) based PCI sound cards.
981 * MidiMan M Audio Delta 1010
982 * MidiMan M Audio Delta 1010LT
983 * MidiMan M Audio Delta DiO 2496
984 * MidiMan M Audio Delta 66
985 * MidiMan M Audio Delta 44
986 * MidiMan M Audio Delta 410
987 * MidiMan M Audio Audiophile 2496
988 * TerraTec EWS 88MT
989 * TerraTec EWS 88D
990 * TerraTec EWX 24/96
991 * TerraTec DMX 6Fire
992 * TerraTec Phase 88
993 * Hoontech SoundTrack DSP 24
994 * Hoontech SoundTrack DSP 24 Value
995 * Hoontech SoundTrack DSP 24 Media 7.1
996 * Event Electronics, EZ8
997 * Digigram VX442
998 * Lionstracs, Mediastaton
999 * Terrasoniq TS 88
1001 model - Use the given board model, one of the following:
1002 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1003 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1004 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1005 phase88, mediastation
1006 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1007 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1008 in msec resolution, default value is 500 (0.5 sec)
1010 This module supports multiple cards and autoprobe. Note: The consumer part
1011 is not used with all Envy24 based cards (for example in the MidiMan Delta
1012 serie).
1014 Note: The supported board is detected by reading EEPROM or PCI
1015 SSID (if EEPROM isn't available). You can override the
1016 model by passing "model" module option in case that the
1017 driver isn't configured properly or you want to try another
1018 type for testing.
1020 Module snd-ice1724
1021 ------------------
1023 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1024 * MidiMan M Audio Revolution 5.1
1025 * MidiMan M Audio Revolution 7.1
1026 * MidiMan M Audio Audiophile 192
1027 * AMP Ltd AUDIO2000
1028 * TerraTec Aureon 5.1 Sky
1029 * TerraTec Aureon 7.1 Space
1030 * TerraTec Aureon 7.1 Universe
1031 * TerraTec Phase 22
1032 * TerraTec Phase 28
1033 * AudioTrak Prodigy 7.1
1034 * AudioTrak Prodigy 7.1 LT
1035 * AudioTrak Prodigy 7.1 XT
1036 * AudioTrak Prodigy 7.1 HIFI
1037 * AudioTrak Prodigy 7.1 HD2
1038 * AudioTrak Prodigy 192
1039 * Pontis MS300
1040 * Albatron K8X800 Pro II
1041 * Chaintech ZNF3-150
1042 * Chaintech ZNF3-250
1043 * Chaintech 9CJS
1044 * Chaintech AV-710
1045 * Shuttle SN25P
1046 * Onkyo SE-90PCI
1047 * Onkyo SE-200PCI
1048 * ESI Juli@
1049 * ESI Maya44
1050 * Hercules Fortissimo IV
1051 * EGO-SYS WaveTerminal 192M
1053 model - Use the given board model, one of the following:
1054 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1055 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
1056 juli, aureon51, aureon71, universe, ap192, k8x800,
1057 phase22, phase28, ms300, av710, se200pci, se90pci,
1058 fortissimo4, sn25p, WT192M, maya44
1060 This module supports multiple cards and autoprobe.
1062 Note: The supported board is detected by reading EEPROM or PCI
1063 SSID (if EEPROM isn't available). You can override the
1064 model by passing "model" module option in case that the
1065 driver isn't configured properly or you want to try another
1066 type for testing.
1068 Module snd-indigo
1069 -----------------
1071 Module for Echoaudio Indigo
1073 This module supports multiple cards.
1074 The driver requires the firmware loader support on kernel.
1076 Module snd-indigodj
1077 -------------------
1079 Module for Echoaudio Indigo DJ
1081 This module supports multiple cards.
1082 The driver requires the firmware loader support on kernel.
1084 Module snd-indigoio
1085 -------------------
1087 Module for Echoaudio Indigo IO
1089 This module supports multiple cards.
1090 The driver requires the firmware loader support on kernel.
1092 Module snd-intel8x0
1093 -------------------
1095 Module for AC'97 motherboards from Intel and compatibles.
1096 * Intel i810/810E, i815, i820, i830, i84x, MX440
1097 ICH5, ICH6, ICH7, 6300ESB, ESB2
1098 * SiS 7012 (SiS 735)
1099 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1100 CK8, CK8S, MCP501
1101 * AMD AMD768, AMD8111
1102 * ALi m5455
1104 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1105 ac97_quirk - AC'97 workaround for strange hardware
1106 See "AC97 Quirk Option" section below.
1107 buggy_irq - Enable workaround for buggy interrupts on some
1108 motherboards (default yes on nForce chips,
1109 otherwise off)
1110 buggy_semaphore - Enable workaround for hardwares with buggy
1111 semaphores (e.g. on some ASUS laptops)
1112 (default off)
1113 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1114 from the controller chip
1115 (0 = off, 1 = on, -1 = default)
1117 This module supports one chip and autoprobe.
1119 Note: the latest driver supports auto-detection of chip clock.
1120 if you still encounter too fast playback, specify the clock
1121 explicitly via the module option "ac97_clock=41194".
1123 Joystick/MIDI ports are not supported by this driver. If your
1124 motherboard has these devices, use the ns558 or snd-mpu401
1125 modules, respectively.
1127 The power-management is supported.
1129 Module snd-intel8x0m
1130 --------------------
1132 Module for Intel ICH (i8x0) chipset MC97 modems.
1133 * Intel i810/810E, i815, i820, i830, i84x, MX440
1134 ICH5, ICH6, ICH7
1135 * SiS 7013 (SiS 735)
1136 * NVidia NForce, NForce2, NForce2s, NForce3
1137 * AMD AMD8111
1138 * ALi m5455
1140 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1142 This module supports one card and autoprobe.
1144 Note: The default index value of this module is -2, i.e. the first
1145 slot is excluded.
1147 The power-management is supported.
1149 Module snd-interwave
1150 --------------------
1152 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1153 and other sound cards based on AMD InterWave (tm) chip.
1155 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1156 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1157 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1158 effect - 1 = InterWave effects enable (default 0);
1159 requires 8 voices
1160 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1162 with isapnp=0, the following options are available:
1164 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1165 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1166 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1167 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1169 This module supports multiple cards, autoprobe and ISA PnP.
1171 Module snd-interwave-stb
1172 ------------------------
1174 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1175 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1176 circuit for extended control of bass, treble and master volume.
1178 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1179 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1180 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1181 effect - 1 = InterWave effects enable (default 0);
1182 requires 8 voices
1183 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1185 with isapnp=0, the following options are available:
1187 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1188 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1189 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1190 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1191 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1193 This module supports multiple cards, autoprobe and ISA PnP.
1195 Module snd-jazz16
1196 -------------------
1198 Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
1199 MVD1216 + MVA416 + MVA514.
1201 port - port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
1202 irq - IRQ # for SB DSP chip (3,5,7,9,10,15)
1203 dma8 - DMA # for SB DSP chip (1,3)
1204 dma16 - DMA # for SB DSP chip (5,7)
1205 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1206 mpu_irq - MPU-401 irq # (2,3,5,7)
1208 This module supports multiple cards.
1210 Module snd-korg1212
1211 -------------------
1213 Module for Korg 1212 IO PCI card
1215 This module supports multiple cards.
1217 Module snd-layla20
1218 ------------------
1220 Module for Echoaudio Layla20
1222 This module supports multiple cards.
1223 The driver requires the firmware loader support on kernel.
1225 Module snd-layla24
1226 ------------------
1228 Module for Echoaudio Layla24
1230 This module supports multiple cards.
1231 The driver requires the firmware loader support on kernel.
1233 Module snd-lx6464es
1234 -------------------
1236 Module for Digigram LX6464ES boards
1238 This module supports multiple cards.
1240 Module snd-maestro3
1241 -------------------
1243 Module for Allegro/Maestro3 chips
1245 external_amp - enable external amp (enabled by default)
1246 amp_gpio - GPIO pin number for external amp (0-15) or
1247 -1 for default pin (8 for allegro, 1 for
1248 others)
1250 This module supports autoprobe and multiple chips.
1252 Note: the binding of amplifier is dependent on hardware.
1253 If there is no sound even though all channels are unmuted, try to
1254 specify other gpio connection via amp_gpio option.
1255 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1256 option.
1258 The power-management is supported.
1260 Module snd-mia
1261 ---------------
1263 Module for Echoaudio Mia
1265 This module supports multiple cards.
1266 The driver requires the firmware loader support on kernel.
1268 Module snd-miro
1269 ---------------
1271 Module for Miro soundcards: miroSOUND PCM 1 pro,
1272 miroSOUND PCM 12,
1273 miroSOUND PCM 20 Radio.
1275 port - Port # (0x530,0x604,0xe80,0xf40)
1276 irq - IRQ # (5,7,9,10,11)
1277 dma1 - 1st dma # (0,1,3)
1278 dma2 - 2nd dma # (0,1)
1279 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1280 mpu_irq - MPU-401 irq # (5,7,9,10)
1281 fm_port - FM Port # (0x388)
1282 wss - enable WSS mode
1283 ide - enable onboard ide support
1285 Module snd-mixart
1286 -----------------
1288 Module for Digigram miXart8 sound cards.
1290 This module supports multiple cards.
1291 Note: One miXart8 board will be represented as 4 alsa cards.
1292 See MIXART.txt for details.
1294 When the driver is compiled as a module and the hotplug firmware
1295 is supported, the firmware data is loaded via hotplug automatically.
1296 Install the necessary firmware files in alsa-firmware package.
1297 When no hotplug fw loader is available, you need to load the
1298 firmware via mixartloader utility in alsa-tools package.
1300 Module snd-mona
1301 ---------------
1303 Module for Echoaudio Mona
1305 This module supports multiple cards.
1306 The driver requires the firmware loader support on kernel.
1308 Module snd-mpu401
1309 -----------------
1311 Module for MPU-401 UART devices.
1313 port - port number or -1 (disable)
1314 irq - IRQ number or -1 (disable)
1315 pnp - PnP detection - 0 = disable, 1 = enable (default)
1317 This module supports multiple devices and PnP.
1319 Module snd-msnd-classic
1320 -----------------------
1322 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1323 soundcards.
1325 io - Port # for msnd-classic card
1326 irq - IRQ # for msnd-classic card
1327 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1328 0xe0000 or 0xe8000)
1329 write_ndelay - enable write ndelay (default = 1)
1330 calibrate_signal - calibrate signal (default = 0)
1331 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1332 digital - Digital daughterboard present (default = 0)
1333 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1334 reset - Reset all devices
1335 mpu_io - MPU401 I/O port
1336 mpu_irq - MPU401 irq#
1337 ide_io0 - IDE port #0
1338 ide_io1 - IDE port #1
1339 ide_irq - IDE irq#
1340 joystick_io - Joystick I/O port
1342 The driver requires firmware files "turtlebeach/msndinit.bin" and
1343 "turtlebeach/msndperm.bin" in the proper firmware directory.
1345 See Documentation/sound/oss/MultiSound for important information
1346 about this driver. Note that it has been discontinued, but the
1347 Voyetra Turtle Beach knowledge base entry for it is still available
1348 at
1349 http://www.turtlebeach.com
1351 Module snd-msnd-pinnacle
1352 ------------------------
1354 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1356 io - Port # for pinnacle/fiji card
1357 irq - IRQ # for pinnalce/fiji card
1358 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1359 0xe0000 or 0xe8000)
1360 write_ndelay - enable write ndelay (default = 1)
1361 calibrate_signal - calibrate signal (default = 0)
1362 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1364 The driver requires firmware files "turtlebeach/pndspini.bin" and
1365 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1367 Module snd-mtpav
1368 ----------------
1370 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1371 port).
1373 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1374 irq - IRQ # for MTPAV (7,5, default=7)
1375 hwports - number of supported hardware ports, default=8.
1377 Module supports only 1 card. This module has no enable option.
1379 Module snd-mts64
1380 ----------------
1382 Module for Ego Systems (ESI) Miditerminal 4140
1384 This module supports multiple devices.
1385 Requires parport (CONFIG_PARPORT).
1387 Module snd-nm256
1388 ----------------
1390 Module for NeoMagic NM256AV/ZX chips
1392 playback_bufsize - max playback frame size in kB (4-128kB)
1393 capture_bufsize - max capture frame size in kB (4-128kB)
1394 force_ac97 - 0 or 1 (disabled by default)
1395 buffer_top - specify buffer top address
1396 use_cache - 0 or 1 (disabled by default)
1397 vaio_hack - alias buffer_top=0x25a800
1398 reset_workaround - enable AC97 RESET workaround for some laptops
1399 reset_workaround2 - enable extended AC97 RESET workaround for some
1400 other laptops
1402 This module supports one chip and autoprobe.
1404 The power-management is supported.
1406 Note: on some notebooks the buffer address cannot be detected
1407 automatically, or causes hang-up during initialization.
1408 In such a case, specify the buffer top address explicitly via
1409 the buffer_top option.
1410 For example,
1411 Sony F250: buffer_top=0x25a800
1412 Sony F270: buffer_top=0x272800
1413 The driver supports only ac97 codec. It's possible to force
1414 to initialize/use ac97 although it's not detected. In such a
1415 case, use force_ac97=1 option - but *NO* guarantee whether it
1416 works!
1418 Note: The NM256 chip can be linked internally with non-AC97
1419 codecs. This driver supports only the AC97 codec, and won't work
1420 with machines with other (most likely CS423x or OPL3SAx) chips,
1421 even though the device is detected in lspci. In such a case, try
1422 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1423 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1424 and proper hardware parameters in the case without ISA PnP.
1426 Note: some laptops need a workaround for AC97 RESET. For the
1427 known hardware like Dell Latitude LS and Sony PCG-F305, this
1428 workaround is enabled automatically. For other laptops with a
1429 hard freeze, you can try reset_workaround=1 option.
1431 Note: Dell Latitude CSx laptops have another problem regarding
1432 AC97 RESET. On these laptops, reset_workaround2 option is
1433 turned on as default. This option is worth to try if the
1434 previous reset_workaround option doesn't help.
1436 Note: This driver is really crappy. It's a porting from the
1437 OSS driver, which is a result of black-magic reverse engineering.
1438 The detection of codec will fail if the driver is loaded *after*
1439 X-server as described above. You might be able to force to load
1440 the module, but it may result in hang-up. Hence, make sure that
1441 you load this module *before* X if you encounter this kind of
1442 problem.
1444 Module snd-opl3sa2
1445 ------------------
1447 Module for Yamaha OPL3-SA2/SA3 sound cards.
1449 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1451 with isapnp=0, the following options are available:
1453 port - control port # for OPL3-SA chip (0x370)
1454 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1455 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1456 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1457 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1458 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1459 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1460 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1462 This module supports multiple cards and ISA PnP. It does not support
1463 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1465 The power-management is supported.
1467 Module snd-opti92x-ad1848
1468 -------------------------
1470 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1471 Module works with OAK Mozart cards as well.
1473 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1475 with isapnp=0, the following options are available:
1477 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1478 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1479 fm_port - port # for OPL3 device (0x388)
1480 irq - IRQ # for WSS chip (5,7,9,10,11)
1481 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1482 dma1 - first DMA # for WSS chip (0,1,3)
1484 This module supports only one card, autoprobe and PnP.
1486 Module snd-opti92x-cs4231
1487 -------------------------
1489 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1491 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1493 with isapnp=0, the following options are available:
1495 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1496 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1497 fm_port - port # for OPL3 device (0x388)
1498 irq - IRQ # for WSS chip (5,7,9,10,11)
1499 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1500 dma1 - first DMA # for WSS chip (0,1,3)
1501 dma2 - second DMA # for WSS chip (0,1,3)
1503 This module supports only one card, autoprobe and PnP.
1505 Module snd-opti93x
1506 ------------------
1508 Module for sound cards based on OPTi 82c93x chips.
1510 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1512 with isapnp=0, the following options are available:
1514 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1515 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1516 fm_port - port # for OPL3 device (0x388)
1517 irq - IRQ # for WSS chip (5,7,9,10,11)
1518 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1519 dma1 - first DMA # for WSS chip (0,1,3)
1520 dma2 - second DMA # for WSS chip (0,1,3)
1522 This module supports only one card, autoprobe and PnP.
1524 Module snd-oxygen
1525 -----------------
1527 Module for sound cards based on the C-Media CMI8786/8787/8788 chip:
1528 * Asound A-8788
1529 * Asus Xonar DG
1530 * AuzenTech X-Meridian
1531 * AuzenTech X-Meridian 2G
1532 * Bgears b-Enspirer
1533 * Club3D Theatron DTS
1534 * HT-Omega Claro (plus)
1535 * HT-Omega Claro halo (XT)
1536 * Kuroutoshikou CMI8787-HG2PCI
1537 * Razer Barracuda AC-1
1538 * Sondigo Inferno
1539 * TempoTec HiFier Fantasia
1540 * TempoTec HiFier Serenade
1542 This module supports autoprobe and multiple cards.
1544 Module snd-pcsp
1545 -----------------
1547 Module for internal PC-Speaker.
1549 nopcm - Disable PC-Speaker PCM sound. Only beeps remain.
1550 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1552 This module supports system beeps, some kind of PCM playback and
1553 even a few mixer controls.
1555 Module snd-pcxhr
1556 ----------------
1558 Module for Digigram PCXHR boards
1560 This module supports multiple cards.
1562 Module snd-portman2x4
1563 ---------------------
1565 Module for Midiman Portman 2x4 parallel port MIDI interface
1567 This module supports multiple cards.
1569 Module snd-powermac (on ppc only)
1570 ---------------------------------
1572 Module for PowerMac, iMac and iBook on-board soundchips
1574 enable_beep - enable beep using PCM (enabled as default)
1576 Module supports autoprobe a chip.
1578 Note: the driver may have problems regarding endianess.
1580 The power-management is supported.
1582 Module snd-pxa2xx-ac97 (on arm only)
1583 ------------------------------------
1585 Module for AC97 driver for the Intel PXA2xx chip
1587 For ARM architecture only.
1589 The power-management is supported.
1591 Module snd-riptide
1592 ------------------
1594 Module for Conexant Riptide chip
1596 joystick_port - Joystick port # (default: 0x200)
1597 mpu_port - MPU401 port # (default: 0x330)
1598 opl3_port - OPL3 port # (default: 0x388)
1600 This module supports multiple cards.
1601 The driver requires the firmware loader support on kernel.
1602 You need to install the firmware file "riptide.hex" to the standard
1603 firmware path (e.g. /lib/firmware).
1605 Module snd-rme32
1606 ----------------
1608 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1609 Prodif96 and Prodif Gold) sound cards.
1611 This module supports multiple cards.
1613 Module snd-rme96
1614 ----------------
1616 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1618 This module supports multiple cards.
1620 Module snd-rme9652
1621 ------------------
1623 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1625 precise_ptr - Enable precise pointer (doesn't work reliably).
1626 (default = 0)
1628 This module supports multiple cards.
1630 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1631 module did formerly. It will allocate the buffers in advance
1632 when any RME9652 cards are found. To make the buffer
1633 allocation sure, load snd-page-alloc module in the early
1634 stage of boot sequence. See "Early Buffer Allocation"
1635 section.
1637 Module snd-sa11xx-uda1341 (on arm only)
1638 ---------------------------------------
1640 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1642 Module supports only one card.
1643 Module has no enable and index options.
1645 The power-management is supported.
1647 Module snd-sb8
1648 --------------
1650 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1651 SoundBlaster 2.0,
1652 SoundBlaster Pro
1654 port - port # for SB DSP chip (0x220,0x240,0x260)
1655 irq - IRQ # for SB DSP chip (5,7,9,10)
1656 dma8 - DMA # for SB DSP chip (1,3)
1658 This module supports multiple cards and autoprobe.
1660 The power-management is supported.
1662 Module snd-sb16 and snd-sbawe
1663 -----------------------------
1665 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1666 SoundBlaster AWE 32 (PnP),
1667 SoundBlaster AWE 64 PnP
1669 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1670 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1671 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1673 with isapnp=0, the following options are available:
1675 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1676 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1677 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1678 (snd-sbawe module only)
1679 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1680 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1681 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1683 This module supports multiple cards, autoprobe and ISA PnP.
1685 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1686 disable 16bit DMA with dma16 = -1 module parameter.
1687 Also, all Sound Blaster 16 type cards can operate in 16-bit
1688 half duplex mode through 8-bit DMA channel by disabling their
1689 16-bit DMA channel.
1691 The power-management is supported.
1693 Module snd-sc6000
1694 -----------------
1696 Module for Gallant SC-6000 soundcard and later models: SC-6600
1697 and SC-7000.
1699 port - Port # (0x220 or 0x240)
1700 mss_port - MSS Port # (0x530 or 0xe80)
1701 irq - IRQ # (5,7,9,10,11)
1702 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1703 dma - DMA # (1,3,0)
1704 joystick - Enable gameport - 0 = disable (default), 1 = enable
1706 This module supports multiple cards.
1708 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1710 Module snd-sscape
1711 -----------------
1713 Module for ENSONIQ SoundScape cards.
1715 port - Port # (PnP setup)
1716 wss_port - WSS Port # (PnP setup)
1717 irq - IRQ # (PnP setup)
1718 mpu_irq - MPU-401 IRQ # (PnP setup)
1719 dma - DMA # (PnP setup)
1720 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1721 joystick - Enable gameport - 0 = disable (default), 1 = enable
1723 This module supports multiple cards.
1725 The driver requires the firmware loader support on kernel.
1727 Module snd-sun-amd7930 (on sparc only)
1728 --------------------------------------
1730 Module for AMD7930 sound chips found on Sparcs.
1732 This module supports multiple cards.
1734 Module snd-sun-cs4231 (on sparc only)
1735 -------------------------------------
1737 Module for CS4231 sound chips found on Sparcs.
1739 This module supports multiple cards.
1741 Module snd-sun-dbri (on sparc only)
1742 -----------------------------------
1744 Module for DBRI sound chips found on Sparcs.
1746 This module supports multiple cards.
1748 Module snd-wavefront
1749 --------------------
1751 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1753 use_cs4232_midi - Use CS4232 MPU-401 interface
1754 (inaccessibly located inside your computer)
1755 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1757 with isapnp=0, the following options are available:
1759 cs4232_pcm_port - Port # for CS4232 PCM interface.
1760 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1761 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1762 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1763 ics2115_port - Port # for ICS2115
1764 ics2115_irq - IRQ # for ICS2115
1765 fm_port - FM OPL-3 Port #
1766 dma1 - DMA1 # for CS4232 PCM interface.
1767 dma2 - DMA2 # for CS4232 PCM interface.
1769 The below are options for wavefront_synth features:
1770 wf_raw - Assume that we need to boot the OS (default:no)
1771 If yes, then during driver loading, the state of the board is
1772 ignored, and we reset the board and load the firmware anyway.
1773 fx_raw - Assume that the FX process needs help (default:yes)
1774 If false, we'll leave the FX processor in whatever state it is
1775 when the driver is loaded. The default is to download the
1776 microprogram and associated coefficients to set it up for
1777 "default" operation, whatever that means.
1778 debug_default - Debug parameters for card initialization
1779 wait_usecs - How long to wait without sleeping, usecs
1780 (default:150)
1781 This magic number seems to give pretty optimal throughput
1782 based on my limited experimentation.
1783 If you want to play around with it and find a better value, be
1784 my guest. Remember, the idea is to get a number that causes us
1785 to just busy wait for as many WaveFront commands as possible,
1786 without coming up with a number so large that we hog the whole
1787 CPU.
1788 Specifically, with this number, out of about 134,000 status
1789 waits, only about 250 result in a sleep.
1790 sleep_interval - How long to sleep when waiting for reply
1791 (default: 100)
1792 sleep_tries - How many times to try sleeping during a wait
1793 (default: 50)
1794 ospath - Pathname to processed ICS2115 OS firmware
1795 (default:wavefront.os)
1796 The path name of the ISC2115 OS firmware. In the recent
1797 version, it's handled via firmware loader framework, so it
1798 must be installed in the proper path, typically,
1799 /lib/firmware.
1800 reset_time - How long to wait for a reset to take effect
1801 (default:2)
1802 ramcheck_time - How many seconds to wait for the RAM test
1803 (default:20)
1804 osrun_time - How many seconds to wait for the ICS2115 OS
1805 (default:10)
1807 This module supports multiple cards and ISA PnP.
1809 Note: the firmware file "wavefront.os" was located in the earlier
1810 version in /etc. Now it's loaded via firmware loader, and
1811 must be in the proper firmware path, such as /lib/firmware.
1812 Copy (or symlink) the file appropriately if you get an error
1813 regarding firmware downloading after upgrading the kernel.
1815 Module snd-sonicvibes
1816 ---------------------
1818 Module for S3 SonicVibes PCI sound cards.
1819 * PINE Schubert 32 PCI
1821 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1822 - SoundCard must have onboard SRAM for this.
1823 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1825 This module supports multiple cards and autoprobe.
1827 Module snd-serial-u16550
1828 ------------------------
1830 Module for UART16550A serial MIDI ports.
1832 port - port # for UART16550A chip
1833 irq - IRQ # for UART16550A chip, -1 = poll mode
1834 speed - speed in bauds (9600,19200,38400,57600,115200)
1835 38400 = default
1836 base - base for divisor in bauds (57600,115200,230400,460800)
1837 115200 = default
1838 outs - number of MIDI ports in a serial port (1-4)
1839 1 = default
1840 adaptor - Type of adaptor.
1841 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1842 3 = MS-124W M/B, 4 = Generic
1844 This module supports multiple cards. This module does not support autoprobe
1845 thus the main port must be specified!!! Other options are optional.
1847 Module snd-trident
1848 ------------------
1850 Module for Trident 4DWave DX/NX sound cards.
1851 * Best Union Miss Melody 4DWave PCI
1852 * HIS 4DWave PCI
1853 * Warpspeed ONSpeed 4DWave PCI
1854 * AzTech PCI 64-Q3D
1855 * Addonics SV 750
1856 * CHIC True Sound 4Dwave
1857 * Shark Predator4D-PCI
1858 * Jaton SonicWave 4D
1859 * SiS SI7018 PCI Audio
1860 * Hoontech SoundTrack Digital 4DWave NX
1862 pcm_channels - max channels (voices) reserved for PCM
1863 wavetable_size - max wavetable size in kB (4-?kb)
1865 This module supports multiple cards and autoprobe.
1867 The power-management is supported.
1869 Module snd-ua101
1870 ----------------
1872 Module for the Edirol UA-101/UA-1000 audio/MIDI interfaces.
1874 This module supports multiple devices, autoprobe and hotplugging.
1876 Module snd-usb-audio
1877 --------------------
1879 Module for USB audio and USB MIDI devices.
1881 vid - Vendor ID for the device (optional)
1882 pid - Product ID for the device (optional)
1883 nrpacks - Max. number of packets per URB (default: 8)
1884 async_unlink - Use async unlink mode (default: yes)
1885 device_setup - Device specific magic number (optional)
1886 - Influence depends on the device
1887 - Default: 0x0000
1888 ignore_ctl_error - Ignore any USB-controller regarding mixer
1889 interface (default: no)
1891 This module supports multiple devices, autoprobe and hotplugging.
1893 NB: nrpacks parameter can be modified dynamically via sysfs.
1894 Don't put the value over 20. Changing via sysfs has no sanity
1895 check.
1896 NB: async_unlink=0 would cause Oops. It remains just for
1897 debugging purpose (if any).
1898 NB: ignore_ctl_error=1 may help when you get an error at accessing
1899 the mixer element such as URB error -22. This happens on some
1900 buggy USB device or the controller.
1902 Module snd-usb-caiaq
1903 --------------------
1905 Module for caiaq UB audio interfaces,
1906 * Native Instruments RigKontrol2
1907 * Native Instruments Kore Controller
1908 * Native Instruments Audio Kontrol 1
1909 * Native Instruments Audio 8 DJ
1911 This module supports multiple devices, autoprobe and hotplugging.
1913 Module snd-usb-usx2y
1914 --------------------
1916 Module for Tascam USB US-122, US-224 and US-428 devices.
1918 This module supports multiple devices, autoprobe and hotplugging.
1920 Note: you need to load the firmware via usx2yloader utility included
1921 in alsa-tools and alsa-firmware packages.
1923 Module snd-via82xx
1924 ------------------
1926 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1927 8233A, 8233C, 8235, 8237 (south) bridge.
1929 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1930 [VIA686A/686B only]
1931 joystick - Enable joystick (default off) [VIA686A/686B only]
1932 ac97_clock - AC'97 codec clock base (default 48000Hz)
1933 dxs_support - support DXS channels,
1934 0 = auto (default), 1 = enable, 2 = disable,
1935 3 = 48k only, 4 = no VRA, 5 = enable any sample
1936 rate and different sample rates on different
1937 channels
1938 [VIA8233/C, 8235, 8237 only]
1939 ac97_quirk - AC'97 workaround for strange hardware
1940 See "AC97 Quirk Option" section below.
1942 This module supports one chip and autoprobe.
1944 Note: on some SMP motherboards like MSI 694D the interrupts might
1945 not be generated properly. In such a case, please try to
1946 set the SMP (or MPS) version on BIOS to 1.1 instead of
1947 default value 1.4. Then the interrupt number will be
1948 assigned under 15. You might also upgrade your BIOS.
1950 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1951 channels as the first PCM. On these channels, up to 4
1952 streams can be played at the same time, and the controller
1953 can perform sample rate conversion with separate rates for
1954 each channel.
1955 As default (dxs_support = 0), 48k fixed rate is chosen
1956 except for the known devices since the output is often
1957 noisy except for 48k on some mother boards due to the
1958 bug of BIOS.
1959 Please try once dxs_support=5 and if it works on other
1960 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1961 know the PCI subsystem vendor/device id's (output of
1962 "lspci -nv").
1963 If dxs_support=5 does not work, try dxs_support=4; if it
1964 doesn't work too, try dxs_support=1. (dxs_support=1 is
1965 usually for old motherboards. The correct implemented
1966 board should work with 4 or 5.) If it still doesn't
1967 work and the default setting is ok, dxs_support=3 is the
1968 right choice. If the default setting doesn't work at all,
1969 try dxs_support=2 to disable the DXS channels.
1970 In any cases, please let us know the result and the
1971 subsystem vendor/device ids. See "Links and Addresses"
1972 below.
1974 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1975 additionally. The mpu_port option is for VIA686 chips only.
1977 The power-management is supported.
1979 Module snd-via82xx-modem
1980 ------------------------
1982 Module for VIA82xx AC97 modem
1984 ac97_clock - AC'97 codec clock base (default 48000Hz)
1986 This module supports one card and autoprobe.
1988 Note: The default index value of this module is -2, i.e. the first
1989 slot is excluded.
1991 The power-management is supported.
1993 Module snd-virmidi
1994 ------------------
1996 Module for virtual rawmidi devices.
1997 This module creates virtual rawmidi devices which communicate
1998 to the corresponding ALSA sequencer ports.
2000 midi_devs - MIDI devices # (1-4, default=4)
2002 This module supports multiple cards.
2004 Module snd-virtuoso
2005 -------------------
2007 Module for sound cards based on the Asus AV66/AV100/AV200 chips,
2008 i.e., Xonar D1, DX, D2, D2X, DS, Essence ST (Deluxe), Essence STX,
2009 HDAV1.3 (Deluxe), and HDAV1.3 Slim.
2011 This module supports autoprobe and multiple cards.
2013 Module snd-vx222
2014 ----------------
2016 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
2018 mic - Enable Microphone on V222 Mic (NYI)
2019 ibl - Capture IBL size. (default = 0, minimum size)
2021 This module supports multiple cards.
2023 When the driver is compiled as a module and the hotplug firmware
2024 is supported, the firmware data is loaded via hotplug automatically.
2025 Install the necessary firmware files in alsa-firmware package.
2026 When no hotplug fw loader is available, you need to load the
2027 firmware via vxloader utility in alsa-tools package. To invoke
2028 vxloader automatically, add the following to /etc/modprobe.conf
2030 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
2032 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
2033 /etc/modules.conf, instead.)
2034 IBL size defines the interrupts period for PCM. The smaller size
2035 gives smaller latency but leads to more CPU consumption, too.
2036 The size is usually aligned to 126. As default (=0), the smallest
2037 size is chosen. The possible IBL values can be found in
2038 /proc/asound/cardX/vx-status proc file.
2040 The power-management is supported.
2042 Module snd-vxpocket
2043 -------------------
2045 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
2047 ibl - Capture IBL size. (default = 0, minimum size)
2049 This module supports multiple cards. The module is compiled only when
2050 PCMCIA is supported on kernel.
2052 With the older 2.6.x kernel, to activate the driver via the card
2053 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
2054 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
2055 longer require a config file.
2057 When the driver is compiled as a module and the hotplug firmware
2058 is supported, the firmware data is loaded via hotplug automatically.
2059 Install the necessary firmware files in alsa-firmware package.
2060 When no hotplug fw loader is available, you need to load the
2061 firmware via vxloader utility in alsa-tools package.
2063 About capture IBL, see the description of snd-vx222 module.
2065 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
2066 ALSA 1.0.10.
2068 The power-management is supported.
2070 Module snd-ymfpci
2071 -----------------
2073 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
2075 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
2076 1 (auto-detect for YMF744/754 only)
2077 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
2078 1 (auto-detect for YMF744/754 only)
2079 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
2080 1 (auto-detect)
2081 rear_switch - enable shared rear/line-in switch (bool)
2083 This module supports autoprobe and multiple chips.
2085 The power-management is supported.
2087 Module snd-pdaudiocf
2088 --------------------
2090 Module for Sound Core PDAudioCF sound card.
2092 The power-management is supported.
2095 AC97 Quirk Option
2096 =================
2098 The ac97_quirk option is used to enable/override the workaround for
2099 specific devices on drivers for on-board AC'97 controllers like
2100 snd-intel8x0. Some hardware have swapped output pins between Master
2101 and Headphone, or Surround (thanks to confusion of AC'97
2102 specifications from version to version :-)
2104 The driver provides the auto-detection of known problematic devices,
2105 but some might be unknown or wrongly detected. In such a case, pass
2106 the proper value with this option.
2108 The following strings are accepted:
2109 - default Don't override the default setting
2110 - none Disable the quirk
2111 - hp_only Bind Master and Headphone controls as a single control
2112 - swap_hp Swap headphone and master controls
2113 - swap_surround Swap master and surround controls
2114 - ad_sharing For AD1985, turn on OMS bit and use headphone
2115 - alc_jack For ALC65x, turn on the jack sense mode
2116 - inv_eapd Inverted EAPD implementation
2117 - mute_led Bind EAPD bit for turning on/off mute LED
2119 For backward compatibility, the corresponding integer value -1, 0,
2120 ... are accepted, too.
2122 For example, if "Master" volume control has no effect on your device
2123 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2126 Configuring Non-ISAPNP Cards
2127 ============================
2129 When the kernel is configured with ISA-PnP support, the modules
2130 supporting the isapnp cards will have module options "isapnp".
2131 If this option is set, *only* the ISA-PnP devices will be probed.
2132 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2133 together with the proper i/o and irq configuration.
2135 When the kernel is configured without ISA-PnP support, isapnp option
2136 will be not built in.
2139 Module Autoloading Support
2140 ==========================
2142 The ALSA drivers can be loaded automatically on demand by defining
2143 module aliases. The string 'snd-card-%1' is requested for ALSA native
2144 devices where %i is sound card number from zero to seven.
2146 To auto-load an ALSA driver for OSS services, define the string
2147 'sound-slot-%i' where %i means the slot number for OSS, which
2148 corresponds to the card index of ALSA. Usually, define this
2149 as the same card module.
2151 An example configuration for a single emu10k1 card is like below:
2152 ----- /etc/modprobe.conf
2153 alias snd-card-0 snd-emu10k1
2154 alias sound-slot-0 snd-emu10k1
2155 ----- /etc/modprobe.conf
2157 The available number of auto-loaded sound cards depends on the module
2158 option "cards_limit" of snd module. As default it's set to 1.
2159 To enable the auto-loading of multiple cards, specify the number of
2160 sound cards in that option.
2162 When multiple cards are available, it'd better to specify the index
2163 number for each card via module option, too, so that the order of
2164 cards is kept consistent.
2166 An example configuration for two sound cards is like below:
2168 ----- /etc/modprobe.conf
2169 # ALSA portion
2170 options snd cards_limit=2
2171 alias snd-card-0 snd-interwave
2172 alias snd-card-1 snd-ens1371
2173 options snd-interwave index=0
2174 options snd-ens1371 index=1
2175 # OSS/Free portion
2176 alias sound-slot-0 snd-interwave
2177 alias sound-slot-1 snd-ens1371
2178 ----- /etc/modprobe.conf
2180 In this example, the interwave card is always loaded as the first card
2181 (index 0) and ens1371 as the second (index 1).
2183 Alternative (and new) way to fixate the slot assignment is to use
2184 "slots" option of snd module. In the case above, specify like the
2185 following:
2187 options snd slots=snd-interwave,snd-ens1371
2189 Then, the first slot (#0) is reserved for snd-interwave driver, and
2190 the second (#1) for snd-ens1371. You can omit index option in each
2191 driver if slots option is used (although you can still have them at
2192 the same time as long as they don't conflict).
2194 The slots option is especially useful for avoiding the possible
2195 hot-plugging and the resultant slot conflict. For example, in the
2196 case above again, the first two slots are already reserved. If any
2197 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2198 snd-ens1371, it will be assigned to the third or later slot.
2200 When a module name is given with '!', the slot will be given for any
2201 modules but that name. For example, "slots=!snd-pcsp" will reserve
2202 the first slot for any modules but snd-pcsp.
2205 ALSA PCM devices to OSS devices mapping
2206 =======================================
2208 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2209 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2210 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2211 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2212 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2213 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2214 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2215 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2216 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2218 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2219 sound card number and second means device number. The ALSA devices
2220 have either 'c' or 'p' suffix indicating the direction, capture and
2221 playback, respectively.
2223 Please note that the device mapping above may be varied via the module
2224 options of snd-pcm-oss module.
2227 Proc interfaces (/proc/asound)
2228 ==============================
2230 /proc/asound/card#/pcm#[cp]/oss
2231 -------------------------------
2232 String "erase" - erase all additional information about OSS applications
2233 String "<app_name> <fragments> <fragment_size> [<options>]"
2235 <app_name> - name of application with (higher priority) or without path
2236 <fragments> - number of fragments or zero if auto
2237 <fragment_size> - size of fragment in bytes or zero if auto
2238 <options> - optional parameters
2239 - disable the application tries to open a pcm device for
2240 this channel but does not want to use it.
2241 (Cause a bug or mmap needs)
2242 It's good for Quake etc...
2243 - direct don't use plugins
2244 - block force block mode (rvplayer)
2245 - non-block force non-block mode
2246 - whole-frag write only whole fragments (optimization affecting
2247 playback only)
2248 - no-silence do not fill silence ahead to avoid clicks
2249 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2250 instead of filled blocks
2252 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2253 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2254 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2257 Early Buffer Allocation
2258 =======================
2260 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2261 sometimes it's too late to find such spaces when the driver module is
2262 actually loaded due to memory fragmentation. You can pre-allocate the
2263 PCM buffers by loading snd-page-alloc module and write commands to its
2264 proc file in prior, for example, in the early boot stage like
2265 /etc/init.d/*.local scripts.
2267 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2268 usage of page allocation. In writing, you can send the following
2269 commands to the snd-page-alloc driver:
2271 - add VENDOR DEVICE MASK SIZE BUFFERS
2273 VENDOR and DEVICE are PCI vendor and device IDs. They take
2274 integer numbers (0x prefix is needed for the hex).
2275 MASK is the PCI DMA mask. Pass 0 if not restricted.
2276 SIZE is the size of each buffer to allocate. You can pass
2277 k and m suffix for KB and MB. The max number is 16MB.
2278 BUFFERS is the number of buffers to allocate. It must be greater
2279 than 0. The max number is 4.
2281 - erase
2283 This will erase the all pre-allocated buffers which are not in
2284 use.
2287 Links and Addresses
2288 ===================
2290 ALSA project homepage
2291 http://www.alsa-project.org
2293 Kernel Bugzilla
2294 http://bugzilla.kernel.org/
2296 ALSA Developers ML
2297 mailto:alsa-devel@alsa-project.org
2299 alsa-info.sh script
2300 http://www.alsa-project.org/alsa-info.sh