| blob | 27126c469f7086bf7fe24897d1402165d8922a49 |
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)
889 align_buffer_size - Force rounding of buffer/period sizes to multiples
890 of 128 bytes. This is more efficient in terms of memory
891 access but isn't required by the HDA spec and prevents
892 users from specifying exact period/buffer sizes.
893 (default = on)
895 This module supports multiple cards and autoprobe.
897 See Documentation/sound/alsa/HD-Audio.txt for more details about
898 HD-audio driver.
900 Each codec may have a model table for different configurations.
901 If your machine isn't listed there, the default (usually minimal)
902 configuration is set up. You can pass "model=<name>" option to
903 specify a certain model in such a case. There are different
904 models depending on the codec chip. The list of available models
905 is found in HD-Audio-Models.txt
907 The model name "genric" is treated as a special case. When this
908 model is given, the driver uses the generic codec parser without
909 "codec-patch". It's sometimes good for testing and debugging.
911 If the default configuration doesn't work and one of the above
912 matches with your device, report it together with alsa-info.sh
913 output (with --no-upload option) to kernel bugzilla or alsa-devel
914 ML (see the section "Links and Addresses").
916 power_save and power_save_controller options are for power-saving
917 mode. See powersave.txt for details.
919 Note 2: If you get click noises on output, try the module option
920 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
921 register value without FIFO size correction as the current
922 DMA pointer. position_fix=2 will make the driver to use
923 the position buffer instead of reading SD_LPIB register.
924 (Usually SD_LPIB register is more accurate than the
925 position buffer.)
927 NB: If you get many "azx_get_response timeout" messages at
928 loading, it's likely a problem of interrupts (e.g. ACPI irq
929 routing). Try to boot with options like "pci=noacpi". Also, you
930 can try "single_cmd=1" module option. This will switch the
931 communication method between HDA controller and codecs to the
932 single immediate commands instead of CORB/RIRB. Basically, the
933 single command mode is provided only for BIOS, and you won't get
934 unsolicited events, too. But, at least, this works independently
935 from the irq. Remember this is a last resort, and should be
936 avoided as much as possible...
938 MORE NOTES ON "azx_get_response timeout" PROBLEMS:
939 On some hardwares, you may need to add a proper probe_mask option
940 to avoid the "azx_get_response timeout" problem above, instead.
941 This occurs when the access to non-existing or non-working codec slot
942 (likely a modem one) causes a stall of the communication via HD-audio
943 bus. You can see which codec slots are probed by enabling
944 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
945 proc files. Then limit the slots to probe by probe_mask option.
946 For example, probe_mask=1 means to probe only the first slot, and
947 probe_mask=4 means only the third slot.
949 The power-management is supported.
951 Module snd-hdsp
952 ---------------
954 Module for RME Hammerfall DSP audio interface(s)
956 This module supports multiple cards.
958 Note: The firmware data can be automatically loaded via hotplug
959 when CONFIG_FW_LOADER is set. Otherwise, you need to load
960 the firmware via hdsploader utility included in alsa-tools
961 package.
962 The firmware data is found in alsa-firmware package.
964 Note: snd-page-alloc module does the job which snd-hammerfall-mem
965 module did formerly. It will allocate the buffers in advance
966 when any HDSP cards are found. To make the buffer
967 allocation sure, load snd-page-alloc module in the early
968 stage of boot sequence. See "Early Buffer Allocation"
969 section.
971 Module snd-hdspm
972 ----------------
974 Module for RME HDSP MADI board.
976 precise_ptr - Enable precise pointer, or disable.
977 line_outs_monitor - Send playback streams to analog outs by default.
978 enable_monitor - Enable Analog Out on Channel 63/64 by default.
980 See hdspm.txt for details.
982 Module snd-ice1712
983 ------------------
985 Module for Envy24 (ICE1712) based PCI sound cards.
986 * MidiMan M Audio Delta 1010
987 * MidiMan M Audio Delta 1010LT
988 * MidiMan M Audio Delta DiO 2496
989 * MidiMan M Audio Delta 66
990 * MidiMan M Audio Delta 44
991 * MidiMan M Audio Delta 410
992 * MidiMan M Audio Audiophile 2496
993 * TerraTec EWS 88MT
994 * TerraTec EWS 88D
995 * TerraTec EWX 24/96
996 * TerraTec DMX 6Fire
997 * TerraTec Phase 88
998 * Hoontech SoundTrack DSP 24
999 * Hoontech SoundTrack DSP 24 Value
1000 * Hoontech SoundTrack DSP 24 Media 7.1
1001 * Event Electronics, EZ8
1002 * Digigram VX442
1003 * Lionstracs, Mediastaton
1004 * Terrasoniq TS 88
1006 model - Use the given board model, one of the following:
1007 delta1010, dio2496, delta66, delta44, audiophile, delta410,
1008 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1009 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1010 phase88, mediastation
1011 omni - Omni I/O support for MidiMan M-Audio Delta44/66
1012 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1013 in msec resolution, default value is 500 (0.5 sec)
1015 This module supports multiple cards and autoprobe. Note: The consumer part
1016 is not used with all Envy24 based cards (for example in the MidiMan Delta
1017 serie).
1019 Note: The supported board is detected by reading EEPROM or PCI
1020 SSID (if EEPROM isn't available). You can override the
1021 model by passing "model" module option in case that the
1022 driver isn't configured properly or you want to try another
1023 type for testing.
1025 Module snd-ice1724
1026 ------------------
1028 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1029 * MidiMan M Audio Revolution 5.1
1030 * MidiMan M Audio Revolution 7.1
1031 * MidiMan M Audio Audiophile 192
1032 * AMP Ltd AUDIO2000
1033 * TerraTec Aureon 5.1 Sky
1034 * TerraTec Aureon 7.1 Space
1035 * TerraTec Aureon 7.1 Universe
1036 * TerraTec Phase 22
1037 * TerraTec Phase 28
1038 * AudioTrak Prodigy 7.1
1039 * AudioTrak Prodigy 7.1 LT
1040 * AudioTrak Prodigy 7.1 XT
1041 * AudioTrak Prodigy 7.1 HIFI
1042 * AudioTrak Prodigy 7.1 HD2
1043 * AudioTrak Prodigy 192
1044 * Pontis MS300
1045 * Albatron K8X800 Pro II
1046 * Chaintech ZNF3-150
1047 * Chaintech ZNF3-250
1048 * Chaintech 9CJS
1049 * Chaintech AV-710
1050 * Shuttle SN25P
1051 * Onkyo SE-90PCI
1052 * Onkyo SE-200PCI
1053 * ESI Juli@
1054 * ESI Maya44
1055 * Hercules Fortissimo IV
1056 * EGO-SYS WaveTerminal 192M
1058 model - Use the given board model, one of the following:
1059 revo51, revo71, amp2000, prodigy71, prodigy71lt,
1060 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
1061 juli, aureon51, aureon71, universe, ap192, k8x800,
1062 phase22, phase28, ms300, av710, se200pci, se90pci,
1063 fortissimo4, sn25p, WT192M, maya44
1065 This module supports multiple cards and autoprobe.
1067 Note: The supported board is detected by reading EEPROM or PCI
1068 SSID (if EEPROM isn't available). You can override the
1069 model by passing "model" module option in case that the
1070 driver isn't configured properly or you want to try another
1071 type for testing.
1073 Module snd-indigo
1074 -----------------
1076 Module for Echoaudio Indigo
1078 This module supports multiple cards.
1079 The driver requires the firmware loader support on kernel.
1081 Module snd-indigodj
1082 -------------------
1084 Module for Echoaudio Indigo DJ
1086 This module supports multiple cards.
1087 The driver requires the firmware loader support on kernel.
1089 Module snd-indigoio
1090 -------------------
1092 Module for Echoaudio Indigo IO
1094 This module supports multiple cards.
1095 The driver requires the firmware loader support on kernel.
1097 Module snd-intel8x0
1098 -------------------
1100 Module for AC'97 motherboards from Intel and compatibles.
1101 * Intel i810/810E, i815, i820, i830, i84x, MX440
1102 ICH5, ICH6, ICH7, 6300ESB, ESB2
1103 * SiS 7012 (SiS 735)
1104 * NVidia NForce, NForce2, NForce3, MCP04, CK804
1105 CK8, CK8S, MCP501
1106 * AMD AMD768, AMD8111
1107 * ALi m5455
1109 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1110 ac97_quirk - AC'97 workaround for strange hardware
1111 See "AC97 Quirk Option" section below.
1112 buggy_irq - Enable workaround for buggy interrupts on some
1113 motherboards (default yes on nForce chips,
1114 otherwise off)
1115 buggy_semaphore - Enable workaround for hardwares with buggy
1116 semaphores (e.g. on some ASUS laptops)
1117 (default off)
1118 spdif_aclink - Use S/PDIF over AC-link instead of direct connection
1119 from the controller chip
1120 (0 = off, 1 = on, -1 = default)
1122 This module supports one chip and autoprobe.
1124 Note: the latest driver supports auto-detection of chip clock.
1125 if you still encounter too fast playback, specify the clock
1126 explicitly via the module option "ac97_clock=41194".
1128 Joystick/MIDI ports are not supported by this driver. If your
1129 motherboard has these devices, use the ns558 or snd-mpu401
1130 modules, respectively.
1132 The power-management is supported.
1134 Module snd-intel8x0m
1135 --------------------
1137 Module for Intel ICH (i8x0) chipset MC97 modems.
1138 * Intel i810/810E, i815, i820, i830, i84x, MX440
1139 ICH5, ICH6, ICH7
1140 * SiS 7013 (SiS 735)
1141 * NVidia NForce, NForce2, NForce2s, NForce3
1142 * AMD AMD8111
1143 * ALi m5455
1145 ac97_clock - AC'97 codec clock base (0 = auto-detect)
1147 This module supports one card and autoprobe.
1149 Note: The default index value of this module is -2, i.e. the first
1150 slot is excluded.
1152 The power-management is supported.
1154 Module snd-interwave
1155 --------------------
1157 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1158 and other sound cards based on AMD InterWave (tm) chip.
1160 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1161 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1162 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1163 effect - 1 = InterWave effects enable (default 0);
1164 requires 8 voices
1165 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1167 with isapnp=0, the following options are available:
1169 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1170 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1171 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1172 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1174 This module supports multiple cards, autoprobe and ISA PnP.
1176 Module snd-interwave-stb
1177 ------------------------
1179 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1180 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1181 circuit for extended control of bass, treble and master volume.
1183 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1184 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1185 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1186 effect - 1 = InterWave effects enable (default 0);
1187 requires 8 voices
1188 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1190 with isapnp=0, the following options are available:
1192 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1193 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1194 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1195 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1196 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1198 This module supports multiple cards, autoprobe and ISA PnP.
1200 Module snd-jazz16
1201 -------------------
1203 Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
1204 MVD1216 + MVA416 + MVA514.
1206 port - port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
1207 irq - IRQ # for SB DSP chip (3,5,7,9,10,15)
1208 dma8 - DMA # for SB DSP chip (1,3)
1209 dma16 - DMA # for SB DSP chip (5,7)
1210 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1211 mpu_irq - MPU-401 irq # (2,3,5,7)
1213 This module supports multiple cards.
1215 Module snd-korg1212
1216 -------------------
1218 Module for Korg 1212 IO PCI card
1220 This module supports multiple cards.
1222 Module snd-layla20
1223 ------------------
1225 Module for Echoaudio Layla20
1227 This module supports multiple cards.
1228 The driver requires the firmware loader support on kernel.
1230 Module snd-layla24
1231 ------------------
1233 Module for Echoaudio Layla24
1235 This module supports multiple cards.
1236 The driver requires the firmware loader support on kernel.
1238 Module snd-lola
1239 ---------------
1241 Module for Digigram Lola PCI-e boards
1243 This module supports multiple cards.
1245 Module snd-lx6464es
1246 -------------------
1248 Module for Digigram LX6464ES boards
1250 This module supports multiple cards.
1252 Module snd-maestro3
1253 -------------------
1255 Module for Allegro/Maestro3 chips
1257 external_amp - enable external amp (enabled by default)
1258 amp_gpio - GPIO pin number for external amp (0-15) or
1259 -1 for default pin (8 for allegro, 1 for
1260 others)
1262 This module supports autoprobe and multiple chips.
1264 Note: the binding of amplifier is dependent on hardware.
1265 If there is no sound even though all channels are unmuted, try to
1266 specify other gpio connection via amp_gpio option.
1267 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1268 option.
1270 The power-management is supported.
1272 Module snd-mia
1273 ---------------
1275 Module for Echoaudio Mia
1277 This module supports multiple cards.
1278 The driver requires the firmware loader support on kernel.
1280 Module snd-miro
1281 ---------------
1283 Module for Miro soundcards: miroSOUND PCM 1 pro,
1284 miroSOUND PCM 12,
1285 miroSOUND PCM 20 Radio.
1287 port - Port # (0x530,0x604,0xe80,0xf40)
1288 irq - IRQ # (5,7,9,10,11)
1289 dma1 - 1st dma # (0,1,3)
1290 dma2 - 2nd dma # (0,1)
1291 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1292 mpu_irq - MPU-401 irq # (5,7,9,10)
1293 fm_port - FM Port # (0x388)
1294 wss - enable WSS mode
1295 ide - enable onboard ide support
1297 Module snd-mixart
1298 -----------------
1300 Module for Digigram miXart8 sound cards.
1302 This module supports multiple cards.
1303 Note: One miXart8 board will be represented as 4 alsa cards.
1304 See MIXART.txt for details.
1306 When the driver is compiled as a module and the hotplug firmware
1307 is supported, the firmware data is loaded via hotplug automatically.
1308 Install the necessary firmware files in alsa-firmware package.
1309 When no hotplug fw loader is available, you need to load the
1310 firmware via mixartloader utility in alsa-tools package.
1312 Module snd-mona
1313 ---------------
1315 Module for Echoaudio Mona
1317 This module supports multiple cards.
1318 The driver requires the firmware loader support on kernel.
1320 Module snd-mpu401
1321 -----------------
1323 Module for MPU-401 UART devices.
1325 port - port number or -1 (disable)
1326 irq - IRQ number or -1 (disable)
1327 pnp - PnP detection - 0 = disable, 1 = enable (default)
1329 This module supports multiple devices and PnP.
1331 Module snd-msnd-classic
1332 -----------------------
1334 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
1335 soundcards.
1337 io - Port # for msnd-classic card
1338 irq - IRQ # for msnd-classic card
1339 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1340 0xe0000 or 0xe8000)
1341 write_ndelay - enable write ndelay (default = 1)
1342 calibrate_signal - calibrate signal (default = 0)
1343 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1344 digital - Digital daughterboard present (default = 0)
1345 cfg - Config port (0x250, 0x260 or 0x270) default = PnP
1346 reset - Reset all devices
1347 mpu_io - MPU401 I/O port
1348 mpu_irq - MPU401 irq#
1349 ide_io0 - IDE port #0
1350 ide_io1 - IDE port #1
1351 ide_irq - IDE irq#
1352 joystick_io - Joystick I/O port
1354 The driver requires firmware files "turtlebeach/msndinit.bin" and
1355 "turtlebeach/msndperm.bin" in the proper firmware directory.
1357 See Documentation/sound/oss/MultiSound for important information
1358 about this driver. Note that it has been discontinued, but the
1359 Voyetra Turtle Beach knowledge base entry for it is still available
1360 at
1361 http://www.turtlebeach.com
1363 Module snd-msnd-pinnacle
1364 ------------------------
1366 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
1368 io - Port # for pinnacle/fiji card
1369 irq - IRQ # for pinnalce/fiji card
1370 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
1371 0xe0000 or 0xe8000)
1372 write_ndelay - enable write ndelay (default = 1)
1373 calibrate_signal - calibrate signal (default = 0)
1374 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1376 The driver requires firmware files "turtlebeach/pndspini.bin" and
1377 "turtlebeach/pndsperm.bin" in the proper firmware directory.
1379 Module snd-mtpav
1380 ----------------
1382 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1383 port).
1385 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1386 irq - IRQ # for MTPAV (7,5, default=7)
1387 hwports - number of supported hardware ports, default=8.
1389 Module supports only 1 card. This module has no enable option.
1391 Module snd-mts64
1392 ----------------
1394 Module for Ego Systems (ESI) Miditerminal 4140
1396 This module supports multiple devices.
1397 Requires parport (CONFIG_PARPORT).
1399 Module snd-nm256
1400 ----------------
1402 Module for NeoMagic NM256AV/ZX chips
1404 playback_bufsize - max playback frame size in kB (4-128kB)
1405 capture_bufsize - max capture frame size in kB (4-128kB)
1406 force_ac97 - 0 or 1 (disabled by default)
1407 buffer_top - specify buffer top address
1408 use_cache - 0 or 1 (disabled by default)
1409 vaio_hack - alias buffer_top=0x25a800
1410 reset_workaround - enable AC97 RESET workaround for some laptops
1411 reset_workaround2 - enable extended AC97 RESET workaround for some
1412 other laptops
1414 This module supports one chip and autoprobe.
1416 The power-management is supported.
1418 Note: on some notebooks the buffer address cannot be detected
1419 automatically, or causes hang-up during initialization.
1420 In such a case, specify the buffer top address explicitly via
1421 the buffer_top option.
1422 For example,
1423 Sony F250: buffer_top=0x25a800
1424 Sony F270: buffer_top=0x272800
1425 The driver supports only ac97 codec. It's possible to force
1426 to initialize/use ac97 although it's not detected. In such a
1427 case, use force_ac97=1 option - but *NO* guarantee whether it
1428 works!
1430 Note: The NM256 chip can be linked internally with non-AC97
1431 codecs. This driver supports only the AC97 codec, and won't work
1432 with machines with other (most likely CS423x or OPL3SAx) chips,
1433 even though the device is detected in lspci. In such a case, try
1434 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1435 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1436 and proper hardware parameters in the case without ISA PnP.
1438 Note: some laptops need a workaround for AC97 RESET. For the
1439 known hardware like Dell Latitude LS and Sony PCG-F305, this
1440 workaround is enabled automatically. For other laptops with a
1441 hard freeze, you can try reset_workaround=1 option.
1443 Note: Dell Latitude CSx laptops have another problem regarding
1444 AC97 RESET. On these laptops, reset_workaround2 option is
1445 turned on as default. This option is worth to try if the
1446 previous reset_workaround option doesn't help.
1448 Note: This driver is really crappy. It's a porting from the
1449 OSS driver, which is a result of black-magic reverse engineering.
1450 The detection of codec will fail if the driver is loaded *after*
1451 X-server as described above. You might be able to force to load
1452 the module, but it may result in hang-up. Hence, make sure that
1453 you load this module *before* X if you encounter this kind of
1454 problem.
1456 Module snd-opl3sa2
1457 ------------------
1459 Module for Yamaha OPL3-SA2/SA3 sound cards.
1461 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1463 with isapnp=0, the following options are available:
1465 port - control port # for OPL3-SA chip (0x370)
1466 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1467 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1468 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1469 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1470 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1471 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1472 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1474 This module supports multiple cards and ISA PnP. It does not support
1475 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1477 The power-management is supported.
1479 Module snd-opti92x-ad1848
1480 -------------------------
1482 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1483 Module works with OAK Mozart cards as well.
1485 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1487 with isapnp=0, the following options are available:
1489 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1490 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1491 fm_port - port # for OPL3 device (0x388)
1492 irq - IRQ # for WSS chip (5,7,9,10,11)
1493 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1494 dma1 - first DMA # for WSS chip (0,1,3)
1496 This module supports only one card, autoprobe and PnP.
1498 Module snd-opti92x-cs4231
1499 -------------------------
1501 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1503 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1505 with isapnp=0, the following options are available:
1507 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1508 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1509 fm_port - port # for OPL3 device (0x388)
1510 irq - IRQ # for WSS chip (5,7,9,10,11)
1511 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1512 dma1 - first DMA # for WSS chip (0,1,3)
1513 dma2 - second DMA # for WSS chip (0,1,3)
1515 This module supports only one card, autoprobe and PnP.
1517 Module snd-opti93x
1518 ------------------
1520 Module for sound cards based on OPTi 82c93x chips.
1522 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1524 with isapnp=0, the following options are available:
1526 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1527 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1528 fm_port - port # for OPL3 device (0x388)
1529 irq - IRQ # for WSS chip (5,7,9,10,11)
1530 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1531 dma1 - first DMA # for WSS chip (0,1,3)
1532 dma2 - second DMA # for WSS chip (0,1,3)
1534 This module supports only one card, autoprobe and PnP.
1536 Module snd-oxygen
1537 -----------------
1539 Module for sound cards based on the C-Media CMI8786/8787/8788 chip:
1540 * Asound A-8788
1541 * Asus Xonar DG
1542 * AuzenTech X-Meridian
1543 * AuzenTech X-Meridian 2G
1544 * Bgears b-Enspirer
1545 * Club3D Theatron DTS
1546 * HT-Omega Claro (plus)
1547 * HT-Omega Claro halo (XT)
1548 * Kuroutoshikou CMI8787-HG2PCI
1549 * Razer Barracuda AC-1
1550 * Sondigo Inferno
1551 * TempoTec HiFier Fantasia
1552 * TempoTec HiFier Serenade
1554 This module supports autoprobe and multiple cards.
1556 Module snd-pcsp
1557 -----------------
1559 Module for internal PC-Speaker.
1561 nopcm - Disable PC-Speaker PCM sound. Only beeps remain.
1562 nforce_wa - enable NForce chipset workaround. Expect bad sound.
1564 This module supports system beeps, some kind of PCM playback and
1565 even a few mixer controls.
1567 Module snd-pcxhr
1568 ----------------
1570 Module for Digigram PCXHR boards
1572 This module supports multiple cards.
1574 Module snd-portman2x4
1575 ---------------------
1577 Module for Midiman Portman 2x4 parallel port MIDI interface
1579 This module supports multiple cards.
1581 Module snd-powermac (on ppc only)
1582 ---------------------------------
1584 Module for PowerMac, iMac and iBook on-board soundchips
1586 enable_beep - enable beep using PCM (enabled as default)
1588 Module supports autoprobe a chip.
1590 Note: the driver may have problems regarding endianess.
1592 The power-management is supported.
1594 Module snd-pxa2xx-ac97 (on arm only)
1595 ------------------------------------
1597 Module for AC97 driver for the Intel PXA2xx chip
1599 For ARM architecture only.
1601 The power-management is supported.
1603 Module snd-riptide
1604 ------------------
1606 Module for Conexant Riptide chip
1608 joystick_port - Joystick port # (default: 0x200)
1609 mpu_port - MPU401 port # (default: 0x330)
1610 opl3_port - OPL3 port # (default: 0x388)
1612 This module supports multiple cards.
1613 The driver requires the firmware loader support on kernel.
1614 You need to install the firmware file "riptide.hex" to the standard
1615 firmware path (e.g. /lib/firmware).
1617 Module snd-rme32
1618 ----------------
1620 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1621 Prodif96 and Prodif Gold) sound cards.
1623 This module supports multiple cards.
1625 Module snd-rme96
1626 ----------------
1628 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1630 This module supports multiple cards.
1632 Module snd-rme9652
1633 ------------------
1635 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1637 precise_ptr - Enable precise pointer (doesn't work reliably).
1638 (default = 0)
1640 This module supports multiple cards.
1642 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1643 module did formerly. It will allocate the buffers in advance
1644 when any RME9652 cards are found. To make the buffer
1645 allocation sure, load snd-page-alloc module in the early
1646 stage of boot sequence. See "Early Buffer Allocation"
1647 section.
1649 Module snd-sa11xx-uda1341 (on arm only)
1650 ---------------------------------------
1652 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1654 Module supports only one card.
1655 Module has no enable and index options.
1657 The power-management is supported.
1659 Module snd-sb8
1660 --------------
1662 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1663 SoundBlaster 2.0,
1664 SoundBlaster Pro
1666 port - port # for SB DSP chip (0x220,0x240,0x260)
1667 irq - IRQ # for SB DSP chip (5,7,9,10)
1668 dma8 - DMA # for SB DSP chip (1,3)
1670 This module supports multiple cards and autoprobe.
1672 The power-management is supported.
1674 Module snd-sb16 and snd-sbawe
1675 -----------------------------
1677 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1678 SoundBlaster AWE 32 (PnP),
1679 SoundBlaster AWE 64 PnP
1681 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1682 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1683 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1685 with isapnp=0, the following options are available:
1687 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1688 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1689 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1690 (snd-sbawe module only)
1691 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1692 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1693 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1695 This module supports multiple cards, autoprobe and ISA PnP.
1697 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1698 disable 16bit DMA with dma16 = -1 module parameter.
1699 Also, all Sound Blaster 16 type cards can operate in 16-bit
1700 half duplex mode through 8-bit DMA channel by disabling their
1701 16-bit DMA channel.
1703 The power-management is supported.
1705 Module snd-sc6000
1706 -----------------
1708 Module for Gallant SC-6000 soundcard and later models: SC-6600
1709 and SC-7000.
1711 port - Port # (0x220 or 0x240)
1712 mss_port - MSS Port # (0x530 or 0xe80)
1713 irq - IRQ # (5,7,9,10,11)
1714 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1715 dma - DMA # (1,3,0)
1716 joystick - Enable gameport - 0 = disable (default), 1 = enable
1718 This module supports multiple cards.
1720 This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1722 Module snd-sscape
1723 -----------------
1725 Module for ENSONIQ SoundScape cards.
1727 port - Port # (PnP setup)
1728 wss_port - WSS Port # (PnP setup)
1729 irq - IRQ # (PnP setup)
1730 mpu_irq - MPU-401 IRQ # (PnP setup)
1731 dma - DMA # (PnP setup)
1732 dma2 - 2nd DMA # (PnP setup, -1 to disable)
1733 joystick - Enable gameport - 0 = disable (default), 1 = enable
1735 This module supports multiple cards.
1737 The driver requires the firmware loader support on kernel.
1739 Module snd-sun-amd7930 (on sparc only)
1740 --------------------------------------
1742 Module for AMD7930 sound chips found on Sparcs.
1744 This module supports multiple cards.
1746 Module snd-sun-cs4231 (on sparc only)
1747 -------------------------------------
1749 Module for CS4231 sound chips found on Sparcs.
1751 This module supports multiple cards.
1753 Module snd-sun-dbri (on sparc only)
1754 -----------------------------------
1756 Module for DBRI sound chips found on Sparcs.
1758 This module supports multiple cards.
1760 Module snd-wavefront
1761 --------------------
1763 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1765 use_cs4232_midi - Use CS4232 MPU-401 interface
1766 (inaccessibly located inside your computer)
1767 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1769 with isapnp=0, the following options are available:
1771 cs4232_pcm_port - Port # for CS4232 PCM interface.
1772 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1773 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1774 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1775 ics2115_port - Port # for ICS2115
1776 ics2115_irq - IRQ # for ICS2115
1777 fm_port - FM OPL-3 Port #
1778 dma1 - DMA1 # for CS4232 PCM interface.
1779 dma2 - DMA2 # for CS4232 PCM interface.
1781 The below are options for wavefront_synth features:
1782 wf_raw - Assume that we need to boot the OS (default:no)
1783 If yes, then during driver loading, the state of the board is
1784 ignored, and we reset the board and load the firmware anyway.
1785 fx_raw - Assume that the FX process needs help (default:yes)
1786 If false, we'll leave the FX processor in whatever state it is
1787 when the driver is loaded. The default is to download the
1788 microprogram and associated coefficients to set it up for
1789 "default" operation, whatever that means.
1790 debug_default - Debug parameters for card initialization
1791 wait_usecs - How long to wait without sleeping, usecs
1792 (default:150)
1793 This magic number seems to give pretty optimal throughput
1794 based on my limited experimentation.
1795 If you want to play around with it and find a better value, be
1796 my guest. Remember, the idea is to get a number that causes us
1797 to just busy wait for as many WaveFront commands as possible,
1798 without coming up with a number so large that we hog the whole
1799 CPU.
1800 Specifically, with this number, out of about 134,000 status
1801 waits, only about 250 result in a sleep.
1802 sleep_interval - How long to sleep when waiting for reply
1803 (default: 100)
1804 sleep_tries - How many times to try sleeping during a wait
1805 (default: 50)
1806 ospath - Pathname to processed ICS2115 OS firmware
1807 (default:wavefront.os)
1808 The path name of the ISC2115 OS firmware. In the recent
1809 version, it's handled via firmware loader framework, so it
1810 must be installed in the proper path, typically,
1811 /lib/firmware.
1812 reset_time - How long to wait for a reset to take effect
1813 (default:2)
1814 ramcheck_time - How many seconds to wait for the RAM test
1815 (default:20)
1816 osrun_time - How many seconds to wait for the ICS2115 OS
1817 (default:10)
1819 This module supports multiple cards and ISA PnP.
1821 Note: the firmware file "wavefront.os" was located in the earlier
1822 version in /etc. Now it's loaded via firmware loader, and
1823 must be in the proper firmware path, such as /lib/firmware.
1824 Copy (or symlink) the file appropriately if you get an error
1825 regarding firmware downloading after upgrading the kernel.
1827 Module snd-sonicvibes
1828 ---------------------
1830 Module for S3 SonicVibes PCI sound cards.
1831 * PINE Schubert 32 PCI
1833 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1834 - SoundCard must have onboard SRAM for this.
1835 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1837 This module supports multiple cards and autoprobe.
1839 Module snd-serial-u16550
1840 ------------------------
1842 Module for UART16550A serial MIDI ports.
1844 port - port # for UART16550A chip
1845 irq - IRQ # for UART16550A chip, -1 = poll mode
1846 speed - speed in bauds (9600,19200,38400,57600,115200)
1847 38400 = default
1848 base - base for divisor in bauds (57600,115200,230400,460800)
1849 115200 = default
1850 outs - number of MIDI ports in a serial port (1-4)
1851 1 = default
1852 adaptor - Type of adaptor.
1853 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1854 3 = MS-124W M/B, 4 = Generic
1856 This module supports multiple cards. This module does not support autoprobe
1857 thus the main port must be specified!!! Other options are optional.
1859 Module snd-trident
1860 ------------------
1862 Module for Trident 4DWave DX/NX sound cards.
1863 * Best Union Miss Melody 4DWave PCI
1864 * HIS 4DWave PCI
1865 * Warpspeed ONSpeed 4DWave PCI
1866 * AzTech PCI 64-Q3D
1867 * Addonics SV 750
1868 * CHIC True Sound 4Dwave
1869 * Shark Predator4D-PCI
1870 * Jaton SonicWave 4D
1871 * SiS SI7018 PCI Audio
1872 * Hoontech SoundTrack Digital 4DWave NX
1874 pcm_channels - max channels (voices) reserved for PCM
1875 wavetable_size - max wavetable size in kB (4-?kb)
1877 This module supports multiple cards and autoprobe.
1879 The power-management is supported.
1881 Module snd-ua101
1882 ----------------
1884 Module for the Edirol UA-101/UA-1000 audio/MIDI interfaces.
1886 This module supports multiple devices, autoprobe and hotplugging.
1888 Module snd-usb-audio
1889 --------------------
1891 Module for USB audio and USB MIDI devices.
1893 vid - Vendor ID for the device (optional)
1894 pid - Product ID for the device (optional)
1895 nrpacks - Max. number of packets per URB (default: 8)
1896 async_unlink - Use async unlink mode (default: yes)
1897 device_setup - Device specific magic number (optional)
1898 - Influence depends on the device
1899 - Default: 0x0000
1900 ignore_ctl_error - Ignore any USB-controller regarding mixer
1901 interface (default: no)
1903 This module supports multiple devices, autoprobe and hotplugging.
1905 NB: nrpacks parameter can be modified dynamically via sysfs.
1906 Don't put the value over 20. Changing via sysfs has no sanity
1907 check.
1908 NB: async_unlink=0 would cause Oops. It remains just for
1909 debugging purpose (if any).
1910 NB: ignore_ctl_error=1 may help when you get an error at accessing
1911 the mixer element such as URB error -22. This happens on some
1912 buggy USB device or the controller.
1914 Module snd-usb-caiaq
1915 --------------------
1917 Module for caiaq UB audio interfaces,
1918 * Native Instruments RigKontrol2
1919 * Native Instruments Kore Controller
1920 * Native Instruments Audio Kontrol 1
1921 * Native Instruments Audio 8 DJ
1923 This module supports multiple devices, autoprobe and hotplugging.
1925 Module snd-usb-usx2y
1926 --------------------
1928 Module for Tascam USB US-122, US-224 and US-428 devices.
1930 This module supports multiple devices, autoprobe and hotplugging.
1932 Note: you need to load the firmware via usx2yloader utility included
1933 in alsa-tools and alsa-firmware packages.
1935 Module snd-via82xx
1936 ------------------
1938 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1939 8233A, 8233C, 8235, 8237 (south) bridge.
1941 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1942 [VIA686A/686B only]
1943 joystick - Enable joystick (default off) [VIA686A/686B only]
1944 ac97_clock - AC'97 codec clock base (default 48000Hz)
1945 dxs_support - support DXS channels,
1946 0 = auto (default), 1 = enable, 2 = disable,
1947 3 = 48k only, 4 = no VRA, 5 = enable any sample
1948 rate and different sample rates on different
1949 channels
1950 [VIA8233/C, 8235, 8237 only]
1951 ac97_quirk - AC'97 workaround for strange hardware
1952 See "AC97 Quirk Option" section below.
1954 This module supports one chip and autoprobe.
1956 Note: on some SMP motherboards like MSI 694D the interrupts might
1957 not be generated properly. In such a case, please try to
1958 set the SMP (or MPS) version on BIOS to 1.1 instead of
1959 default value 1.4. Then the interrupt number will be
1960 assigned under 15. You might also upgrade your BIOS.
1962 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1963 channels as the first PCM. On these channels, up to 4
1964 streams can be played at the same time, and the controller
1965 can perform sample rate conversion with separate rates for
1966 each channel.
1967 As default (dxs_support = 0), 48k fixed rate is chosen
1968 except for the known devices since the output is often
1969 noisy except for 48k on some mother boards due to the
1970 bug of BIOS.
1971 Please try once dxs_support=5 and if it works on other
1972 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1973 know the PCI subsystem vendor/device id's (output of
1974 "lspci -nv").
1975 If dxs_support=5 does not work, try dxs_support=4; if it
1976 doesn't work too, try dxs_support=1. (dxs_support=1 is
1977 usually for old motherboards. The correct implemented
1978 board should work with 4 or 5.) If it still doesn't
1979 work and the default setting is ok, dxs_support=3 is the
1980 right choice. If the default setting doesn't work at all,
1981 try dxs_support=2 to disable the DXS channels.
1982 In any cases, please let us know the result and the
1983 subsystem vendor/device ids. See "Links and Addresses"
1984 below.
1986 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1987 additionally. The mpu_port option is for VIA686 chips only.
1989 The power-management is supported.
1991 Module snd-via82xx-modem
1992 ------------------------
1994 Module for VIA82xx AC97 modem
1996 ac97_clock - AC'97 codec clock base (default 48000Hz)
1998 This module supports one card and autoprobe.
2000 Note: The default index value of this module is -2, i.e. the first
2001 slot is excluded.
2003 The power-management is supported.
2005 Module snd-virmidi
2006 ------------------
2008 Module for virtual rawmidi devices.
2009 This module creates virtual rawmidi devices which communicate
2010 to the corresponding ALSA sequencer ports.
2012 midi_devs - MIDI devices # (1-4, default=4)
2014 This module supports multiple cards.
2016 Module snd-virtuoso
2017 -------------------
2019 Module for sound cards based on the Asus AV66/AV100/AV200 chips,
2020 i.e., Xonar D1, DX, D2, D2X, DS, Essence ST (Deluxe), Essence STX,
2021 HDAV1.3 (Deluxe), and HDAV1.3 Slim.
2023 This module supports autoprobe and multiple cards.
2025 Module snd-vx222
2026 ----------------
2028 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
2030 mic - Enable Microphone on V222 Mic (NYI)
2031 ibl - Capture IBL size. (default = 0, minimum size)
2033 This module supports multiple cards.
2035 When the driver is compiled as a module and the hotplug firmware
2036 is supported, the firmware data is loaded via hotplug automatically.
2037 Install the necessary firmware files in alsa-firmware package.
2038 When no hotplug fw loader is available, you need to load the
2039 firmware via vxloader utility in alsa-tools package. To invoke
2040 vxloader automatically, add the following to /etc/modprobe.conf
2042 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
2044 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
2045 /etc/modules.conf, instead.)
2046 IBL size defines the interrupts period for PCM. The smaller size
2047 gives smaller latency but leads to more CPU consumption, too.
2048 The size is usually aligned to 126. As default (=0), the smallest
2049 size is chosen. The possible IBL values can be found in
2050 /proc/asound/cardX/vx-status proc file.
2052 The power-management is supported.
2054 Module snd-vxpocket
2055 -------------------
2057 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
2059 ibl - Capture IBL size. (default = 0, minimum size)
2061 This module supports multiple cards. The module is compiled only when
2062 PCMCIA is supported on kernel.
2064 With the older 2.6.x kernel, to activate the driver via the card
2065 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
2066 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
2067 longer require a config file.
2069 When the driver is compiled as a module and the hotplug firmware
2070 is supported, the firmware data is loaded via hotplug automatically.
2071 Install the necessary firmware files in alsa-firmware package.
2072 When no hotplug fw loader is available, you need to load the
2073 firmware via vxloader utility in alsa-tools package.
2075 About capture IBL, see the description of snd-vx222 module.
2077 Note: snd-vxp440 driver is merged to snd-vxpocket driver since
2078 ALSA 1.0.10.
2080 The power-management is supported.
2082 Module snd-ymfpci
2083 -----------------
2085 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
2087 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
2088 1 (auto-detect for YMF744/754 only)
2089 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
2090 1 (auto-detect for YMF744/754 only)
2091 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
2092 1 (auto-detect)
2093 rear_switch - enable shared rear/line-in switch (bool)
2095 This module supports autoprobe and multiple chips.
2097 The power-management is supported.
2099 Module snd-pdaudiocf
2100 --------------------
2102 Module for Sound Core PDAudioCF sound card.
2104 The power-management is supported.
2107 AC97 Quirk Option
2108 =================
2110 The ac97_quirk option is used to enable/override the workaround for
2111 specific devices on drivers for on-board AC'97 controllers like
2112 snd-intel8x0. Some hardware have swapped output pins between Master
2113 and Headphone, or Surround (thanks to confusion of AC'97
2114 specifications from version to version :-)
2116 The driver provides the auto-detection of known problematic devices,
2117 but some might be unknown or wrongly detected. In such a case, pass
2118 the proper value with this option.
2120 The following strings are accepted:
2121 - default Don't override the default setting
2122 - none Disable the quirk
2123 - hp_only Bind Master and Headphone controls as a single control
2124 - swap_hp Swap headphone and master controls
2125 - swap_surround Swap master and surround controls
2126 - ad_sharing For AD1985, turn on OMS bit and use headphone
2127 - alc_jack For ALC65x, turn on the jack sense mode
2128 - inv_eapd Inverted EAPD implementation
2129 - mute_led Bind EAPD bit for turning on/off mute LED
2131 For backward compatibility, the corresponding integer value -1, 0,
2132 ... are accepted, too.
2134 For example, if "Master" volume control has no effect on your device
2135 but only "Headphone" does, pass ac97_quirk=hp_only module option.
2138 Configuring Non-ISAPNP Cards
2139 ============================
2141 When the kernel is configured with ISA-PnP support, the modules
2142 supporting the isapnp cards will have module options "isapnp".
2143 If this option is set, *only* the ISA-PnP devices will be probed.
2144 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2145 together with the proper i/o and irq configuration.
2147 When the kernel is configured without ISA-PnP support, isapnp option
2148 will be not built in.
2151 Module Autoloading Support
2152 ==========================
2154 The ALSA drivers can be loaded automatically on demand by defining
2155 module aliases. The string 'snd-card-%1' is requested for ALSA native
2156 devices where %i is sound card number from zero to seven.
2158 To auto-load an ALSA driver for OSS services, define the string
2159 'sound-slot-%i' where %i means the slot number for OSS, which
2160 corresponds to the card index of ALSA. Usually, define this
2161 as the same card module.
2163 An example configuration for a single emu10k1 card is like below:
2164 ----- /etc/modprobe.conf
2165 alias snd-card-0 snd-emu10k1
2166 alias sound-slot-0 snd-emu10k1
2167 ----- /etc/modprobe.conf
2169 The available number of auto-loaded sound cards depends on the module
2170 option "cards_limit" of snd module. As default it's set to 1.
2171 To enable the auto-loading of multiple cards, specify the number of
2172 sound cards in that option.
2174 When multiple cards are available, it'd better to specify the index
2175 number for each card via module option, too, so that the order of
2176 cards is kept consistent.
2178 An example configuration for two sound cards is like below:
2180 ----- /etc/modprobe.conf
2181 # ALSA portion
2182 options snd cards_limit=2
2183 alias snd-card-0 snd-interwave
2184 alias snd-card-1 snd-ens1371
2185 options snd-interwave index=0
2186 options snd-ens1371 index=1
2187 # OSS/Free portion
2188 alias sound-slot-0 snd-interwave
2189 alias sound-slot-1 snd-ens1371
2190 ----- /etc/modprobe.conf
2192 In this example, the interwave card is always loaded as the first card
2193 (index 0) and ens1371 as the second (index 1).
2195 Alternative (and new) way to fixate the slot assignment is to use
2196 "slots" option of snd module. In the case above, specify like the
2197 following:
2199 options snd slots=snd-interwave,snd-ens1371
2201 Then, the first slot (#0) is reserved for snd-interwave driver, and
2202 the second (#1) for snd-ens1371. You can omit index option in each
2203 driver if slots option is used (although you can still have them at
2204 the same time as long as they don't conflict).
2206 The slots option is especially useful for avoiding the possible
2207 hot-plugging and the resultant slot conflict. For example, in the
2208 case above again, the first two slots are already reserved. If any
2209 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2210 snd-ens1371, it will be assigned to the third or later slot.
2212 When a module name is given with '!', the slot will be given for any
2213 modules but that name. For example, "slots=!snd-pcsp" will reserve
2214 the first slot for any modules but snd-pcsp.
2217 ALSA PCM devices to OSS devices mapping
2218 =======================================
2220 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
2221 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
2222 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
2223 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
2224 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
2225 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
2226 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
2227 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
2228 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
2230 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2231 sound card number and second means device number. The ALSA devices
2232 have either 'c' or 'p' suffix indicating the direction, capture and
2233 playback, respectively.
2235 Please note that the device mapping above may be varied via the module
2236 options of snd-pcm-oss module.
2239 Proc interfaces (/proc/asound)
2240 ==============================
2242 /proc/asound/card#/pcm#[cp]/oss
2243 -------------------------------
2244 String "erase" - erase all additional information about OSS applications
2245 String "<app_name> <fragments> <fragment_size> [<options>]"
2247 <app_name> - name of application with (higher priority) or without path
2248 <fragments> - number of fragments or zero if auto
2249 <fragment_size> - size of fragment in bytes or zero if auto
2250 <options> - optional parameters
2251 - disable the application tries to open a pcm device for
2252 this channel but does not want to use it.
2253 (Cause a bug or mmap needs)
2254 It's good for Quake etc...
2255 - direct don't use plugins
2256 - block force block mode (rvplayer)
2257 - non-block force non-block mode
2258 - whole-frag write only whole fragments (optimization affecting
2259 playback only)
2260 - no-silence do not fill silence ahead to avoid clicks
2261 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
2262 instead of filled blocks
2264 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2265 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2266 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2269 Early Buffer Allocation
2270 =======================
2272 Some drivers (e.g. hdsp) require the large contiguous buffers, and
2273 sometimes it's too late to find such spaces when the driver module is
2274 actually loaded due to memory fragmentation. You can pre-allocate the
2275 PCM buffers by loading snd-page-alloc module and write commands to its
2276 proc file in prior, for example, in the early boot stage like
2277 /etc/init.d/*.local scripts.
2279 Reading the proc file /proc/drivers/snd-page-alloc shows the current
2280 usage of page allocation. In writing, you can send the following
2281 commands to the snd-page-alloc driver:
2283 - add VENDOR DEVICE MASK SIZE BUFFERS
2285 VENDOR and DEVICE are PCI vendor and device IDs. They take
2286 integer numbers (0x prefix is needed for the hex).
2287 MASK is the PCI DMA mask. Pass 0 if not restricted.
2288 SIZE is the size of each buffer to allocate. You can pass
2289 k and m suffix for KB and MB. The max number is 16MB.
2290 BUFFERS is the number of buffers to allocate. It must be greater
2291 than 0. The max number is 4.
2293 - erase
2295 This will erase the all pre-allocated buffers which are not in
2296 use.
2299 Links and Addresses
2300 ===================
2302 ALSA project homepage
2303 http://www.alsa-project.org
2305 Kernel Bugzilla
2306 http://bugzilla.kernel.org/
2308 ALSA Developers ML
2309 mailto:alsa-devel@alsa-project.org
2311 alsa-info.sh script
2312 http://www.alsa-project.org/alsa-info.sh