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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 device_mode
61 - permission mask for dynamic sound device filesystem
62 - This is available only when DEVFS is enabled
63 - Default: 0666
64 - E.g.: device_mode=0660
67 Module snd-pcm-oss
68 ------------------
70 The PCM OSS emulation module.
71 This module takes options which change the mapping of devices.
73 dsp_map - PCM device number maps assigned to the 1st OSS device.
74 - Default: 0
75 adsp_map - PCM device number maps assigned to the 2st OSS device.
76 - Default: 1
77 nonblock_open
78 - Don't block opening busy PCM devices. Default: 1
80 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
81 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped
82 to PCM #0 of the card #0.
83 For changing the second or later card, specify the option with
84 commas, such like "dsp_map=0,1".
86 nonblock_open option is used to change the behavior of the PCM
87 regarding opening the device. When this option is non-zero,
88 opening a busy OSS PCM device won't be blocked but return
89 immediately with EAGAIN (just like O_NONBLOCK flag).
91 Module snd-rawmidi
92 ------------------
94 This module takes options which change the mapping of devices.
95 similar to those of the snd-pcm-oss module.
97 midi_map - MIDI device number maps assigned to the 1st OSS device.
98 - Default: 0
99 amidi_map - MIDI device number maps assigned to the 2st OSS device.
100 - Default: 1
102 Common parameters for top sound card modules
103 --------------------------------------------
105 Each of top level sound card module takes the following options.
107 index - index (slot #) of sound card
108 - Values: 0 through 31 or negative
109 - If nonnegative, assign that index number
110 - if negative, interpret as a bitmask of permissible
111 indices; the first free permitted index is assigned
112 - Default: -1
113 id - card ID (identifier or name)
114 - Can be up to 15 characters long
115 - Default: the card type
116 - A directory by this name is created under /proc/asound/
117 containing information about the card
118 - This ID can be used instead of the index number in
119 identifying the card
120 enable - enable card
121 - Default: enabled, for PCI and ISA PnP cards
123 Module snd-adlib
124 ----------------
126 Module for AdLib FM cards.
128 port - port # for OPL chip
130 This module supports multiple cards. It does not support autoprobe, so
131 the port must be specified. For actual AdLib FM cards it will be 0x388.
132 Note that this card does not have PCM support and no mixer; only FM
133 synthesis.
135 Make sure you have "sbiload" from the alsa-tools package available and,
136 after loading the module, find out the assigned ALSA sequencer port
137 number through "sbiload -l". Example output:
139 Port Client name Port name
140 64:0 OPL2 FM synth OPL2 FM Port
142 Load the std.sb and drums.sb patches also supplied by sbiload:
144 sbiload -p 64:0 std.sb drums.sb
146 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
147 instead. To have the card produce sound, use aplaymidi from alsa-utils:
149 aplaymidi -p 64:0 foo.mid
151 Module snd-ad1816a
152 ------------------
154 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
156 port - port # for AD1816A chip (PnP setup)
157 mpu_port - port # for MPU-401 UART (PnP setup)
158 fm_port - port # for OPL3 (PnP setup)
159 irq - IRQ # for AD1816A chip (PnP setup)
160 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
161 dma1 - first DMA # for AD1816A chip (PnP setup)
162 dma2 - second DMA # for AD1816A chip (PnP setup)
163 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz)
165 This module supports multiple cards, autoprobe and PnP.
167 Module snd-ad1848
168 -----------------
170 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
172 port - port # for AD1848 chip
173 irq - IRQ # for AD1848 chip
174 dma1 - DMA # for AD1848 chip (0,1,3)
176 This module supports multiple cards. It does not support autoprobe
177 thus main port must be specified!!! Other ports are optional.
179 The power-management is supported.
181 Module snd-ad1889
182 -----------------
184 Module for Analog Devices AD1889 chips.
186 ac97_quirk - AC'97 workaround for strange hardware
187 See the description of intel8x0 module for details.
189 This module supports multiple cards.
191 Module snd-ali5451
192 ------------------
194 Module for ALi M5451 PCI chip.
196 pcm_channels - Number of hardware channels assigned for PCM
197 spdif - Support SPDIF I/O
198 - Default: disabled
200 This module supports one chip and autoprobe.
202 The power-management is supported.
204 Module snd-als100
205 -----------------
207 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
209 port - port # for ALS100 (SB16) chip (PnP setup)
210 irq - IRQ # for ALS100 (SB16) chip (PnP setup)
211 dma8 - 8-bit DMA # for ALS100 (SB16) chip (PnP setup)
212 dma16 - 16-bit DMA # for ALS100 (SB16) chip (PnP setup)
213 mpu_port - port # for MPU-401 UART (PnP setup)
214 mpu_irq - IRQ # for MPU-401 (PnP setup)
215 fm_port - port # for OPL3 FM (PnP setup)
217 This module supports multiple cards, autoprobe and PnP.
219 The power-management is supported.
221 Module snd-als300
222 -----------------
224 Module for Avance Logic ALS300 and ALS300+
226 This module supports multiple cards.
228 The power-management is supported.
230 Module snd-als4000
231 ------------------
233 Module for sound cards based on Avance Logic ALS4000 PCI chip.
235 joystick_port - port # for legacy joystick support.
236 0 = disabled (default), 1 = auto-detect
238 This module supports multiple cards, autoprobe and PnP.
240 The power-management is supported.
242 Module snd-atiixp
243 -----------------
245 Module for ATI IXP 150/200/250/400 AC97 controllers.
247 ac97_clock - AC'97 clock (default = 48000)
248 ac97_quirk - AC'97 workaround for strange hardware
249 See "AC97 Quirk Option" section below.
250 spdif_aclink - S/PDIF transfer over AC-link (default = 1)
252 This module supports one card and autoprobe.
254 ATI IXP has two different methods to control SPDIF output. One is
255 over AC-link and another is over the "direct" SPDIF output. The
256 implementation depends on the motherboard, and you'll need to
257 choose the correct one via spdif_aclink module option.
259 The power-management is supported.
261 Module snd-atiixp-modem
262 -----------------------
264 Module for ATI IXP 150/200/250 AC97 modem controllers.
266 This module supports one card and autoprobe.
268 Note: The default index value of this module is -2, i.e. the first
269 slot is excluded.
271 The power-management is supported.
273 Module snd-au8810, snd-au8820, snd-au8830
274 -----------------------------------------
276 Module for Aureal Vortex, Vortex2 and Advantage device.
278 pcifix - Control PCI workarounds
279 0 = Disable all workarounds
280 1 = Force the PCI latency of the Aureal card to 0xff
281 2 = Force the Extend PCI#2 Internal Master for Efficient
282 Handling of Dummy Requests on the VIA KT133 AGP Bridge
283 3 = Force both settings
284 255 = Autodetect what is required (default)
286 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
287 EQ, mpu401, gameport. A3D and wavetable support are still in development.
288 Development and reverse engineering work is being coordinated at
289 http://savannah.nongnu.org/projects/openvortex/
290 SPDIF output has a copy of the AC97 codec output, unless you use the
291 "spdif" pcm device, which allows raw data passthru.
292 The hardware EQ hardware and SPDIF is only present in the Vortex2 and
293 Advantage.
295 Note: Some ALSA mixer applications don't handle the SPDIF sample rate
296 control correctly. If you have problems regarding this, try
297 another ALSA compliant mixer (alsamixer works).
299 Module snd-azt2320
300 ------------------
302 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
304 port - port # for AZT2320 chip (PnP setup)
305 wss_port - port # for WSS (PnP setup)
306 mpu_port - port # for MPU-401 UART (PnP setup)
307 fm_port - FM port # for AZT2320 chip (PnP setup)
308 irq - IRQ # for AZT2320 (WSS) chip (PnP setup)
309 mpu_irq - IRQ # for MPU-401 UART (PnP setup)
310 dma1 - 1st DMA # for AZT2320 (WSS) chip (PnP setup)
311 dma2 - 2nd DMA # for AZT2320 (WSS) chip (PnP setup)
313 This module supports multiple cards, PnP and autoprobe.
315 The power-management is supported.
317 Module snd-azt3328
318 ------------------
320 Module for sound cards based on Aztech AZF3328 PCI chip.
322 joystick - Enable joystick (default off)
324 This module supports multiple cards.
326 Module snd-bt87x
327 ----------------
329 Module for video cards based on Bt87x chips.
331 digital_rate - Override the default digital rate (Hz)
332 load_all - Load the driver even if the card model isn't known
334 This module supports multiple cards.
336 Note: The default index value of this module is -2, i.e. the first
337 slot is excluded.
339 Module snd-ca0106
340 -----------------
342 Module for Creative Audigy LS and SB Live 24bit
344 This module supports multiple cards.
347 Module snd-cmi8330
348 ------------------
350 Module for sound cards based on C-Media CMI8330 ISA chips.
352 wssport - port # for CMI8330 chip (WSS)
353 wssirq - IRQ # for CMI8330 chip (WSS)
354 wssdma - first DMA # for CMI8330 chip (WSS)
355 sbport - port # for CMI8330 chip (SB16)
356 sbirq - IRQ # for CMI8330 chip (SB16)
357 sbdma8 - 8bit DMA # for CMI8330 chip (SB16)
358 sbdma16 - 16bit DMA # for CMI8330 chip (SB16)
360 This module supports multiple cards and autoprobe.
362 The power-management is supported.
364 Module snd-cmipci
365 -----------------
367 Module for C-Media CMI8338 and 8738 PCI sound cards.
369 mpu_port - 0x300,0x310,0x320,0x330, 0 = disable (default)
370 fm_port - 0x388 (default), 0 = disable (default)
371 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
372 (default = 1)
373 joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
375 This module supports autoprobe and multiple cards.
377 The power-management is supported.
379 Module snd-cs4231
380 -----------------
382 Module for sound cards based on CS4231 ISA chips.
384 port - port # for CS4231 chip
385 mpu_port - port # for MPU-401 UART (optional), -1 = disable
386 irq - IRQ # for CS4231 chip
387 mpu_irq - IRQ # for MPU-401 UART
388 dma1 - first DMA # for CS4231 chip
389 dma2 - second DMA # for CS4231 chip
391 This module supports multiple cards. This module does not support autoprobe
392 thus main port must be specified!!! Other ports are optional.
394 The power-management is supported.
396 Module snd-cs4232
397 -----------------
399 Module for sound cards based on CS4232/CS4232A ISA chips.
401 port - port # for CS4232 chip (PnP setup - 0x534)
402 cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
403 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
404 fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
405 irq - IRQ # for CS4232 chip (5,7,9,11,12,15)
406 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
407 dma1 - first DMA # for CS4232 chip (0,1,3)
408 dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
409 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
411 This module supports multiple cards. This module does not support autoprobe
412 thus main port must be specified!!! Other ports are optional.
414 The power-management is supported.
416 Module snd-cs4236
417 -----------------
419 Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
420 CS4238B/CS4239 ISA chips.
422 port - port # for CS4236 chip (PnP setup - 0x534)
423 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
424 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
425 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
426 irq - IRQ # for CS4236 chip (5,7,9,11,12,15)
427 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15)
428 dma1 - first DMA # for CS4236 chip (0,1,3)
429 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable
430 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
432 This module supports multiple cards. This module does not support autoprobe
433 (if ISA PnP is not used) thus main port and control port must be
434 specified!!! Other ports are optional.
436 The power-management is supported.
438 Module snd-cs4281
439 -----------------
441 Module for Cirrus Logic CS4281 soundchip.
443 dual_codec - Secondary codec ID (0 = disable, default)
445 This module supports multiple cards.
447 The power-management is supported.
449 Module snd-cs46xx
450 -----------------
452 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
453 CS4624/CS4630/CS4280 PCI chips.
455 external_amp - Force to enable external amplifier.
456 thinkpad - Force to enable Thinkpad's CLKRUN control.
457 mmap_valid - Support OSS mmap mode (default = 0).
459 This module supports multiple cards and autoprobe.
460 Usually external amp and CLKRUN controls are detected automatically
461 from PCI sub vendor/device ids. If they don't work, give the options
462 above explicitly.
464 The power-management is supported.
466 Module snd-cs5535audio
467 ----------------------
469 Module for multifunction CS5535 companion PCI device
471 This module supports multiple cards.
473 Module snd-dt019x
474 -----------------
476 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
477 only)
479 port - Port # (PnP setup)
480 mpu_port - Port # for MPU-401 (PnP setup)
481 fm_port - Port # for FM OPL-3 (PnP setup)
482 irq - IRQ # (PnP setup)
483 mpu_irq - IRQ # for MPU-401 (PnP setup)
484 dma8 - DMA # (PnP setup)
486 This module supports multiple cards. This module is enabled only with
487 ISA PnP support.
489 The power-management is supported.
491 Module snd-dummy
492 ----------------
494 Module for the dummy sound card. This "card" doesn't do any output
495 or input, but you may use this module for any application which
496 requires a sound card (like RealPlayer).
498 The power-management is supported.
500 Module snd-emu10k1
501 ------------------
503 Module for EMU10K1/EMU10k2 based PCI sound cards.
504 * Sound Blaster Live!
505 * Sound Blaster PCI 512
506 * Emu APS (partially supported)
507 * Sound Blaster Audigy
509 extin - bitmap of available external inputs for FX8010 (see bellow)
510 extout - bitmap of available external outputs for FX8010 (see bellow)
511 seq_ports - allocated sequencer ports (4 by default)
512 max_synth_voices - limit of voices used for wavetable (64 by default)
513 max_buffer_size - specifies the maximum size of wavetable/pcm buffers
514 given in MB unit. Default value is 128.
515 enable_ir - enable IR
517 This module supports multiple cards and autoprobe.
519 Input & Output configurations [extin/extout]
520 * Creative Card wo/Digital out [0x0003/0x1f03]
521 * Creative Card w/Digital out [0x0003/0x1f0f]
522 * Creative Card w/Digital CD in [0x000f/0x1f0f]
523 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3]
524 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf]
525 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf]
526 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
527 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f]
528 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
529 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff]
530 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
531 * Creative Card all ins and outs [0x3fff/0x7fff]
533 The power-management is supported.
535 Module snd-emu10k1x
536 -------------------
538 Module for Creative Emu10k1X (SB Live Dell OEM version)
540 This module supports multiple cards.
542 Module snd-ens1370
543 ------------------
545 Module for Ensoniq AudioPCI ES1370 PCI sound cards.
546 * SoundBlaster PCI 64
547 * SoundBlaster PCI 128
549 joystick - Enable joystick (default off)
551 This module supports multiple cards and autoprobe.
553 The power-management is supported.
555 Module snd-ens1371
556 ------------------
558 Module for Ensoniq AudioPCI ES1371 PCI sound cards.
559 * SoundBlaster PCI 64
560 * SoundBlaster PCI 128
561 * SoundBlaster Vibra PCI
563 joystick_port - port # for joystick (0x200,0x208,0x210,0x218),
564 0 = disable (default), 1 = auto-detect
566 This module supports multiple cards and autoprobe.
568 The power-management is supported.
570 Module snd-es968
571 ----------------
573 Module for sound cards based on ESS ES968 chip (PnP only).
575 port - port # for ES968 (SB8) chip (PnP setup)
576 irq - IRQ # for ES968 (SB8) chip (PnP setup)
577 dma1 - DMA # for ES968 (SB8) chip (PnP setup)
579 This module supports multiple cards, PnP and autoprobe.
581 The power-management is supported.
583 Module snd-es1688
584 -----------------
586 Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
588 port - port # for ES-1688 chip (0x220,0x240,0x260)
589 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
590 irq - IRQ # for ES-1688 chip (5,7,9,10)
591 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
592 dma8 - DMA # for ES-1688 chip (0,1,3)
594 This module supports multiple cards and autoprobe (without MPU-401 port).
596 Module snd-es18xx
597 -----------------
599 Module for ESS AudioDrive ES-18xx sound cards.
601 port - port # for ES-18xx chip (0x220,0x240,0x260)
602 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
603 fm_port - port # for FM (optional, not used)
604 irq - IRQ # for ES-18xx chip (5,7,9,10)
605 dma1 - first DMA # for ES-18xx chip (0,1,3)
606 dma2 - first DMA # for ES-18xx chip (0,1,3)
607 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
609 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
610 port if native ISA PnP routines are not used).
611 When dma2 is equal with dma1, the driver works as half-duplex.
613 The power-management is supported.
615 Module snd-es1938
616 -----------------
618 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
620 This module supports multiple cards and autoprobe.
622 The power-management is supported.
624 Module snd-es1968
625 -----------------
627 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
629 total_bufsize - total buffer size in kB (1-4096kB)
630 pcm_substreams_p - playback channels (1-8, default=2)
631 pcm_substreams_c - capture channels (1-8, default=0)
632 clock - clock (0 = auto-detection)
633 use_pm - support the power-management (0 = off, 1 = on,
634 2 = auto (default))
635 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
636 joystick - enable joystick (default off)
638 This module supports multiple cards and autoprobe.
640 The power-management is supported.
642 Module snd-fm801
643 ----------------
645 Module for ForteMedia FM801 based PCI sound cards.
647 tea575x_tuner - Enable TEA575x tuner
648 - 1 = MediaForte 256-PCS
649 - 2 = MediaForte 256-PCPR
650 - 3 = MediaForte 64-PCR
651 - High 16-bits are video (radio) device number + 1
652 - example: 0x10002 (MediaForte 256-PCPR, device 1)
654 This module supports multiple cards and autoprobe.
656 The power-management is supported.
658 Module snd-gusclassic
659 ---------------------
661 Module for Gravis UltraSound Classic sound card.
663 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
664 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
665 dma1 - DMA # for GF1 chip (1,3,5,6,7)
666 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
667 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
668 voices - GF1 voices limit (14-32)
669 pcm_voices - reserved PCM voices
671 This module supports multiple cards and autoprobe.
673 Module snd-gusextreme
674 ---------------------
676 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
678 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
679 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
680 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
681 irq - IRQ # for ES-1688 chip (5,7,9,10)
682 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15)
683 mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
684 dma8 - DMA # for ES-1688 chip (0,1,3)
685 dma1 - DMA # for GF1 chip (1,3,5,6,7)
686 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
687 voices - GF1 voices limit (14-32)
688 pcm_voices - reserved PCM voices
690 This module supports multiple cards and autoprobe (without MPU-401 port).
692 Module snd-gusmax
693 -----------------
695 Module for Gravis UltraSound MAX sound card.
697 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
698 irq - IRQ # for GF1 chip (3,5,9,11,12,15)
699 dma1 - DMA # for GF1 chip (1,3,5,6,7)
700 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
701 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
702 voices - GF1 voices limit (14-32)
703 pcm_voices - reserved PCM voices
705 This module supports multiple cards and autoprobe.
707 Module snd-hda-intel
708 --------------------
710 Module for Intel HD Audio (ICH6, ICH6M, ICH7), ATI SB450,
711 VIA VT8251/VT8237A
713 model - force the model name
714 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
715 single_cmd - Use single immediate commands to communicate with
716 codecs (for debugging only)
718 This module supports one card and autoprobe.
720 Each codec may have a model table for different configurations.
721 If your machine isn't listed there, the default (usually minimal)
722 configuration is set up. You can pass "model=<name>" option to
723 specify a certain model in such a case. There are different
724 models depending on the codec chip.
726 Model name Description
727 ---------- -----------
728 ALC880
729 3stack 3-jack in back and a headphone out
730 3stack-digout 3-jack in back, a HP out and a SPDIF out
731 5stack 5-jack in back, 2-jack in front
732 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
733 6stack 6-jack in back, 2-jack in front
734 6stack-digout 6-jack with a SPDIF out
735 w810 3-jack
736 z71v 3-jack (HP shared SPDIF)
737 asus 3-jack
738 uniwill 3-jack
739 F1734 2-jack
740 lg LG laptop (m1 express dual)
741 lg-lw LG LW20 laptop
742 test for testing/debugging purpose, almost all controls can be
743 adjusted. Appearing only when compiled with
744 $CONFIG_SND_DEBUG=y
745 auto auto-config reading BIOS (default)
747 ALC260
748 hp HP machines
749 fujitsu Fujitsu S7020
750 acer Acer TravelMate
751 basic fixed pin assignment (old default model)
752 auto auto-config reading BIOS (default)
754 ALC262
755 fujitsu Fujitsu Laptop
756 basic fixed pin assignment w/o SPDIF
757 auto auto-config reading BIOS (default)
759 ALC882/883/885
760 3stack-dig 3-jack with SPDIF I/O
761 6stck-dig 6-jack digital with SPDIF I/O
762 auto auto-config reading BIOS (default)
764 ALC861
765 3stack 3-jack
766 3stack-dig 3-jack with SPDIF I/O
767 6stack-dig 6-jack with SPDIF I/O
768 auto auto-config reading BIOS (default)
770 CMI9880
771 minimal 3-jack in back
772 min_fp 3-jack in back, 2-jack in front
773 full 6-jack in back, 2-jack in front
774 full_dig 6-jack in back, 2-jack in front, SPDIF I/O
775 allout 5-jack in back, 2-jack in front, SPDIF out
776 auto auto-config reading BIOS (default)
778 AD1981
779 basic 3-jack (default)
780 hp HP nx6320
782 AD1986A
783 6stack 6-jack, separate surrounds (default)
784 3stack 3-stack, shared surrounds
785 laptop 2-channel only (FSC V2060, Samsung M50)
786 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
788 AD1988
789 6stack 6-jack
790 6stack-dig ditto with SPDIF
791 3stack 3-jack
792 3stack-dig ditto with SPDIF
793 laptop 3-jack with hp-jack automute
794 laptop-dig ditto with SPDIF
795 auto auto-confgi reading BIOS (default)
797 STAC7661(?)
798 vaio Setup for VAIO FE550G/SZ110
800 If the default configuration doesn't work and one of the above
801 matches with your device, report it together with the PCI
802 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
803 ML (see the section "Links and Addresses").
805 Note 2: If you get click noises on output, try the module option
806 position_fix=1 or 2. position_fix=1 will use the SD_LPIB
807 register value without FIFO size correction as the current
808 DMA pointer. position_fix=2 will make the driver to use
809 the position buffer instead of reading SD_LPIB register.
810 (Usually SD_LPLIB register is more accurate than the
811 position buffer.)
813 NB: If you get many "azx_get_response timeout" messages at
814 loading, it's likely a problem of interrupts (e.g. ACPI irq
815 routing). Try to boot with options like "pci=noacpi". Also, you
816 can try "single_cmd=1" module option. This will switch the
817 communication method between HDA controller and codecs to the
818 single immediate commands instead of CORB/RIRB. Basically, the
819 single command mode is provided only for BIOS, and you won't get
820 unsolicited events, too. But, at least, this works independently
821 from the irq. Remember this is a last resort, and should be
822 avoided as much as possible...
824 The power-management is supported.
826 Module snd-hdsp
827 ---------------
829 Module for RME Hammerfall DSP audio interface(s)
831 This module supports multiple cards.
833 Note: The firmware data can be automatically loaded via hotplug
834 when CONFIG_FW_LOADER is set. Otherwise, you need to load
835 the firmware via hdsploader utility included in alsa-tools
836 package.
837 The firmware data is found in alsa-firmware package.
839 Note: snd-page-alloc module does the job which snd-hammerfall-mem
840 module did formerly. It will allocate the buffers in advance
841 when any HDSP cards are found. To make the buffer
842 allocation sure, load snd-page-alloc module in the early
843 stage of boot sequence. See "Early Buffer Allocation"
844 section.
846 Module snd-hdspm
847 ----------------
849 Module for RME HDSP MADI board.
851 precise_ptr - Enable precise pointer, or disable.
852 line_outs_monitor - Send playback streams to analog outs by default.
853 enable_monitor - Enable Analog Out on Channel 63/64 by default.
855 See hdspm.txt for details.
857 Module snd-ice1712
858 ------------------
860 Module for Envy24 (ICE1712) based PCI sound cards.
861 * MidiMan M Audio Delta 1010
862 * MidiMan M Audio Delta 1010LT
863 * MidiMan M Audio Delta DiO 2496
864 * MidiMan M Audio Delta 66
865 * MidiMan M Audio Delta 44
866 * MidiMan M Audio Delta 410
867 * MidiMan M Audio Audiophile 2496
868 * TerraTec EWS 88MT
869 * TerraTec EWS 88D
870 * TerraTec EWX 24/96
871 * TerraTec DMX 6Fire
872 * TerraTec Phase 88
873 * Hoontech SoundTrack DSP 24
874 * Hoontech SoundTrack DSP 24 Value
875 * Hoontech SoundTrack DSP 24 Media 7.1
876 * Event Electronics, EZ8
877 * Digigram VX442
878 * Lionstracs, Mediastaton
880 model - Use the given board model, one of the following:
881 delta1010, dio2496, delta66, delta44, audiophile, delta410,
882 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
883 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
884 phase88, mediastation
885 omni - Omni I/O support for MidiMan M-Audio Delta44/66
886 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transciever)
887 in msec resolution, default value is 500 (0.5 sec)
889 This module supports multiple cards and autoprobe. Note: The consumer part
890 is not used with all Envy24 based cards (for example in the MidiMan Delta
891 serie).
893 Note: The supported board is detected by reading EEPROM or PCI
894 SSID (if EEPROM isn't available). You can override the
895 model by passing "model" module option in case that the
896 driver isn't configured properly or you want to try another
897 type for testing.
899 Module snd-ice1724
900 ------------------
902 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
903 * MidiMan M Audio Revolution 5.1
904 * MidiMan M Audio Revolution 7.1
905 * AMP Ltd AUDIO2000
906 * TerraTec Aureon 5.1 Sky
907 * TerraTec Aureon 7.1 Space
908 * TerraTec Aureon 7.1 Universe
909 * TerraTec Phase 22
910 * TerraTec Phase 28
911 * AudioTrak Prodigy 7.1
912 * AudioTrak Prodigy 7.1LT
913 * AudioTrak Prodigy 192
914 * Pontis MS300
915 * Albatron K8X800 Pro II
916 * Chaintech ZNF3-150
917 * Chaintech ZNF3-250
918 * Chaintech 9CJS
919 * Chaintech AV-710
920 * Shuttle SN25P
922 model - Use the given board model, one of the following:
923 revo51, revo71, amp2000, prodigy71, prodigy71lt,
924 prodigy192, aureon51, aureon71, universe,
925 k8x800, phase22, phase28, ms300, av710
927 This module supports multiple cards and autoprobe.
929 Note: The supported board is detected by reading EEPROM or PCI
930 SSID (if EEPROM isn't available). You can override the
931 model by passing "model" module option in case that the
932 driver isn't configured properly or you want to try another
933 type for testing.
935 Module snd-intel8x0
936 -------------------
938 Module for AC'97 motherboards from Intel and compatibles.
939 * Intel i810/810E, i815, i820, i830, i84x, MX440
940 ICH5, ICH6, ICH7, ESB2
941 * SiS 7012 (SiS 735)
942 * NVidia NForce, NForce2, NForce3, MCP04, CK804
943 CK8, CK8S, MCP501
944 * AMD AMD768, AMD8111
945 * ALi m5455
947 ac97_clock - AC'97 codec clock base (0 = auto-detect)
948 ac97_quirk - AC'97 workaround for strange hardware
949 See "AC97 Quirk Option" section below.
950 buggy_irq - Enable workaround for buggy interrupts on some
951 motherboards (default yes on nForce chips,
952 otherwise off)
953 buggy_semaphore - Enable workaround for hardwares with buggy
954 semaphores (e.g. on some ASUS laptops)
955 (default off)
957 This module supports one chip and autoprobe.
959 Note: the latest driver supports auto-detection of chip clock.
960 if you still encounter too fast playback, specify the clock
961 explicitly via the module option "ac97_clock=41194".
963 Joystick/MIDI ports are not supported by this driver. If your
964 motherboard has these devices, use the ns558 or snd-mpu401
965 modules, respectively.
967 The power-management is supported.
969 Module snd-intel8x0m
970 --------------------
972 Module for Intel ICH (i8x0) chipset MC97 modems.
973 * Intel i810/810E, i815, i820, i830, i84x, MX440
974 ICH5, ICH6, ICH7
975 * SiS 7013 (SiS 735)
976 * NVidia NForce, NForce2, NForce2s, NForce3
977 * AMD AMD8111
978 * ALi m5455
980 ac97_clock - AC'97 codec clock base (0 = auto-detect)
982 This module supports one card and autoprobe.
984 Note: The default index value of this module is -2, i.e. the first
985 slot is excluded.
987 The power-management is supported.
989 Module snd-interwave
990 --------------------
992 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
993 and other sound cards based on AMD InterWave (tm) chip.
995 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
996 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
997 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
998 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
999 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1000 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1001 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1002 effect - 1 = InterWave effects enable (default 0);
1003 requires 8 voices
1005 This module supports multiple cards, autoprobe and ISA PnP.
1007 Module snd-interwave-stb
1008 ------------------------
1010 Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1011 and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1012 circuit for extended control of bass, treble and master volume.
1014 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1015 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1016 irq - IRQ # for InterWave chip (3,5,9,11,12,15)
1017 dma1 - DMA # for InterWave chip (0,1,3,5,6,7)
1018 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1019 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1020 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1021 pcm_voices - reserved PCM voices for the synthesizer (default 2)
1022 effect - 1 = InterWave effects enable (default 0);
1023 requires 8 voices
1025 This module supports multiple cards, autoprobe and ISA PnP.
1027 Module snd-korg1212
1028 -------------------
1030 Module for Korg 1212 IO PCI card
1032 This module supports multiple cards.
1034 Module snd-maestro3
1035 -------------------
1037 Module for Allegro/Maestro3 chips
1039 external_amp - enable external amp (enabled by default)
1040 amp_gpio - GPIO pin number for external amp (0-15) or
1041 -1 for default pin (8 for allegro, 1 for
1042 others)
1044 This module supports autoprobe and multiple chips.
1046 Note: the binding of amplifier is dependent on hardware.
1047 If there is no sound even though all channels are unmuted, try to
1048 specify other gpio connection via amp_gpio option.
1049 For example, a Panasonic notebook might need "amp_gpio=0x0d"
1050 option.
1052 The power-management is supported.
1054 Module snd-miro
1055 ---------------
1057 Module for Miro soundcards: miroSOUND PCM 1 pro,
1058 miroSOUND PCM 12,
1059 miroSOUND PCM 20 Radio.
1061 port - Port # (0x530,0x604,0xe80,0xf40)
1062 irq - IRQ # (5,7,9,10,11)
1063 dma1 - 1st dma # (0,1,3)
1064 dma2 - 2nd dma # (0,1)
1065 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
1066 mpu_irq - MPU-401 irq # (5,7,9,10)
1067 fm_port - FM Port # (0x388)
1068 wss - enable WSS mode
1069 ide - enable onboard ide support
1071 Module snd-mixart
1072 -----------------
1074 Module for Digigram miXart8 sound cards.
1076 This module supports multiple cards.
1077 Note: One miXart8 board will be represented as 4 alsa cards.
1078 See MIXART.txt for details.
1080 When the driver is compiled as a module and the hotplug firmware
1081 is supported, the firmware data is loaded via hotplug automatically.
1082 Install the necessary firmware files in alsa-firmware package.
1083 When no hotplug fw loader is available, you need to load the
1084 firmware via mixartloader utility in alsa-tools package.
1086 Module snd-mpu401
1087 -----------------
1089 Module for MPU-401 UART devices.
1091 port - port number or -1 (disable)
1092 irq - IRQ number or -1 (disable)
1093 pnp - PnP detection - 0 = disable, 1 = enable (default)
1095 This module supports multiple devices and PnP.
1097 Module snd-mtpav
1098 ----------------
1100 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1101 port).
1103 port - I/O port # for MTPAV (0x378,0x278, default=0x378)
1104 irq - IRQ # for MTPAV (7,5, default=7)
1105 hwports - number of supported hardware ports, default=8.
1107 Module supports only 1 card. This module has no enable option.
1109 Module snd-nm256
1110 ----------------
1112 Module for NeoMagic NM256AV/ZX chips
1114 playback_bufsize - max playback frame size in kB (4-128kB)
1115 capture_bufsize - max capture frame size in kB (4-128kB)
1116 force_ac97 - 0 or 1 (disabled by default)
1117 buffer_top - specify buffer top address
1118 use_cache - 0 or 1 (disabled by default)
1119 vaio_hack - alias buffer_top=0x25a800
1120 reset_workaround - enable AC97 RESET workaround for some laptops
1121 reset_workaround2 - enable extended AC97 RESET workaround for some
1122 other laptops
1124 This module supports one chip and autoprobe.
1126 The power-management is supported.
1128 Note: on some notebooks the buffer address cannot be detected
1129 automatically, or causes hang-up during initialization.
1130 In such a case, specify the buffer top address explicity via
1131 buffer_top option.
1132 For example,
1133 Sony F250: buffer_top=0x25a800
1134 Sony F270: buffer_top=0x272800
1135 The driver supports only ac97 codec. It's possible to force
1136 to initialize/use ac97 although it's not detected. In such a
1137 case, use force_ac97=1 option - but *NO* guarantee whether it
1138 works!
1140 Note: The NM256 chip can be linked internally with non-AC97
1141 codecs. This driver supports only the AC97 codec, and won't work
1142 with machines with other (most likely CS423x or OPL3SAx) chips,
1143 even though the device is detected in lspci. In such a case, try
1144 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP
1145 but some doesn't have ISA PnP. You'll need to specify isapnp=0
1146 and proper hardware parameters in the case without ISA PnP.
1148 Note: some laptops need a workaround for AC97 RESET. For the
1149 known hardware like Dell Latitude LS and Sony PCG-F305, this
1150 workaround is enabled automatically. For other laptops with a
1151 hard freeze, you can try reset_workaround=1 option.
1153 Note: Dell Latitude CSx laptops have another problem regarding
1154 AC97 RESET. On these laptops, reset_workaround2 option is
1155 turned on as default. This option is worth to try if the
1156 previous reset_workaround option doesn't help.
1158 Note: This driver is really crappy. It's a porting from the
1159 OSS driver, which is a result of black-magic reverse engineering.
1160 The detection of codec will fail if the driver is loaded *after*
1161 X-server as described above. You might be able to force to load
1162 the module, but it may result in hang-up. Hence, make sure that
1163 you load this module *before* X if you encounter this kind of
1164 problem.
1166 Module snd-opl3sa2
1167 ------------------
1169 Module for Yamaha OPL3-SA2/SA3 sound cards.
1171 port - control port # for OPL3-SA chip (0x370)
1172 sb_port - SB port # for OPL3-SA chip (0x220,0x240)
1173 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1174 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1175 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable
1176 irq - IRQ # for OPL3-SA chip (5,7,9,10)
1177 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1178 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1179 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1181 This module supports multiple cards and ISA PnP. It does not support
1182 autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1184 The power-management is supported.
1186 Module snd-opti92x-ad1848
1187 -------------------------
1189 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1190 Module works with OAK Mozart cards as well.
1192 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1193 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1194 fm_port - port # for OPL3 device (0x388)
1195 irq - IRQ # for WSS chip (5,7,9,10,11)
1196 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1197 dma1 - first DMA # for WSS chip (0,1,3)
1199 This module supports only one card, autoprobe and PnP.
1201 Module snd-opti92x-cs4231
1202 -------------------------
1204 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1206 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1207 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1208 fm_port - port # for OPL3 device (0x388)
1209 irq - IRQ # for WSS chip (5,7,9,10,11)
1210 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1211 dma1 - first DMA # for WSS chip (0,1,3)
1212 dma2 - second DMA # for WSS chip (0,1,3)
1214 This module supports only one card, autoprobe and PnP.
1216 Module snd-opti93x
1217 ------------------
1219 Module for sound cards based on OPTi 82c93x chips.
1221 port - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1222 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1223 fm_port - port # for OPL3 device (0x388)
1224 irq - IRQ # for WSS chip (5,7,9,10,11)
1225 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10)
1226 dma1 - first DMA # for WSS chip (0,1,3)
1227 dma2 - second DMA # for WSS chip (0,1,3)
1229 This module supports only one card, autoprobe and PnP.
1231 Module snd-pcxhr
1232 ----------------
1234 Module for Digigram PCXHR boards
1236 This module supports multiple cards.
1238 Module snd-powermac (on ppc only)
1239 ---------------------------------
1241 Module for PowerMac, iMac and iBook on-board soundchips
1243 enable_beep - enable beep using PCM (enabled as default)
1245 Module supports autoprobe a chip.
1247 Note: the driver may have problems regarding endianess.
1249 The power-management is supported.
1251 Module snd-pxa2xx-ac97 (on arm only)
1252 ------------------------------------
1254 Module for AC97 driver for the Intel PXA2xx chip
1256 For ARM architecture only.
1258 The power-management is supported.
1260 Module snd-riptide
1261 ------------------
1263 Module for Conexant Riptide chip
1265 joystick_port - Joystick port # (default: 0x200)
1266 mpu_port - MPU401 port # (default: 0x330)
1267 opl3_port - OPL3 port # (default: 0x388)
1269 This module supports multiple cards.
1270 The driver requires the firmware loader support on kernel.
1271 You need to install the firmware file "riptide.hex" to the standard
1272 firmware path (e.g. /lib/firmware).
1274 Module snd-rme32
1275 ----------------
1277 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32,
1278 Prodif96 and Prodif Gold) sound cards.
1280 This module supports multiple cards.
1282 Module snd-rme96
1283 ----------------
1285 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1287 This module supports multiple cards.
1289 Module snd-rme9652
1290 ------------------
1292 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1294 precise_ptr - Enable precise pointer (doesn't work reliably).
1295 (default = 0)
1297 This module supports multiple cards.
1299 Note: snd-page-alloc module does the job which snd-hammerfall-mem
1300 module did formerly. It will allocate the buffers in advance
1301 when any RME9652 cards are found. To make the buffer
1302 allocation sure, load snd-page-alloc module in the early
1303 stage of boot sequence. See "Early Buffer Allocation"
1304 section.
1306 Module snd-sa11xx-uda1341 (on arm only)
1307 ---------------------------------------
1309 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1311 Module supports only one card.
1312 Module has no enable and index options.
1314 The power-management is supported.
1316 Module snd-sb8
1317 --------------
1319 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1320 SoundBlaster 2.0,
1321 SoundBlaster Pro
1323 port - port # for SB DSP chip (0x220,0x240,0x260)
1324 irq - IRQ # for SB DSP chip (5,7,9,10)
1325 dma8 - DMA # for SB DSP chip (1,3)
1327 This module supports multiple cards and autoprobe.
1329 The power-management is supported.
1331 Module snd-sb16 and snd-sbawe
1332 -----------------------------
1334 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1335 SoundBlaster AWE 32 (PnP),
1336 SoundBlaster AWE 64 PnP
1338 port - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1339 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable
1340 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1341 (snd-sbawe module only)
1342 irq - IRQ # for SB DSP 4.x chip (5,7,9,10)
1343 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1344 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1345 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1346 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable
1347 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1349 This module supports multiple cards, autoprobe and ISA PnP.
1351 Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1352 disable 16bit DMA with dma16 = -1 module parameter.
1353 Also, all Sound Blaster 16 type cards can operate in 16-bit
1354 half duplex mode through 8-bit DMA channel by disabling their
1355 16-bit DMA channel.
1357 The power-management is supported.
1359 Module snd-sgalaxy
1360 ------------------
1362 Module for Aztech Sound Galaxy sound card.
1364 sbport - Port # for SB16 interface (0x220,0x240)
1365 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1366 irq - IRQ # (7,9,10,11)
1367 dma1 - DMA #
1369 This module supports multiple cards.
1371 The power-management is supported.
1373 Module snd-sscape
1374 -----------------
1376 Module for ENSONIQ SoundScape PnP cards.
1378 port - Port # (PnP setup)
1379 irq - IRQ # (PnP setup)
1380 mpu_irq - MPU-401 IRQ # (PnP setup)
1381 dma - DMA # (PnP setup)
1383 This module supports multiple cards. ISA PnP must be enabled.
1384 You need sscape_ctl tool in alsa-tools package for loading
1385 the microcode.
1387 Module snd-sun-amd7930 (on sparc only)
1388 --------------------------------------
1390 Module for AMD7930 sound chips found on Sparcs.
1392 This module supports multiple cards.
1394 Module snd-sun-cs4231 (on sparc only)
1395 -------------------------------------
1397 Module for CS4231 sound chips found on Sparcs.
1399 This module supports multiple cards.
1401 Module snd-sun-dbri (on sparc only)
1402 -----------------------------------
1404 Module for DBRI sound chips found on Sparcs.
1406 This module supports multiple cards.
1408 Module snd-wavefront
1409 --------------------
1411 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1413 cs4232_pcm_port - Port # for CS4232 PCM interface.
1414 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1415 cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1416 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1417 use_cs4232_midi - Use CS4232 MPU-401 interface
1418 (inaccessibly located inside your computer)
1419 ics2115_port - Port # for ICS2115
1420 ics2115_irq - IRQ # for ICS2115
1421 fm_port - FM OPL-3 Port #
1422 dma1 - DMA1 # for CS4232 PCM interface.
1423 dma2 - DMA2 # for CS4232 PCM interface.
1424 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
1426 This module supports multiple cards and ISA PnP.
1428 Module snd-sonicvibes
1429 ---------------------
1431 Module for S3 SonicVibes PCI sound cards.
1432 * PINE Schubert 32 PCI
1434 reverb - Reverb Enable - 1 = enable, 0 = disable (default)
1435 - SoundCard must have onboard SRAM for this.
1436 mge - Mic Gain Enable - 1 = enable, 0 = disable (default)
1438 This module supports multiple cards and autoprobe.
1440 Module snd-serial-u16550
1441 ------------------------
1443 Module for UART16550A serial MIDI ports.
1445 port - port # for UART16550A chip
1446 irq - IRQ # for UART16550A chip, -1 = poll mode
1447 speed - speed in bauds (9600,19200,38400,57600,115200)
1448 38400 = default
1449 base - base for divisor in bauds (57600,115200,230400,460800)
1450 115200 = default
1451 outs - number of MIDI ports in a serial port (1-4)
1452 1 = default
1453 adaptor - Type of adaptor.
1454 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1455 3 = MS-124W M/B, 4 = Generic
1457 This module supports multiple cards. This module does not support autoprobe
1458 thus the main port must be specified!!! Other options are optional.
1460 Module snd-trident
1461 ------------------
1463 Module for Trident 4DWave DX/NX sound cards.
1464 * Best Union Miss Melody 4DWave PCI
1465 * HIS 4DWave PCI
1466 * Warpspeed ONSpeed 4DWave PCI
1467 * AzTech PCI 64-Q3D
1468 * Addonics SV 750
1469 * CHIC True Sound 4Dwave
1470 * Shark Predator4D-PCI
1471 * Jaton SonicWave 4D
1473 pcm_channels - max channels (voices) reserved for PCM
1474 wavetable_size - max wavetable size in kB (4-?kb)
1476 This module supports multiple cards and autoprobe.
1478 The power-management is supported.
1480 Module snd-usb-audio
1481 --------------------
1483 Module for USB audio and USB MIDI devices.
1485 vid - Vendor ID for the device (optional)
1486 pid - Product ID for the device (optional)
1487 device_setup - Device specific magic number (optional)
1488 - Influence depends on the device
1489 - Default: 0x0000
1491 This module supports multiple devices, autoprobe and hotplugging.
1493 Module snd-usb-usx2y
1494 --------------------
1496 Module for Tascam USB US-122, US-224 and US-428 devices.
1498 This module supports multiple devices, autoprobe and hotplugging.
1500 Note: you need to load the firmware via usx2yloader utility included
1501 in alsa-tools and alsa-firmware packages.
1503 Module snd-via82xx
1504 ------------------
1506 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1507 8233A, 8233C, 8235, 8237 (south) bridge.
1509 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1510 [VIA686A/686B only]
1511 joystick - Enable joystick (default off) [VIA686A/686B only]
1512 ac97_clock - AC'97 codec clock base (default 48000Hz)
1513 dxs_support - support DXS channels,
1514 0 = auto (default), 1 = enable, 2 = disable,
1515 3 = 48k only, 4 = no VRA, 5 = enable any sample
1516 rate and different sample rates on different
1517 channels
1518 [VIA8233/C, 8235, 8237 only]
1519 ac97_quirk - AC'97 workaround for strange hardware
1520 See "AC97 Quirk Option" section below.
1522 This module supports one chip and autoprobe.
1524 Note: on some SMP motherboards like MSI 694D the interrupts might
1525 not be generated properly. In such a case, please try to
1526 set the SMP (or MPS) version on BIOS to 1.1 instead of
1527 default value 1.4. Then the interrupt number will be
1528 assigned under 15. You might also upgrade your BIOS.
1530 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1531 channels as the first PCM. On these channels, up to 4
1532 streams can be played at the same time, and the controller
1533 can perform sample rate conversion with separate rates for
1534 each channel.
1535 As default (dxs_support = 0), 48k fixed rate is chosen
1536 except for the known devices since the output is often
1537 noisy except for 48k on some mother boards due to the
1538 bug of BIOS.
1539 Please try once dxs_support=5 and if it works on other
1540 sample rates (e.g. 44.1kHz of mp3 playback), please let us
1541 know the PCI subsystem vendor/device id's (output of
1542 "lspci -nv").
1543 If dxs_support=5 does not work, try dxs_support=4; if it
1544 doesn't work too, try dxs_support=1. (dxs_support=1 is
1545 usually for old motherboards. The correct implemented
1546 board should work with 4 or 5.) If it still doesn't
1547 work and the default setting is ok, dxs_support=3 is the
1548 right choice. If the default setting doesn't work at all,
1549 try dxs_support=2 to disable the DXS channels.
1550 In any cases, please let us know the result and the
1551 subsystem vendor/device ids. See "Links and Addresses"
1552 below.
1554 Note: for the MPU401 on VIA823x, use snd-mpu401 driver
1555 additionally. The mpu_port option is for VIA686 chips only.
1557 The power-management is supported.
1559 Module snd-via82xx-modem
1560 ------------------------
1562 Module for VIA82xx AC97 modem
1564 ac97_clock - AC'97 codec clock base (default 48000Hz)
1566 This module supports one card and autoprobe.
1568 Note: The default index value of this module is -2, i.e. the first
1569 slot is excluded.
1571 The power-management is supported.
1573 Module snd-virmidi
1574 ------------------
1576 Module for virtual rawmidi devices.
1577 This module creates virtual rawmidi devices which communicate
1578 to the corresponding ALSA sequencer ports.
1580 midi_devs - MIDI devices # (1-4, default=4)
1582 This module supports multiple cards.
1584 Module snd-vx222
1585 ----------------
1587 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
1589 mic - Enable Microphone on V222 Mic (NYI)
1590 ibl - Capture IBL size. (default = 0, minimum size)
1592 This module supports multiple cards.
1594 When the driver is compiled as a module and the hotplug firmware
1595 is supported, the firmware data is loaded via hotplug automatically.
1596 Install the necessary firmware files in alsa-firmware package.
1597 When no hotplug fw loader is available, you need to load the
1598 firmware via vxloader utility in alsa-tools package. To invoke
1599 vxloader automatically, add the following to /etc/modprobe.conf
1601 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
1603 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
1604 /etc/modules.conf, instead.)
1605 IBL size defines the interrupts period for PCM. The smaller size
1606 gives smaller latency but leads to more CPU consumption, too.
1607 The size is usually aligned to 126. As default (=0), the smallest
1608 size is chosen. The possible IBL values can be found in
1609 /proc/asound/cardX/vx-status proc file.
1611 The power-management is supported.
1613 Module snd-vxpocket
1614 -------------------
1616 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
1618 ibl - Capture IBL size. (default = 0, minimum size)
1620 This module supports multiple cards. The module is compiled only when
1621 PCMCIA is supported on kernel.
1623 With the older 2.6.x kernel, to activate the driver via the card
1624 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the
1625 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no
1626 longer require a config file.
1628 When the driver is compiled as a module and the hotplug firmware
1629 is supported, the firmware data is loaded via hotplug automatically.
1630 Install the necessary firmware files in alsa-firmware package.
1631 When no hotplug fw loader is available, you need to load the
1632 firmware via vxloader utility in alsa-tools package.
1634 About capture IBL, see the description of snd-vx222 module.
1636 Note: the driver is build only when CONFIG_ISA is set.
1638 Note2: snd-vxp440 driver is merged to snd-vxpocket driver since
1639 ALSA 1.0.10.
1641 The power-management is supported.
1643 Module snd-ymfpci
1644 -----------------
1646 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
1648 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default,
1649 1 (auto-detect for YMF744/754 only)
1650 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
1651 1 (auto-detect for YMF744/754 only)
1652 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
1653 1 (auto-detect)
1654 rear_switch - enable shared rear/line-in switch (bool)
1656 This module supports autoprobe and multiple chips.
1658 The power-management is supported.
1660 Module snd-pdaudiocf
1661 --------------------
1663 Module for Sound Core PDAudioCF sound card.
1665 Note: the driver is build only when CONFIG_ISA is set.
1667 The power-management is supported.
1670 AC97 Quirk Option
1671 =================
1673 The ac97_quirk option is used to enable/override the workaround for
1674 specific devices on drivers for on-board AC'97 controllers like
1675 snd-intel8x0. Some hardware have swapped output pins between Master
1676 and Headphone, or Surround (thanks to confusion of AC'97
1677 specifications from version to version :-)
1679 The driver provides the auto-detection of known problematic devices,
1680 but some might be unknown or wrongly detected. In such a case, pass
1681 the proper value with this option.
1683 The following strings are accepted:
1684 - default Don't override the default setting
1685 - none Disable the quirk
1686 - hp_only Bind Master and Headphone controls as a single control
1687 - swap_hp Swap headphone and master controls
1688 - swap_surround Swap master and surround controls
1689 - ad_sharing For AD1985, turn on OMS bit and use headphone
1690 - alc_jack For ALC65x, turn on the jack sense mode
1691 - inv_eapd Inverted EAPD implementation
1692 - mute_led Bind EAPD bit for turning on/off mute LED
1694 For backward compatibility, the corresponding integer value -1, 0,
1695 ... are accepted, too.
1697 For example, if "Master" volume control has no effect on your device
1698 but only "Headphone" does, pass ac97_quirk=hp_only module option.
1701 Configuring Non-ISAPNP Cards
1702 ============================
1704 When the kernel is configured with ISA-PnP support, the modules
1705 supporting the isapnp cards will have module options "isapnp".
1706 If this option is set, *only* the ISA-PnP devices will be probed.
1707 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
1708 together with the proper i/o and irq configuration.
1710 When the kernel is configured without ISA-PnP support, isapnp option
1711 will be not built in.
1714 Module Autoloading Support
1715 ==========================
1717 The ALSA drivers can be loaded automatically on demand by defining
1718 module aliases. The string 'snd-card-%1' is requested for ALSA native
1719 devices where %i is sound card number from zero to seven.
1721 To auto-load an ALSA driver for OSS services, define the string
1722 'sound-slot-%i' where %i means the slot number for OSS, which
1723 corresponds to the card index of ALSA. Usually, define this
1724 as the same card module.
1726 An example configuration for a single emu10k1 card is like below:
1727 ----- /etc/modprobe.conf
1728 alias snd-card-0 snd-emu10k1
1729 alias sound-slot-0 snd-emu10k1
1730 ----- /etc/modprobe.conf
1732 The available number of auto-loaded sound cards depends on the module
1733 option "cards_limit" of snd module. As default it's set to 1.
1734 To enable the auto-loading of multiple cards, specify the number of
1735 sound cards in that option.
1737 When multiple cards are available, it'd better to specify the index
1738 number for each card via module option, too, so that the order of
1739 cards is kept consistent.
1741 An example configuration for two sound cards is like below:
1743 ----- /etc/modprobe.conf
1744 # ALSA portion
1745 options snd cards_limit=2
1746 alias snd-card-0 snd-interwave
1747 alias snd-card-1 snd-ens1371
1748 options snd-interwave index=0
1749 options snd-ens1371 index=1
1750 # OSS/Free portion
1751 alias sound-slot-0 snd-interwave
1752 alias sound-slot-1 snd-ens1371
1753 ----- /etc/moprobe.conf
1755 In this example, the interwave card is always loaded as the first card
1756 (index 0) and ens1371 as the second (index 1).
1759 ALSA PCM devices to OSS devices mapping
1760 =======================================
1762 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4
1763 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3
1764 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12
1765 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20
1766 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19
1767 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28
1768 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36
1769 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39
1770 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44
1772 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
1773 sound card number and second means device number. The ALSA devices
1774 have either 'c' or 'p' suffix indicating the direction, capture and
1775 playback, respectively.
1777 Please note that the device mapping above may be varied via the module
1778 options of snd-pcm-oss module.
1781 DEVFS support
1782 =============
1784 The ALSA driver fully supports the devfs extension.
1785 You should add lines below to your devfsd.conf file:
1787 LOOKUP snd MODLOAD ACTION snd
1788 REGISTER ^sound/.* PERMISSIONS root.audio 660
1789 REGISTER ^snd/.* PERMISSIONS root.audio 660
1791 Warning: These lines assume that you have the audio group in your system.
1792 Otherwise replace audio word with another group name (root for
1793 example).
1796 Proc interfaces (/proc/asound)
1797 ==============================
1799 /proc/asound/card#/pcm#[cp]/oss
1800 -------------------------------
1801 String "erase" - erase all additional informations about OSS applications
1802 String "<app_name> <fragments> <fragment_size> [<options>]"
1804 <app_name> - name of application with (higher priority) or without path
1805 <fragments> - number of fragments or zero if auto
1806 <fragment_size> - size of fragment in bytes or zero if auto
1807 <options> - optional parameters
1808 - disable the application tries to open a pcm device for
1809 this channel but does not want to use it.
1810 (Cause a bug or mmap needs)
1811 It's good for Quake etc...
1812 - direct don't use plugins
1813 - block force block mode (rvplayer)
1814 - non-block force non-block mode
1815 - whole-frag write only whole fragments (optimization affecting
1816 playback only)
1817 - no-silence do not fill silence ahead to avoid clicks
1818 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl
1819 instead of filled blocks
1821 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
1822 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
1823 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
1826 Early Buffer Allocation
1827 =======================
1829 Some drivers (e.g. hdsp) require the large contiguous buffers, and
1830 sometimes it's too late to find such spaces when the driver module is
1831 actually loaded due to memory fragmentation. You can pre-allocate the
1832 PCM buffers by loading snd-page-alloc module and write commands to its
1833 proc file in prior, for example, in the early boot stage like
1834 /etc/init.d/*.local scripts.
1836 Reading the proc file /proc/drivers/snd-page-alloc shows the current
1837 usage of page allocation. In writing, you can send the following
1838 commands to the snd-page-alloc driver:
1840 - add VENDOR DEVICE MASK SIZE BUFFERS
1842 VENDOR and DEVICE are PCI vendor and device IDs. They take
1843 integer numbers (0x prefix is needed for the hex).
1844 MASK is the PCI DMA mask. Pass 0 if not restricted.
1845 SIZE is the size of each buffer to allocate. You can pass
1846 k and m suffix for KB and MB. The max number is 16MB.
1847 BUFFERS is the number of buffers to allocate. It must be greater
1848 than 0. The max number is 4.
1850 - erase
1852 This will erase the all pre-allocated buffers which are not in
1853 use.
1856 Links and Addresses
1857 ===================
1859 ALSA project homepage
1860 http://www.alsa-project.org
1862 ALSA Bug Tracking System
1863 https://bugtrack.alsa-project.org/bugs/
1865 ALSA Developers ML
1866 mailto:alsa-devel@lists.sourceforge.net