| Advanced Linux Sound Architecture - Driver | |
| ========================================== | |
| Configuration guide | |
| Kernel Configuration | |
| ==================== | |
| To enable ALSA support you need at least to build the kernel with | |
| primary sound card support (CONFIG_SOUND). Since ALSA can emulate OSS, | |
| you don't have to choose any of the OSS modules. | |
| Enable "OSS API emulation" (CONFIG_SND_OSSEMUL) and both OSS mixer and | |
| PCM supports if you want to run OSS applications with ALSA. | |
| If you want to support the WaveTable functionality on cards such as | |
| SB Live! then you need to enable "Sequencer support" | |
| (CONFIG_SND_SEQUENCER). | |
| To make ALSA debug messages more verbose, enable the "Verbose printk" | |
| and "Debug" options. To check for memory leaks, turn on "Debug memory" | |
| too. "Debug detection" will add checks for the detection of cards. | |
| Please note that all the ALSA ISA drivers support the Linux isapnp API | |
| (if the card supports ISA PnP). You don't need to configure the cards | |
| using isapnptools. | |
| Creating ALSA devices | |
| ===================== | |
| This depends on your distribution, but normally you use the /dev/MAKEDEV | |
| script to create the necessary device nodes. On some systems you use a | |
| script named 'snddevices'. | |
| Module parameters | |
| ================= | |
| The user can load modules with options. If the module supports more than | |
| one card and you have more than one card of the same type then you can | |
| specify multiple values for the option separated by commas. | |
| Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. | |
| Module snd | |
| ---------- | |
| The core ALSA module. It is used by all ALSA card drivers. | |
| It takes the following options which have global effects. | |
| major - major number for sound driver | |
| - Default: 116 | |
| cards_limit | |
| - limiting card index for auto-loading (1-8) | |
| - Default: 1 | |
| - For auto-loading more than one card, specify this | |
| option together with snd-card-X aliases. | |
| Module snd-pcm-oss | |
| ------------------ | |
| The PCM OSS emulation module. | |
| This module takes options which change the mapping of devices. | |
| dsp_map - PCM device number maps assigned to the 1st OSS device. | |
| - Default: 0 | |
| adsp_map - PCM device number maps assigned to the 2st OSS device. | |
| - Default: 1 | |
| nonblock_open | |
| - Don't block opening busy PCM devices. Default: 1 | |
| For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of | |
| the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped | |
| to PCM #0 of the card #0. | |
| For changing the second or later card, specify the option with | |
| commas, such like "dsp_map=0,1". | |
| nonblock_open option is used to change the behavior of the PCM | |
| regarding opening the device. When this option is non-zero, | |
| opening a busy OSS PCM device won't be blocked but return | |
| immediately with EAGAIN (just like O_NONBLOCK flag). | |
| Module snd-rawmidi | |
| ------------------ | |
| This module takes options which change the mapping of devices. | |
| similar to those of the snd-pcm-oss module. | |
| midi_map - MIDI device number maps assigned to the 1st OSS device. | |
| - Default: 0 | |
| amidi_map - MIDI device number maps assigned to the 2st OSS device. | |
| - Default: 1 | |
| Common parameters for top sound card modules | |
| -------------------------------------------- | |
| Each of top level sound card module takes the following options. | |
| index - index (slot #) of sound card | |
| - Values: 0 through 31 or negative | |
| - If nonnegative, assign that index number | |
| - if negative, interpret as a bitmask of permissible | |
| indices; the first free permitted index is assigned | |
| - Default: -1 | |
| id - card ID (identifier or name) | |
| - Can be up to 15 characters long | |
| - Default: the card type | |
| - A directory by this name is created under /proc/asound/ | |
| containing information about the card | |
| - This ID can be used instead of the index number in | |
| identifying the card | |
| enable - enable card | |
| - Default: enabled, for PCI and ISA PnP cards | |
| Module snd-adlib | |
| ---------------- | |
| Module for AdLib FM cards. | |
| port - port # for OPL chip | |
| This module supports multiple cards. It does not support autoprobe, so | |
| the port must be specified. For actual AdLib FM cards it will be 0x388. | |
| Note that this card does not have PCM support and no mixer; only FM | |
| synthesis. | |
| Make sure you have "sbiload" from the alsa-tools package available and, | |
| after loading the module, find out the assigned ALSA sequencer port | |
| number through "sbiload -l". Example output: | |
| Port Client name Port name | |
| 64:0 OPL2 FM synth OPL2 FM Port | |
| Load the std.sb and drums.sb patches also supplied by sbiload: | |
| sbiload -p 64:0 std.sb drums.sb | |
| If you use this driver to drive an OPL3, you can use std.o3 and drums.o3 | |
| instead. To have the card produce sound, use aplaymidi from alsa-utils: | |
| aplaymidi -p 64:0 foo.mid | |
| Module snd-ad1816a | |
| ------------------ | |
| Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips. | |
| port - port # for AD1816A chip (PnP setup) | |
| mpu_port - port # for MPU-401 UART (PnP setup) | |
| fm_port - port # for OPL3 (PnP setup) | |
| irq - IRQ # for AD1816A chip (PnP setup) | |
| mpu_irq - IRQ # for MPU-401 UART (PnP setup) | |
| dma1 - first DMA # for AD1816A chip (PnP setup) | |
| dma2 - second DMA # for AD1816A chip (PnP setup) | |
| clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz) | |
| This module supports multiple cards, autoprobe and PnP. | |
| Module snd-ad1848 | |
| ----------------- | |
| Module for sound cards based on AD1848/AD1847/CS4248 ISA chips. | |
| port - port # for AD1848 chip | |
| irq - IRQ # for AD1848 chip | |
| dma1 - DMA # for AD1848 chip (0,1,3) | |
| This module supports multiple cards. It does not support autoprobe | |
| thus main port must be specified!!! Other ports are optional. | |
| The power-management is supported. | |
| Module snd-ad1889 | |
| ----------------- | |
| Module for Analog Devices AD1889 chips. | |
| ac97_quirk - AC'97 workaround for strange hardware | |
| See the description of intel8x0 module for details. | |
| This module supports multiple cards. | |
| Module snd-ali5451 | |
| ------------------ | |
| Module for ALi M5451 PCI chip. | |
| pcm_channels - Number of hardware channels assigned for PCM | |
| spdif - Support SPDIF I/O | |
| - Default: disabled | |
| This module supports one chip and autoprobe. | |
| The power-management is supported. | |
| Module snd-als100 | |
| ----------------- | |
| Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips. | |
| port - port # for ALS100 (SB16) chip (PnP setup) | |
| irq - IRQ # for ALS100 (SB16) chip (PnP setup) | |
| dma8 - 8-bit DMA # for ALS100 (SB16) chip (PnP setup) | |
| dma16 - 16-bit DMA # for ALS100 (SB16) chip (PnP setup) | |
| mpu_port - port # for MPU-401 UART (PnP setup) | |
| mpu_irq - IRQ # for MPU-401 (PnP setup) | |
| fm_port - port # for OPL3 FM (PnP setup) | |
| This module supports multiple cards, autoprobe and PnP. | |
| The power-management is supported. | |
| Module snd-als300 | |
| ----------------- | |
| Module for Avance Logic ALS300 and ALS300+ | |
| This module supports multiple cards. | |
| The power-management is supported. | |
| Module snd-als4000 | |
| ------------------ | |
| Module for sound cards based on Avance Logic ALS4000 PCI chip. | |
| joystick_port - port # for legacy joystick support. | |
| 0 = disabled (default), 1 = auto-detect | |
| This module supports multiple cards, autoprobe and PnP. | |
| The power-management is supported. | |
| Module snd-atiixp | |
| ----------------- | |
| Module for ATI IXP 150/200/250/400 AC97 controllers. | |
| ac97_clock - AC'97 clock (default = 48000) | |
| ac97_quirk - AC'97 workaround for strange hardware | |
| See "AC97 Quirk Option" section below. | |
| spdif_aclink - S/PDIF transfer over AC-link (default = 1) | |
| This module supports one card and autoprobe. | |
| ATI IXP has two different methods to control SPDIF output. One is | |
| over AC-link and another is over the "direct" SPDIF output. The | |
| implementation depends on the motherboard, and you'll need to | |
| choose the correct one via spdif_aclink module option. | |
| The power-management is supported. | |
| Module snd-atiixp-modem | |
| ----------------------- | |
| Module for ATI IXP 150/200/250 AC97 modem controllers. | |
| This module supports one card and autoprobe. | |
| Note: The default index value of this module is -2, i.e. the first | |
| slot is excluded. | |
| The power-management is supported. | |
| Module snd-au8810, snd-au8820, snd-au8830 | |
| ----------------------------------------- | |
| Module for Aureal Vortex, Vortex2 and Advantage device. | |
| pcifix - Control PCI workarounds | |
| 0 = Disable all workarounds | |
| 1 = Force the PCI latency of the Aureal card to 0xff | |
| 2 = Force the Extend PCI#2 Internal Master for Efficient | |
| Handling of Dummy Requests on the VIA KT133 AGP Bridge | |
| 3 = Force both settings | |
| 255 = Autodetect what is required (default) | |
| This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware | |
| EQ, mpu401, gameport. A3D and wavetable support are still in development. | |
| Development and reverse engineering work is being coordinated at | |
| http://savannah.nongnu.org/projects/openvortex/ | |
| SPDIF output has a copy of the AC97 codec output, unless you use the | |
| "spdif" pcm device, which allows raw data passthru. | |
| The hardware EQ hardware and SPDIF is only present in the Vortex2 and | |
| Advantage. | |
| Note: Some ALSA mixer applications don't handle the SPDIF sample rate | |
| control correctly. If you have problems regarding this, try | |
| another ALSA compliant mixer (alsamixer works). | |
| Module snd-azt2320 | |
| ------------------ | |
| Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only). | |
| port - port # for AZT2320 chip (PnP setup) | |
| wss_port - port # for WSS (PnP setup) | |
| mpu_port - port # for MPU-401 UART (PnP setup) | |
| fm_port - FM port # for AZT2320 chip (PnP setup) | |
| irq - IRQ # for AZT2320 (WSS) chip (PnP setup) | |
| mpu_irq - IRQ # for MPU-401 UART (PnP setup) | |
| dma1 - 1st DMA # for AZT2320 (WSS) chip (PnP setup) | |
| dma2 - 2nd DMA # for AZT2320 (WSS) chip (PnP setup) | |
| This module supports multiple cards, PnP and autoprobe. | |
| The power-management is supported. | |
| Module snd-azt3328 | |
| ------------------ | |
| Module for sound cards based on Aztech AZF3328 PCI chip. | |
| joystick - Enable joystick (default off) | |
| This module supports multiple cards. | |
| Module snd-bt87x | |
| ---------------- | |
| Module for video cards based on Bt87x chips. | |
| digital_rate - Override the default digital rate (Hz) | |
| load_all - Load the driver even if the card model isn't known | |
| This module supports multiple cards. | |
| Note: The default index value of this module is -2, i.e. the first | |
| slot is excluded. | |
| Module snd-ca0106 | |
| ----------------- | |
| Module for Creative Audigy LS and SB Live 24bit | |
| This module supports multiple cards. | |
| Module snd-cmi8330 | |
| ------------------ | |
| Module for sound cards based on C-Media CMI8330 ISA chips. | |
| wssport - port # for CMI8330 chip (WSS) | |
| wssirq - IRQ # for CMI8330 chip (WSS) | |
| wssdma - first DMA # for CMI8330 chip (WSS) | |
| sbport - port # for CMI8330 chip (SB16) | |
| sbirq - IRQ # for CMI8330 chip (SB16) | |
| sbdma8 - 8bit DMA # for CMI8330 chip (SB16) | |
| sbdma16 - 16bit DMA # for CMI8330 chip (SB16) | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-cmipci | |
| ----------------- | |
| Module for C-Media CMI8338 and 8738 PCI sound cards. | |
| mpu_port - 0x300,0x310,0x320,0x330 = legacy port, | |
| 1 = integrated PCI port, | |
| 0 = disable (default) | |
| fm_port - 0x388 (default), 0 = disable (default) | |
| soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only) | |
| (default = 1) | |
| joystick_port - Joystick port address (0 = disable, 1 = auto-detect) | |
| This module supports autoprobe and multiple cards. | |
| The power-management is supported. | |
| Module snd-cs4231 | |
| ----------------- | |
| Module for sound cards based on CS4231 ISA chips. | |
| port - port # for CS4231 chip | |
| mpu_port - port # for MPU-401 UART (optional), -1 = disable | |
| irq - IRQ # for CS4231 chip | |
| mpu_irq - IRQ # for MPU-401 UART | |
| dma1 - first DMA # for CS4231 chip | |
| dma2 - second DMA # for CS4231 chip | |
| This module supports multiple cards. This module does not support autoprobe | |
| thus main port must be specified!!! Other ports are optional. | |
| The power-management is supported. | |
| Module snd-cs4232 | |
| ----------------- | |
| Module for sound cards based on CS4232/CS4232A ISA chips. | |
| port - port # for CS4232 chip (PnP setup - 0x534) | |
| cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00) | |
| mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable | |
| fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable | |
| irq - IRQ # for CS4232 chip (5,7,9,11,12,15) | |
| mpu_irq - IRQ # for MPU-401 UART (9,11,12,15) | |
| dma1 - first DMA # for CS4232 chip (0,1,3) | |
| dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable | |
| isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) | |
| This module supports multiple cards. This module does not support autoprobe | |
| thus main port must be specified!!! Other ports are optional. | |
| The power-management is supported. | |
| Module snd-cs4236 | |
| ----------------- | |
| Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/ | |
| CS4238B/CS4239 ISA chips. | |
| port - port # for CS4236 chip (PnP setup - 0x534) | |
| cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00) | |
| mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable | |
| fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable | |
| irq - IRQ # for CS4236 chip (5,7,9,11,12,15) | |
| mpu_irq - IRQ # for MPU-401 UART (9,11,12,15) | |
| dma1 - first DMA # for CS4236 chip (0,1,3) | |
| dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable | |
| isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) | |
| This module supports multiple cards. This module does not support autoprobe | |
| (if ISA PnP is not used) thus main port and control port must be | |
| specified!!! Other ports are optional. | |
| The power-management is supported. | |
| Module snd-cs4281 | |
| ----------------- | |
| Module for Cirrus Logic CS4281 soundchip. | |
| dual_codec - Secondary codec ID (0 = disable, default) | |
| This module supports multiple cards. | |
| The power-management is supported. | |
| Module snd-cs46xx | |
| ----------------- | |
| Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/ | |
| CS4624/CS4630/CS4280 PCI chips. | |
| external_amp - Force to enable external amplifier. | |
| thinkpad - Force to enable Thinkpad's CLKRUN control. | |
| mmap_valid - Support OSS mmap mode (default = 0). | |
| This module supports multiple cards and autoprobe. | |
| Usually external amp and CLKRUN controls are detected automatically | |
| from PCI sub vendor/device ids. If they don't work, give the options | |
| above explicitly. | |
| The power-management is supported. | |
| Module snd-cs5535audio | |
| ---------------------- | |
| Module for multifunction CS5535 companion PCI device | |
| The power-management is supported. | |
| Module snd-darla20 | |
| ------------------ | |
| Module for Echoaudio Darla20 | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-darla24 | |
| ------------------ | |
| Module for Echoaudio Darla24 | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-dt019x | |
| ----------------- | |
| Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP | |
| only) | |
| port - Port # (PnP setup) | |
| mpu_port - Port # for MPU-401 (PnP setup) | |
| fm_port - Port # for FM OPL-3 (PnP setup) | |
| irq - IRQ # (PnP setup) | |
| mpu_irq - IRQ # for MPU-401 (PnP setup) | |
| dma8 - DMA # (PnP setup) | |
| This module supports multiple cards. This module is enabled only with | |
| ISA PnP support. | |
| The power-management is supported. | |
| Module snd-dummy | |
| ---------------- | |
| Module for the dummy sound card. This "card" doesn't do any output | |
| or input, but you may use this module for any application which | |
| requires a sound card (like RealPlayer). | |
| The power-management is supported. | |
| Module snd-echo3g | |
| ----------------- | |
| Module for Echoaudio 3G cards (Gina3G/Layla3G) | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-emu10k1 | |
| ------------------ | |
| Module for EMU10K1/EMU10k2 based PCI sound cards. | |
| * Sound Blaster Live! | |
| * Sound Blaster PCI 512 | |
| * Emu APS (partially supported) | |
| * Sound Blaster Audigy | |
| extin - bitmap of available external inputs for FX8010 (see bellow) | |
| extout - bitmap of available external outputs for FX8010 (see bellow) | |
| seq_ports - allocated sequencer ports (4 by default) | |
| max_synth_voices - limit of voices used for wavetable (64 by default) | |
| max_buffer_size - specifies the maximum size of wavetable/pcm buffers | |
| given in MB unit. Default value is 128. | |
| enable_ir - enable IR | |
| This module supports multiple cards and autoprobe. | |
| Input & Output configurations [extin/extout] | |
| * Creative Card wo/Digital out [0x0003/0x1f03] | |
| * Creative Card w/Digital out [0x0003/0x1f0f] | |
| * Creative Card w/Digital CD in [0x000f/0x1f0f] | |
| * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3] | |
| * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf] | |
| * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf] | |
| * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f] | |
| * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f] | |
| * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f] | |
| * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff] | |
| * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff] | |
| * Creative Card all ins and outs [0x3fff/0x7fff] | |
| The power-management is supported. | |
| Module snd-emu10k1x | |
| ------------------- | |
| Module for Creative Emu10k1X (SB Live Dell OEM version) | |
| This module supports multiple cards. | |
| Module snd-ens1370 | |
| ------------------ | |
| Module for Ensoniq AudioPCI ES1370 PCI sound cards. | |
| * SoundBlaster PCI 64 | |
| * SoundBlaster PCI 128 | |
| joystick - Enable joystick (default off) | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-ens1371 | |
| ------------------ | |
| Module for Ensoniq AudioPCI ES1371 PCI sound cards. | |
| * SoundBlaster PCI 64 | |
| * SoundBlaster PCI 128 | |
| * SoundBlaster Vibra PCI | |
| joystick_port - port # for joystick (0x200,0x208,0x210,0x218), | |
| 0 = disable (default), 1 = auto-detect | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-es968 | |
| ---------------- | |
| Module for sound cards based on ESS ES968 chip (PnP only). | |
| port - port # for ES968 (SB8) chip (PnP setup) | |
| irq - IRQ # for ES968 (SB8) chip (PnP setup) | |
| dma1 - DMA # for ES968 (SB8) chip (PnP setup) | |
| This module supports multiple cards, PnP and autoprobe. | |
| The power-management is supported. | |
| Module snd-es1688 | |
| ----------------- | |
| Module for ESS AudioDrive ES-1688 and ES-688 sound cards. | |
| port - port # for ES-1688 chip (0x220,0x240,0x260) | |
| mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default) | |
| irq - IRQ # for ES-1688 chip (5,7,9,10) | |
| mpu_irq - IRQ # for MPU-401 port (5,7,9,10) | |
| dma8 - DMA # for ES-1688 chip (0,1,3) | |
| This module supports multiple cards and autoprobe (without MPU-401 port). | |
| Module snd-es18xx | |
| ----------------- | |
| Module for ESS AudioDrive ES-18xx sound cards. | |
| port - port # for ES-18xx chip (0x220,0x240,0x260) | |
| mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default) | |
| fm_port - port # for FM (optional, not used) | |
| irq - IRQ # for ES-18xx chip (5,7,9,10) | |
| dma1 - first DMA # for ES-18xx chip (0,1,3) | |
| dma2 - first DMA # for ES-18xx chip (0,1,3) | |
| isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) | |
| This module supports multiple cards, ISA PnP and autoprobe (without MPU-401 | |
| port if native ISA PnP routines are not used). | |
| When dma2 is equal with dma1, the driver works as half-duplex. | |
| The power-management is supported. | |
| Module snd-es1938 | |
| ----------------- | |
| Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips. | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-es1968 | |
| ----------------- | |
| Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips. | |
| total_bufsize - total buffer size in kB (1-4096kB) | |
| pcm_substreams_p - playback channels (1-8, default=2) | |
| pcm_substreams_c - capture channels (1-8, default=0) | |
| clock - clock (0 = auto-detection) | |
| use_pm - support the power-management (0 = off, 1 = on, | |
| 2 = auto (default)) | |
| enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default)) | |
| joystick - enable joystick (default off) | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-fm801 | |
| ---------------- | |
| Module for ForteMedia FM801 based PCI sound cards. | |
| tea575x_tuner - Enable TEA575x tuner | |
| - 1 = MediaForte 256-PCS | |
| - 2 = MediaForte 256-PCPR | |
| - 3 = MediaForte 64-PCR | |
| - High 16-bits are video (radio) device number + 1 | |
| - example: 0x10002 (MediaForte 256-PCPR, device 1) | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-gina20 | |
| ----------------- | |
| Module for Echoaudio Gina20 | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-gina24 | |
| ----------------- | |
| Module for Echoaudio Gina24 | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-gusclassic | |
| --------------------- | |
| Module for Gravis UltraSound Classic sound card. | |
| port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260) | |
| irq - IRQ # for GF1 chip (3,5,9,11,12,15) | |
| dma1 - DMA # for GF1 chip (1,3,5,6,7) | |
| dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable) | |
| joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) | |
| voices - GF1 voices limit (14-32) | |
| pcm_voices - reserved PCM voices | |
| This module supports multiple cards and autoprobe. | |
| Module snd-gusextreme | |
| --------------------- | |
| Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card. | |
| port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260) | |
| gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270) | |
| mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable | |
| irq - IRQ # for ES-1688 chip (5,7,9,10) | |
| gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15) | |
| mpu_irq - IRQ # for MPU-401 port (5,7,9,10) | |
| dma8 - DMA # for ES-1688 chip (0,1,3) | |
| dma1 - DMA # for GF1 chip (1,3,5,6,7) | |
| joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) | |
| voices - GF1 voices limit (14-32) | |
| pcm_voices - reserved PCM voices | |
| This module supports multiple cards and autoprobe (without MPU-401 port). | |
| Module snd-gusmax | |
| ----------------- | |
| Module for Gravis UltraSound MAX sound card. | |
| port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260) | |
| irq - IRQ # for GF1 chip (3,5,9,11,12,15) | |
| dma1 - DMA # for GF1 chip (1,3,5,6,7) | |
| dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable) | |
| joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) | |
| voices - GF1 voices limit (14-32) | |
| pcm_voices - reserved PCM voices | |
| This module supports multiple cards and autoprobe. | |
| Module snd-hda-intel | |
| -------------------- | |
| Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8), | |
| ATI SB450, SB600, RS600, | |
| VIA VT8251/VT8237A, | |
| SIS966, ULI M5461 | |
| model - force the model name | |
| position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size) | |
| single_cmd - Use single immediate commands to communicate with | |
| codecs (for debugging only) | |
| enable_msi - Enable Message Signaled Interrupt (MSI) (default = off) | |
| This module supports one card and autoprobe. | |
| Each codec may have a model table for different configurations. | |
| If your machine isn't listed there, the default (usually minimal) | |
| configuration is set up. You can pass "model=<name>" option to | |
| specify a certain model in such a case. There are different | |
| models depending on the codec chip. | |
| Model name Description | |
| ---------- ----------- | |
| ALC880 | |
| 3stack 3-jack in back and a headphone out | |
| 3stack-digout 3-jack in back, a HP out and a SPDIF out | |
| 5stack 5-jack in back, 2-jack in front | |
| 5stack-digout 5-jack in back, 2-jack in front, a SPDIF out | |
| 6stack 6-jack in back, 2-jack in front | |
| 6stack-digout 6-jack with a SPDIF out | |
| w810 3-jack | |
| z71v 3-jack (HP shared SPDIF) | |
| asus 3-jack (ASUS Mobo) | |
| asus-w1v ASUS W1V | |
| asus-dig ASUS with SPDIF out | |
| asus-dig2 ASUS with SPDIF out (using GPIO2) | |
| uniwill 3-jack | |
| F1734 2-jack | |
| lg LG laptop (m1 express dual) | |
| lg-lw LG LW20/LW25 laptop | |
| tcl TCL S700 | |
| clevo Clevo laptops (m520G, m665n) | |
| test for testing/debugging purpose, almost all controls can be | |
| adjusted. Appearing only when compiled with | |
| $CONFIG_SND_DEBUG=y | |
| auto auto-config reading BIOS (default) | |
| ALC260 | |
| hp HP machines | |
| hp-3013 HP machines (3013-variant) | |
| fujitsu Fujitsu S7020 | |
| acer Acer TravelMate | |
| basic fixed pin assignment (old default model) | |
| auto auto-config reading BIOS (default) | |
| ALC262 | |
| fujitsu Fujitsu Laptop | |
| hp-bpc HP xw4400/6400/8400/9400 laptops | |
| benq Benq ED8 | |
| basic fixed pin assignment w/o SPDIF | |
| auto auto-config reading BIOS (default) | |
| ALC882/885 | |
| 3stack-dig 3-jack with SPDIF I/O | |
| 6stck-dig 6-jack digital with SPDIF I/O | |
| arima Arima W820Di1 | |
| auto auto-config reading BIOS (default) | |
| ALC883/888 | |
| 3stack-dig 3-jack with SPDIF I/O | |
| 6stack-dig 6-jack digital with SPDIF I/O | |
| 3stack-6ch 3-jack 6-channel | |
| 3stack-6ch-dig 3-jack 6-channel with SPDIF I/O | |
| 6stack-dig-demo 6-jack digital for Intel demo board | |
| acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc) | |
| auto auto-config reading BIOS (default) | |
| ALC861/660 | |
| 3stack 3-jack | |
| 3stack-dig 3-jack with SPDIF I/O | |
| 6stack-dig 6-jack with SPDIF I/O | |
| 3stack-660 3-jack (for ALC660) | |
| uniwill-m31 Uniwill M31 laptop | |
| auto auto-config reading BIOS (default) | |
| CMI9880 | |
| minimal 3-jack in back | |
| min_fp 3-jack in back, 2-jack in front | |
| full 6-jack in back, 2-jack in front | |
| full_dig 6-jack in back, 2-jack in front, SPDIF I/O | |
| allout 5-jack in back, 2-jack in front, SPDIF out | |
| auto auto-config reading BIOS (default) | |
| AD1981 | |
| basic 3-jack (default) | |
| hp HP nx6320 | |
| thinkpad Lenovo Thinkpad T60/X60/Z60 | |
| AD1986A | |
| 6stack 6-jack, separate surrounds (default) | |
| 3stack 3-stack, shared surrounds | |
| laptop 2-channel only (FSC V2060, Samsung M50) | |
| laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J) | |
| AD1988 | |
| 6stack 6-jack | |
| 6stack-dig ditto with SPDIF | |
| 3stack 3-jack | |
| 3stack-dig ditto with SPDIF | |
| laptop 3-jack with hp-jack automute | |
| laptop-dig ditto with SPDIF | |
| auto auto-config reading BIOS (default) | |
| STAC9200/9205/9220/9221/9254 | |
| ref Reference board | |
| 3stack D945 3stack | |
| 5stack D945 5stack + SPDIF | |
| STAC9227/9228/9229/927x | |
| ref Reference board | |
| 3stack D965 3stack | |
| 5stack D965 5stack + SPDIF | |
| STAC9872 | |
| vaio Setup for VAIO FE550G/SZ110 | |
| vaio-ar Setup for VAIO AR | |
| If the default configuration doesn't work and one of the above | |
| matches with your device, report it together with the PCI | |
| subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel | |
| ML (see the section "Links and Addresses"). | |
| Note 2: If you get click noises on output, try the module option | |
| position_fix=1 or 2. position_fix=1 will use the SD_LPIB | |
| register value without FIFO size correction as the current | |
| DMA pointer. position_fix=2 will make the driver to use | |
| the position buffer instead of reading SD_LPIB register. | |
| (Usually SD_LPLIB register is more accurate than the | |
| position buffer.) | |
| NB: If you get many "azx_get_response timeout" messages at | |
| loading, it's likely a problem of interrupts (e.g. ACPI irq | |
| routing). Try to boot with options like "pci=noacpi". Also, you | |
| can try "single_cmd=1" module option. This will switch the | |
| communication method between HDA controller and codecs to the | |
| single immediate commands instead of CORB/RIRB. Basically, the | |
| single command mode is provided only for BIOS, and you won't get | |
| unsolicited events, too. But, at least, this works independently | |
| from the irq. Remember this is a last resort, and should be | |
| avoided as much as possible... | |
| The power-management is supported. | |
| Module snd-hdsp | |
| --------------- | |
| Module for RME Hammerfall DSP audio interface(s) | |
| This module supports multiple cards. | |
| Note: The firmware data can be automatically loaded via hotplug | |
| when CONFIG_FW_LOADER is set. Otherwise, you need to load | |
| the firmware via hdsploader utility included in alsa-tools | |
| package. | |
| The firmware data is found in alsa-firmware package. | |
| Note: snd-page-alloc module does the job which snd-hammerfall-mem | |
| module did formerly. It will allocate the buffers in advance | |
| when any HDSP cards are found. To make the buffer | |
| allocation sure, load snd-page-alloc module in the early | |
| stage of boot sequence. See "Early Buffer Allocation" | |
| section. | |
| Module snd-hdspm | |
| ---------------- | |
| Module for RME HDSP MADI board. | |
| precise_ptr - Enable precise pointer, or disable. | |
| line_outs_monitor - Send playback streams to analog outs by default. | |
| enable_monitor - Enable Analog Out on Channel 63/64 by default. | |
| See hdspm.txt for details. | |
| Module snd-ice1712 | |
| ------------------ | |
| Module for Envy24 (ICE1712) based PCI sound cards. | |
| * MidiMan M Audio Delta 1010 | |
| * MidiMan M Audio Delta 1010LT | |
| * MidiMan M Audio Delta DiO 2496 | |
| * MidiMan M Audio Delta 66 | |
| * MidiMan M Audio Delta 44 | |
| * MidiMan M Audio Delta 410 | |
| * MidiMan M Audio Audiophile 2496 | |
| * TerraTec EWS 88MT | |
| * TerraTec EWS 88D | |
| * TerraTec EWX 24/96 | |
| * TerraTec DMX 6Fire | |
| * TerraTec Phase 88 | |
| * Hoontech SoundTrack DSP 24 | |
| * Hoontech SoundTrack DSP 24 Value | |
| * Hoontech SoundTrack DSP 24 Media 7.1 | |
| * Event Electronics, EZ8 | |
| * Digigram VX442 | |
| * Lionstracs, Mediastaton | |
| model - Use the given board model, one of the following: | |
| delta1010, dio2496, delta66, delta44, audiophile, delta410, | |
| delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d, | |
| dmx6fire, dsp24, dsp24_value, dsp24_71, ez8, | |
| phase88, mediastation | |
| omni - Omni I/O support for MidiMan M-Audio Delta44/66 | |
| cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver) | |
| in msec resolution, default value is 500 (0.5 sec) | |
| This module supports multiple cards and autoprobe. Note: The consumer part | |
| is not used with all Envy24 based cards (for example in the MidiMan Delta | |
| serie). | |
| Note: The supported board is detected by reading EEPROM or PCI | |
| SSID (if EEPROM isn't available). You can override the | |
| model by passing "model" module option in case that the | |
| driver isn't configured properly or you want to try another | |
| type for testing. | |
| Module snd-ice1724 | |
| ------------------ | |
| Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards. | |
| * MidiMan M Audio Revolution 5.1 | |
| * MidiMan M Audio Revolution 7.1 | |
| * AMP Ltd AUDIO2000 | |
| * TerraTec Aureon 5.1 Sky | |
| * TerraTec Aureon 7.1 Space | |
| * TerraTec Aureon 7.1 Universe | |
| * TerraTec Phase 22 | |
| * TerraTec Phase 28 | |
| * AudioTrak Prodigy 7.1 | |
| * AudioTrak Prodigy 7.1LT | |
| * AudioTrak Prodigy 192 | |
| * Pontis MS300 | |
| * Albatron K8X800 Pro II | |
| * Chaintech ZNF3-150 | |
| * Chaintech ZNF3-250 | |
| * Chaintech 9CJS | |
| * Chaintech AV-710 | |
| * Shuttle SN25P | |
| model - Use the given board model, one of the following: | |
| revo51, revo71, amp2000, prodigy71, prodigy71lt, | |
| prodigy192, aureon51, aureon71, universe, | |
| k8x800, phase22, phase28, ms300, av710 | |
| This module supports multiple cards and autoprobe. | |
| Note: The supported board is detected by reading EEPROM or PCI | |
| SSID (if EEPROM isn't available). You can override the | |
| model by passing "model" module option in case that the | |
| driver isn't configured properly or you want to try another | |
| type for testing. | |
| Module snd-indigo | |
| ----------------- | |
| Module for Echoaudio Indigo | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-indigodj | |
| ------------------- | |
| Module for Echoaudio Indigo DJ | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-indigoio | |
| ------------------- | |
| Module for Echoaudio Indigo IO | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-intel8x0 | |
| ------------------- | |
| Module for AC'97 motherboards from Intel and compatibles. | |
| * Intel i810/810E, i815, i820, i830, i84x, MX440 | |
| ICH5, ICH6, ICH7, ESB2 | |
| * SiS 7012 (SiS 735) | |
| * NVidia NForce, NForce2, NForce3, MCP04, CK804 | |
| CK8, CK8S, MCP501 | |
| * AMD AMD768, AMD8111 | |
| * ALi m5455 | |
| ac97_clock - AC'97 codec clock base (0 = auto-detect) | |
| ac97_quirk - AC'97 workaround for strange hardware | |
| See "AC97 Quirk Option" section below. | |
| buggy_irq - Enable workaround for buggy interrupts on some | |
| motherboards (default yes on nForce chips, | |
| otherwise off) | |
| buggy_semaphore - Enable workaround for hardwares with buggy | |
| semaphores (e.g. on some ASUS laptops) | |
| (default off) | |
| This module supports one chip and autoprobe. | |
| Note: the latest driver supports auto-detection of chip clock. | |
| if you still encounter too fast playback, specify the clock | |
| explicitly via the module option "ac97_clock=41194". | |
| Joystick/MIDI ports are not supported by this driver. If your | |
| motherboard has these devices, use the ns558 or snd-mpu401 | |
| modules, respectively. | |
| The power-management is supported. | |
| Module snd-intel8x0m | |
| -------------------- | |
| Module for Intel ICH (i8x0) chipset MC97 modems. | |
| * Intel i810/810E, i815, i820, i830, i84x, MX440 | |
| ICH5, ICH6, ICH7 | |
| * SiS 7013 (SiS 735) | |
| * NVidia NForce, NForce2, NForce2s, NForce3 | |
| * AMD AMD8111 | |
| * ALi m5455 | |
| ac97_clock - AC'97 codec clock base (0 = auto-detect) | |
| This module supports one card and autoprobe. | |
| Note: The default index value of this module is -2, i.e. the first | |
| slot is excluded. | |
| The power-management is supported. | |
| Module snd-interwave | |
| -------------------- | |
| Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32 | |
| and other sound cards based on AMD InterWave (tm) chip. | |
| port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260) | |
| irq - IRQ # for InterWave chip (3,5,9,11,12,15) | |
| dma1 - DMA # for InterWave chip (0,1,3,5,6,7) | |
| dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable) | |
| joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) | |
| midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default) | |
| pcm_voices - reserved PCM voices for the synthesizer (default 2) | |
| effect - 1 = InterWave effects enable (default 0); | |
| requires 8 voices | |
| This module supports multiple cards, autoprobe and ISA PnP. | |
| Module snd-interwave-stb | |
| ------------------------ | |
| Module for UltraSound 32-Pro (sound card from STB used by Compaq) | |
| and other sound cards based on AMD InterWave (tm) chip with TEA6330T | |
| circuit for extended control of bass, treble and master volume. | |
| port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260) | |
| port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380) | |
| irq - IRQ # for InterWave chip (3,5,9,11,12,15) | |
| dma1 - DMA # for InterWave chip (0,1,3,5,6,7) | |
| dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable) | |
| joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) | |
| midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default) | |
| pcm_voices - reserved PCM voices for the synthesizer (default 2) | |
| effect - 1 = InterWave effects enable (default 0); | |
| requires 8 voices | |
| This module supports multiple cards, autoprobe and ISA PnP. | |
| Module snd-korg1212 | |
| ------------------- | |
| Module for Korg 1212 IO PCI card | |
| This module supports multiple cards. | |
| Module snd-layla20 | |
| ------------------ | |
| Module for Echoaudio Layla20 | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-layla24 | |
| ------------------ | |
| Module for Echoaudio Layla24 | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-maestro3 | |
| ------------------- | |
| Module for Allegro/Maestro3 chips | |
| external_amp - enable external amp (enabled by default) | |
| amp_gpio - GPIO pin number for external amp (0-15) or | |
| -1 for default pin (8 for allegro, 1 for | |
| others) | |
| This module supports autoprobe and multiple chips. | |
| Note: the binding of amplifier is dependent on hardware. | |
| If there is no sound even though all channels are unmuted, try to | |
| specify other gpio connection via amp_gpio option. | |
| For example, a Panasonic notebook might need "amp_gpio=0x0d" | |
| option. | |
| The power-management is supported. | |
| Module snd-mia | |
| --------------- | |
| Module for Echoaudio Mia | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-miro | |
| --------------- | |
| Module for Miro soundcards: miroSOUND PCM 1 pro, | |
| miroSOUND PCM 12, | |
| miroSOUND PCM 20 Radio. | |
| port - Port # (0x530,0x604,0xe80,0xf40) | |
| irq - IRQ # (5,7,9,10,11) | |
| dma1 - 1st dma # (0,1,3) | |
| dma2 - 2nd dma # (0,1) | |
| mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330) | |
| mpu_irq - MPU-401 irq # (5,7,9,10) | |
| fm_port - FM Port # (0x388) | |
| wss - enable WSS mode | |
| ide - enable onboard ide support | |
| Module snd-mixart | |
| ----------------- | |
| Module for Digigram miXart8 sound cards. | |
| This module supports multiple cards. | |
| Note: One miXart8 board will be represented as 4 alsa cards. | |
| See MIXART.txt for details. | |
| When the driver is compiled as a module and the hotplug firmware | |
| is supported, the firmware data is loaded via hotplug automatically. | |
| Install the necessary firmware files in alsa-firmware package. | |
| When no hotplug fw loader is available, you need to load the | |
| firmware via mixartloader utility in alsa-tools package. | |
| Module snd-mona | |
| --------------- | |
| Module for Echoaudio Mona | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| Module snd-mpu401 | |
| ----------------- | |
| Module for MPU-401 UART devices. | |
| port - port number or -1 (disable) | |
| irq - IRQ number or -1 (disable) | |
| pnp - PnP detection - 0 = disable, 1 = enable (default) | |
| This module supports multiple devices and PnP. | |
| Module snd-mtpav | |
| ---------------- | |
| Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel | |
| port). | |
| port - I/O port # for MTPAV (0x378,0x278, default=0x378) | |
| irq - IRQ # for MTPAV (7,5, default=7) | |
| hwports - number of supported hardware ports, default=8. | |
| Module supports only 1 card. This module has no enable option. | |
| Module snd-mts64 | |
| ---------------- | |
| Module for Ego Systems (ESI) Miditerminal 4140 | |
| This module supports multiple devices. | |
| Requires parport (CONFIG_PARPORT). | |
| Module snd-nm256 | |
| ---------------- | |
| Module for NeoMagic NM256AV/ZX chips | |
| playback_bufsize - max playback frame size in kB (4-128kB) | |
| capture_bufsize - max capture frame size in kB (4-128kB) | |
| force_ac97 - 0 or 1 (disabled by default) | |
| buffer_top - specify buffer top address | |
| use_cache - 0 or 1 (disabled by default) | |
| vaio_hack - alias buffer_top=0x25a800 | |
| reset_workaround - enable AC97 RESET workaround for some laptops | |
| reset_workaround2 - enable extended AC97 RESET workaround for some | |
| other laptops | |
| This module supports one chip and autoprobe. | |
| The power-management is supported. | |
| Note: on some notebooks the buffer address cannot be detected | |
| automatically, or causes hang-up during initialization. | |
| In such a case, specify the buffer top address explicitly via | |
| the buffer_top option. | |
| For example, | |
| Sony F250: buffer_top=0x25a800 | |
| Sony F270: buffer_top=0x272800 | |
| The driver supports only ac97 codec. It's possible to force | |
| to initialize/use ac97 although it's not detected. In such a | |
| case, use force_ac97=1 option - but *NO* guarantee whether it | |
| works! | |
| Note: The NM256 chip can be linked internally with non-AC97 | |
| codecs. This driver supports only the AC97 codec, and won't work | |
| with machines with other (most likely CS423x or OPL3SAx) chips, | |
| even though the device is detected in lspci. In such a case, try | |
| other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP | |
| but some doesn't have ISA PnP. You'll need to specify isapnp=0 | |
| and proper hardware parameters in the case without ISA PnP. | |
| Note: some laptops need a workaround for AC97 RESET. For the | |
| known hardware like Dell Latitude LS and Sony PCG-F305, this | |
| workaround is enabled automatically. For other laptops with a | |
| hard freeze, you can try reset_workaround=1 option. | |
| Note: Dell Latitude CSx laptops have another problem regarding | |
| AC97 RESET. On these laptops, reset_workaround2 option is | |
| turned on as default. This option is worth to try if the | |
| previous reset_workaround option doesn't help. | |
| Note: This driver is really crappy. It's a porting from the | |
| OSS driver, which is a result of black-magic reverse engineering. | |
| The detection of codec will fail if the driver is loaded *after* | |
| X-server as described above. You might be able to force to load | |
| the module, but it may result in hang-up. Hence, make sure that | |
| you load this module *before* X if you encounter this kind of | |
| problem. | |
| Module snd-opl3sa2 | |
| ------------------ | |
| Module for Yamaha OPL3-SA2/SA3 sound cards. | |
| port - control port # for OPL3-SA chip (0x370) | |
| sb_port - SB port # for OPL3-SA chip (0x220,0x240) | |
| wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604) | |
| midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable | |
| fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable | |
| irq - IRQ # for OPL3-SA chip (5,7,9,10) | |
| dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3) | |
| dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable | |
| isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) | |
| This module supports multiple cards and ISA PnP. It does not support | |
| autoprobe (if ISA PnP is not used) thus all ports must be specified!!! | |
| The power-management is supported. | |
| Module snd-opti92x-ad1848 | |
| ------------------------- | |
| Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips. | |
| Module works with OAK Mozart cards as well. | |
| port - port # for WSS chip (0x530,0xe80,0xf40,0x604) | |
| mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330) | |
| fm_port - port # for OPL3 device (0x388) | |
| irq - IRQ # for WSS chip (5,7,9,10,11) | |
| mpu_irq - IRQ # for MPU-401 UART (5,7,9,10) | |
| dma1 - first DMA # for WSS chip (0,1,3) | |
| This module supports only one card, autoprobe and PnP. | |
| Module snd-opti92x-cs4231 | |
| ------------------------- | |
| Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips. | |
| port - port # for WSS chip (0x530,0xe80,0xf40,0x604) | |
| mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330) | |
| fm_port - port # for OPL3 device (0x388) | |
| irq - IRQ # for WSS chip (5,7,9,10,11) | |
| mpu_irq - IRQ # for MPU-401 UART (5,7,9,10) | |
| dma1 - first DMA # for WSS chip (0,1,3) | |
| dma2 - second DMA # for WSS chip (0,1,3) | |
| This module supports only one card, autoprobe and PnP. | |
| Module snd-opti93x | |
| ------------------ | |
| Module for sound cards based on OPTi 82c93x chips. | |
| port - port # for WSS chip (0x530,0xe80,0xf40,0x604) | |
| mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330) | |
| fm_port - port # for OPL3 device (0x388) | |
| irq - IRQ # for WSS chip (5,7,9,10,11) | |
| mpu_irq - IRQ # for MPU-401 UART (5,7,9,10) | |
| dma1 - first DMA # for WSS chip (0,1,3) | |
| dma2 - second DMA # for WSS chip (0,1,3) | |
| This module supports only one card, autoprobe and PnP. | |
| Module snd-pcxhr | |
| ---------------- | |
| Module for Digigram PCXHR boards | |
| This module supports multiple cards. | |
| Module snd-powermac (on ppc only) | |
| --------------------------------- | |
| Module for PowerMac, iMac and iBook on-board soundchips | |
| enable_beep - enable beep using PCM (enabled as default) | |
| Module supports autoprobe a chip. | |
| Note: the driver may have problems regarding endianess. | |
| The power-management is supported. | |
| Module snd-pxa2xx-ac97 (on arm only) | |
| ------------------------------------ | |
| Module for AC97 driver for the Intel PXA2xx chip | |
| For ARM architecture only. | |
| The power-management is supported. | |
| Module snd-riptide | |
| ------------------ | |
| Module for Conexant Riptide chip | |
| joystick_port - Joystick port # (default: 0x200) | |
| mpu_port - MPU401 port # (default: 0x330) | |
| opl3_port - OPL3 port # (default: 0x388) | |
| This module supports multiple cards. | |
| The driver requires the firmware loader support on kernel. | |
| You need to install the firmware file "riptide.hex" to the standard | |
| firmware path (e.g. /lib/firmware). | |
| Module snd-rme32 | |
| ---------------- | |
| Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32, | |
| Prodif96 and Prodif Gold) sound cards. | |
| This module supports multiple cards. | |
| Module snd-rme96 | |
| ---------------- | |
| Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards. | |
| This module supports multiple cards. | |
| Module snd-rme9652 | |
| ------------------ | |
| Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards. | |
| precise_ptr - Enable precise pointer (doesn't work reliably). | |
| (default = 0) | |
| This module supports multiple cards. | |
| Note: snd-page-alloc module does the job which snd-hammerfall-mem | |
| module did formerly. It will allocate the buffers in advance | |
| when any RME9652 cards are found. To make the buffer | |
| allocation sure, load snd-page-alloc module in the early | |
| stage of boot sequence. See "Early Buffer Allocation" | |
| section. | |
| Module snd-sa11xx-uda1341 (on arm only) | |
| --------------------------------------- | |
| Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card. | |
| Module supports only one card. | |
| Module has no enable and index options. | |
| The power-management is supported. | |
| Module snd-sb8 | |
| -------------- | |
| Module for 8-bit SoundBlaster cards: SoundBlaster 1.0, | |
| SoundBlaster 2.0, | |
| SoundBlaster Pro | |
| port - port # for SB DSP chip (0x220,0x240,0x260) | |
| irq - IRQ # for SB DSP chip (5,7,9,10) | |
| dma8 - DMA # for SB DSP chip (1,3) | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-sb16 and snd-sbawe | |
| ----------------------------- | |
| Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP), | |
| SoundBlaster AWE 32 (PnP), | |
| SoundBlaster AWE 64 PnP | |
| port - port # for SB DSP 4.x chip (0x220,0x240,0x260) | |
| mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable | |
| awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660) | |
| (snd-sbawe module only) | |
| irq - IRQ # for SB DSP 4.x chip (5,7,9,10) | |
| dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3) | |
| dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7) | |
| mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default) | |
| csp - ASP/CSP chip support - 0 = disable (default), 1 = enable | |
| isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) | |
| This module supports multiple cards, autoprobe and ISA PnP. | |
| Note: To use Vibra16X cards in 16-bit half duplex mode, you must | |
| disable 16bit DMA with dma16 = -1 module parameter. | |
| Also, all Sound Blaster 16 type cards can operate in 16-bit | |
| half duplex mode through 8-bit DMA channel by disabling their | |
| 16-bit DMA channel. | |
| The power-management is supported. | |
| Module snd-sgalaxy | |
| ------------------ | |
| Module for Aztech Sound Galaxy sound card. | |
| sbport - Port # for SB16 interface (0x220,0x240) | |
| wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604) | |
| irq - IRQ # (7,9,10,11) | |
| dma1 - DMA # | |
| This module supports multiple cards. | |
| The power-management is supported. | |
| Module snd-sscape | |
| ----------------- | |
| Module for ENSONIQ SoundScape PnP cards. | |
| port - Port # (PnP setup) | |
| irq - IRQ # (PnP setup) | |
| mpu_irq - MPU-401 IRQ # (PnP setup) | |
| dma - DMA # (PnP setup) | |
| This module supports multiple cards. ISA PnP must be enabled. | |
| You need sscape_ctl tool in alsa-tools package for loading | |
| the microcode. | |
| Module snd-sun-amd7930 (on sparc only) | |
| -------------------------------------- | |
| Module for AMD7930 sound chips found on Sparcs. | |
| This module supports multiple cards. | |
| Module snd-sun-cs4231 (on sparc only) | |
| ------------------------------------- | |
| Module for CS4231 sound chips found on Sparcs. | |
| This module supports multiple cards. | |
| Module snd-sun-dbri (on sparc only) | |
| ----------------------------------- | |
| Module for DBRI sound chips found on Sparcs. | |
| This module supports multiple cards. | |
| Module snd-wavefront | |
| -------------------- | |
| Module for Turtle Beach Maui, Tropez and Tropez+ sound cards. | |
| cs4232_pcm_port - Port # for CS4232 PCM interface. | |
| cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15). | |
| cs4232_mpu_port - Port # for CS4232 MPU-401 interface. | |
| cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15). | |
| use_cs4232_midi - Use CS4232 MPU-401 interface | |
| (inaccessibly located inside your computer) | |
| ics2115_port - Port # for ICS2115 | |
| ics2115_irq - IRQ # for ICS2115 | |
| fm_port - FM OPL-3 Port # | |
| dma1 - DMA1 # for CS4232 PCM interface. | |
| dma2 - DMA2 # for CS4232 PCM interface. | |
| isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) | |
| This module supports multiple cards and ISA PnP. | |
| Module snd-sonicvibes | |
| --------------------- | |
| Module for S3 SonicVibes PCI sound cards. | |
| * PINE Schubert 32 PCI | |
| reverb - Reverb Enable - 1 = enable, 0 = disable (default) | |
| - SoundCard must have onboard SRAM for this. | |
| mge - Mic Gain Enable - 1 = enable, 0 = disable (default) | |
| This module supports multiple cards and autoprobe. | |
| Module snd-serial-u16550 | |
| ------------------------ | |
| Module for UART16550A serial MIDI ports. | |
| port - port # for UART16550A chip | |
| irq - IRQ # for UART16550A chip, -1 = poll mode | |
| speed - speed in bauds (9600,19200,38400,57600,115200) | |
| 38400 = default | |
| base - base for divisor in bauds (57600,115200,230400,460800) | |
| 115200 = default | |
| outs - number of MIDI ports in a serial port (1-4) | |
| 1 = default | |
| adaptor - Type of adaptor. | |
| 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A, | |
| 3 = MS-124W M/B, 4 = Generic | |
| This module supports multiple cards. This module does not support autoprobe | |
| thus the main port must be specified!!! Other options are optional. | |
| Module snd-trident | |
| ------------------ | |
| Module for Trident 4DWave DX/NX sound cards. | |
| * Best Union Miss Melody 4DWave PCI | |
| * HIS 4DWave PCI | |
| * Warpspeed ONSpeed 4DWave PCI | |
| * AzTech PCI 64-Q3D | |
| * Addonics SV 750 | |
| * CHIC True Sound 4Dwave | |
| * Shark Predator4D-PCI | |
| * Jaton SonicWave 4D | |
| pcm_channels - max channels (voices) reserved for PCM | |
| wavetable_size - max wavetable size in kB (4-?kb) | |
| This module supports multiple cards and autoprobe. | |
| The power-management is supported. | |
| Module snd-usb-audio | |
| -------------------- | |
| Module for USB audio and USB MIDI devices. | |
| vid - Vendor ID for the device (optional) | |
| pid - Product ID for the device (optional) | |
| device_setup - Device specific magic number (optional) | |
| - Influence depends on the device | |
| - Default: 0x0000 | |
| This module supports multiple devices, autoprobe and hotplugging. | |
| Module snd-usb-usx2y | |
| -------------------- | |
| Module for Tascam USB US-122, US-224 and US-428 devices. | |
| This module supports multiple devices, autoprobe and hotplugging. | |
| Note: you need to load the firmware via usx2yloader utility included | |
| in alsa-tools and alsa-firmware packages. | |
| Module snd-via82xx | |
| ------------------ | |
| Module for AC'97 motherboards based on VIA 82C686A/686B, 8233, | |
| 8233A, 8233C, 8235, 8237 (south) bridge. | |
| mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup | |
| [VIA686A/686B only] | |
| joystick - Enable joystick (default off) [VIA686A/686B only] | |
| ac97_clock - AC'97 codec clock base (default 48000Hz) | |
| dxs_support - support DXS channels, | |
| 0 = auto (default), 1 = enable, 2 = disable, | |
| 3 = 48k only, 4 = no VRA, 5 = enable any sample | |
| rate and different sample rates on different | |
| channels | |
| [VIA8233/C, 8235, 8237 only] | |
| ac97_quirk - AC'97 workaround for strange hardware | |
| See "AC97 Quirk Option" section below. | |
| This module supports one chip and autoprobe. | |
| Note: on some SMP motherboards like MSI 694D the interrupts might | |
| not be generated properly. In such a case, please try to | |
| set the SMP (or MPS) version on BIOS to 1.1 instead of | |
| default value 1.4. Then the interrupt number will be | |
| assigned under 15. You might also upgrade your BIOS. | |
| Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound) | |
| channels as the first PCM. On these channels, up to 4 | |
| streams can be played at the same time, and the controller | |
| can perform sample rate conversion with separate rates for | |
| each channel. | |
| As default (dxs_support = 0), 48k fixed rate is chosen | |
| except for the known devices since the output is often | |
| noisy except for 48k on some mother boards due to the | |
| bug of BIOS. | |
| Please try once dxs_support=5 and if it works on other | |
| sample rates (e.g. 44.1kHz of mp3 playback), please let us | |
| know the PCI subsystem vendor/device id's (output of | |
| "lspci -nv"). | |
| If dxs_support=5 does not work, try dxs_support=4; if it | |
| doesn't work too, try dxs_support=1. (dxs_support=1 is | |
| usually for old motherboards. The correct implemented | |
| board should work with 4 or 5.) If it still doesn't | |
| work and the default setting is ok, dxs_support=3 is the | |
| right choice. If the default setting doesn't work at all, | |
| try dxs_support=2 to disable the DXS channels. | |
| In any cases, please let us know the result and the | |
| subsystem vendor/device ids. See "Links and Addresses" | |
| below. | |
| Note: for the MPU401 on VIA823x, use snd-mpu401 driver | |
| additionally. The mpu_port option is for VIA686 chips only. | |
| The power-management is supported. | |
| Module snd-via82xx-modem | |
| ------------------------ | |
| Module for VIA82xx AC97 modem | |
| ac97_clock - AC'97 codec clock base (default 48000Hz) | |
| This module supports one card and autoprobe. | |
| Note: The default index value of this module is -2, i.e. the first | |
| slot is excluded. | |
| The power-management is supported. | |
| Module snd-virmidi | |
| ------------------ | |
| Module for virtual rawmidi devices. | |
| This module creates virtual rawmidi devices which communicate | |
| to the corresponding ALSA sequencer ports. | |
| midi_devs - MIDI devices # (1-4, default=4) | |
| This module supports multiple cards. | |
| Module snd-vx222 | |
| ---------------- | |
| Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards. | |
| mic - Enable Microphone on V222 Mic (NYI) | |
| ibl - Capture IBL size. (default = 0, minimum size) | |
| This module supports multiple cards. | |
| When the driver is compiled as a module and the hotplug firmware | |
| is supported, the firmware data is loaded via hotplug automatically. | |
| Install the necessary firmware files in alsa-firmware package. | |
| When no hotplug fw loader is available, you need to load the | |
| firmware via vxloader utility in alsa-tools package. To invoke | |
| vxloader automatically, add the following to /etc/modprobe.conf | |
| install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader | |
| (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to | |
| /etc/modules.conf, instead.) | |
| IBL size defines the interrupts period for PCM. The smaller size | |
| gives smaller latency but leads to more CPU consumption, too. | |
| The size is usually aligned to 126. As default (=0), the smallest | |
| size is chosen. The possible IBL values can be found in | |
| /proc/asound/cardX/vx-status proc file. | |
| The power-management is supported. | |
| Module snd-vxpocket | |
| ------------------- | |
| Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards. | |
| ibl - Capture IBL size. (default = 0, minimum size) | |
| This module supports multiple cards. The module is compiled only when | |
| PCMCIA is supported on kernel. | |
| With the older 2.6.x kernel, to activate the driver via the card | |
| manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the | |
| sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no | |
| longer require a config file. | |
| When the driver is compiled as a module and the hotplug firmware | |
| is supported, the firmware data is loaded via hotplug automatically. | |
| Install the necessary firmware files in alsa-firmware package. | |
| When no hotplug fw loader is available, you need to load the | |
| firmware via vxloader utility in alsa-tools package. | |
| About capture IBL, see the description of snd-vx222 module. | |
| Note: snd-vxp440 driver is merged to snd-vxpocket driver since | |
| ALSA 1.0.10. | |
| The power-management is supported. | |
| Module snd-ymfpci | |
| ----------------- | |
| Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x). | |
| mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default, | |
| 1 (auto-detect for YMF744/754 only) | |
| fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default | |
| 1 (auto-detect for YMF744/754 only) | |
| joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default, | |
| 1 (auto-detect) | |
| rear_switch - enable shared rear/line-in switch (bool) | |
| This module supports autoprobe and multiple chips. | |
| The power-management is supported. | |
| Module snd-pdaudiocf | |
| -------------------- | |
| Module for Sound Core PDAudioCF sound card. | |
| The power-management is supported. | |
| AC97 Quirk Option | |
| ================= | |
| The ac97_quirk option is used to enable/override the workaround for | |
| specific devices on drivers for on-board AC'97 controllers like | |
| snd-intel8x0. Some hardware have swapped output pins between Master | |
| and Headphone, or Surround (thanks to confusion of AC'97 | |
| specifications from version to version :-) | |
| The driver provides the auto-detection of known problematic devices, | |
| but some might be unknown or wrongly detected. In such a case, pass | |
| the proper value with this option. | |
| The following strings are accepted: | |
| - default Don't override the default setting | |
| - none Disable the quirk | |
| - hp_only Bind Master and Headphone controls as a single control | |
| - swap_hp Swap headphone and master controls | |
| - swap_surround Swap master and surround controls | |
| - ad_sharing For AD1985, turn on OMS bit and use headphone | |
| - alc_jack For ALC65x, turn on the jack sense mode | |
| - inv_eapd Inverted EAPD implementation | |
| - mute_led Bind EAPD bit for turning on/off mute LED | |
| For backward compatibility, the corresponding integer value -1, 0, | |
| ... are accepted, too. | |
| For example, if "Master" volume control has no effect on your device | |
| but only "Headphone" does, pass ac97_quirk=hp_only module option. | |
| Configuring Non-ISAPNP Cards | |
| ============================ | |
| When the kernel is configured with ISA-PnP support, the modules | |
| supporting the isapnp cards will have module options "isapnp". | |
| If this option is set, *only* the ISA-PnP devices will be probed. | |
| For probing the non ISA-PnP cards, you have to pass "isapnp=0" option | |
| together with the proper i/o and irq configuration. | |
| When the kernel is configured without ISA-PnP support, isapnp option | |
| will be not built in. | |
| Module Autoloading Support | |
| ========================== | |
| The ALSA drivers can be loaded automatically on demand by defining | |
| module aliases. The string 'snd-card-%1' is requested for ALSA native | |
| devices where %i is sound card number from zero to seven. | |
| To auto-load an ALSA driver for OSS services, define the string | |
| 'sound-slot-%i' where %i means the slot number for OSS, which | |
| corresponds to the card index of ALSA. Usually, define this | |
| as the same card module. | |
| An example configuration for a single emu10k1 card is like below: | |
| ----- /etc/modprobe.conf | |
| alias snd-card-0 snd-emu10k1 | |
| alias sound-slot-0 snd-emu10k1 | |
| ----- /etc/modprobe.conf | |
| The available number of auto-loaded sound cards depends on the module | |
| option "cards_limit" of snd module. As default it's set to 1. | |
| To enable the auto-loading of multiple cards, specify the number of | |
| sound cards in that option. | |
| When multiple cards are available, it'd better to specify the index | |
| number for each card via module option, too, so that the order of | |
| cards is kept consistent. | |
| An example configuration for two sound cards is like below: | |
| ----- /etc/modprobe.conf | |
| # ALSA portion | |
| options snd cards_limit=2 | |
| alias snd-card-0 snd-interwave | |
| alias snd-card-1 snd-ens1371 | |
| options snd-interwave index=0 | |
| options snd-ens1371 index=1 | |
| # OSS/Free portion | |
| alias sound-slot-0 snd-interwave | |
| alias sound-slot-1 snd-ens1371 | |
| ----- /etc/modprobe.conf | |
| In this example, the interwave card is always loaded as the first card | |
| (index 0) and ens1371 as the second (index 1). | |
| ALSA PCM devices to OSS devices mapping | |
| ======================================= | |
| /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4 | |
| /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3 | |
| /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12 | |
| /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20 | |
| /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19 | |
| /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28 | |
| /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36 | |
| /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39 | |
| /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44 | |
| The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means | |
| sound card number and second means device number. The ALSA devices | |
| have either 'c' or 'p' suffix indicating the direction, capture and | |
| playback, respectively. | |
| Please note that the device mapping above may be varied via the module | |
| options of snd-pcm-oss module. | |
| Proc interfaces (/proc/asound) | |
| ============================== | |
| /proc/asound/card#/pcm#[cp]/oss | |
| ------------------------------- | |
| String "erase" - erase all additional informations about OSS applications | |
| String "<app_name> <fragments> <fragment_size> [<options>]" | |
| <app_name> - name of application with (higher priority) or without path | |
| <fragments> - number of fragments or zero if auto | |
| <fragment_size> - size of fragment in bytes or zero if auto | |
| <options> - optional parameters | |
| - disable the application tries to open a pcm device for | |
| this channel but does not want to use it. | |
| (Cause a bug or mmap needs) | |
| It's good for Quake etc... | |
| - direct don't use plugins | |
| - block force block mode (rvplayer) | |
| - non-block force non-block mode | |
| - whole-frag write only whole fragments (optimization affecting | |
| playback only) | |
| - no-silence do not fill silence ahead to avoid clicks | |
| - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl | |
| instead of filled blocks | |
| Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss | |
| echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss | |
| echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss | |
| Early Buffer Allocation | |
| ======================= | |
| Some drivers (e.g. hdsp) require the large contiguous buffers, and | |
| sometimes it's too late to find such spaces when the driver module is | |
| actually loaded due to memory fragmentation. You can pre-allocate the | |
| PCM buffers by loading snd-page-alloc module and write commands to its | |
| proc file in prior, for example, in the early boot stage like | |
| /etc/init.d/*.local scripts. | |
| Reading the proc file /proc/drivers/snd-page-alloc shows the current | |
| usage of page allocation. In writing, you can send the following | |
| commands to the snd-page-alloc driver: | |
| - add VENDOR DEVICE MASK SIZE BUFFERS | |
| VENDOR and DEVICE are PCI vendor and device IDs. They take | |
| integer numbers (0x prefix is needed for the hex). | |
| MASK is the PCI DMA mask. Pass 0 if not restricted. | |
| SIZE is the size of each buffer to allocate. You can pass | |
| k and m suffix for KB and MB. The max number is 16MB. | |
| BUFFERS is the number of buffers to allocate. It must be greater | |
| than 0. The max number is 4. | |
| - erase | |
| This will erase the all pre-allocated buffers which are not in | |
| use. | |
| Links and Addresses | |
| =================== | |
| ALSA project homepage | |
| http://www.alsa-project.org | |
| ALSA Bug Tracking System | |
| https://bugtrack.alsa-project.org/bugs/ | |
| ALSA Developers ML | |
| mailto:alsa-devel@lists.sourceforge.net |