--- /dev/null
+
+ 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.
+ slots - Reserve the slot index for the given driver.
+ This option takes multiple strings.
+ See "Module Autoloading Support" section for details.
+ debug - Specifies the debug message level
+ (0 = disable debug prints, 1 = normal debug messages,
+ 2 = verbose debug messages)
+ This option appears only when CONFIG_SND_DEBUG=y.
+ This option can be dynamically changed via sysfs
+ /sys/modules/snd/parameters/debug file.
+
+ 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.
+
+ 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.
+
+ 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-asihpi
+ -----------------
+
+ Module for AudioScience ASI soundcards
+
+ enable_hpi_hwdep - enable HPI hwdep for AudioScience soundcard
+
+ This module supports multiple cards.
+ The driver requires the firmware loader support on kernel.
+
+ 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.
+ ac97_codec - Workaround to specify which AC'97 codec
+ instead of probing. If this works for you
+ file a bug with your `lspci -vn` output.
+ -2 -- Force probing.
+ -1 -- Default behavior.
+ 0-2 -- Use the specified codec.
+ 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-azt1605
+ ------------------
+
+ Module for Aztech Sound Galaxy soundcards based on the Aztech AZT1605
+ chipset.
+
+ port - port # for BASE (0x220,0x240,0x260,0x280)
+ wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
+ irq - IRQ # for WSS (7,9,10,11)
+ dma1 - DMA # for WSS playback (0,1,3)
+ dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
+ mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
+ mpu_irq - IRQ # for MPU-401 UART (3,5,7,9), -1 = disabled (default)
+ fm_port - port # for OPL3 (0x388), -1 = disabled (default)
+
+ This module supports multiple cards. It does not support autoprobe: port,
+ wss_port, irq and dma1 have to be specified. The other values are
+ optional.
+
+ "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
+ or the value stored in the card's EEPROM for cards that have an EEPROM and
+ their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
+ be chosen freely from the options enumerated above.
+
+ If dma2 is specified and different from dma1, the card will operate in
+ full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
+ enable capture since only channels 0 and 1 are available for capture.
+
+ Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
+ mpu_port=0x330 mpu_irq=9 fm_port=0x388".
+
+ Whatever IRQ and DMA channels you pick, be sure to reserve them for
+ legacy ISA in your BIOS.
+
+ Module snd-azt2316
+ ------------------
+
+ Module for Aztech Sound Galaxy soundcards based on the Aztech AZT2316
+ chipset.
+
+ port - port # for BASE (0x220,0x240,0x260,0x280)
+ wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
+ irq - IRQ # for WSS (7,9,10,11)
+ dma1 - DMA # for WSS playback (0,1,3)
+ dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
+ mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
+ mpu_irq - IRQ # for MPU-401 UART (5,7,9,10), -1 = disabled (default)
+ fm_port - port # for OPL3 (0x388), -1 = disabled (default)
+
+ This module supports multiple cards. It does not support autoprobe: port,
+ wss_port, irq and dma1 have to be specified. The other values are
+ optional.
+
+ "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
+ or the value stored in the card's EEPROM for cards that have an EEPROM and
+ their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
+ be chosen freely from the options enumerated above.
+
+ If dma2 is specified and different from dma1, the card will operate in
+ full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
+ enable capture since only channels 0 and 1 are available for capture.
+
+ Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
+ mpu_port=0x330 mpu_irq=9 fm_port=0x388".
+
+ Whatever IRQ and DMA channels you pick, be sure to reserve them for
+ legacy ISA in your BIOS.
+
+ Module snd-aw2
+ --------------
+
+ Module for Audiowerk2 sound card
+
+ This module supports multiple cards.
+
+ Module snd-azt2320
+ ------------------
+
+ Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
+
+ 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.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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)
+ fmport - (optional) OPL3 I/O port
+ mpuport - (optional) MPU401 I/O port
+ mpuirq - (optional) MPU401 irq #
+
+ This module supports multiple cards and autoprobe.
+
+ The power-management is supported.
+
+ Module snd-cmipci
+ -----------------
+
+ Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
+
+ mpu_port - port address of MIDI interface (8338 only):
+ 0x300,0x310,0x320,0x330 = legacy port,
+ 0 = disable (default)
+ fm_port - port address of OPL-3 FM synthesizer (8x38 only):
+ 0x388 = legacy port,
+ 1 = integrated PCI port (default on 8738),
+ 0 = disable
+ 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-cs4236
+ -----------------
+
+ Module for sound cards based on CS4232/CS4232A,
+ CS4235/CS4236/CS4236B/CS4237B/
+ CS4238B/CS4239 ISA chips.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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
+
+ 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.
+
+ This module is aliased as snd-cs4232 since it provides the old
+ snd-cs4232 functionality, too.
+
+ 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-cs5530
+ _________________
+
+ Module for Cyrix/NatSemi Geode 5530 chip.
+
+ Module snd-cs5535audio
+ ----------------------
+
+ Module for multifunction CS5535 companion PCI device
+
+ The power-management is supported.
+
+ Module snd-ctxfi
+ ----------------
+
+ Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
+ * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
+ * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
+ * Creative Sound Blaster X-Fi Titanium Professional Audio
+ * Creative Sound Blaster X-Fi Titanium
+ * Creative Sound Blaster X-Fi Elite Pro
+ * Creative Sound Blaster X-Fi Platinum
+ * Creative Sound Blaster X-Fi Fatal1ty
+ * Creative Sound Blaster X-Fi XtremeGamer
+ * Creative Sound Blaster X-Fi XtremeMusic
+
+ reference_rate - reference sample rate, 44100 or 48000 (default)
+ multiple - multiple to ref. sample rate, 1 or 2 (default)
+ subsystem - override the PCI SSID for probing; the value
+ consists of SSVID << 16 | SSDID. The default is
+ zero, which means no override.
+
+ This module supports multiple cards.
+
+ 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)
+
+ 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).
+
+ pcm_devs - Number of PCM devices assigned to each card
+ (default = 1, up to 4)
+ pcm_substreams - Number of PCM substreams assigned to each PCM
+ (default = 8, up to 128)
+ hrtimer - Use hrtimer (=1, default) or system timer (=0)
+ fake_buffer - Fake buffer allocations (default = 1)
+
+ When multiple PCM devices are created, snd-dummy gives different
+ behavior to each PCM device:
+ 0 = interleaved with mmap support
+ 1 = non-interleaved with mmap support
+ 2 = interleaved without mmap
+ 3 = non-interleaved without mmap
+
+ As default, snd-dummy drivers doesn't allocate the real buffers
+ but either ignores read/write or mmap a single dummy page to all
+ buffer pages, in order to save the resources. If your apps need
+ the read/ written buffer data to be consistent, pass fake_buffer=0
+ option.
+
+ 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-es1688
+ -----------------
+
+ Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+ mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
+ mpu_irq - IRQ # for MPU-401 port (5,7,9,10)
+ fm_port - port # for OPL3 (option; share the same port as default)
+
+ with isapnp=0, the following additional options are available:
+ port - port # for ES-1688 chip (0x220,0x240,0x260)
+ irq - IRQ # for ES-1688 chip (5,7,9,10)
+ dma8 - DMA # for ES-1688 chip (0,1,3)
+
+ This module supports multiple cards and autoprobe (without MPU-401 port)
+ and PnP with the ES968 chip.
+
+ Module snd-es18xx
+ -----------------
+
+ Module for ESS AudioDrive ES-18xx sound cards.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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)
+
+ 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, ICH9, ICH10,
+ PCH, SCH),
+ ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620,
+ RV630, RV635, RV670, RV770,
+ VIA VT8251/VT8237A,
+ SIS966, ULI M5461
+
+ [Multiple options for each card instance]
+ model - force the model name
+ position_fix - Fix DMA pointer
+ -1 = system default: choose appropriate one per controller
+ hardware
+ 0 = auto: falls back to LPIB when POSBUF doesn't work
+ 1 = use LPIB
+ 2 = POSBUF: use position buffer
+ 3 = VIACOMBO: VIA-specific workaround for capture
+ 4 = COMBO: use LPIB for playback, auto for capture stream
+ probe_mask - Bitmask to probe codecs (default = -1, meaning all slots)
+ When the bit 8 (0x100) is set, the lower 8 bits are used
+ as the "fixed" codec slots; i.e. the driver probes the
+ slots regardless what hardware reports back
+ probe_only - Only probing and no codec initialization (default=off);
+ Useful to check the initial codec status for debugging
+ bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
+ Passing -1 will make the driver to choose the appropriate
+ value based on the controller chip.
+ patch - Specifies the early "patch" files to modify the HD-audio
+ setup before initializing the codecs. This option is
+ available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
+ See HD-Audio.txt for details.
+ beep_mode - Selects the beep registration mode (0=off, 1=on); default
+ value is set via CONFIG_SND_HDA_INPUT_BEEP_MODE kconfig.
+
+ [Single (global) options]
+ single_cmd - Use single immediate commands to communicate with
+ codecs (for debugging only)
+ enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
+ power_save - Automatic power-saving timeout (in second, 0 =
+ disable)
+ power_save_controller - Reset HD-audio controller in power-saving mode
+ (default = on)
+ align_buffer_size - Force rounding of buffer/period sizes to multiples
+ of 128 bytes. This is more efficient in terms of memory
+ access but isn't required by the HDA spec and prevents
+ users from specifying exact period/buffer sizes.
+ (default = on)
+ snoop - Enable/disable snooping (default = on)
+
+ This module supports multiple cards and autoprobe.
+
+ See Documentation/sound/alsa/HD-Audio.txt for more details about
+ HD-audio driver.
+
+ 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. The list of available models
+ is found in HD-Audio-Models.txt
+
+ The model name "generic" is treated as a special case. When this
+ model is given, the driver uses the generic codec parser without
+ "codec-patch". It's sometimes good for testing and debugging.
+
+ If the default configuration doesn't work and one of the above
+ matches with your device, report it together with alsa-info.sh
+ output (with --no-upload option) to kernel bugzilla or alsa-devel
+ ML (see the section "Links and Addresses").
+
+ power_save and power_save_controller options are for power-saving
+ mode. See powersave.txt for details.
+
+ 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_LPIB register is more accurate than the
+ position buffer.)
+
+ position_fix=3 is specific to VIA devices. The position
+ of the capture stream is checked from both LPIB and POSBUF
+ values. position_fix=4 is a combination mode, using LPIB
+ for playback and POSBUF for capture.
+
+ 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...
+
+ MORE NOTES ON "azx_get_response timeout" PROBLEMS:
+ On some hardware, you may need to add a proper probe_mask option
+ to avoid the "azx_get_response timeout" problem above, instead.
+ This occurs when the access to non-existing or non-working codec slot
+ (likely a modem one) causes a stall of the communication via HD-audio
+ bus. You can see which codec slots are probed by enabling
+ CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec
+ proc files. Then limit the slots to probe by probe_mask option.
+ For example, probe_mask=1 means to probe only the first slot, and
+ probe_mask=4 means only the third slot.
+
+ 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
+ * Terrasoniq TS 88
+
+ 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
+ * MidiMan M Audio Audiophile 192
+ * 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 7.1 LT
+ * AudioTrak Prodigy 7.1 XT
+ * AudioTrak Prodigy 7.1 HIFI
+ * AudioTrak Prodigy 7.1 HD2
+ * AudioTrak Prodigy 192
+ * Pontis MS300
+ * Albatron K8X800 Pro II
+ * Chaintech ZNF3-150
+ * Chaintech ZNF3-250
+ * Chaintech 9CJS
+ * Chaintech AV-710
+ * Shuttle SN25P
+ * Onkyo SE-90PCI
+ * Onkyo SE-200PCI
+ * ESI Juli@
+ * ESI Maya44
+ * Hercules Fortissimo IV
+ * EGO-SYS WaveTerminal 192M
+
+ model - Use the given board model, one of the following:
+ revo51, revo71, amp2000, prodigy71, prodigy71lt,
+ prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192,
+ juli, aureon51, aureon71, universe, ap192, k8x800,
+ phase22, phase28, ms300, av710, se200pci, se90pci,
+ fortissimo4, sn25p, WT192M, maya44
+
+ 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, 6300ESB, 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 hardware with buggy
+ semaphores (e.g. on some ASUS laptops)
+ (default off)
+ spdif_aclink - Use S/PDIF over AC-link instead of direct connection
+ from the controller chip
+ (0 = off, 1 = on, -1 = default)
+
+ 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.
+
+ 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
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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)
+
+ 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.
+
+ 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
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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)
+
+ This module supports multiple cards, autoprobe and ISA PnP.
+
+ Module snd-jazz16
+ -------------------
+
+ Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
+ MVD1216 + MVA416 + MVA514.
+
+ port - port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
+ irq - IRQ # for SB DSP chip (3,5,7,9,10,15)
+ dma8 - DMA # for SB DSP chip (1,3)
+ dma16 - DMA # for SB DSP chip (5,7)
+ mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
+ mpu_irq - MPU-401 irq # (2,3,5,7)
+
+ This module supports multiple cards.
+
+ 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-lola
+ ---------------
+
+ Module for Digigram Lola PCI-e boards
+
+ This module supports multiple cards.
+
+ Module snd-lx6464es
+ -------------------
+
+ Module for Digigram LX6464ES boards
+
+ This module supports multiple cards.
+
+ 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-msnd-classic
+ -----------------------
+
+ Module for Turtle Beach MultiSound Classic, Tahiti or Monterey
+ soundcards.
+
+ io - Port # for msnd-classic card
+ irq - IRQ # for msnd-classic card
+ mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
+ 0xe0000 or 0xe8000)
+ write_ndelay - enable write ndelay (default = 1)
+ calibrate_signal - calibrate signal (default = 0)
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+ digital - Digital daughterboard present (default = 0)
+ cfg - Config port (0x250, 0x260 or 0x270) default = PnP
+ reset - Reset all devices
+ mpu_io - MPU401 I/O port
+ mpu_irq - MPU401 irq#
+ ide_io0 - IDE port #0
+ ide_io1 - IDE port #1
+ ide_irq - IDE irq#
+ joystick_io - Joystick I/O port
+
+ The driver requires firmware files "turtlebeach/msndinit.bin" and
+ "turtlebeach/msndperm.bin" in the proper firmware directory.
+
+ See Documentation/sound/oss/MultiSound for important information
+ about this driver. Note that it has been discontinued, but the
+ Voyetra Turtle Beach knowledge base entry for it is still available
+ at
+ http://www.turtlebeach.com
+
+ Module snd-msnd-pinnacle
+ ------------------------
+
+ Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.
+
+ io - Port # for pinnacle/fiji card
+ irq - IRQ # for pinnalce/fiji card
+ mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,
+ 0xe0000 or 0xe8000)
+ write_ndelay - enable write ndelay (default = 1)
+ calibrate_signal - calibrate signal (default = 0)
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ The driver requires firmware files "turtlebeach/pndspini.bin" and
+ "turtlebeach/pndsperm.bin" in the proper firmware directory.
+
+ 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.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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
+
+ 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.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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.
+
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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-oxygen
+ -----------------
+
+ Module for sound cards based on the C-Media CMI8786/8787/8788 chip:
+ * Asound A-8788
+ * Asus Xonar DG/DGX
+ * AuzenTech X-Meridian
+ * AuzenTech X-Meridian 2G
+ * Bgears b-Enspirer
+ * Club3D Theatron DTS
+ * HT-Omega Claro (plus)
+ * HT-Omega Claro halo (XT)
+ * Kuroutoshikou CMI8787-HG2PCI
+ * Razer Barracuda AC-1
+ * Sondigo Inferno
+ * TempoTec HiFier Fantasia
+ * TempoTec HiFier Serenade
+
+ This module supports autoprobe and multiple cards.
+
+ Module snd-pcsp
+ -----------------
+
+ Module for internal PC-Speaker.
+
+ nopcm - Disable PC-Speaker PCM sound. Only beeps remain.
+ nforce_wa - enable NForce chipset workaround. Expect bad sound.
+
+ This module supports system beeps, some kind of PCM playback and
+ even a few mixer controls.
+
+ Module snd-pcxhr
+ ----------------
+
+ Module for Digigram PCXHR boards
+
+ This module supports multiple cards.
+
+ Module snd-portman2x4
+ ---------------------
+
+ Module for Midiman Portman 2x4 parallel port MIDI interface
+
+ 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 endianness.
+
+ 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
+
+ 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)
+
+ with isapnp=0, the following options are available:
+
+ 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)
+
+ 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-sc6000
+ -----------------
+
+ Module for Gallant SC-6000 soundcard and later models: SC-6600
+ and SC-7000.
+
+ port - Port # (0x220 or 0x240)
+ mss_port - MSS Port # (0x530 or 0xe80)
+ irq - IRQ # (5,7,9,10,11)
+ mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
+ dma - DMA # (1,3,0)
+ joystick - Enable gameport - 0 = disable (default), 1 = enable
+
+ This module supports multiple cards.
+
+ This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
+
+ Module snd-sscape
+ -----------------
+
+ Module for ENSONIQ SoundScape cards.
+
+ port - Port # (PnP setup)
+ wss_port - WSS Port # (PnP setup)
+ irq - IRQ # (PnP setup)
+ mpu_irq - MPU-401 IRQ # (PnP setup)
+ dma - DMA # (PnP setup)
+ dma2 - 2nd DMA # (PnP setup, -1 to disable)
+ joystick - Enable gameport - 0 = disable (default), 1 = enable
+
+ This module supports multiple cards.
+
+ The driver requires the firmware loader support on kernel.
+
+ 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.
+
+ use_cs4232_midi - Use CS4232 MPU-401 interface
+ (inaccessibly located inside your computer)
+ isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+
+ with isapnp=0, the following options are available:
+
+ 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).
+ 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.
+
+ The below are options for wavefront_synth features:
+ wf_raw - Assume that we need to boot the OS (default:no)
+ If yes, then during driver loading, the state of the board is
+ ignored, and we reset the board and load the firmware anyway.
+ fx_raw - Assume that the FX process needs help (default:yes)
+ If false, we'll leave the FX processor in whatever state it is
+ when the driver is loaded. The default is to download the
+ microprogram and associated coefficients to set it up for
+ "default" operation, whatever that means.
+ debug_default - Debug parameters for card initialization
+ wait_usecs - How long to wait without sleeping, usecs
+ (default:150)
+ This magic number seems to give pretty optimal throughput
+ based on my limited experimentation.
+ If you want to play around with it and find a better value, be
+ my guest. Remember, the idea is to get a number that causes us
+ to just busy wait for as many WaveFront commands as possible,
+ without coming up with a number so large that we hog the whole
+ CPU.
+ Specifically, with this number, out of about 134,000 status
+ waits, only about 250 result in a sleep.
+ sleep_interval - How long to sleep when waiting for reply
+ (default: 100)
+ sleep_tries - How many times to try sleeping during a wait
+ (default: 50)
+ ospath - Pathname to processed ICS2115 OS firmware
+ (default:wavefront.os)
+ The path name of the ISC2115 OS firmware. In the recent
+ version, it's handled via firmware loader framework, so it
+ must be installed in the proper path, typically,
+ /lib/firmware.
+ reset_time - How long to wait for a reset to take effect
+ (default:2)
+ ramcheck_time - How many seconds to wait for the RAM test
+ (default:20)
+ osrun_time - How many seconds to wait for the ICS2115 OS
+ (default:10)
+
+ This module supports multiple cards and ISA PnP.
+
+ Note: the firmware file "wavefront.os" was located in the earlier
+ version in /etc. Now it's loaded via firmware loader, and
+ must be in the proper firmware path, such as /lib/firmware.
+ Copy (or symlink) the file appropriately if you get an error
+ regarding firmware downloading after upgrading the kernel.
+
+ 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
+ * SiS SI7018 PCI Audio
+ * Hoontech SoundTrack Digital 4DWave NX
+
+ 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-ua101
+ ----------------
+
+ Module for the Edirol UA-101/UA-1000 audio/MIDI interfaces.
+
+ This module supports multiple devices, autoprobe and hotplugging.
+
+ 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)
+ nrpacks - Max. number of packets per URB (default: 8)
+ device_setup - Device specific magic number (optional)
+ - Influence depends on the device
+ - Default: 0x0000
+ ignore_ctl_error - Ignore any USB-controller regarding mixer
+ interface (default: no)
+
+ This module supports multiple devices, autoprobe and hotplugging.
+
+ NB: nrpacks parameter can be modified dynamically via sysfs.
+ Don't put the value over 20. Changing via sysfs has no sanity
+ check.
+ NB: ignore_ctl_error=1 may help when you get an error at accessing
+ the mixer element such as URB error -22. This happens on some
+ buggy USB device or the controller.
+
+ Module snd-usb-caiaq
+ --------------------
+
+ Module for caiaq UB audio interfaces,
+ * Native Instruments RigKontrol2
+ * Native Instruments Kore Controller
+ * Native Instruments Audio Kontrol 1
+ * Native Instruments Audio 8 DJ
+
+ 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-virtuoso
+ -------------------
+
+ Module for sound cards based on the Asus AV66/AV100/AV200 chips,
+ i.e., Xonar D1, DX, D2, D2X, DS, DSX, Essence ST (Deluxe),
+ Essence STX (II), HDAV1.3 (Deluxe), and HDAV1.3 Slim.
+
+ This module supports autoprobe and 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.d/alsa.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.d/alsa.conf
+alias snd-card-0 snd-emu10k1
+alias sound-slot-0 snd-emu10k1
+----- /etc/modprobe.d/alsa.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.d/alsa.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.d/alsa.conf
+
+In this example, the interwave card is always loaded as the first card
+(index 0) and ens1371 as the second (index 1).
+
+Alternative (and new) way to fixate the slot assignment is to use
+"slots" option of snd module. In the case above, specify like the
+following:
+
+options snd slots=snd-interwave,snd-ens1371
+
+Then, the first slot (#0) is reserved for snd-interwave driver, and
+the second (#1) for snd-ens1371. You can omit index option in each
+driver if slots option is used (although you can still have them at
+the same time as long as they don't conflict).
+
+The slots option is especially useful for avoiding the possible
+hot-plugging and the resultant slot conflict. For example, in the
+case above again, the first two slots are already reserved. If any
+other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
+snd-ens1371, it will be assigned to the third or later slot.
+
+When a module name is given with '!', the slot will be given for any
+modules but that name. For example, "slots=!snd-pcsp" will reserve
+the first slot for any modules but snd-pcsp.
+
+
+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 information 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
+
+ Kernel Bugzilla
+ http://bugzilla.kernel.org/
+
+ ALSA Developers ML
+ mailto:alsa-devel@alsa-project.org
+
+ alsa-info.sh script
+ http://www.alsa-project.org/alsa-info.sh
Code Review / kvmfornfv.git / blobdiff