Module for ATI IXP 150/200/250 AC97 controllers.
ac97_clock - AC'97 clock (defalut = 48000)
+ ac97_quirk - AC'97 workaround for strange hardware
+ See the description of intel8x0 module for details.
spdif_aclink - S/PDIF transfer over AC-link (default = 1)
This module supports up to 8 cards and autoprobe.
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
Module supports up to 8 cards.
+ Module snd-ca0106
+ -----------------
+
+ Module for Creative Audigy LS and SB Live 24bit
+
+ Module supports up to 8 cards.
+
+
Module snd-cmi8330
------------------
* Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff]
* Creative Card all ins and outs [0x3fff/0x7fff]
+ Module snd-emu10k1x
+ -------------------
+
+ Module for Creative Emu10k1X (SB Live Dell OEM version)
+
+ Module supports up to 8 cards.
+
Module snd-ens1370
------------------
Module supports up to 8 cards.
- Note: you need to load the firmware via hdsploader utility included
- in alsa-tools and alsa-firmware packages.
+ 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
* ALi m5455
ac97_clock - AC'97 codec clock base (0 = auto-detect)
- joystick - Enable joystick (default off)
- mpu_port - MPU401 port # (0 = disabled, 0x330,0x300)
- ac97_quirk - AC'97 workaround for strange hardware (-1 = default)
- -1 = default, don't override
- 0 = disable
- 1 = use headphone control as master
- 2 = swap headphone and master controls
- 3 = for AD1985, turn on OMS bit and use headphone
- 4 = for ALC65x, turn on the jack sense mode
- buggy_irq - Enable workaround for buggy interrupts on some
- motherboards (default off)
+ ac97_quirk - AC'97 workaround for strange hardware
+ The following strings are accepted:
+ default = don't override the default setting
+ disable = disable the quirk
+ hp_only = use headphone control as master
+ swap_hp = swap headphone and master controls
+ swap_surround = swap master and surround controls
+ ad_shring = 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.
+ buggy_irq - Enable workaround for buggy interrupts on some
+ motherboards (default off)
Module supports autoprobe and multiple bus-master chips (max 8).
if you still encounter too fast playback, specify the clock
explicitly via the module option "ac97_clock=41194".
- The joystick and MPU-401 are supported only certain hardwares.
- MPU401 is experimental, It doesn't work perfectly.
+ Joystick/MIDI ports are not supported by this driver. If your
+ motherboard has these devices, use the ns558 or snd-mpu401
+ modules, respectively.
The ac97_quirk option is used to enable/override the workaround
for specific devices. Some hardware have swapped output pins
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-mpu401
-----------------
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
Module supports autoprobe and multiple chips (max 8).
but some doesn't have ISA PnP. You'll need to speicfy 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: 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*
Note: for the MPU401 on VIA823x, use snd-mpu401 driver
additonally. The mpu_port option is for VIA686 chips only.
+ Module snd-via82xx-modem
+ ------------------------
+
+ Module for VIA82xx AC97 modem
+
+ ac97_clock - AC'97 codec clock base (default 48000Hz)
+
+ Module supports up to 8 cards.
+
Module snd-virmidi
------------------
Module supports up to 8 cards.
- For loading the firmware, use vxloader utility in alsa-tools
- and alsa-firmware packages. You can load the firmware automatically
- by adding the following to /etc/modprobe.conf
+ 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
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.
- For loading the firmware, use vxloader utility in alsa-tools
- and alsa-firmware packages.
+ 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.
The irq_mask and irq_list are provided to avoid allocation of
specific IRQs. Usually you don't need to specify them.
To activate the driver via the card manager, you'll need to set
up /etc/pcmcia/vxp440.conf. See the sound/pcmcia/vx/vxp440.c.
- For loading the firmware, use vxloader utility in alsa-tools
- and alsa-firmware packages.
+ 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.
The irq_mask and irq_list are provided to avoid allocation of
specific IRQs. Usually you don't need to specify them.
ALSA PCM devices to OSS devices mapping
=======================================
-/dev/snd/pcmC0D0 -> /dev/audio0 (/dev/audio) -> minor 4
-/dev/snd/pcmC0D0 -> /dev/dsp0 (/dev/dsp) -> minor 3
-/dev/snd/pcmC0D1 -> /dev/adsp0 (/dev/adsp) -> minor 12
-/dev/snd/pcmC1D0 -> /dev/audio1 -> minor 4+16 = 20
-/dev/snd/pcmC1D0 -> /dev/dsp1 -> minor 3+16 = 19
-/dev/snd/pcmC1D1 -> /dev/adsp1 -> minor 12+16 = 28
-/dev/snd/pcmC2D0 -> /dev/audio2 -> minor 4+32 = 36
-/dev/snd/pcmC2D0 -> /dev/dsp2 -> minor 3+32 = 39
-/dev/snd/pcmC2D1 -> /dev/adsp2 -> minor 12+32 = 44
-
-The first number from /dev/snd/pcmC{X}D{Y} expression means soundcard number
-and second means device number.
+/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
+soundcard 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.
git://git.onelab.eu / linux-2.6.git / blobdiff