adsp_map - PCM device number maps assigned to the 2st OSS device.
- Default: 1
nonblock_open
- - Don't block opening busy PCM devices.
+ - 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
Module supports up to 8 cards. This module does not support autoprobe
thus main port must be specified!!! Other ports are optional.
+ 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 up to 8 cards.
+
Module snd-ali5451
------------------
spdif - Support SPDIF I/O
- Default: disabled
- Module supports autoprobe and multiple chips (max 8).
+ This module supports one chip and autoprobe.
The power-management is supported.
Module snd-atiixp
-----------------
- Module for ATI IXP 150/200/250 AC97 controllers.
+ Module for ATI IXP 150/200/250/400 AC97 controllers.
- ac97_clock - AC'97 clock (defalut = 48000)
+ ac97_clock - AC'97 clock (default = 48000)
ac97_quirk - AC'97 workaround for strange hardware
- See the description of intel8x0 module for details.
+ See "AC97 Quirk Option" section below.
spdif_aclink - S/PDIF transfer over AC-link (default = 1)
- This module supports up to 8 cards and autoprobe.
+ 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.
Module snd-atiixp-modem
-----------------------
Module for ATI IXP 150/200/250 AC97 modem controllers.
- Module supports up to 8 cards.
+ 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 hardware EQ hardware and SPDIF is only present in the Vortex2 and
Advantage.
- Note: Some ALSA mixer applicactions don't handle the SPDIF samplerate
+ 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).
mpu_port - 0x300,0x310,0x320,0x330, 0 = disable (default)
fm_port - 0x388 (default), 0 = disable (default)
- soft_ac3 - Sofware-conversion of raw SPDIF packets (model 033 only)
+ soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
(default = 1)
joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
CS4624/CS4630/CS4280 PCI chips.
- external_amp - Force to enable external amplifer.
+ external_amp - Force to enable external amplifier.
thinkpad - Force to enable Thinkpad's CLKRUN control.
mmap_valid - Support OSS mmap mode (default = 0).
The power-management is supported.
+ Module snd-cs5535audio
+ ----------------------
+
+ Module for multifunction CS5535 companion PCI device
+
+ Module supports up to 8 cards.
+
Module snd-dt019x
-----------------
VIA VT8251/VT8237A
model - force the model name
- position_fix - Fix DMA pointer (0 = FIFO size, 1 = none, 2 = POSBUF)
+ position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
- Module supports up to 8 cards.
+ 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)
adjusted. Appearing only when compiled with
$CONFIG_SND_DEBUG=y
+ ALC260
+ hp HP machines
+ fujitsu Fujitsu S7020
+
CMI9880
minimal 3-jack in back
min_fp 3-jack in back, 2-jack in front
allout 5-jack in back, 2-jack in front, SPDIF out
auto auto-config reading BIOS (default)
+ 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
ac97_clock - AC'97 codec clock base (0 = auto-detect)
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_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.
+ See "AC97 Quirk Option" section below.
buggy_irq - Enable workaround for buggy interrupts on some
- motherboards (default off)
+ 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)
- Module supports autoprobe and multiple bus-master chips (max 8).
+ 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
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
- between Master and Headphone, or Surround. 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 power-management is supported.
Module snd-intel8x0m
ac97_clock - AC'97 codec clock base (0 = auto-detect)
- This module supports up to 8 cards and autoprobe.
+ This module supports one card and autoprobe.
Note: The default index value of this module is -2, i.e. the first
slot is excluded.
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
- Module supports autoprobe and multiple chips (max 8).
+ This module supports one chip and autoprobe.
The power-management is supported.
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 speicfy isapnp=0
+ 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
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*
channels
[VIA8233/C, 8235, 8237 only]
ac97_quirk - AC'97 workaround for strange hardware
- See the description of intel8x0 module for details.
+ See "AC97 Quirk Option" section below.
- Module supports autoprobe and multiple bus-master chips (max 8).
+ 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
"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 implementated
+ 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.
+ subsystem vendor/device ids. See "Links and Addresses"
+ below.
Note: for the MPU401 on VIA823x, use snd-mpu401 driver
- additonally. The mpu_port option is for VIA686 chips only.
+ additionally. The mpu_port option is for VIA686 chips only.
Module snd-via82xx-modem
------------------------
ac97_clock - AC'97 codec clock base (default 48000Hz)
- Module supports up to 8 cards.
+ This module supports one card and autoprobe.
Note: The default index value of this module is -2, i.e. the first
slot is excluded.
Module supports up to 8 cards. The module is compiled only when
PCMCIA is supported on 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.
+ 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.
Note: the driver is build only when CONFIG_ISA is set.
+ Note2: snd-vxp440 driver is merged to snd-vxpocket driver since
+ ALSA 1.0.10.
+
Module snd-ymfpci
-----------------
Note: the driver is build only when CONFIG_ISA is set.
+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
+ - disable 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
============================
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 the same card module.
+as the same card module.
An example configuration for a single emu10k1 card is like below:
----- /etc/modprobe.conf
- 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
use.
-Links
-=====
+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
projects / cascardo / linux.git / blobdiff