2691 lines
75 KiB
ReStructuredText
2691 lines
75 KiB
ReStructuredText
==============================================================
|
|
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.
|
|
|
|
|
|
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.
|
|
|
|
|
|
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/notes.rst 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 hd-audio/notes.rst 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.rst.
|
|
|
|
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.rst 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.rst 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 siree).
|
|
|
|
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/cards/multisound.sh 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)
|
|
autoclock
|
|
Enable auto-clock selection for UAC2 devices (default: yes)
|
|
quirk_alias
|
|
Quirk alias list, pass strings like ``0123abcd:5678beef``, which
|
|
applies the existing quirk for the device 5678:beef to a new
|
|
device 0123:abcd.
|
|
use_vmalloc
|
|
Use vmalloc() for allocations of the PCM buffers (default: yes).
|
|
For architectures with non-coherent memory like ARM or MIPS, the
|
|
mmap access may give inconsistent results with vmalloc'ed
|
|
buffers. If mmap is used on such architectures, turn off this
|
|
option, so that the DMA-coherent buffers are allocated and used
|
|
instead.
|
|
|
|
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.
|
|
|
|
NB: quirk_alias option is provided only for testing / development.
|
|
If you want to have a proper support, contact to upstream for
|
|
adding the matching quirk in the driver code statically.
|
|
|
|
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
|
|
-------------------------------
|
|
erase
|
|
erase all additional information about OSS applications
|
|
|
|
<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
|