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Start an audio driver
|
You must be root to start this manager. |
io-audio [-d driver [driver_options]] [-o opt[,opt[,opt]]]
[v[v]...]
Neutrino
- -d driver [driver_options]
- Load the specified driver and pass it the given
driver_options.
For information on the drivers and their syntax and options,
see the deva-* entries:
- -o global_options
- Global options. The global_options variable can be any of the following:
- config_write_delay=time
The time in seconds after the last change before soundcard
settings are written to disk, (a value of -1 prevents the settings
from ever being written).
- max_dma_buf_size=size
The maximum size, in kilobytes, for the DMA buffer.
- disable_sw_mixer
On cards that have only a single channel in hardware, do not use
software techniques to increase the maximum number of playing channels.
|
See the list of shared objects (below) for details about local options for specific drivers. |
- -v
- Increase the level of verbose output.
The io-audio manager provides support for dynamically loaded
audio-driver modules. This utility enables you to load the audio drivers
specified by the -d options when you start io-audio.
|
You can start more than one driver by using multiple -d command-line options,
but don't try to start more than one instance of io-audio. |
Once io-audio has started, you can dynamically load and
unload drivers using the mount and umount commands. E.g. this command:
io-audio -dvortex -daudiopci &
gives the same result as this sequence:
io-audio &
mount -T io-audio vortex
mount -T io-audio audiopci
|
When searching for shared objects, the io-audio manager uses the
LD_LIBRARY_PATH environment variable. |
To unload a module, use a command like this:
umount /dev/snd/controlC0
Provide support for Aureal Vortex sound card:
io-audio -vv -d vortex &
The io-audio command can load the following shared objects:
- deva-ctrl-4dwave.so
- Sound driver for the Trident 4DWave!.
- deva-ctrl-audiopci.so
- Sound driver for the AudioPCI chip family.
- deva-ctrl-cs4281.so
- Sound driver for the CS4281.
- deva-ctrl-cs46xx.so
- Sound driver for the CS46xx family of chips.
- deva-ctrl-ess1938.so
- Sound driver for the ESS1938.
- deva-ctrl-geode.so
- Sound driver for the National Semiconductor Geode family of chips.
- deva-ctrl-i8x0.so
- Sound driver for the Intel 8X0.
- deva-ctrl-nmg6.so
- Sound driver for the Neomagic 6 family of chips.
- deva-ctrl-via686.so
- Sound driver for the VIA686.
- deva-ctrl-vortex.so
- Sound driver for the Vortex.
- deva-ctrl-ymfds1.so
- Sound driver for the Yamaha DS1.
- deva-mixer-ac97.so
- Mixer DLL for the AC97 codec.
- deva-ak4531.so
- Mixer DLL for the AK4531 codec.
- deva-util-restore.so
- Shared object used to restore an audio driver's state.
Connecting Hardware
in the Neutrino User's Guide
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