snd_pcm_lib_preallocate_free_for_all(9) [centos man page]
SND_PCM_LIB_PREALLOC(9) PCM API SND_PCM_LIB_PREALLOC(9)NAME
snd_pcm_lib_preallocate_free_for_all - release all pre-allocated buffers on the pcm
SYNOPSIS
int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm * pcm);
ARGUMENTS
pcm
the pcm instance
DESCRIPTION
Releases all the pre-allocated buffers on the given pcm.
RETURN
Zero if successful, or a negative error code on failure.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SND_PCM_LIB_PREALLOC(9)
Check Out this Related Man Page
AOSS(1) General Commands Manual AOSS(1)NAME
aoss - Wrapper script to facilitate use of the ALSA OSS compatibility library.
SYNOPSIS
aoss osscommand [arguments]
DESCRIPTION
aoss is a simple wrapper script which facilitates the use of the ALSA OSS compatibility library. It just sets the appropriate LD_PRELOAD
path and then runs the command.
This is useful in cases where routing settings (which can be made in your .asoundrc file) need to be applied to commands that use the OSS
API.
Examples of asoundrc configuration:
pcm.dsp0 { type plug slave.pcm "hw:0,0" }
or
pcm.dsp0 { type plug slave.pcm "dmix" }
In the above configuration examples, the pcm.dsp0 definition is used to wrap calls do /dev/dsp0. You can also wrap usage of /dev/dsp1,
/dev/dsp2, etc. by defining pcm.dsp1, pcm.dsp2, etc..
The PCM name to open can be given explicitly via ALSA_OSS_PCM_DEVICE environment variable, too. This overrides the default dsp0, etc.
Note on mmap: aoss mmap support might be buggy. Your results may vary when trying to use an application that uses mmap'ing to access the
OSS device files.
Arguments
osscommand
A command that uses the OSS API
arguments
The appropriate arguments and options for the OSS command.
AUTHORS
The OSS compatibility library is by Abramo Bagnara <abramo@alsa-project.org>. The aoss script and this document are by James Tappin
<james@xena.uklinux.net>.
3 October 2001 AOSS(1)
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