OSSAUDIO(3) Library Functions Manual OSSAUDIO(3)
NAME
ossaudioOSS audio emulation
LIBRARY
OSS Audio Emulation Library (libossaudio, -lossaudio)
SYNOPSIS
#include <soundcard.h>
DESCRIPTION
The ossaudio library provides an emulation of the OSS (Linux) audio interface.
 
Use the native interface for new programs and the emulation library only for porting programs.
Mixer Control Map
The following table summarizes the mappings from native interface device names to OSS mixer controls.
 
Native Device Name
OSS Mixer Control
*.mic
SOUND_MIXER_MIC
*.line
SOUND_MIXER_LINE
*.cd
SOUND_MIXER_CD
*.dac
SOUND_MIXER_PCM
*.aux
SOUND_MIXER_LINE1
*.record
SOUND_MIXER_IMIX
*.master
SOUND_MIXER_VOLUME
*.treble
SOUND_MIXER_TREBLE
*.bass
SOUND_MIXER_BASS
*.speaker
SOUND_MIXER_SPEAKER
*.output
SOUND_MIXER_OGAIN
*.input
SOUND_MIXER_IGAIN
*.fmsynth
SOUND_MIXER_SYNTH
*.midi
SOUND_MIXER_SYNTH
SEE ALSO
HISTORY
The ossaudio library first appeared in NetBSD 1.3.
BUGS
The emulation uses a #define for ioctl() so some obscure programs can fail to compile.
 
The emulation is incomplete.
 
The emulation only covers ioctl(), there are other differences as well. E.g., on a write that would block in non-blocking mode Linux returns EINTR whereas NetBSD 1.3 returns EAGAIN.