OSSAUDIO(3) BSD Library Functions Manual OSSAUDIO(3)
NAME
ossaudio -- OSS 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
audio(4), midi(4)
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.
BSD
February 3, 2009 BSD