SEQUENCER(4) OpenBSD Programmer's Manual SEQUENCER(4)NAME
sequencer - OSS-compatible MIDI sequencer device
SYNOPSIS
pseudo-device sequencer [count]
#include <sys/types.h>
#include <sys/midiio.h>
DESCRIPTION
The sequencer device provides an event-oriented interface simultaneously
to all MIDI ports. Events sent to or received from this device not only
contain the actual MIDI events, but also timing information. The kernel
will make sure that data is sent to the physical device at the indicated
time. The sequencer device uses the midi(4) devices internally and they
are unavailable when used by the sequencer device.
The API for the sequencer device is binary compatible with the OSS
sequencer interface.
FILES
/dev/music new sequencer device using 8-byte events
/dev/sequencer old sequencer device using 4-byte events
SEE ALSOmidiplay(1), ioctl(2), ossaudio(3), midi(4)HISTORY
The sequencer driver first appeared in OpenBSD 2.5.
AUTHORS
The sequencer driver was written by Lennart Augustsson.
OpenBSD 4.9 June 26, 2008 OpenBSD 4.9