ALSA Library Reference Manual

RawMIDI interface

SND_RAWMIDI_OPEN_OUTPUT
SND_RAWMIDI_OPEN_OUTPUT_APPEND
SND_RAWMIDI_OPEN_INPUT
SND_RAWMIDI_OPEN_DUPLEX
SND_RAWMIDI_OPEN_DUPLEX_APPEND
SND_RAWMIDI_OPEN_NONBLOCK