NAME
opl —
Yamaha OPL2 and OPL3 FM MIDI
synthesizer driver
SYNOPSIS
opl* at cmpci? flags 1
opl* at eso?
opl* at ess?
opl* at fms?
opl0 at isa? port 0x388
opl* at sb?
opl* at sv?
opl* at wss?
opl* at yds?
opl* at ym?
midi* at opl?
DESCRIPTION
The
opl driver provides support for the Yamaha OPL2 (YM3812)
and OPL3 (YMF262) chips. The chips are FM synthesizers and are capable of
producing a wide range of sounds.
Access to the device is through the MIDI driver.
The
opl driver usually attaches to a sound card, but it can
also sit directly on the ISA bus.
If “flags 1” is specified, the
opl driver handles
left and right channels of OPL3 swapped. Use this flag if your device has such
problem.
SEE ALSO
cmpci(4),
eso(4),
ess(4),
fms(4),
isa(4),
midi(4),
sb(4),
sv(4),
wss(4),
yds(4),
ym(4)
HISTORY
The
opl device driver appeared in
NetBSD
1.4.
BUGS
The OPL3 chip is operated in OPL2 mode despite being more capable.