NAME
opl
- Yamaha OPL2 and OPL3 FM MIDI synthesizer driver
SYNOPSIS
opl* at cmpci? flags 1
opl* at esl?
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),
esl(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
NetBSD1.4.
BUGS
The OPL3 chip is operated in OPL2 mode despite being more capable.