MirBSD manpage: opl(4)
OPL(4) BSD Programmer's Manual OPL(4)
opl - Yamaha OPL2 and OPL3 FM synthesizer driver
opl* at eso?
opl* at ess?
opl0 at isa? port 0x388
opl* at sb?
opl* at yds?
midi* at opl?
The opl driver provides support for the Yamaha OPL2 (YM3812) and OPL3
(YMF262) chips. The chips are FM synthesizer and are capable of producing
a wide range of (mostly awful) sounds.
Access to the device is done through the MIDI driver.
The opl driver usually attaches to a sound card, but it can also sit
directly on the ISA bus.
eso(4), ess(4), isa(4), midi(4), sb(4), yds(4)
The opl device driver first appeared in NetBSD 1.4.
MirBSD #10-current August 18, 1998 1