opl(4) - NetBSD Manual Pages

OPL(4)                    NetBSD Programmer's Manual                    OPL(4)


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 produc-
     ing a wide range of (mostly awful) sounds.

     Access to the device is through the MIDI driver.

     The opl driver usually attaches to a sound card, but it can also sit di-
     rectly on the ISA bus.

     If ``flags 1'' is specified, the opl driver handles left and right chan-
     nels 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 NetBSD 1.4.


BUGS

     The OPL3 chip is operated in OPL2 mode despite being more capable.

NetBSD 1.6                      August 18, 1998                              1