yds(4) [netbsd man page]
YDS(4) BSD Kernel Interfaces Manual YDS(4) NAME
yds -- Yamaha DS-1 series PCI audio controller device driver SYNOPSIS
yds* at pci? dev ? function ? audio* at audiobus? mpu* at yds? opl* at yds? DESCRIPTION
The yds device driver supports built-in sound devices and sound cards based on Yamaha YMF724/740/744/754 PCI audio controller chip, also known as DS-1 series. SEE ALSO
ac97(4), audio(4), mpu(4), opl(4), pci(4) HISTORY
The yds device driver appeared in NetBSD 1.5.1. BUGS
The game port is not supported. The volume of the OPL part is fixed. BSD
June 22, 2005 BSD
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OPL(4) BSD Kernel Interfaces Manual OPL(4) 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 pro- ducing 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. BSD
January 3, 2009 BSD