opl(4) [netbsd man page]

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

ESO(4)							   BSD Kernel Interfaces Manual 						    ESO(4)

NAME

     eso -- ESS Technology Solo-1 PCI AudioDrive audio device driver

SYNOPSIS

     eso*   at pci? dev ? function ?
     audio* at audiobus?
     joy*   at eso?
     mpu*   at eso?
     opl*   at eso?

DESCRIPTION

     The eso device driver supports sound cards based on ESS Technology Solo-1 PCI AudioDrive chips (ES1938 and ES1946), e.g. the TerraTec 128i
     PCI card.

DIAGNOSTICS

     eso0: can't map Audio 1 DMA into I/O space  PCI autoconfiguration did not map the first audio channel DMA controller into I/O space at a
     suitable address, and the driver was not able map it by itself.  In that case only playback functionality will be available.

     eso0: reset timeout  The device failed to acknowledge being reset.

     eso0: RDR timeout	The driver timed out reading data from a controller register.

     eso0: WDR timeout	The driver timed out waiting to send a command or writing to a controller register.

SEE ALSO

     audio(4), joy(4), mpu(4), opl(4), pci(4)

HISTORY

     The eso device driver appeared in NetBSD 1.5.  The on-board gameport was first supported in NetBSD 1.6.

BSD
								   June 22, 2005							       BSD