Copyright (c) 1999-2001 The NetBSD Foundation, Inc.
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.Dd November 14, 1999 .Dt PNPBIOS 4 i386 .Os .Sh NAME .Nm pnpbios .Nd introduction to PnP BIOS support .Sh SYNOPSIS .Cd "pnpbios0 at mainbus?" .Cd "XX* at pnpbios0 index ?"
p .Sh INTRODUCTION .Nx provides support for finding and attaching devices by extracting information from the PnP BIOS of a machine. .Sh SUPPORTED DEVICES .Nx includes the following .Nm drivers, sorted by driver name:
p
l -tag -width speaker -offset indent -compact t com serial communications interface
t ess ESS Technology AudioDrive family audio device driver
t fdc floppy controller
t joy game controller
t lpt parallel port driver
t npx math coprocessor
t pciide PCI IDE controllers driver
t pckbc PC keyboard/mouse controller
t sb SoundBlaster family audio device driver
t wss Windows Sound System hardware driver
t ym Yamaha OPL3-SA3 sound driver
.El
p .Sh CAVEATS The .Nm bus provides a different way to attach devices than the real buses (e.g., .Xr isa 4 ) . The reason to use .Nm instead of the real bus is that some machines have weird routings of, e.g., interrupts. The exact information about these things can be found in the BIOS, which is why the .Nm bus has a better chance of succeeding with getting it right.
p Many older BIOS implementations do not support PnP, and some newer ones do not follow the standards. .Sh SEE ALSO .Xr intro 4 , .Xr com 4 , .Xr ess 4 , .Xr fdc 4 , .Xr isa 4 , .Xr joy 4 , .Xr lpt 4 , .Xr npx 4 , .Xr pci 4 , .Xr pciide 4 , .Xr pckbc 4 , .Xr sb 4 , .Xr wss 4 , .Xr ym 4 .Sh HISTORY The .Nm driver appeared in .Nx 1.5 .