1 .\" $NetBSD: pnpbios.4,v 1.11 2002/09/27 22:31:45 wiz Exp $
3 .\" Copyright (c) 1999-2002 The NetBSD Foundation, Inc.
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6 .\" This code is derived from software contributed to The NetBSD Foundation
7 .\" by Lennart Augustsson.
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30 .Dd September 27, 2002
35 .Nd introduction to PnP BIOS support
37 .Cd "pnpbios0 at mainbus?"
38 .Cd "XX* at pnpbios0 index ?"
40 .Cd options PNPBIOSVERBOSE
41 .Cd options PNPBIOSDEBUG
44 provides support for finding and attaching devices by
45 extracting information from the PnP BIOS of a machine.
48 includes the following
50 drivers, sorted by driver name:
52 .Bl -tag -width speaker -offset indent -compact
54 serial communications interface
56 ESS Technology AudioDrive family audio device driver
66 PCI IDE controllers driver
68 PC keyboard/mouse controller
70 SoundBlaster family audio device driver
72 Windows Sound System hardware driver
74 Yamaha OPL3-SA3 sound driver
100 bus provides a different way to attach devices than the real buses
105 instead of the real bus is that some machines have weird routings
106 of, e.g., interrupts. The exact information about these things can
107 be found in the BIOS, which is why the
109 bus has a better chance of succeeding with getting it right.
111 Many older BIOS implementations do not support PnP,
112 and some newer ones do not follow the standards.