2001-09-23 08:41:12 +00:00
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.\"
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.\" Copyright (c) 2001
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.\" Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer as
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.\" the first lines of this file unmodified.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.Dd September 20, 2001
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.Dt PNPBIOS 4 i386
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.Os
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.Sh NAME
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.Nm pnpbios
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.Nd support for embedded devices on the motherboard
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.Sh DESCRIPTION
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The
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.Nm
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driver enumerates embedded ISA devices on the motherboard whose BIOS
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2001-11-21 17:14:56 +00:00
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supports
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.Dq "Plug and Play BIOS Specification" .
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2001-09-23 08:41:12 +00:00
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It assigns ISA bus resources (interrupt line, DMA channel, I/O ports,
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and memory region) to each device and activates it.
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.Pp
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If it cannot assign necessary resources to a device without
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causing conflict with other devices in the system,
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the device will not be activated and will be unavailable
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to programs.
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.Sh CAVEAT
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There is no explicit way to disable individual embedded devices.
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The
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.Nm
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2001-11-21 17:14:56 +00:00
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driver will find all devices reported by the
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.Dq "Plug and Play (PnP)"
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2001-09-23 08:41:12 +00:00
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BIOS and try to activate them all.
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.Pp
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There is no way to explicitly assign particular resource to a device.
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The resource assignment is fully automatic and there is
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no provision for manual override.
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.Sh SEE ALSO
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.Xr pnp 4
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.Sh STANDARDS
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.Rs
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.%A Compaq
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.%A Phenix
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.%A Intel
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2001-11-21 17:14:56 +00:00
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.%T "Plug and Play BIOS Specification Version 1.0A"
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2001-09-23 08:41:12 +00:00
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.%D May 5, 1994
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.Re
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.Pp
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.Rs
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.%A Compaq
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.%A Phenix
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.%A Intel
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2001-11-21 17:14:56 +00:00
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.%T "Plug and Play BIOS CLARIFICATION Paper for Plug and Play BIOS Specification Version 1.0A"
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2001-09-23 08:41:12 +00:00
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.%D October 6, 1994
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.Re
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Fx 4.0 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by
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.An Mike Smith .
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