129 lines
4.5 KiB
Groff
129 lines
4.5 KiB
Groff
.\"
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.\" Copyright (c) 1996 Jonathan Stone.
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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.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Jonathan Stone.
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission
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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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.\" $NetBSD: intro.4,v 1.3 1999/04/06 20:24:43 pk Exp $
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.\"
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.Dd August 13, 1997
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.Dt INTRO 4 pc532
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.Os
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.Sh NAME
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.Nm intro
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.Nd introduction to special files and hardware support
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.Sh DESCRIPTION
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This section describes the special files, related driver functions,
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and networking support
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available in the system.
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In this part of the manual, the
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.Tn SYNOPSIS
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section of
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each configurable device gives a sample specification
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for use in constructing a system description for the
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.Xr config 8
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program.
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The
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.Tn DIAGNOSTICS
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section lists messages which may appear on the console
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and/or in the system error log
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.Pa /var/log/messages
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due to errors in device operation;
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see
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.Xr syslogd 8
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for more information.
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.Pp
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This section contains both devices which may be configured into
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the system and network related information.
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The networking support is introduced in
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.Xr netintro 4 .
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.Sh DEVICE SUPPORT
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This section describes the hardware supported on the PC532
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platform.
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Software support for these devices comes in two forms.
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A hardware device may be supported with a character or block
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.Em device driver ,
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or it may be used within the networking subsystem and have a
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.Em network interface driver .
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Block and character devices are accessed through files in the file
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system of a special type; see
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.Xr mknod 8 .
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Network interfaces are indirectly accessed through the interprocess
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communication facilities provided by the system; see
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.Xr socket 2 .
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.Pp
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A hardware device is identified to the system at configuration time
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and the appropriate device or network interface driver is then compiled
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into the system.
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When the resultant system is booted, the autoconfiguration facilities
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in the system probe for the device and, if found, enable the software
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support for it.
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If a device does not respond at autoconfiguration time it is not
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accessible at any time afterwards.
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To enable a device which did not autoconfigure, the system must be
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rebooted.
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.Pp
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The autoconfiguration system is described in
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.Xr autoconf 4 .
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A list of the supported devices is given below.
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.Sh SEE ALSO
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.Xr cd 4 ,
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.Xr sd 4 ,
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.Xr ss 4 ,
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.Xr st 4 ,
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.Xr autoconf 4 ,
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.Xr config 8 .
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.Sh SUPPORTED SYSTEMS
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The pc532 is a custom motherboard that fits in a PC/AT case,
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with a 25 MHz National Semiconductor 32532 CPU and 32381 FPU.
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There are less than 200 of these systems in the world.
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.Sh LIST OF DEVICES
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The devices listed below are supported in this incarnation of
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the system. Devices are indicated by their functional interface.
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Not all supported devices are listed.
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.Pp
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.Bl -tag -width silly
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.It lpt
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Centronics parallel port driver
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.It mem
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memory files
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.It ncr
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NCR5380/DP8490 low level SCSI interface
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.It plip
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Option for the lpt driver to allow IP over Centronics parallel ports
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.It scn
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Signetics DUART serial communications interface
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.El
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.Sh HISTORY
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This
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.Tn pc532
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.Nm intro
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appeared with
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.Nx 1.4 .
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Large chunks of text carefully recycled (shamelessly appropriated) from
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.Nx Ns Tn /pmax
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.Xr intro 4 .
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