1 .\" $NetBSD: intro.4,v 1.2 2004/03/13 19:54:32 bjh21 Exp $
3 .\" Copyright (c) 1995 Mark Brinicombe
4 .\" Copyright (c) 1994 Christopher G. Demetriou
5 .\" All rights reserved.
7 .\" Redistribution and use in source and binary forms, with or without
8 .\" modification, are permitted provided that the following conditions
10 .\" 1. Redistributions of source code must retain the above copyright
11 .\" notice, this list of conditions and the following disclaimer.
12 .\" 2. Redistributions in binary form must reproduce the above copyright
13 .\" notice, this list of conditions and the following disclaimer in the
14 .\" documentation and/or other materials provided with the distribution.
15 .\" 3. All advertising materials mentioning features or use of this software
16 .\" must display the following acknowledgement:
17 .\" This product includes software developed by Christopher G. Demetriou.
18 .\" 4. The name of the author may not be used to endorse or promote products
19 .\" derived from this software without specific prior written permission
21 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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23 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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26 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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30 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 .Nd introduction to acorn32 special files and hardware support
39 This section describes the special files, related driver functions,
40 and networking support
41 available in the system.
42 In this part of the manual, the
45 each configurable device gives a sample specification
46 for use in constructing a system description for the
51 section lists messages which may appear on the console
52 and/or in the system error log
54 due to errors in device operation;
59 This section contains both devices
60 which may be configured into the system
61 and network related information.
62 The networking support is introduced in
65 This section describes the hardware supported on the acorn32
67 Software support for these devices comes in two forms. A hardware
68 device may be supported with a character or block
70 or it may be used within the networking subsystem and have a
71 .Em network interface driver .
72 Block and character devices are accessed through files in the file
73 system of a special type; see
75 Network interfaces are indirectly accessed through the interprocess
76 communication facilities provided by the system; see
79 A hardware device is identified to the system at configuration time
80 and the appropriate device or network interface driver is then compiled
81 into the system. When the resultant system is booted, the
82 autoconfiguration facilities in the system probe for the device
83 and, if found, enable the software support for it.
84 If a device does not respond at autoconfiguration
85 time it is not accessible at any time afterwards.
86 To enable a device which did not autoconfigure,
87 the system must be rebooted.
89 The autoconfiguration system is described in
91 A list of the supported devices is given below.
96 The devices listed below are supported in this incarnation of
97 the system. Devices are indicated by their functional interface.
98 Not all supported devices are listed.
100 .Bl -tag -width speaker -offset indent -compact
102 VIDC20 device interface
104 NS8250-, NS16450-, and NS16550-based asynchronous serial
105 communications device interface
107 Ether3/Ether5 podule device interface.
109 EtherB network slot device interface.
111 EtherH network slot device interface.
113 Ether1 podule device interface.
115 Parallel port device interface
117 Main memory interface
119 Standard Internal RiscPC IDE device interface
121 Standard Internal RiscPC floppy device interface
123 Acorn SCSI I card device interface
125 Cumana SCSI II card device interface
127 Powertec SCSI II card device interface
129 Oak SCSI I card device interface