.\"     $OpenBSD: intro.4,v 1.21 2002/01/13 02:12:34 jason Exp $
.\"	$NetBSD: intro.4,v 1.5 1998/02/06 06:07:00 perry Exp $
.\"
.\" Copyright (c) 1996 Jonathan Stone.
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\"    must display the following acknowledgement:
.\"      This product includes software developed by Jonathan Stone.
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.\"
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.\"
.Dd August 13, 1997
.Dt INTRO 4 sparc
.Os
.Sh NAME
.Nm intro
.Nd introduction to special files and hardware support
.Sh DESCRIPTION
The manual pages in section 4 describe the special files, 
related driver functions, and networking support
available in the system.
In this part of the manual, the
.Tn SYNOPSIS
section of
each configurable device gives a sample specification
for use in constructing a system description for the
.Xr config 8
program.
The
.Tn DIAGNOSTICS
section lists messages which may appear on the console
and/or in the system error log
.Pa /var/log/messages
due to errors in device operation;
see
.Xr syslogd 8
for more information.
.Pp
This section contains both devices
which may be configured into the system
and network related information.
The networking support is introduced in
.Xr netintro 4 .
.Sh DEVICE SUPPORT
This section describes the hardware supported on the SPARC
platform.
Software support for these devices comes in two forms.
A hardware device may be supported with a character or block
.Em device driver ,
or it may be used within the networking subsystem and have a
.Em network interface driver .
Block and character devices are accessed through files in the file
system of a special type; see
.Xr mknod 8 .
Network interfaces are indirectly accessed through the interprocess
communication facilities provided by the system; see
.Xr socket 2 .
.Pp
A hardware device is identified to the system at configuration time
and the appropriate device or network interface driver is then compiled
into the system.
When the resultant system is booted, the autoconfiguration facilities
in the system probe for the device and, if found, enable the software
support for it.
If a device does not respond at autoconfiguration
time it is not accessible at any time afterwards.
To enable a device which did not autoconfigure,
the system will have to be rebooted.
.Pp
The autoconfiguration system is described in
.Xr autoconf 4 .
A list of the supported devices is given below.
.Sh LIST OF DEVICES
The devices listed below are supported in this incarnation of
the system.
Pseudo-devices are not listed.
Devices are indicated by their functional interface.
Not all supported devices are listed.
.Pp
.Bl -tag -width le/lebuffer -compact -offset indent
.It audioamd
AMD 79C30 obio (sun4c and SPARC Classic) audio controller.
.It audiocs
CS4231 based audio found in some sun4c and sun4m models.
.It be
10BaseT/100BaseTX SBus Ethernet controller.
.It bwtwo
black and white obio frame buffer.
.It cgeight
24 bit VMEbus color frame buffer.
.It cgfour
8 bit obio (sun4 P4 bus) color graphics frame buffer.
.It cgfourteen
24 bit SBus color frame buffer.
.It cgsix
8 bit obio (sun4c & sun4m), SBus color graphics frame buffer.
.It cgthree
8 bit VMEbus, SBus, and obio (sun4m) color graphics frame buffer.
.It cgtwo
8 bit VMEbus color frame buffer.
.It eeprom
Sun non-volatile configuration RAM driver.
.It esp
NCR53C90 ESP100 (Sun 4/300),.
.br
ESP100A (sun4c),
.br
ESP200 (sun4m) SCSI controller,
.br
FSBE/S (X1053A, part # 501-2015) Fast SCSI-2/Buffered Ethernet SBus controller.
.It fd
Intel 82072 obio (sun4c) or Intel 82077 obio (sun4m)
floppy disk drive controller.
.It fga
Force FGA5000 SBus/VME bridge.
.It hme
SBus HME Ethernet controllers (SunSwift).
.It ie
Intel 82586 Ethernet controller (Sun 4/100).
.It isp
Qlogic ISP SBus SCSI controller.
.It kbd
Sun type 2, type 3, type 4, and type 5 keyboards (on zs).
.It le/lebuffer
AMD 7990 LANCE ethernet controller (Sun 4/200, 4/300, sun4c, sun4m, SBus).
.It led
diagnostic LED display on sun4 and sun4m (4/600) machines.
.It magma
Magma serial/parallel communication boards.
.It ms
Sun mouse (on zs).
.It openprom
Sun Open boot PROM (what became IEEE 1275) configuration driver.
.It pnozz
Weitek Power9100 frame buffer found on Tadpole SPARCbook 3GS and 3GX.
.It qe
Quad 10BaseT SBus Ethernet controller.
.It qec
Supported as a carrier for the
.Nm be
or
.Nm qe
Ethernet controllers.
.It qfe
SBus QuadFastEthernet controllers.
.It si
NCR5380 "SCSI-2" VMEbus (Sun 4/200, Sun 4/400) SCSI controller.
.It spif
Sun SUNW,spif serial/parallel communication boards.
.It sw
NCR5380 obio (Sun 4/100) "SCSI Weird" SCSI controller.
.It tctrl
Tadpole microcontroller interface.
.It tcx
8 or 24 bit SBus color graphics frame buffer.
.It xbox
SBus Expansion Subsystem.
.It xd
Xylogics 753/7053 VMEbus SMD disk controller.
.It xy
Xylogics 450/451 VMEbus SMD disk controller.
.It zs
Zilog 8530 serial controller.
.El
.Sh SEE ALSO
.Xr autoconf 4 ,
.Xr config 8
.Sh HISTORY
The
sparc
.Nm
first appeared in
.Ox 2.3 .