.\"     $OpenBSD: intro.4,v 1.41 2004/09/28 19:35:48 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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.\"    must display the following acknowledgement:
.\"      This product includes software developed by Jonathan Stone.
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.\"
.Dd February 29, 2004
.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 zs/zstty/zskbd(4) -compact -offset indent
.It Xr agten 4
Fujitsu AG-10e frame buffer.
.It Xr audioamd 4
AMD 79C30 obio (sun4c and SPARC Classic) audio controller.
.It Xr audiocs 4
CS4231 based audio found in some sun4c and sun4m models.
.It Xr be 4
10BaseT/100BaseTX SBus Ethernet controller.
.It Xr bwtwo 4
Black and white SBus and obio (sun4) frame buffer.
.It Xr cgeight 4
24 bit VMEbus color frame buffer.
.It Xr cgfour 4
8 bit obio (sun4 P4 bus) color graphics frame buffer.
.It Xr cgfourteen 4
24 bit MBus color frame buffer.
.It Xr cgsix 4
8 bit SBus and obio (sun4c & sun4m) color graphics frame buffer.
.It Xr cgthree 4
8 bit VMEbus, SBus, and obio (sun4m) color graphics frame buffer.
.It Xr cgtwelve 4
24 bit SBus color frame buffer.
.It Xr cgtwo 4
8 bit VMEbus color frame buffer.
.It Xr clock 4
Realtime clock.
.It Xr daadio 4
MATRIX MD-DAADIO digital/analog and analog/digital parallel i/o board.
.It Xr esp 4
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 Xr fd 4
Intel 82072 obio (sun4c) or Intel 82077 obio (sun4m)
floppy disk drive controller.
.It Xr fga 4
Force FGA5000 SBus/VME bridge.
.It Xr hme 4
SBus HME Ethernet controllers (SunSwift) and SBus QuadFastEthernet controllers.
.It Xr ie 4
Intel 82586 Ethernet controller (Sun 4/100 and 4/200).
.It Xr isp 4
Qlogic ISP SBus SCSI controller.
.It Xr le/lebuffer 4
AMD 7990 LANCE Ethernet controller (Sun 4/300, sun4c, sun4m, SBus).
.It Xr led 4
Diagnostic LED display on sun4 and sun4m (4/600) machines.
.It Xr magma 4
Magma serial/parallel communication boards.
.It Xr mgx 4
.Tn Southland Media Systems
MGX and MGXPlus frame buffers.
.It Xr openprom 4
.Tn Sun
Open boot PROM (what became IEEE 1275) configuration driver.
.It Xr pninek 4
Weitek Power9000 frame buffer found on Tadpole SPARCbook 3.
.It Xr pnozz 4
Weitek Power9100 frame buffer found on Tadpole SPARCbook 3GS, 3GX, 3TX and 3XP.
.It Xr presto 4
Prestoserve NVRAM.
.It Xr rfx 4
Vitec/Connectware/AP&D
.Tn RasterFlex
framebuffer series.
.It Xr qe 4
Quad 10BaseT SBus Ethernet controller.
.It Xr qec 4
Supported as a carrier for the
.Nm be
or
.Nm qe
Ethernet controllers.
.It Xr scf 4
Force CPU-5 system configuration registers.
.It Xr si 4
NCR5380 "SCSI-2" VMEbus (Sun 4/200, Sun 4/400) SCSI controller.
.It Xr spif 4
.Tn Sun
SUNW,spif serial/parallel communication boards.
.It Xr sw 4
NCR5380 obio (Sun 4/100) "SCSI Weird" SCSI controller.
.It Xr tctrl 4
Tadpole microcontroller interface.
.It Xr tcx 4
8 or 24 bit SBus color graphics frame buffer.
.It Xr timer 4 
Onboard system timer.
.It Xr tvtwo 4
Parallax XVideo and PowerVideo 24 bit SBus color frame buffer.
.It Xr vigra 4
8 bit SBus color framebuffer with VGA-compatible modes and connector.
.It Xr xbox 4
SBus Expansion Subsystem.
.It Xr xd 4
Xylogics 753/7053 VMEbus SMD disk controller.
.It Xr xy 4
Xylogics 450/451 VMEbus SMD disk controller.
.It Xr zs/zstty/zskbd 4
Zilog 8530 serial controller (and serial keyboards).
.It Xr zx 4
24 bit accelerated SBus color frame buffer.
.El
.Sh SEE ALSO
.Xr autoconf 4 ,
.Xr config 8
.Sh HISTORY
The
sparc
.Nm
first appeared in
.Ox 2.3 .