NAME
intro
- introduction to special files and hardware support
DESCRIPTION
This section describes the special files, related driver functions,
and networking support available in the system.
In this part of the manual, the
SYNOPSIS
section of each configurable device gives a sample specification
for use in constructing a system description for the
config(1)
program.
The
DIAGNOSTICS
section lists messages which may appear on the console
and/or in the system error log
/var/log/messages
due to errors in device operation; see
syslogd(8)
for more information.
This section contains both devices which may be configured into
the system and network related information.
The networking support is introduced in
netintro(4).
DEVICE SUPPORT
This section describes the hardware supported by
NetBSD/arc.
Software support for these devices comes in two forms.
A hardware device may be supported with a character or block
device driver,
or it may be used within the networking subsystem and have a
network interface driver.
Block and character devices are accessed through files in the file
system of a special type; see
mknod(8).
Network interfaces are indirectly accessed through the interprocess
communication facilities provided by the system; see
socket(2).
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 must be rebooted.
The autoconfiguration system is described in
autoconf(4).
A list of the supported devices is given below.
SEE ALSO
config(1),
autoconf(4)
HARDWARE
NetBSD/arc
supports a variety of systems conforming to the ARC machine
specification.
The following systems are supported:
- Acer PICA
-
- DESKstation rPC44
-
- DESKstation Tyne
-
- MIPS Magnum 4000
-
- NEC Express 5800/230 PCI R4K
-
- NEC Express 5800/240 EISA R4K
-
- NEC Express RISCserver
-
- NEC ImageRISCstation
-
- NEC RISCserver 2200
-
- NEC RISCstation 2200 EISA
-
- NEC RISCstation 2200 PCI
-
- NEC RISCstation 2250
-
LIST OF DEVICES
The devices listed below are supported in this incarnation of the
system.
Devices are indicated by their functional interface.
Not all supported devices are listed.
- arcsisabr
-
DESKstation rPC44 ISA host bridge
- jazzio
-
Jazz internal bus host bridge
- jazzisabr
-
Jazz ISA/EISA bus bridge
- necpb
-
NEC RISCstation PCI host bridge
- tyneisabr
-
DESKstation Tyne ISA host bridge
The following devices on the Jazz internal bus are supported.
- asc
-
NCR 53c9x-based SCSI interface
- com
-
NS16550-based serial communications interface
- fdc
-
Floppy disk controller
- lpt
-
Parallel port
- mcclock
-
DS1287 real-time clock
- oosiop
-
Symbios/NCR 53c700-based SCSI interface
- osiop
-
Symbios/NCR 53c710-based SCSI interface
- pckbc
-
PC keyboard controller
- sn
-
SONIC Ethernet
- timer
-
Interval timer
- vga
-
VGA graphics
PCI devices are supported through the
pci(4)
bus and associated device drivers.
ISA devices are supported through the
isa(4)
bus and associated device drivers.
Console devices using ISA, Jazzio, or PCI video adaptors and standard AT
or PS/2 keyboards are supported by the machine independent
wscons(4)
console driver.
UNSUPPORTED DEVICES
The following devices are not supported, due to unavailability of
either documentation or sample hardware:
- AD1848 audio on Jazzio
-
- EISA devices
-
- VXL framebuffer on MIPS Magnum and RISCstation 2200 EISA
-
HISTORY
This
arc
intro
appeared in
NetBSD2.0.
BUGS
DESKstation rPC44 and Tyne support is currently broken.