August 13, 1997 INTRO 4 sun2

### NAME

intro - introduction to sun2 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 on the Sun2 platform. 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), cd(4), sd(4), ss(4), st(4)

### SUPPORTED SYSTEMS

The following Sun2 system architectures and models are supported:

sun2
  Sun2 systems: (MC68010)
  Sun 2/120, 2/170 (10 MHz)

### 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.

bwtwo
  black and white obio frame buffer

ie
  Intel 82586 Ethernet controller (Sun 2/120, 2/170)

ec
  3Com 3c400 Multibus Ethernet controller (Sun 2/120, 2/170)

kbd
  Sun type 2, type 3, type 4, and type 5 keyboards (on zstty)

ms
  Sun mouse (on zstty)

sc
  Sun "SCSI-2" Multibus SCSI controller

zs
  Zilog 8530 serial controller

### HISTORY

This sun2 intro appeared in NetBSD1.6. Large chunks of text carefully recycled (shamelessly appropriated) from NetBSD/sun3 intro(4).