June 8, 1997 INTRO 4 mac68k

### NAME

intro - introduction to mac68k 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).

### MAC68K DEVICE SUPPORT

This section describes the hardware supported on the Mac. 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 will have to 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)

### HISTORY

The Mac68k intro man page first appeared in NetBSD1.3.

### 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.

adb
  Apple Desktop Bus event interface
ae
  DP8390-based Ethernet interface
asc
  Apple Sound Chip
esp
  NCR 53C9x built-in SCSI interface
grf
  on-board and NuBus-based video interface
kmem
  kernel virtual memory
ite
  Mac68k Internal Terminal Emulator
mem
  physical memory
ncrscsi
  NCR 5380 built-in SCSI interface
sbc
  NCR 5380 built-in SCSI interface
sn
  DP83932-based Ethernet interface (SONIC)
zsc
  Zilog Z8530 built-in serial interface