INTRO(4)             OpenBSD Programmer's Manual (Mac68K)             INTRO(4)

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 specifi-
     cation for use in constructing a system description for the config(8)
     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 sys-
     tem and network related information.  The networking support is intro-
     duced in netintro(4).

MAC68K DEVICE SUPPORT
     This section describes the hardware supported on the Mac. Software sup-
     port for these devices comes in two forms.  A hardware device may be sup-
     ported 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 spe-
     cial 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 autoconfigura-
     tion time it is not accessible at any time afterwards.  To enable a de-
     vice 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.

HISTORY
     The Mac68k intro man page first appeared in NetBSD 1.2 .

SEE ALSO
     autoconf(4), intro(4), config(8)

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

OpenBSD 2.9                      June 8, 1997                                1
