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

NAME
     intro - introduction to special files and hardware support

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 SYNOPSIS section of each configurable device gives a
     sample specification for use in constructing a system description for the
     config(8) program.  The DIAGNOSTICS section lists messages which may ap-
     pear 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).

DEVICE SUPPORT
     This section describes the hardware supported on the Amiga. 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.

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.

           afsc    A4091 low level SCSI adapter interface.
           ahsc    A3000 low level SCSI adapter interface.
           atzsc   A2091 low level SCSI adapter interface.
           ed      DP8390-based ethernet interface.
           es      SMC91C90-based ethernet interface.
           fdc     Floppy disk controller device.
           fd      Floppy disk device.
           grf     Custom Chips/Retina/Retina ZIII frame buffer.
           gtsc    GVP low level SCSI adapter interface.
           gvpbus  GVP custom bus.
           kbd     Amiga Keyboard device.
           kmem    kernel virtual memory.
           ite     Amiga Internal Terminal Emulator.
           ivsc    IVS low level SCSI adapter interface.
           le      AMD 7990 Lance-based ethernet interface.
           mfcs    MultiFaceCard II/II serial interface.
           mgnsc   Magnum 40 low level SCSI adapter interface.
           otgsc   12 Gauge low level SCSI adapter interface.
           par     8520 built-in parallel interface.


           ser     8520 built-in serial interface.
           wesc    Warp Engine low level SCSI adapter interface.
           wstsc   Wordsync II low level SCSI adapter interface.
           zssc    Zeus low level SCSI adapter interface.
           zbus    Amiga Zorro II/III bus.

SEE ALSO
     autoconf(4), config(8)

HISTORY
     The Amiga intro first appeared in NetBSD 1.0A.

OpenBSD 3.0                     August 30, 1994                              2
