INTRO(4)               OpenBSD Programmer's Manual (VAX)              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.

VAX DEVICE SUPPORT
     This section describes the hardware supported on the DEC VAX-11. 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 physio(4) and 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 on either the UNIBUS (or Q-
     bus) or MASSBUS and, if found, enable the software support for it.  If a
     UNIBUS device does not respond at autoconfiguration time it is not acces-
     sible at any time afterwards.  To enable a UNIBUS device which did not
     autoconfigure, the system will have to be rebooted.  If a MASSBUS device
     comes ``on-line'' after the autoconfiguration sequence it will be dynami-
     cally autoconfigured into the running system.

     The autoconfiguration system is described in autoconf(4).  A list of the
     supported devices is given below.

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

     "Building 4.3 BSD UNIX Systems with Config", SMM, 2.

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.  If second vendor products provide functionally identical
     interfaces they should be usable with the supplied software.  Beware,
     however, that we promise the software works ONLY with the hardware
     indicated on the appropriate manual page.   Occasionally, new devices of
     a similar type may be added simply by creating appropriate table entries
     in the driver.

           acc      ACC LH/DH IMP communications interface
           ad       Data translation A/D interface
           css      DEC IMP-11A communications interface
           crl      VAX 8600, 8650 console RL02 disk
           ct       C/A/T or APS phototypesetter
           ddn      ACC ACP625 DDN Standard Mode X.25 IMP interface
           de       DEC DEUNA 10Mb/s Ethernet controller
           dh       DH-11 emulators, terminal multiplexor
           dhu      DHU-11 terminal multiplexor
           dmc      DEC DMC-11/DMR-11 point-to-point communications device
           dmf      DEC DMF-32 terminal multiplexor and parallel printer interface
           dmz      DEC DMZ-32 terminal multiplexor
           dn       DEC DN-11 autodialer interface
           dz       DZ-11 terminal multiplexor
           ec       3Com 10Mb/s Ethernet controller
           en       Xerox 3Mb/s Ethernet controller (obsolete)
           ex       Excelan 10Mb/s Ethernet controller
           fl       VAX-11/780 console floppy interface
           hdh      ACC IF-11/HDH IMP interface
           hk       RK6-11/RK06 and RK07 moving head disk
           hp       MASSBUS disk interface (with RP06, RM03, RM05, etc.)
           ht       TM03 MASSBUS tape drive interface (with TE-16, TU-45, TU-77)
           hy       DR-11B or GI-13 interface to an NSC Hyperchannel
           ik       Ikonas frame buffer graphics device interface
           il       Interlan 1010, 1010A 10Mb/s Ethernet controller
           ix       Interlan NP-100 10Mb/s Ethernet controller
           kg       KL-11/DL-11W line clock
           lp       LP-11 parallel line printer interface
           mt       TM78 MASSBUS tape drive interface
           np       Interlan NP-100 10Mb/s Ethernet controller (intelligent mode)
           pcl      DEC PCL-11 communications interface
           ps       Evans and Sutherland Picture System 2 graphics interface
           qe       DEC DEQNA Q-bus 10 Mb/s Ethernet interface
           rx       DEC RX02 floppy interface
           tm       TM-11/TE-10 tape drive interface
           tmscp    TMSCP-compatible tape controllers (e.g., TU81, TK50)
           ts       TS-11 tape drive interface
           tu       VAX-11/730 TU58 console cassette interface
           uda      DEC UDA-50 disk controller
           un       DR-11W interface to Ungermann-Bass
           up       Emulex SC-21V, SC-31 UNIBUS disk controller
           ut       UNIBUS TU-45 tape drive interface
           uu       TU58 dual cassette drive interface (DL11)
           va       Benson-Varian printer/plotter interface
           vp       Versatec printer/plotter interface
           vv       Proteon proNET 10Mb/s and 80Mb/s ring network interface

HISTORY
     The section 4 intro appeared in 4.1BSD.

OpenBSD 2.6                     March 27, 1991                               2
