INTRO(4)              OpenBSD Programmer's Manual (HP300)             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 HP 9000/300 and
     9000/400 series.  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).  Net-
     work interfaces are indirectly accessed through the interprocess communi-
     cation 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.

     Occasionally, new devices of a similar type may be added simply by creat-
     ing appropriate table entries in the driver; for example, new CS/80
     drives.

           apci(4)     Apollo utility chip serial communications interface
           ct(4)       CS/80 cartridge tape interface
           dca(4)      HP 98644A serial communications interface
           dcm(4)      HP 98642A serial communications multiplexer
           dio(4)      DIO/DIO-II bus
           dnkbd(4)    Apollo Domain keyboard and mouse
           dvbox(4)    HP98730 DaVinci frame buffer
           frodo(4)    Apollo Utility Chip
           gbox(4)     HP98700 Gatorbox frame buffer
           hd(4)       CS/80 disk interface
           hil(4)      introduction to HP-HIL support
           hpibbus(4)  HP-IB bus interface
           hyper(4)    HP A1096A Hyperion frame buffer
           isabr(4)    Frodo ISA bridge
           le(4)       AMD LANCE Ethernet device
           nhpib(4)    built-in 98624 and 98625 HP-IB interfaces
           ppi(4)      HP-IB printer/plotter interface
           rbox(4)     HP98720 Renaissance frame buffer
           sgc(4)      Standard Graphics Connection bus
           spc(4)      HP 98658 SCSI host adaptor driver
           sti(4)      HP Standard Text Interface
           topcat(4)   Topcat, Catseye and Kathmandu frame buffers
           tvrx(4)     HP98705 TurboVRX ``Tigershark'' frame buffer

SEE ALSO
     autoconf(4), config(8)

HISTORY
     The HP300 intro first appeared in 4.3BSD-Reno.

OpenBSD 4.7                      April 1, 2008                               2
