intro(4)
NAME
intro − introduction to special files and hardware support
DESCRIPTION
Section four describes the special files, related driver functions, and networking support available in the system. In this part of the manual, the SYNTAX heading of each configurable device gives a sample specification for use in constructing a system description for the config() program. The DIAGNOSTICS heading lists messages which may appear on the console and in the system error log file /usr/adm/syserr/syserr.<hostname> due to errors in device operation.
This section four area contains descriptions of both configurable devices, “4” entries, and network related “device” information, “4n”, “4p”, and “4f” entries; The networking support is introduced in intro(.). 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".
The devices listed below have fixed input/output space CSR addresses and interrupt vector addresses. There are no address switches or jumpers that need to be set up by the customer or Field Service.
The floppy and hard disk special file names are based on the rx or rd names rather than the ra name used for disks on other MicroVAX processors. The /dev/MAKEDEV script also uses rx and rd instead of ra. For example,
# cd /dev
# MAKEDEV rd0 rx2
These command lines make the special files for hard disk drive 0 and floppy drive 2. The special files would have names like:
/dev/rx2a, /dev/rrx2a, /dev/rrx2c, /dev/rx2c,
/dev/rd0a, /dev/rrd0a, /dev/rd0g, /dev/rrd0g, (etc.)
NOTE
The installation procedure creates these files automatically.
DEVICE NAMES
VAXstation 2000 and MicroVAX 2000 Device Names:
sdc Disk controller plus 3 slaves:
rd0: DUA0 (hard disk in system box)
rd1: DUA1 (hard disk in expansion box)
rx2: DUA2 (floppy disk in system box)
se ESA0: Thin wire Ethernet interface
sg Color graphics interface
VR290 19-inch monitor
sh MicroVAX 2020 serial line expansion
sm Monochrome bitmapped graphics interface
VR260 19-inch monitor
ss Basic 4 async line SLU:
VAXstation 2000: keyboard, mouse, EIA port, printer port
MicroVAX 2000: console, 2 additional terminals, EIA port
stc TZK50 cartridge tape controller plus 1 slave:
st0: MUA0 (TK50 in expander box)
FILES
/dev/*