NAME
crl
-
VAX-8600 console
RL02
interface
DESCRIPTION
This is a simple interface to the
DEC
RL02
disk unit which is part of the console
subsystem on the
VAX-8600
and 8650.
Access is given to the entire
RL02
disk; the pack format is the same
as that of
RL02
disks on other controllers.
As on other
VAX
console media, transfers are done a word at a time
using privileged registers (i.e., slowly).
All
I/O
is raw; the seek addresses in raw transfers should be a multiple
of 512 bytes and a multiple of 512 bytes should be transferred,
as in other
``raw''
disk interfaces.
(Although the sector size is actually 256 bytes, the driver allows
operations only on 512-byte boundaries.)
FILES
/dev/crl
-
SEE ALSO
arff(8)
HISTORY
The
crl
driver appeared in
4.3BSD.