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.