CRL(4)

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.