csio_encode_visit(3) on FreeBSD

The text 2b57b54cba44, as FreeBSD 4.7-RELEASE, FreeBSD 4.6.2-RELEASE, FreeBSD 4.6-RELEASE, FreeBSD 4.5-RELEASE shipped it.

CAM user library SCSI buffer parsing routines

csio_encode_visit(3) on FreeBSD now