|CH(4)||Device Drivers Manual||CH(4)|
ch? at scsibus?
chdriver provides support for SCSI juke boxes. It allows many slots of media to be multiplexed between a number of drives.
A SCSI adapter and a logical scsibus must also be separately configured into the system before a SCSI changer can be configured.
As the SCSI adapter is probed during boot, the SCSI bus is scanned
for devices. Any devices found which answer as “Changer” type
devices will be “attached” to the
driver. The first device found will be attached as ch0 and
the next ch1, etc. It is also possible to specify what
ch unit a device should come on-line as; refer to
scsi(4) for details on kernel
chdriver appeared in 386BSD 0.1.
|October 6, 2011||OpenBSD-5.7|