|Device Drivers Manual
sbp — Serial Bus
Protocol 2 (SBP-2) Mass Storage Devices driver
sbp driver provides support for SBP-2
devices that attach to the FireWire (IEEE 1394) port. It should work with
SBP-2 devices which the CAM layer supports, for example, HDDs, CDROM drives
and DVD drives.
Some users familiar with umass(4) might wonder
why the device is not detached at the CAM layer when the device is
unplugged. It is detached only if the device has not been plugged again
during several bus resets. This is for preventing to detach an active file
system even when the device cannot be probed correctly for some reason after
a bus reset or when the device is temporary disconnected because the user
changes the bus topology. If you want to force to detach the device, run
several times or set hw.firewire.hold_count=0 by
Some (broken) HDDs do not work well with tagged queuing. If you
have problems with such drives, try “
[device id] tags -N 1” to disable tagged queuing.
sbp driver was written by
Katsushi Kobayashi and Hidetoshi
This manual page was written by Katsushi Kobayashi.
|February 8, 2012