sbp -- Serial Bus Protocol 2 (SBP-2) Mass Storage Devices driver
The sbp driver provides support for SBP-2 devices that attach to the
FireWire (IEEE 1394) port. It should work with SBP-2 devices which CAM
layer supports, for example, HDD, CDROM drive and DVD drive.
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 probe 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 ``fwcontrol
-r'' several times.
Some (broken) HDD's don't work well with tagged queuing. If you have
problem with such drives, try ``camcontrol [device id] tags -N 1'' to
disable tagged queuing.
cam(4), firewire(4), camcontrol(8), fwcontrol(8), kldload(8), sysctl(8)
The sbp driver was written by Katsushi Kobayashi and Hidetoshi Shimokawa.
This manual page was written by Katsushi Kobayashi.
FreeBSD 5.2.1 May 20, 2002 FreeBSD 5.2.1 [ Back ]