NAME

       sbp — Serial Bus Protocol 2 (SBP-2) Mass Storage Devices driver

SYNOPSIS

       kldload firewire
       kldload cam
       kldload sbp

       or

       device sbp
       device firewire
       device scbus
       device da
       device cd
       device pass

DESCRIPTION

       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 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 “fwcontrol -r” several times or
       set hw.firewire.hold_count=0 by sysctl(8).

       Some (broken) HDDs do not work well with tagged queuing.  If you have  problems  with  such  drives,  try
       “camcontrol [device id] tags -N 1” to disable tagged queuing.

SEE ALSO

       cam(4), firewire(4), camcontrol(8), fwcontrol(8), kldload(8), sysctl(8)

AUTHORS

       The sbp driver was written by Katsushi Kobayashi and Hidetoshi Shimokawa.

       This manual page was written by Katsushi Kobayashi.

Debian                                          February 8, 2012                                          SBP(4)