All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
must display the acknowledgement as bellow:
This product includes software developed by K. Kobayashi
4. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
$FreeBSD$
.Dd February 8, 2012 .Dt SBP 4 .Os .Sh NAME .Nm sbp .Nd Serial Bus Protocol 2 (SBP-2) Mass Storage Devices driver .Sh SYNOPSIS .Cd "kldload firewire" .Cd "kldload cam" .Cd "kldload sbp"
p or
p .Cd "device sbp" .Cd "device firewire" .Cd "device scbus" .Cd "device da" .Cd "device cd" .Cd "device pass" .Sh DESCRIPTION The .Nm 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.
p Some users familiar with .Xr 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 .Dq Nm fwcontrol Fl r several times or set hw.firewire.hold_count=0 by .Xr sysctl 8 .
p Some (broken) HDDs do not work well with tagged queuing. If you have problems with such drives, try .Dq Nm camcontrol [device id] tags -N 1 to disable tagged queuing. .Sh SEE ALSO .Xr cam 4 , .Xr firewire 4 , .Xr camcontrol 8 , .Xr fwcontrol 8 , .Xr kldload 8 , .Xr sysctl 8 .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Katsushi Kobayashi and .An Hidetoshi Shimokawa .
p This manual page was written by .An Katsushi Kobayashi .