1.\" Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the acknowledgement as bellow: 14.\" 15.\" This product includes software developed by K. Kobayashi 16.\" 17.\" 4. The name of the author may not be used to endorse or promote products 18.\" derived from this software without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 22.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 23.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 24.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 26.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 28.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30.\" POSSIBILITY OF SUCH DAMAGE. 31.\" 32.Dd February 8, 2012 33.Dt SBP 4 34.Os 35.Sh NAME 36.Nm sbp 37.Nd Serial Bus Protocol 2 (SBP-2) Mass Storage Devices driver 38.Sh SYNOPSIS 39.Cd "kldload firewire" 40.Cd "kldload cam" 41.Cd "kldload sbp" 42.Pp 43or 44.Pp 45.Cd "device sbp" 46.Cd "device firewire" 47.Cd "device scbus" 48.Cd "device da" 49.Cd "device cd" 50.Cd "device pass" 51.Sh DESCRIPTION 52The 53.Nm 54driver provides support for SBP-2 devices that attach to the FireWire 55(IEEE 1394) port. 56It should work with SBP-2 devices which the CAM layer supports, for example, 57HDDs, CDROM drives and DVD drives. 58.Pp 59Some users familiar with 60.Xr umass 4 61might wonder why the device is not detached at the CAM layer when the device 62is unplugged. 63It is detached only if the device has not been plugged again 64during several bus resets. 65This is for preventing to detach an active file system 66even when the device cannot be probed correctly for some reason after a bus reset 67or when the device is temporary disconnected because the user changes the bus 68topology. 69If you want to force to detach the device, run 70.Dq Nm fwcontrol Fl r 71several times or set hw.firewire.hold_count=0 by 72.Xr sysctl 8 . 73.Pp 74Some (broken) HDDs do not work well with tagged queuing. 75If you have problems with such drives, try 76.Dq Nm camcontrol [device id] tags -N 1 77to disable tagged queuing. 78.Sh SEE ALSO 79.Xr cam 4 , 80.Xr firewire 4 , 81.Xr camcontrol 8 , 82.Xr fwcontrol 8 , 83.Xr kldload 8 , 84.Xr sysctl 8 85.Sh AUTHORS 86.An -nosplit 87The 88.Nm 89driver was written by 90.An Katsushi Kobayashi 91and 92.An Hidetoshi Shimokawa . 93.Pp 94This manual page was written by 95.An Katsushi Kobayashi . 96