.\" Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
.\" 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
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.\" $FreeBSD: src/share/man/man4/sbp.4,v 1.1.2.5 2003/12/25 22:51:32 brueffer Exp $
.\" $DragonFly: src/share/man/man4/sbp.4,v 1.3 2004/01/30 22:38:47 dillon Exp $
.\"
.Dd May 20, 2002
.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"
.Pp
or
.Pp
.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.
.Pp
Note that
.Xr umass 4
does not detach the device from the CAM layer when the device is unplugged.
The idea is to prevent detachment of active filesystems due to temporary
disconnects or changes in the bus topology.  You may have to run
.Dq Nm fwcontrol Fl r
several times for the system to properly detach such devices.
.Pp
Some (broken) HDDs don't 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 .
.Pp
This manual page was written by
.An Katsushi Kobayashi .