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NAME    [Toc]    [Back]

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

SYNOPSIS    [Toc]    [Back]

     kldload firewire
     kldload cam
     kldload sbp


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

DESCRIPTION    [Toc]    [Back]

     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.

SEE ALSO    [Toc]    [Back]

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

AUTHORS    [Toc]    [Back]

     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
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