83 lines
2.5 KiB
Groff
83 lines
2.5 KiB
Groff
.\" $Id$
|
|
.\" Copyright (c) 1996
|
|
.\" Julian Elischer <julian@freebsd.org>. 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.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
.\"
|
|
.Dd August 27, 1993
|
|
.Dt SU 4
|
|
.Os FreeBSD
|
|
.Sh NAME
|
|
.Nm su
|
|
.Nd scsi user-level driver
|
|
.Sh SYNOPSIS
|
|
.Cd "device-driver su"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm su
|
|
driver provides support for a
|
|
process to address arbitrary locations on the scsi bus. Minor
|
|
numbers are mapped 1:1 to bus:target:lun. The lowest three bits being LUN
|
|
and the next three bits being TARGET. Remaining bits are the bus number.
|
|
.Pp
|
|
A scsi adapter must also be separately configured into the system
|
|
before this driver makes sense.
|
|
.Pp
|
|
.Sh THE SU DEVICE IS NOT COMPLETED YET
|
|
.Sh KERNEL CONFIGURATION
|
|
There are no configuration parameters for the su option. It'e either there
|
|
or it's not.
|
|
|
|
.Pp
|
|
.Sh IOCTLS
|
|
The
|
|
.Nm
|
|
driver has no ioctls of it's own but rather acts as a medium for the
|
|
generic
|
|
.Xr scsi 4
|
|
ioctls. These are described in
|
|
.Em sys/scsiio.h.
|
|
|
|
|
|
.Sh FILES
|
|
.Bl -tag -width /dev/su0-0-0XXXXXXXXXXX -compact
|
|
.It Pa /dev/su[0-9]-[0-7]-[0-7]
|
|
su{x}-{y}-{z} is the su device for the device at bus x, target y, lun z
|
|
.El
|
|
.Sh DIAGNOSTICS
|
|
All
|
|
.Xr scsi 4
|
|
debug ioctls work on
|
|
.Nm
|
|
devices.
|
|
.Sh SEE ALSO
|
|
.Xr cd 4 ,
|
|
.Xr scsi 4 ,
|
|
.Xr sd 4 ,
|
|
.Xr st 4 ,
|
|
.Xr uk 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
driver appeared in 386BSD 0.1.
|