controlling utility for iop(4)

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diff --git a/sbin/iopctl/iopctl.8 b/sbin/iopctl/iopctl.8
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+.\"	$OpenBSD: iopctl.8,v 1.1 2001/07/05 02:07:46 mickey Exp $
+.\"	$NetBSD: iopctl.8,v 1.4 2001/03/20 13:07:51 ad Exp $
+.\"
+.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Andrew Doran.
+.\"
+.\" 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 following acknowledgement:
+.\"        This product includes software developed by the NetBSD
+.\"        Foundation, Inc. and its contributors.
+.\" 4. Neither the name of The NetBSD Foundation nor the names of its
+.\"    contributors may be used to endorse or promote products derived
+.\"    from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 October 1, 2000
+.Dt IOPCTL 8
+.Os
+.Sh NAME
+.Nm iopctl
+.Nd a program to control IOP devices
+.Sh SYNOPSIS
+.Nm iopctl
+.Op Fl f Ar ctldev
+.Ar command
+.Op Ar tid
+.Sh DESCRIPTION
+The
+.Nm
+command can be used to interrogate and control I2O devices.
+.Pp
+The following options are available:
+.Bl -tag -width xxxxxxxxxxx
+.It Fl f Ar ctldev
+Specify the control device to use. The default is
+.Pa /dev/iop0 .
+.El
+.Pp
+The following commands are available:
+.Bl -tag -width indent
+.It reconfig
+Reconfigure the IOP: ask all bus ports to rescan their busses, and attach or
+detach devices to and from the system as necessary.
+.It showddmid Ar tid
+Retrieve and display the DDM (device driver module) identity parameter group
+from the specified target.
+.It showdevid Ar tid
+Retrieve and display the device identity parameter group from the specified
+target.
+.It showlct
+Display the driver's private copy of the logical configuration table.  This
+copy of the LCT matches the current device configuration, but is not
+necessarily the latest available version of the LCT.
+.It showstatus
+Display the current status of the IOP.
+.It showtidmap
+Display the device to TID map.
+.El
+.Sh FILES
+.Bl -tag -width /dev/iopn -compact
+.It Pa /dev/iop Ns Ar u
+control device for IOP unit
+.Ar u
+.El
+.Sh SEE ALSO
+.Xr ioctl 2 ,
+.Xr iop 4 ,
+.Xr ioprbs 4 ,
+.Xr iopsp 4 ,
+.Xr sd 4
+.Sh AUTHOR
+The
+.Nm
+command was written by
+.An Andrew Doran Aq ad@netbsd.org ,
+and ported to
+.Ox
+by
+.An Michael Shalayeff Aq mickey@openbsd.org .
+.Sh HISTORY
+The
+.Nm
+command first appeared in
+.Nx 1.6 ,
+.Ox
+support was added in
+.Ox 3.0 .