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108 lines
3.0 KiB
Groff
108 lines
3.0 KiB
Groff
.\" Copyright (c) 2002 by Thomas Moestl <tmm@FreeBSD.org>.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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.\" USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd October 18, 2002
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.Dt OFWDUMP 8
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.Os
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.Sh NAME
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.Nm ofwdump
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.Nd examine the Open Firmware device tree
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.Sh SYNOPSIS
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.Nm
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.Fl a
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.Op Fl p | P Ar property
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.Op Fl R | S
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.Nm
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.Op Fl p | P Ar property
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.Op Fl r
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.Op Fl R | S
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.Op Fl -
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.Ar nodes
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.Sh DESCRIPTION
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The
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.Nm
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utility is used to examine the Open Firmware device tree.
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In the first synopsis form, the complete device tree is printed; in the
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second form, only the selected
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.Ar nodes
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will be examined.
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.Pp
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The following options are available:
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.Bl -tag -width ".Fl P Ar property"
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.It Fl a
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Print the complete device tree.
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.It Fl p
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Print all available properties.
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.It Fl P Ar property
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Only print properties of the given name.
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.It Fl R
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Print properties in
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.Dq raw
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format, i.e., omit all headings and indentation and just write the
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property values unaltered to the standard output.
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This is intended to be used with the
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.Fl P
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option to extract the value of a single property.
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.It Fl S
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Print properties as strings; this is analogous to the
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.Fl R
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option, except that each property is only output to the first
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.Dv NUL
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character, and that newline is appended to each.
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.It Fl r
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Recursively print all children of the specified nodes.
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.El
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.Sh EXAMPLES
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Print the complete device tree:
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.Pp
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.Dl "ofwdump -a"
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.Pp
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Print the complete device subtree of the
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.Dq Li /pci
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node, including all available properties:
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.Pp
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.Dl "ofwdump -pr /pci"
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.Pp
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Print the
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.Dq Li compatible
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property of the
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.Dq Li /pci
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node as plain string:
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.Pp
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.Dl "ofwdump -P compatible -S /pci"
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.Sh SEE ALSO
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.Xr eeprom 8
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Fx 5.0 .
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.Sh AUTHORS
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The
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.Nm
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utility
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was written by
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.An Thomas Moestl Aq tmm@FreeBSD.org .
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