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.TH UDEVINFO 8 "October 2003" "" "Linux Administrator's Manual"
.SH NAME
udevinfo \- retrieve information from udev
.SH SYNOPSIS
.B udevinfo
.RI "[-q " query_type " -p " sysfs_path "] [-drVh]"
.SH "DESCRIPTION"
.B udevinfo
allows users to query the udev database for information on any of the devices
currently present in the system. It also provides a way to query any device
in the sysfs tree to help in creating
.B udev
rule files.
.SH "OPTIONS"
.TP
.B -V
Print the version information.
.TP
.B -r
Print the the
.B udev_root
directory. When used in conjunction with a query for the node name, the
.B udev_root
will be prepended.
.TP
.BI -q " query_type"
Query the database for specified value of a created device node.
.RB Needs " -p " or " -n " specified.
.br
Valid types are:
.BR name ", " symlink ", " mode " ," owner " , " group " or " path.
.TP
.BI -p " sysfs_path"
Specify the sysfs path of the device to query.
.TP
.BI -n " name"
Specify the name of the node for the device to query.
.TP
.B -a
Print all
.BI SYSFS_ filename
attributes along the device chain. Useful for for finding
unique attributes to compose a rule.
.RB Needs " -p " specified.
.TP
.B -d
Dump the whole database.
.TP
.B -h
Print help text.
.SH "FILES"
.nf
/etc/udev/* udev config files
.fi
.LP
.SH "SEE ALSO"
.BR udev (8)
.SH AUTHORS
.B udevinfo
was developed primarily by Kay Sievers <kay.sievers@vrfy.org>, with help
from others.
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