-.SH "OPTIONS"
-.B udev
-normally is called by
-.B hotplug
-with the subsystem as argument and various environment variables set.
-.br
-It may also called with the following 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.
-Valid types are:
-.BR name ", " symlink ", " 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 -d
-Dump the whole database.
-.TP
-.B -h
-Print help text.