.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 ", " owner " , " group " or " path.
+.BR name ", " symlink ", " mode " ," owner " , " group " or " path.
.TP
.BI -p " sysfs_path"
Specify the sysfs path of the device to query.
.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