UDEVINFO(8)                        Linux Administrator's Manual                       UDEVINFO(8)



NAME
       udevinfo - retrieve information from udev

SYNOPSIS
       udevinfo [-q query_type -p sysfs_path] [-drVh]

DESCRIPTION
       udevinfo  allows  users to query the udev database for information on any device currently
       present on the system.  It also provides a way to query any device in the  sysfs  tree  to
       help creating udev rules.

OPTIONS
       -V     Print the version information.

       -r     Print  the  udev_root directory. When used in conjunction with a query for the node
              name, the udev_root will be prepended.

       -q query_type
              Query the database for specified value of a created device node or  network  inter-
              face.  Needs -p or -n specified.
              Valid types are: name, symlink, mode ,owner , group , path or all.

       -p sysfs_path
              Specify the sysfs path of the device to query.

       -n name
              Specify  the  name of the node, the symlink or the network interface for the device
              to query. Partition names generated with the NAME{all_partitons} option can not  be
              queried, the main device must be used instead.

       -a     Print  all  SYSFS{filename}  attributes  along the device chain. Useful for finding
              unique attributes to compose a rule.  Needs -p specified.

       -d     Dump the whole database.

       -h     Print help text.

FILES
       /etc/udev/*  udev config files


SEE ALSO
       udev(8)

AUTHORS
       udevinfo was developed primarily by Kay Sievers  <>,  with  help  from
       others.



                                           January 2004                               UDEVINFO(8)