--- a/udev.rst	Sun May 22 14:57:22 2016 +0300
+++ b/udev.rst	Sun May 22 15:28:34 2016 +0300
@@ -15,15 +15,21 @@
  * http://wiki.gentoo.org/wiki/Udev
  * http://www.crashcourse.ca/wiki/index.php/Udev
 
-Record udev events.
-===================
+Record udev events
+==================
 
 This dump udev events to console::
 
   $ sudo udevadm monitor
 
-View device capability with udev compatible format.
-===================================================
+List available devices
+======================
+::
+
+  $ udevadm info --export-db
+
+View device capability with udev compatible format
+==================================================
 
 For Debian use::