Index: head/en_US.ISO8859-1/books/handbook/virtualization/chapter.xml
===================================================================
--- head/en_US.ISO8859-1/books/handbook/virtualization/chapter.xml
+++ head/en_US.ISO8859-1/books/handbook/virtualization/chapter.xml
@@ -934,6 +934,22 @@
 
       <screen>&prompt.root; <userinput>pw groupmod operator -m <replaceable>yourusername</replaceable></userinput></screen>
 
+      <para>Then, add the following to
+       <filename>/etc/devfs.rules</filename>, or create this file if
+       it does not exist yet:</para>
+
+      <programlisting>[system=10]
+add path 'usb/*' mode 0660 group operator</programlisting>
+
+      <para>To load these new rules, add the following to
+       <filename>/etc/rc.conf</filename>:</para>
+
+      <programlisting>devfs_system_ruleset="system"</programlisting>
+
+      <para>Then, restart devfs:</para>
+
+      <screen>&prompt.root; <userinput>service devfs restart</userinput></screen>
+
       <para>Restart the login session and
 	<application>&virtualbox;</application> for these changes to
 	take effect, and create <acronym>USB</acronym> filters as