devd.conf question

[Wojciech Puchar]

i have such :

# $FreeBSD: src/etc/devd.conf,v 1.26.2.1 2005/09/03 22:49:22 sam Exp $
#
# Refer to devd.conf(5) and devd(8) man pages for the details on how to
# run and configure devd.
#

# NB: All regular expressions have an implicit ^$ around them.
# NB: device-name is shorthand for 'match device-name'

options {
 	# Each directory directive adds a directory the list of directories
 	# that we scan for files.  Files are read-in in the order that they
 	# are returned from readdir(3).  The rule-sets are combined to
 	# create a DFA that's used to match events to actions.
 	directory "/etc/devd";
 	directory "/usr/local/etc/devd";
 	pid-file "/var/run/devd.pid";

 	# Setup some shorthand for regex that we use later in the file.
 	#XXX Yes, these are gross -- imp
 	set scsi-controller-regex
 		"(aac|adv|adw|aha|ahb|ahc|ahd|aic|amd|amr|asr|bt|ciss|ct|dpt|\
 		esp|ida|iir|ips|isp|mlx|mly|mpt|ncr|ncv|nsp|stg|sym|trm|wds)\
 		[0-9]+";
};

attach 0 {
 	device-name "da[0-9]+";
 	action "/usr/sbin/chown root:umass $device-name;chmod 660 $device-name";
};




after inserting USB DataTraveller this action isn't performed and i 
still needs to be root to access it.

what's wrong?