Halevt and permissions, commands running but not correctly

[brennydoogles]

I recently decided to attempt to implement automatically disabling my laptop's touchpad when my external mouse is connected, and I am just about there. Unfortunately, what I suspect to be a permissions problem is stopping me from succeeding. Here's what I have done so far:

1. Written a Script which will enable or disable the touchpad based upon cli argument (verified to work when called via terminal)
2. Set up a rule for halevt which successfully launches an arbitrary command when the mouse is connected or disconnected (even successfully logging itself)
3. Determined that the script is in fact being called upon device connection (by adding echo statements to the script which are working)

When launching halevt, I have even tried running it as my user/group, and with a special config file, all to no avail. Any help would be greatly appreciated!

Also, here is my command to run halevt:

sudo halevt -u brendon -g brendon -c /home/brendon/.halevt.xml

My .halevt.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<halevt:Configuration version="0.1" xmlns:halevt="http://www.environnement.ens.fr/perso/dumas/halevt.html">
	<halevt:Device match="hal.info.udi = /org/freedesktop/Hal/devices/usb_device_46d_c70e_00076142E023">
		<halevt:Insertion exec="/home/brendon/bin/toggleTouchpad off"/>
		<halevt:Removal exec="/home/brendon/bin/toggleTouchpad on"/>
	</halevt:Device>
</halevt:Configuration>

And the script being run:

# toggleTouchpad by Brendon Dugan
# Toggles a touchpad on or off depending on it's current state or CLI argument
#
# To configure, run the command 'xinput list' in terminal and identify your touch pad.
# Using the output of the above command, change the touchpadString variable to a substring
# of your touchpad's description that is unique to that device.
#
# To run, simply type 'toggleTouchpad' to toggle your touchpad on or off, or
# 'toggleTouchpad on' to explicitly turn your touchpad on, or
# 'toggleTouchpad off' to explicitly turn it off.
#
# Enjoy!
touchpadString="TouchPad"
touchpadID=$(xinput list | grep $touchpadString | awk -F " " '{print $6}' | awk -F "=" '{print $2}')
touchpadEnabled=$(xinput list-props $touchpadID | grep "Device Enabled" | awk -F ":" '{print $2}')

# Check for arguments on the command line
if test $# -eq 1
then
	# Change the argument to lowercase
	arg1=$(echo $1 | tr [:upper:] [:lower:])
	cliArg=1
else
	# There is no argument.
	cliArg=0
fi

if [ $cliArg -eq 1 ]
then
	# If there's an argument, check to see whether it is on, off, or junk
	if [ $arg1 = 'on' ]
	then
		# The argument was 'on', so turn the touchpad on 
		xinput --set-prop $touchpadID "Device Enabled" 1
		echo "ON"
	elif [ $arg1 = 'off' ]
	then
		# The argument was 'off', so turn the touchpad off 
		xinput --set-prop $touchpadID "Device Enabled" 0
		echo "OFF"
	else
		# The argument was junk, so do nothing 
		sleep 1
	fi
else
	# There was no argument, so just toggle the touchpad to the opposite
	# of the state it has now.
	if [ $touchpadEnabled -eq 1 ]
	then
		xinput --set-prop $touchpadID "Device Enabled" 0
	else
		xinput --set-prop $touchpadID "Device Enabled" 1
	fi
fi

[brennydoogles]

*Polite bump*

[brennydoogles]

Another polite bump.

[brennydoogles]

*Bump* -- Somehow this thread managed to make it all the way to page 12 in just a few hours... this is a busy forum!

[brennydoogles]

Solved here!