LEDs: White SES = Forward feed, Orange SES = Reverse feed, DMZ = Cutout

 NOTE: The LEDs on the WRT54GL use inverse logic i.e. ON = 0v, OFF = 3.3v
       Hence, to activate a function, turn its associated LED *off*
       Boot scripts on the WRT54GL will set each LED on by default

 # Forward feed control (i.e. white Cisco LED off to feed)
 Start: echo '0' > /proc/diag/led/ses_white
 Stop: echo '1' > /proc/diag/led/ses_white

 # Reverse feed control (i.e. orange Cisco LED off to feed)
 Start: echo '0' > /proc/diag/led/ses_orange
 Stop: echo '1' > /proc/diag/led/ses_orange

 # Cutout (i.e. DMZ LED off, white/orange LEDs in whatever state they like)
 Cutout: echo '0' > /proc/diag/led/dmz
 Resume: echo '0' > /proc/diag/led/dmz

 WARNING!! - DO NOT TURN THE WHITE AND ORANGE LEDS OFF AT THE SAME TIME
             (I.E. ATTEMPT TO SIMULTANEOUSLY FORWARD AND REVERSE FEED)
             AS I THINK THIS MIGHT FRY THE REVERSE TRANSISTOR!