I'm running DIAL on a R-Pi2 into a modified USB fob for connection to my repeater. 

Everything seems to load and be configured fine, but I can't get the fob PTT to trip. I believe the PTT FET is driven from the red LED on the fob (pin13) and I can't get a new unmodded fob to cycle the red LED either.

 Simpleusb-tune-menu "f" test of PTT and audio shows no LED/PTT activity, but tone is OK.

Audio courtesy tones and hang time and receive audio passes the in/out of the fob during COR, just NO keying. 

Now I did install DIAL on the R-Pi2 without CM108 attached if that was important.

Ideas where the config is unright?
73, 

Duane KA1LM  #42996