After seeing much enthusiasm regarding getting access to GPIO pins
on the URI/USB devices, I gave some thought to what would be the
best and most efficient way to implement it, and came up with the
following:

http://app-rpt.qrvc.com/node/177

"Manipulating GPIO signals within chan_usbradio and chan_simpleusb"

see also:

http://app-rpt.qrvc.com/node/176

"Event Management Subsystem"

The bad news is that I discovered (after much head pounding) that
on the CM108AH chips, they removed GPIO 2, making only 2 GPIO
pins available. That is not a positive thing, as far as I am concerned.

Oh well, I guess 2 is better then 0.

JIM WB6NIL