[arm-allstar] Flashing green LED

[Larry]

Is there any way to set/adjust the flash rate of the green USB LED?

I have a new re-build on a RPI3 node and a newly modified USB Sound FOB. 
Node is updated to the latest hamvoip via menu #1
The green LED flashes fast enough that it becomes irritating. It also 
seems to be a bit brighter than other sound FOB of the same kind.

For some reason the flash rate is faster than my other Pi nodes. Say 
about 1.5+ times as fast.
No Turbo mode active if that makes a difference.

Everything works fine Node wise. All except for the irritating LED flashing.

Larry - N7FM