[App_rpt-users] All Star Link GPIO Odroid U3

[Luis Ceja Quiroz]

I am trying to use All Star Link without modifying a cm 108 chip. I am
trying to use the GPIO pins on the Odroid U3 expansion I/O board to control
the repeater logic signals (COR/PTT) but all I could find was information
on using either the GPIO pins on the cm108 fob (which must be modified to
use) or using a parallel port. The Odroid U3 doesn't have a parallel port
and I think the native GPIO pins should have the capacity to use the
COR/PTT signals.

I can't find any information on how to go about using the native GPIO pins
on an sbc for All Star Link. Is there a way to do this?

My thoughts on an approach to this:
1. create a driver or port that uses the GPIO pins as a parallel port
2. provide a memory address to the rpt.conf file that has a value
corresponding to the GPIO status so that it may be read as a parallel port
3. alter the software to use native GPIO as another option as opposed to
parallel port

I am not sure how to approach any of these options. I think option 3 would
be best but I don't know how this is possible. May i get some suggestions
or help regarding this? Thanks!
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