I used the FAQ to determine that I should check librxtx.? Perhaps the FAQ need updated.
I did not say that I used the PiGate at the same time as YAAC.? I tested the TNC-Pi9k6 using PiGate to be sure it worked.? Then I switched to a different copy of PiOS where the only application installed is YAAC. So the device is not being shared by any other application.? I am still stuck with being unable to access /dev/serial0 with YAAC which is the only application running.
