Hi,
I had a similar issue and ended up solving it using a simple "multiplexing" shell script listening on port 8004 for aprsdroid and replicating to port 8001 and 8002 toward direwolf. The other way around it gets packets from port 8001 and 8002 and push them to aprsdroid on port 8004.
If you configure ports like this in Direwolf, it just ignores the tnc port being specified on the kiss frame.
# VHF:
KISSPORT 8001 0
# HF
KISSPORT 8002 2
Additionaly I do not use BT through Direwolf serial. I have another script forwarding port 8004 to Bluetooth.
I do not have my Orange Pi handy right now, I will post the files later.
Here is a rough block diagram of how it works.
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Geoffrey F4FXL /? KC3FRA
My Direwolf stuff :
