Hi Ben,
There is a discussion about it on PX4 forum:
https://discuss.ardupilot.org/t/any-way-to-get-msp-telemetry-to-work-with-pixhawk-2-1/25761
You could implement it as a library, maybe it could fit inside apps /
inertial / libmsp. I think inertial is a more generic name than
drones, uav, etc.
Me and a mate are trying to implement the MSP protocol in NuttX so we can
also bring it back to the community. Maybe its allready done, but we could
not find it.
We really love the way one could configure your solution and flash it
through dfu. Just like betaflight does.
We will try (in the heckt