Hi @hfranco.tx ,
That’s really unfortunate to hear.
Since I have zero experience with this I would rather try to avoid this. I basically only need to increase the speed of the rpmsg to 200kBytes/s, which is around 2-3 times faster than what I am achieving right now. I think I will just try splitting my samples into 3-4 rpmsg channels since this can be achieved without changing the kernel.
In another topic you also mentioned that avoiding the tty could be even better:
Again no experience here but still sounds like a better solution than learning yocto etc.