On Tue, May 19, 2020 at 12:14:55PM +0000, Joakim Tjernlund wrote: > Whenever we connect a Linux laptop(4.19.118) to our ttyACM serial gadget we can see som strange > chars appearing in our gadget: > 03�`3�03�x�x(in hex: 3033 efbf bd60 33ef bfbd 3033 efbf bd78 efbf bd78) > They appear witch c.a 1 sec in between. > I assume it is the laptops ACM driver emitting those, but why? Can these chars be turned off? It's a program on your laptop probing the device. Usually modemmanager or something like that. greg k-h
