Keyboard simulation within a userspace component

Hi @dm17ry, I built something similar, but much less fancy. I'm curious how you implemented the communication between the microcontroller and linuxcnc. My polling loop is ok, but if it disconnects I have to restart everything. Thanks for sharing your code! I found the zip in a prior post. Mine is here: github.com/nathantsoi/stm32f103-buttons-panel and here github.com/nathantsoi/linuxcnc-router-co.../master/lcdbtns.comp