Sébastien Dominguez

Just facing the same problem, and then I discovered [devmon](https://igurublog.wordpress.com/downloads/script-devmon/) witch works flawlessly. it's bundled with the [udevil](https://ignorantguru.github.io/udevil/) utility. `sudo apt install udevil` And then you can just type `devmon`...

I just added this line in `/etc/rc.local` to start the daemon when the pi startup `( sleep 5 && sudo -u pi devmon ) &`