Hi guys, I'm having some issues when I try to use the mouse with chuck, e.g. 0 => int deviceNum; Hid hi; HidMsg msg; if( !hi.openMouse( deviceNum ) ) me.exit(); gives: HidIn: couldn't open mouse 0... I've tried to change the rights sudo -c 'chmod u+r /dev/input/*'; without sucess... I'm using Ubuntu 16.04. Any hints? Many thanks, Cheers