How to enable a user account to use USB in Linux - MDHSRobotics/TeamWiki GitHub Wiki
#How to enable a user account to use USB in Linux
In Linux, user accounts need to be authorized to use USB. See ROS Answers post on enabling user to use USB for RPLidar fo details on how to enable it.
####Command
sudo gpasswd --add ${USER} dialout
You will have to logout and then log back in before the group change is recognized.