[chirp_users] Linux User error message

[Charly Aurelia]

Hello,

First time using CHIRP with a brand new Pofung UV82.

Every time I try to Download From Radio regardless of which port from 
drop down menu i choose), I get this type of message :

could not open port /dev/ttyUSB0: [Errno 13] Permission denied: 
'/dev/ttyUSB0'

I am pretty certain I am plugged into the port labeled USB0.

I have no idea how to change permission access to the port.

Any thoughts?

Thanks,

Charly