After you've downloaded the driver installation file (seems to be a .run
file), open up a terminal, become root and cd
to the directory where the file resides. Let's say the driver installer is called cnxtinstall.run
(if it's something else, change the filename accordingly below). Now, let's first make sure it's executable and then run it:
chmod +x cnxtinstall.run
After this the program should guide you through the setup.