I am trying to install a SureElec 20x4 Character LCD device that use a CP201x USB-Serial controller.   When I plug the device in a USB port I see it detected with dmesg as :     lsusb shows:     However, I get no /dev/ttyUSB0 to tell lcdproc to use.   My tougths are that is is missing the proper driver which seeems to be downloadable here in patch:   http://www.etheus.net/CP210x_Linux_Driver   or here with a makefile:   http://www.silabs.com/products/mcu/pages/usb