SWRU558 June 2020 CC3100 , CC3100MOD , CC3200 , CC3200MOD
When running UniFlash on Linux (either GUI or CLI), you will need to run it using sudo to get access to the USB/serial port.
Alternately, you can manually change the permission of the port after you plug in your device to your machine. Use 'chmod' to change the permission of the /dev/ttyUSBx port for your device. You will need to manually do this every time a new device is plugged into your machine.
Another alternative is to add the current user to the 'dialout' group to gain access to any serial port resource. For instructions on how to do this, contact to your network administrator.