HOWTO+-+udev+Rules+-+USB-Serial+Permissions+to+Users

touch /etc/udev/rules.d/50-udev-default.rules

Paste the following content in this file. Use udevadm to get a list of recognized attributes. code KERNEL=="ttyUSB*", GROUP="uucp", MODE="0666" code
 * 1) udevadm info --attribute-walk --path=/sys/bus/usb-serial/devices/ttyUSB0 # To get the available attributes