echo  'KERNEL=="ttyUSB*", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="0615",MODE:="0777", GROUP:="dialout", SYMLINK+="feg"' >/etc/udev/rules.d/feg.rules
udevadm trigger
sleep 2
udevadm control --reload

#sudo service udev reload
#sleep 2
#service udev restart