### Copy this file into /etc/udev/rules.d
# sudo cp ./99-tc420.rules /etc/udev/rules.d/
# sudo udevadm control --reload-rules
### Add your user into plugdev group
# sudo adduser your_user_name plugdev
### Logout and login to apply new group setting
SUBSYSTEM=="usb", ATTRS{idVendor}=="0888", ATTRS{idProduct}=="4000", GROUP="plugdev", MODE="0664"