Added an udev rule to assign a special name (car_lights) to the USB device.

config/params.yaml

 rate: 10
-serial_port: "/dev/ttyACM0"
+serial_port: "/dev/car_lights"
 baudrate: 57600
 device_id: 1
 

udev/99-car_lights.rules

+SUBSYSTEMS=="usb", KERNEL=="ttyACM[0-9]*", ATTRS{manufacturer}=="IRI", ATTRS{product}=="ADC car lights", SYMLINK+="car_lights"