SUBSYSTEM=="tty", SYSFS{idVendor}=="067b", SYSFS{idProduct}=="2303", SYMLINK="gps0", RUN+="/lib/udev/gpsd.hotplug.wrapper" 

SUBSYSTEM=="tty", SYSFS{idVendor}=="0403", SYSFS{idProduct}=="6001" , SYMLINK="elm0"