etc/udev/rules.d/70-usb-modeswitch.rules

   1 # define your rules for usb_modeswitch here
   2
   3 ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="14fe", RUN+="/usr/sbin/usb_modeswitch -v 12d1 -p 14fe -M '55534243123456780000000000000011062000000100000000000000000000'"
   4 ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1506", RUN+="/bin/bash -c 'modprobe option && echo 12d1 1506 > /sys/bus/usb-serial/drivers/option1/new_id'"