echo 'SUBSYSTEM=="usb", SYSFS{idProduct}=="1505", SYSFS{idVendor}=="12d1", RUN+="/lib/udev/modem-modeswitch --vendor 0x12d1 --product 0x1505 --type option-zerocd"' | sudo tee /etc/udev/rules.d/45-huawei1550.rules SUBSYSTEM=="usb", SYSFS{idProduct}=="1505", SYSFS{idVendor}=="12d1", RUN+="/lib/udev/modem-modeswitch --vendor 0x12d1 --product 0x1505 --type option-zerocd"