File: //lib64/udev/rules.d/50-usb-modem.rules
# author: ANT
# only handle usb-modem dongle
ENV{SUBSYSTEM}!="usb", GOTO="modem_end"
ACTION!="add|remove", GOTO="modem_end"
ENV{SYNO_USB_DEVICE}!="MODEM", GOTO="modem_end"
ENV{SYNO_USB_DRIVER}=="", GOTO="modem_end"
ENV{SYNO_SUPPORT_DUALHEAD}=="yes", GOTO="modem_end"
ENV{SYNO_BLOCK_OPTIONAL_USB}=="yes", GOTO="modem_end"
ACTION=="add", RUN+="/lib/udev/script/usb-modem-util.sh plug-in"
ACTION=="remove", RUN+="/lib/udev/script/usb-modem-util.sh plug-out"
LABEL="modem_end"