/lib/udev/rules.d/77-mm-cinterion-port-types.rules is in modemmanager 1.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | # do not edit this file, it will be overwritten on update
ACTION!="add|change|move", GOTO="mm_cinterion_port_types_end"
SUBSYSTEM!="tty", GOTO="mm_cinterion_port_types_end"
ENV{ID_VENDOR_ID}!="1e2d", GOTO="mm_cinterion_port_types_end"
SUBSYSTEMS=="usb", ATTRS{bInterfaceNumber}=="?*", ENV{.MM_USBIFNUM}="$attr{bInterfaceNumber}"
ATTRS{idVendor}=="1e2d", ATTRS{idProduct}=="0053", ENV{.MM_USBIFNUM}=="01", ENV{ID_MM_CINTERION_PORT_TYPE_GPS}="1"
LABEL="mm_cinterion_port_types_end"
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