/lib/udev/rules.d/40-gnupg2.rules is in gnupg2 2.0.17-2ubuntu2.
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 12 | # do not edit this file, it will be overwritten on update
SUBSYSTEM!="usb", GOTO="gnupg_rules_end"
ACTION!="add", GOTO="gnupg_rules_end"
# USB SmartCard Readers
## SCM readers (SCR335, SPR532, & Co)
ATTR{idVendor}=="04e6", ATTR{idProduct}=="e001", ENV{ID_SMARTCARD_READER}="1", ENV{ID_SMARTCARD_READER_DRIVER}="gnupg"
ATTR{idVendor}=="04e6", ATTR{idProduct}=="e003", ENV{ID_SMARTCARD_READER}="1", ENV{ID_SMARTCARD_READER_DRIVER}="gnupg"
ATTR{idVendor}=="04e6", ATTR{idProduct}=="5115", ENV{ID_SMARTCARD_READER}="1", ENV{ID_SMARTCARD_READER_DRIVER}="gnupg"
LABEL="gnupg_rules_end"
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