ACTION!="add|change", GOTO="yubico_end"
 
# Udev rules for letting the console user access the Yubikey USB
# device node, needed for challenge/response to work correctly.
 
# Yubico Yubikey 4 (0407=nano)
ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0407", \
    ENV{ID_SECURITY_TOKEN}="1"
 
LABEL="yubico_end"
 
ACTION==”remove”, ENV{ID_VENDOR_ID}=”1050″, ENV{SUBSYSTEM}==”usb”, RUN+=”/usr/bin/pkill scdaemon”