post_upgrade() {
    /usr/bin/udevadm trigger --subsystem-match=leds --action=change

    printf "
The notification LEDs may not work if your user is not in the
'feedbackd' group.

If this is the case, you can add your user to 'feedbackd' group
using the command below:

  # gpasswd -a your_username_here feedbackd

"

}

post_install() {
    post_upgrade
}
