post_install() {
    udevadm hwdb --update
    echo "udev rules, udev hwdb, and ACPI hooks updated."
    echo "You need to restart acpid and reload the udev rules/hwdb for these"
    echo "changes to take effect. To reload the udev rules, you can reboot,"
    echo "restart udev, or run as root:"
    echo "    udevadm trigger --action=change"
}

post_upgrade() {
    post_install $1
}

post_remove() {
    post_install $1
}