#!/bin/sh

start()
{
	printf 'Enabling device hotplugging... '

	if ! mount | grep -Fq ' /dev '; then
		mount -t tmpfs -o noexec,nosuid,mode=0755 tmpfs /dev
	fi

	printf '/sbin/mdev\n' >/proc/sys/kernel/hotplug
	mdev -s

	printf 'done.\n'
}

stop()
{
	printf 'Disabling device hotplugging... '

	printf '\n' >/proc/sys/kernel/hotplug

	if mount | grep -Fq ' /dev '; then
		umount /dev
	fi

	printf 'done.\n'
}

restart()
{
	printf 'Recanning devices... '

	mdev -s

	printf 'done.\n'
}

case "${1}" in
	start)
		start
		;;
	stop)
		stop
		;;
	restart)
		restart
		;;
	*)
		printf 'Usage: %s {start|stop|restart}\n' "${0}" >&2
		exit 1
		;;
esac