systemd/boot.udev

#!/bin/sh
#
### BEGIN INIT INFO
# Provides:          boot.udev
# Required-Start:
# Required-Stop:
# Should-Start:
# Should-Stop:
# Default-Start:     B
# Default-Stop:
# Short-Description: manage /dev and kernel device-events
# Description:       udevd daemon to manage /dev and kernel device events
### END INIT INFO

. /etc/rc.status

PATH="/sbin:/bin:/usr/sbin:/usr/bin"
DAEMON="@@SYSTEMD@@/systemd-udevd"
UDEVADM="@@BINDIR@@/udevadm"
WRITERULE="@@PREFIX@@/write_dev_root_rule"
udev_timeout=180

case "$1" in
	start)
		# create /dev/root symlink with dynamic rule
		if [ -x ${WRITERULE} ]; then
		    ${WRITERULE} >/dev/null 2>&1 || true
		fi

		# start udevd
		echo -n "Starting udevd: "
		${DAEMON} --daemon
		if [ $? -ne 0 ]; then
			rc_status -v
			rc_exit
		fi
		rc_status -v

		# trigger events for all devices
		echo -n "Loading drivers, configuring devices: "
		${UDEVADM} trigger --type=subsystems --action=add
		${UDEVADM} trigger --type=devices --action=add

		# wait for events to finish
		${UDEVADM} settle --timeout=$udev_timeout
		rc_status -v
		;;
	stop)
		echo -n "Stopping udevd: "
		killproc ${DAEMON}
		rc_status -v
		;;
	restart)
		echo -n "Restarting udevd: "
		killproc ${DAEMON}
		${DAEMON} --daemon
		rc_status -v
		;;
	status)
		echo -n "Checking for udevd: "
		checkproc ${DAEMON}
		rc_status -v
		;;
	reload|force-reload)
		echo -n "Reloading udevd: "
		killproc -G -HUP ${DAEMON}
		rc_status -v
		;;
	*)
		echo "Usage: $0 {start|stop|restart|status|reload|force-reload}"
		exit 1
		;;
esac
rc_exit