1#!/bin/sh
2# Copyright (C) 2011, 2012 O.S. Systems Software LTDA.
3# Licensed on MIT
4
5udev_shutdown_hook_handler() {
6	status=$1
7	module=$2
8	if [ "$status" = "pre" ] && [ "$module" = "finish" ]; then
9		killall `basename $_UDEV_DAEMON` 2>/dev/null
10	fi
11}
12
13udev_daemon() {
14	OPTIONS="/sbin/udev/udevd /sbin/udevd /lib/udev/udevd /lib/systemd/systemd-udevd"
15
16	for o in $OPTIONS; do
17		if [ -x "$o" ]; then
18			echo $o
19			return 0
20		fi
21	done
22
23	return 1
24}
25
26_UDEV_DAEMON=`udev_daemon`
27
28udev_enabled() {
29	if [ -z "$_UDEV_DAEMON" ]; then
30		msg "WARNING: Cannot find the udev daemon; daemon will not be started in initramfs."
31		return 1
32	fi
33
34	return 0
35}
36
37udev_run() {
38	add_module_pre_hook "udev_shutdown_hook_handler"
39
40	mkdir -p /run
41	mkdir -p /var/run
42
43	$_UDEV_DAEMON --daemon
44	udevadm trigger --action=add
45	udevadm settle
46}
47