#!/bin/sh
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# Copyright (C) 2011, 2012 O.S. Systems Software LTDA.
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# Licensed on MIT
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udev_shutdown_hook_handler() {
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status=$1
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module=$2
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if [ "$status" = "pre" ] && [ "$module" = "finish" ]; then
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udevadm settle
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killall `basename $_UDEV_DAEMON` 2>/dev/null
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fi
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}
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udev_daemon() {
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OPTIONS="/sbin/udev/udevd /sbin/udevd /lib/udev/udevd /lib/systemd/systemd-udevd"
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for o in $OPTIONS; do
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if [ -x "$o" ]; then
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echo $o
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return 0
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fi
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done
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return 1
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}
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_UDEV_DAEMON=`udev_daemon`
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udev_enabled() {
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if [ -z "$_UDEV_DAEMON" ]; then
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msg "WARNING: Cannot find the udev daemon; daemon will not be started in initramfs."
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return 1
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fi
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return 0
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}
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udev_run() {
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add_module_pre_hook "udev_shutdown_hook_handler"
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mkdir -p /run
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mkdir -p /var/run
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# Workaround if console=null, systemd-udevd needs valid stdin, stdout and stderr to work
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sh -c "exec 4< /dev/console" || { exec 0> /dev/null; exec 1> /dev/null; exec 2> /dev/null; }
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$_UDEV_DAEMON --daemon
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udevadm trigger --action=add
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udevadm settle
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}
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