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meta-rpi-diya/recipes-diya/initramfs/files/udev
2023-08-01 14:19:39 +02:00

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