poky/meta/recipes-core/udev/eudev/init

#!/bin/sh

BEGIN INIT INFO

Provides: udev

Required-Start: mountvirtfs

Required-Stop:

Default-Start: S

Default-Stop:

Short-Description: Start udevd, populate /dev and load drivers.

END INIT INFO

export TZ=/etc/localtime

[ -d /sys/class ] || exit 1 [ -r /proc/mounts ] || exit 1 [ -x @UDEVD@ ] || exit 1

[ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf [ -f /etc/default/rcS ] && . /etc/default/rcS

kill_udevd () { pid=pidof -x udevd [ -n "$pid" ] && kill $pid }

make_static_nodes () { [ -e /lib/modules/$(uname -r)/modules.devname ] || return 0 [ -x @KMOD@ ] || return 0

#output to /proc/self/fd/1 since /dev/stdout not created by udevd yet
@KMOD@ static-nodes --format=tmpfiles --output=/proc/self/fd/1 |
while read TTYPE TPATH TMODE TUSER TGROUP TAGE TARG; do
case "${TTYPE}" in
'd')
        test -d "${TPATH}" || mkdir -p -m "${TMODE}" "${TPATH}"
        ;;

'c!')
        if [ ! -c "${TPATH}" ]; then
                old_ifs="${IFS}"
                IFS=:
                set -- ${TARG}
                IFS="${old_ifs}"
                mknod -m "${TMODE}" "${TPATH}" c "$@"
        fi
        ;;

*)
        echo "Unparseable line (${TTYPE} ${TPATH} ${TMODE} ${TUSER} ${TGROUP} ${TAGE} ${TARG})"
        return 1
        ;;
esac
if [ "${TUSER}" != "-" ]; then
        chown "${TUSER}" "${TPATH}"
fi
if [ "${TGROUP}" != "-" ]; then
        chgrp "${TGROUP}" "${TPATH}"
fi
done

}

case "$1" in start) export ACTION=add # propagate /dev from /sys echo "Starting udev"

# Check for requireed devtmpfs before trying to start udev and
# mount a no-existant fs.
if ! grep -q devtmpfs /proc/filesystems
then
    echo "Missing devtmpfs, which is required for udev to run";
    echo "Halting..."
    halt
fi
# mount the devtmpfs on /dev, if not already done
LANG=C awk '$2 == "/dev" && ($3 == "devtmpfs") { exit 1 }' /proc/mounts && {
        mount -n -o mode=0755 -t devtmpfs none "/dev"
}
[ -e /dev/pts ] || mkdir -m 0755 /dev/pts
[ -e /dev/shm ] || mkdir -m 1777 /dev/shm
# the automount rule for udev needs /tmp directory available, as /tmp is a symlink
# to /var/tmp which in turn is a symlink to /var/volatile/tmp, we need to make sure
# /var/volatile/tmp directory to be available.
mkdir -m 1777 -p /var/volatile/tmp

# make_extra_nodes
kill_udevd > "/dev/null" 2>&1

make_static_nodes
# trigger the sorted events
[ -e /proc/sys/kernel/hotplug ] && printf '\0\n' >/proc/sys/kernel/hotplug
@UDEVD@ -d

udevadm control --env=STARTUP=1
if [ "$not_first_boot" != "" ];then
        if [ "$PROBE_PLATFORM_BUS" != "yes" ]; then
            PLATFORM_BUS_NOMATCH="--subsystem-nomatch=platform"
        else
            PLATFORM_BUS_NOMATCH=""
        fi
        udevadm trigger --action=add --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux $PLATFORM_BUS_NOMATCH
        (udevadm settle --timeout=3; udevadm control --env=STARTUP=)&
else
        udevadm trigger --action=add
        udevadm settle
fi
;;

stop) echo "Stopping udevd" start-stop-daemon --stop --name udevd --quiet ;; restart) $0 stop sleep 1 $0 start ;; status) pid=pidof -x udevd if [ -n "$pid" ]; then echo "udevd (pid $pid) is running ..." else echo "udevd is stopped" fi ;; *) echo "Usage: $0 {start|stop|status|restart}" exit 1 esac exit 0