| 1 | #!/bin/sh
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| 2 | ########################################################################
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| 3 | # Begin $rc_base/init.d/udev
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| 4 | #
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| 5 | # Description : Udev Boot Script
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| 6 | #
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| 7 | # Authors : Based on Open Suse Udev Rules
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| 8 | # kay.sievers@suse.de
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| 9 | #
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| 10 | # Adapted to : Jim Gifford
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| 11 | # LFS
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| 12 | #
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| 13 | # Version : 00.00
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| 14 | #
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| 15 | # Notes :
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| 16 | #
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| 17 | ########################################################################
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| 18 |
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| 19 | . /etc/sysconfig/rc
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| 20 | . ${rc_functions}
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| 21 |
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| 22 | PATH="/sbin:/bin"
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| 23 | DAEMON=/sbin/udevd
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| 24 | udevd_args="--daemon"
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| 25 |
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| 26 | function trigger_device_events() {
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| 27 | # generate events with the sysfs trigger
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| 28 | list=$(echo /sys/bus/*/devices/*/uevent)
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| 29 | list="$list $(echo /sys/class/*/*/uevent)"
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| 30 | list="$list $(echo /sys/block/*/uevent /sys/block/*/*/uevent)"
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| 31 | for i in $list; do
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| 32 | case "$i" in
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| 33 | */device/uevent)
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| 34 | # skip followed device symlinks
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| 35 | continue
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| 36 | ;;
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| 37 |
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| 38 | */class/mem/*|*/class/tty/*)
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| 39 | first="$first $i"
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| 40 | ;;
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| 41 |
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| 42 | */block/md*)
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| 43 | last="$last $i"
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| 44 | ;;
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| 45 |
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| 46 | */*)
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| 47 | default="$default $i"
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| 48 | ;;
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| 49 | esac
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| 50 | done
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| 51 |
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| 52 | # trigger the sorted events
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| 53 | for i in $first $default $last; do
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| 54 | echo "add" > "$i"
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| 55 | done
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| 56 | }
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| 57 |
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| 58 | case "$1" in
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| 59 | start)
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| 60 |
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| 61 | # disable hotplug helper, udevd listens to netlink
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| 62 | echo "" > /proc/sys/kernel/hotplug
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| 63 |
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| 64 | # start udevd
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| 65 | boot_mesg "Starting udevd"
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| 66 | loadproc $DAEMON $udevd_args
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| 67 |
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| 68 | # cleanup some stuff
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| 69 | rm -rf /events/*
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| 70 |
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| 71 | # unlikely, but we may be faster than the first event
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| 72 | mkdir -p /dev/.udev/queue
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| 73 |
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| 74 | # configure all devices
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| 75 | trigger_device_events
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| 76 |
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| 77 | # until we know how to do better, we wait for all events to finish
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| 78 | loop=0
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| 79 | while test -d /dev/.udev/queue; do
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| 80 | sleep 0.1;
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| 81 | test "$loop" -gt 300 && break
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| 82 | loop=$(($loop + 1))
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| 83 | done
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| 84 | ;;
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| 85 |
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| 86 | stop)
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| 87 | boot_mesg "Stopping udevd:"
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| 88 | echo "/sbin/hotplug" > /proc/sys/kernel/hotplug
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| 89 | killproc $DAEMON
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| 90 | ;;
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| 91 |
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| 92 | restart)
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| 93 | ${0} stop
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| 94 | sleep 1
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| 95 | ${0} start
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| 96 | ;;
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| 97 |
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| 98 | status)
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| 99 | statusproc /sbin/udevd
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| 100 | ;;
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| 101 |
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| 102 | reload)
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| 103 | boot_mesg "Reloading udev rules:"
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| 104 | udevcontrol reload_rules
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| 105 | cp --preserve=all --recursive --update /lib/udev/devices/* /dev
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| 106 | evaluate_retval
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| 107 | ;;
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| 108 |
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| 109 | force-reload)
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| 110 | boot_mesg "Updating all available device nodes in /dev: "
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| 111 | udevcontrol reload_rules
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| 112 | rm -rf /dev/.udev /dev/disk
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| 113 | cp --preserve=all --recursive --update /lib/udev/devices/* /dev
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| 114 | trigger_device_events
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| 115 | evaluate_retval
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| 116 | ;;
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| 117 | *)
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| 118 | echo "Usage: $0 {start|stop|restart|status|reload|force-reload}"
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| 119 | exit 1
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| 120 | ;;
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| 121 | esac
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