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 | . ${rc_functions}
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21 |
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22 | trigger_device_events() {
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23 | # generate events with the sysfs trigger
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24 | list=$(echo /sys/bus/*/devices/*/uevent)
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25 | list="$list $(echo /sys/class/*/*/uevent)"
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26 | list="$list $(echo /sys/block/*/uevent /sys/block/*/*/uevent)"
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27 | for i in $list; do
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28 | case "$i" in
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29 | */device/uevent)
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30 | # skip followed device symlinks
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31 | continue
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32 | ;;
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33 |
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34 | */class/mem/*|*/class/tty/*)
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35 | first="$first $i"
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36 | ;;
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37 |
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38 | */block/md*)
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39 | last="$last $i"
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40 | ;;
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41 |
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42 | */*)
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43 | default="$default $i"
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44 | ;;
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45 | esac
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46 | done
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47 |
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48 | # trigger the sorted events
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49 | for i in $first $default $last; do
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50 | echo "add" > "$i"
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51 | done
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52 | }
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53 |
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54 | case "$1" in
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55 | start)
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56 | # disable hotplug helper, udevd listens to netlink
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57 | echo "" > /proc/sys/kernel/hotplug
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58 |
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59 | # start udevd
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60 | bootmesg "Starting udevd..."
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61 | loadproc /sbin/udevd --daemon
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62 |
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63 | # cleanup some stuff
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64 | rm -f /var/run/sysconfig/network
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65 | rm -rf /events/*
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66 |
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67 | # start coldplugging
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68 | bootmesg "Performing Coldplugging..."
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69 |
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70 | # unlikely, but we may be faster than the first event
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71 | mkdir -p /dev/.udev/queue
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72 |
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73 | # configure all devices
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74 | trigger_device_events
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75 |
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76 | # until we know how to do better, we wait for all events to finish
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77 | loop=0
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78 | while test -d /dev/.udev/queue; do
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79 | sleep 0.1;
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80 | test "$loop" -gt 300 && break
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81 | loop=$(($loop + 1))
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82 | done
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83 |
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84 | echo_ok
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85 | ;;
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86 |
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87 | stop)
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88 | bootmesg "Stopping udevd..."
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89 | echo "/sbin/hotplug" > /proc/sys/kernel/hotplug
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90 | killproc /sbin/udevd
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91 | ;;
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92 |
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93 | restart)
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94 | bootmesg "Restarting udevd..."
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95 | killproc /sbin/udevd
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96 | loadproc /sbin/udevd --daemon
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97 | evaluate_retval
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98 | ;;
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99 |
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100 | status)
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101 | statusproc /sbin/udevd
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102 | ;;
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103 |
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104 | reload)
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105 | bootmesg "Reloading udev rules..."
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106 | udevcontrol reload_rules
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107 | cp --preserve=all --recursive --update /lib/udev/devices/* /dev
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108 | evaluate_retval
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109 | ;;
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110 |
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111 | force-reload)
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112 | bootmesg "Updating all available device nodes in /dev..."
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113 | udevcontrol reload_rules
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114 | rm -rf /dev/.udev /dev/disk
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115 | cp --preserve=all --recursive --update /lib/udev/devices/* /dev
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116 | trigger_device_events
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117 | evaluate_retval
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118 | ;;
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119 |
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120 | *)
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121 | echo "Usage: $0 {start|stop|restart|status|reload|force-reload}"
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122 | exit 1
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123 | ;;
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124 | esac
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