package/eudev/S10udev

   1 #!/bin/sh
   2 #
   3 # udev  This is a minimal non-LSB version of a UDEV startup script.  It
   4 #       was derived by stripping down the udev-058 LSB version for use
   5 #       with buildroot on embedded hardware using Linux 2.6.34+ kernels.
   6 #
   7 #       You may need to customize this for your system's resource limits
   8 #       (including startup time!) and administration.  For example, if
   9 #       your early userspace has a custom initramfs or initrd you might
  10 #       need /dev much earlier; or without hotpluggable busses (like USB,
  11 #       PCMCIA, MMC/SD, and so on) your /dev might be static after boot.
  12 #
  13 #       This script assumes your system boots right into the eventual root
  14 #       filesystem, and that init runs this udev script before any programs
  15 #       needing more device nodes than the bare-bones set -- /dev/console,
  16 #       /dev/zero, /dev/null -- that's needed to boot and run this script.
  17 #
  18
  19 # Check for missing binaries
  20 UDEV_BIN=/sbin/udevd
  21 test -x $UDEV_BIN || exit 5
  22
  23 # Check for config file and read it
  24 UDEV_CONFIG=/etc/udev/udev.conf
  25 test -r $UDEV_CONFIG || exit 6
  26 . $UDEV_CONFIG
  27
  28 case "$1" in
  29     start)
  30         printf "Populating ${udev_root:-/dev} using udev: "
  31         printf '\000\000\000\000' > /proc/sys/kernel/hotplug
  32         $UDEV_BIN -d || (echo "FAIL" && exit 1)
  33         udevadm trigger --type=subsystems --action=add
  34         udevadm trigger --type=devices --action=add
  35         udevadm settle --timeout=30 || echo "udevadm settle failed"
  36         echo "done"
  37         ;;
  38     stop)
  39         # Stop execution of events
  40         udevadm control --stop-exec-queue
  41         killall udevd
  42         ;;
  43     *)
  44         echo "Usage: $0 {start|stop}"
  45         exit 1
  46         ;;
  47 esac
  48
  49
  50 exit 0