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authorRichard Purdie <rpurdie@linux.intel.com>2010-08-27 15:14:24 +0100
committerRichard Purdie <rpurdie@linux.intel.com>2010-08-27 15:29:45 +0100
commit29d6678fd546377459ef75cf54abeef5b969b5cf (patch)
tree8edd65790e37a00d01c3f203f773fe4b5012db18 /meta/recipes-core/udev/udev-092/init
parentda49de6885ee1bc424e70bc02f21f6ab920efb55 (diff)
downloadast2050-yocto-poky-29d6678fd546377459ef75cf54abeef5b969b5cf.zip
ast2050-yocto-poky-29d6678fd546377459ef75cf54abeef5b969b5cf.tar.gz
Major layout change to the packages directory
Having one monolithic packages directory makes it hard to find things and is generally overwhelming. This commit splits it into several logical sections roughly based on function, recipes.txt gives more information about the classifications used. The opportunity is also used to switch from "packages" to "recipes" as used in OpenEmbedded as the term "packages" can be confusing to people and has many different meanings. Not all recipes have been classified yet, this is just a first pass at separating things out. Some packages are moved to meta-extras as they're no longer actively used or maintained. Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'meta/recipes-core/udev/udev-092/init')
-rw-r--r--meta/recipes-core/udev/udev-092/init227
1 files changed, 227 insertions, 0 deletions
diff --git a/meta/recipes-core/udev/udev-092/init b/meta/recipes-core/udev/udev-092/init
new file mode 100644
index 0000000..5a60d52
--- /dev/null
+++ b/meta/recipes-core/udev/udev-092/init
@@ -0,0 +1,227 @@
+#!/bin/sh -e
+### 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
+
+# we need to unmount /dev/pts/ and remount it later over the tmpfs
+unmount_devpts() {
+ if mountpoint -q /dev/pts/; then
+ umount -l /dev/pts/
+ fi
+
+ if mountpoint -q /dev/shm/; then
+ umount -l /dev/shm/
+ fi
+}
+
+# mount a tmpfs over /dev, if somebody did not already do it
+mount_tmpfs() {
+ if grep -E -q "^[^[:space:]]+ /dev tmpfs" /proc/mounts; then
+ return
+ fi
+
+ # /dev/.static/dev/ is used by MAKEDEV to access the real /dev/ directory.
+ # /etc/udev/ is recycled as a temporary mount point because it's the only
+ # directory which is guaranteed to be available.
+ mount -n -o bind /dev /etc/udev
+
+ if ! mount -n -o size=$tmpfs_size,mode=0755 -t tmpfs tmpfs /dev; then
+ umount /etc/udev
+ echo "udev requires tmpfs support, not started."
+ exit 1
+ fi
+
+ mkdir -p /dev/.static/dev
+ chmod 700 /dev/.static/
+ # The mount options in busybox are non-standard...
+ if test -x /bin/mount.util-linux
+ then
+ /bin/mount.util-linux --move /etc/udev /dev/.static/dev
+ elif test -x /bin/busybox
+ then
+ busybox mount -n -o move /etc/udev /dev/.static/dev
+ else
+ echo "udev requires an identifiable mount command, not started."
+ umount /etc/udev
+ umount /dev
+ exit 1
+ fi
+}
+
+# I hate this hack. -- Md
+make_extra_nodes() {
+ if [ "$(echo /lib/udev/devices/*)" != "/lib/udev/devices/*" ]; then
+ cp -a /lib/udev/devices/* /dev/
+ fi
+
+ [ -e /etc/udev/links.conf ] || return 0
+ grep '^[^#]' /etc/udev/links.conf | \
+ while read type name arg1; do
+ [ "$type" -a "$name" -a ! -e "/dev/$name" -a ! -L "/dev/$name" ] ||continue
+ case "$type" in
+ L) ln -s $arg1 /dev/$name ;;
+ D) mkdir -p /dev/$name ;;
+ M) mknod -m 600 /dev/$name $arg1 ;;
+ *) echo "links.conf: unparseable line ($type $name $arg1)" ;;
+ esac
+ done
+}
+
+supported_kernel() {
+ case "$(uname -r)" in
+ 2.[012345].*|2.6.[0-9]|2.6.[0-9][!0-9]*) return 1 ;;
+ 2.6.1[01]|2.6.1[01][!0-9]*) return 1 ;;
+ esac
+ return 0
+}
+
+set_hotplug_handler() {
+ case "$(uname -r)" in
+ 2.6.1[0-4]|2.6.1[0-4][!0-9]*) HANDLER='/sbin/udevsend' ;;
+ esac
+ echo $HANDLER > /proc/sys/kernel/hotplug
+}
+
+# shell version of /usr/bin/tty
+my_tty() {
+ [ -x /bin/readlink ] || return 0
+ [ -e /proc/self/fd/0 ] || return 0
+ readlink --silent /proc/self/fd/0 || true
+}
+
+warn_if_interactive() {
+ if [ "$RUNLEVEL" = "S" -a "$PREVLEVEL" = "N" ]; then
+ return
+ fi
+
+ TTY=$(my_tty)
+ if [ -z "$TTY" -o "$TTY" = "/dev/console" ]; then
+ return
+ fi
+
+ printf "\n\n\nIt has been detected that the command\n\n\t$0 $*\n\n"
+ printf "has been run from an interactive shell.\n"
+ printf "It will probably not do what you expect, so this script will wait\n"
+ printf "60 seconds before continuing. Press ^C to stop it.\n"
+ printf "RUNNING THIS COMMAND IS HIGHLY DISCOURAGED!\n\n\n\n"
+ sleep 60
+}
+
+##############################################################################
+
+PATH="/sbin:/bin:/usr/bin"
+
+[ -x /sbin/udevd ] || exit 0
+
+# defaults
+tmpfs_size="10M"
+udev_root="/dev"
+udevd_timeout=30
+
+. /etc/udev/udev.conf
+
+if ! supported_kernel; then
+ echo "udev requires a kernel >= 2.6.12, not started."
+ exit 1
+fi
+
+if [ ! -e /proc/filesystems ]; then
+ echo "udev requires a mounted procfs, not started."
+ exit 1
+fi
+
+if ! grep -q '[[:space:]]tmpfs$' /proc/filesystems; then
+ echo "udev requires tmpfs support, not started."
+ exit 1
+fi
+
+if [ ! -d /sys/class/ ]; then
+ echo "udev requires a mounted sysfs, not started."
+ exit 1
+fi
+
+if [ ! -e /proc/sys/kernel/hotplug ]; then
+ echo "udev requires hotplug support, not started."
+ exit 1
+fi
+
+##############################################################################
+
+# When modifying this script, do not forget that between the time that
+# the new /dev has been mounted and udevsynthesize has been run there will be
+# no /dev/null. This also means that you cannot use the "&" shell command.
+
+case "$1" in
+ start)
+ if [ -e "$udev_root/.udev/" ]; then
+ if mountpoint -q /dev/; then
+ TMPFS_MOUNTED=1
+ else
+ echo ".udev/ already exists on the static $udev_root!"
+ fi
+ else
+ warn_if_interactive
+ fi
+
+ echo "Starting the hotplug events dispatcher" "udevd"
+ udevd --daemon
+
+ set_hotplug_handler
+
+ if [ -z "$TMPFS_MOUNTED" ]; then
+ unmount_devpts
+ mount_tmpfs
+ [ -d /proc/1 ] || mount -n /proc
+ fi
+
+ # if this directory is not present /dev will not be updated by udev
+ mkdir -p /dev/.udev/ /dev/.udev/db/ /dev/.udev/queue/ /dev/.udevdb/
+ # /dev/null must be created before udevd is started
+ make_extra_nodes
+
+ echo "Synthesizing the initial hotplug events"
+ udevsynthesize
+
+ # wait for the udevd childs to finish
+ echo "Waiting for /dev to be fully populated"
+ while [ -d /dev/.udev/queue/ ]; do
+ sleep 1
+ udevd_timeout=$(($udevd_timeout - 1))
+ if [ $udevd_timeout -eq 0 ]; then
+ # ps axf
+ break
+ fi
+ done
+ if [ $udevd_timeout -eq 0 ]; then
+ echo 'timeout'
+ fi
+ ;;
+
+ stop)
+ echo "Stopping the hotplug events dispatcher" "udevd"
+ start-stop-daemon --stop --name udevd --quiet
+ ;;
+
+ restart|force-reload)
+ echo "Stopping the hotplug events dispatcher" "udevd"
+ if start-stop-daemon --stop --name udevd --quiet ; then
+ exit 1
+ fi
+
+ echo "Starting the hotplug events dispatcher" "udevd"
+ udevd --daemon
+ ;;
+
+ *)
+ echo "Usage: /etc/init.d/udev {start|stop|restart|force-reload}"
+ exit 1
+ ;;
+esac
+
+exit 0
+
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