udev: Add 092. Included is a custom rule which adds a symlink to the touchscreen as /dev/input/touchscreen0 if present (this does not work under udev 089 due to bugs). Several udev conf files required cleanups to work with the new udev version.

1 files changed, 227 insertions, 0 deletions

diff --git a/packages/udev/udev-092/init b/packages/udev/udev-092/init
new file mode 100644
index 0000000000..5a60d52a9a
--- /dev/null
+++ b/packages/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
+