diff --git a/include/androidfw/PowerManager.h b/include/androidfw/PowerManager.h
new file mode 100644
index 0000000..ba98db0
--- /dev/null
+++ b/include/androidfw/PowerManager.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _ANDROIDFW_POWER_MANAGER_H
+#define _ANDROIDFW_POWER_MANAGER_H
+
+
+namespace android {
+
+enum {
+    USER_ACTIVITY_EVENT_OTHER = 0,
+    USER_ACTIVITY_EVENT_BUTTON = 1,
+    USER_ACTIVITY_EVENT_TOUCH = 2,
+
+    USER_ACTIVITY_EVENT_LAST = USER_ACTIVITY_EVENT_TOUCH, // Last valid event code.
+};
+
+} // namespace android
+
+#endif // _ANDROIDFW_POWER_MANAGER_H