diff --git a/include/hardware/IMountService.h b/include/hardware/IMountService.h
new file mode 100644
index 0000000..6737dcf
--- /dev/null
+++ b/include/hardware/IMountService.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2007 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 ANDROID_HARDWARE_IMOUNTSERVICE_H
+#define ANDROID_HARDWARE_IMOUNTSERVICE_H
+
+#include <utils/IInterface.h>
+#include <utils/String16.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+class IMountService : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MountService);
+
+    /**
+     * Is mass storage support enabled?
+     */
+    virtual bool getMassStorageEnabled() = 0;
+
+    /**
+     * Enable or disable mass storage support.
+     */
+    virtual void setMassStorageEnabled(bool enabled) = 0;
+
+    /**
+     * Is mass storage connected?
+     */
+    virtual bool getMassStorageConnected() = 0;
+    
+    /**
+     * Mount external storage at given mount point.
+     */
+    virtual void mountMedia(String16 mountPoint) = 0;
+
+    /**
+     * Safely unmount external storage at given mount point.
+     */
+    virtual void unmountMedia(String16 mountPoint) = 0;
+};
+
+// ----------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_HARDWARE_IMOUNTSERVICE_H