diff --git a/Volume.h b/Volume.h
new file mode 100644
index 0000000..bf2a799
--- /dev/null
+++ b/Volume.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2008 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 _VOLUME_H
+#define _VOLUME_H
+
+#include <utils/List.h>
+
+class Volume {
+private:
+    int mState;
+
+public:
+    static const int State_Init       = -1;
+    static const int State_Idle       = 1;
+    static const int State_Pending    = 2;
+    static const int State_Mounted    = 3;
+    static const int State_Checking   = 4;
+    static const int State_Formatting = 5;
+
+protected:
+    char *mLabel;
+    char *mMountpoint;
+
+public:
+    Volume(const char *label, const char *mount_point);
+    virtual ~Volume();
+
+    const char *getLabel() { return mLabel; }
+    const char *getMountpoint() { return mMountpoint; }
+    int getState() { return mState; }
+
+    virtual int handleDiskInsertion(const char *dp, int maj, int min, int nr_parts);
+
+protected:
+    void setState(int state);
+};
+
+typedef android::List<Volume *> VolumeCollection;
+
+#endif