diff --git a/mounts.h b/mounts.h
new file mode 100644
index 0000000..ed7fb5f
--- /dev/null
+++ b/mounts.h
@@ -0,0 +1,38 @@
+/*
+ * 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 MTDUTILS_MOUNTS_H_
+#define MTDUTILS_MOUNTS_H_
+
+typedef struct {
+ const char *device;
+ const char *mount_point;
+ const char *filesystem;
+ const char *flags;
+} MountedVolume;
+
+int scan_mounted_volumes(void);
+
+const MountedVolume *find_mounted_volume_by_device(const char *device);
+
+const MountedVolume *
+find_mounted_volume_by_mount_point(const char *mount_point);
+
+int unmount_mounted_volume(const MountedVolume *volume);
+
+int remount_read_only(const MountedVolume* volume);
+
+#endif  // MTDUTILS_MOUNTS_H_