diff --git a/media/omx/1.0/IOmx.hal b/media/omx/1.0/IOmx.hal
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+++ b/media/omx/1.0/IOmx.hal
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+/*
+ * Copyright (C) 2016 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.
+ */
+
+package android.hardware.media.omx@1.0;
+
+import android.hardware.media@1.0::types;
+
+import IOmxNode;
+import IOmxObserver;
+
+/**
+ * Ref: frameworks/av/include/media/IOMX.h: IOMX
+ *
+ * IOmx is the main entry point for communicating with OMX components.
+ */
+interface IOmx {
+
+    /**
+     * Information for an IOmxNode component.
+     */
+    struct ComponentInfo {
+        string mName;       //< Name of the component.
+        vec<string> mRoles; //< Roles of the component.
+    };
+
+    /**
+     * List available components.
+     *
+     * @param[out] status will be the status of the call.
+     * @param[out] nodeList will be a list of ComponentInfo.
+     */
+    listNodes(
+        ) generates (
+            Status status,
+            vec<ComponentInfo> nodeList
+        );
+
+    /**
+     * Allocate an IOmxNode instance with the specified component name.
+     *
+     * @param[in] name is the name of the component to create.
+     * @param[in] observer is an observer object that will receive messages from
+     * the created instance.
+     * @param[out] status will be the status of the call.
+     * @param[out] omxNode will be the allocated instance of IOmxNode.
+     */
+    allocateNode(
+            string name,
+            IOmxObserver observer
+        ) generates (
+            Status status,
+            IOmxNode omxNode
+        );
+
+};
+