diff --git a/contexthub/1.1/default/Contexthub.h b/contexthub/1.1/default/Contexthub.h
new file mode 100644
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+++ b/contexthub/1.1/default/Contexthub.h
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+/*
+ * Copyright (C) 2020 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.
+ */
+#pragma once
+
+#include <android/hardware/contexthub/1.1/IContexthub.h>
+
+namespace android {
+namespace hardware {
+namespace contexthub {
+namespace V1_1 {
+namespace implementation {
+
+class Contexthub : public V1_1::IContexthub {
+    using ContextHubMsg = ::android::hardware::contexthub::V1_0::ContextHubMsg;
+    using IContexthubCallback = ::android::hardware::contexthub::V1_0::IContexthubCallback;
+    using NanoAppBinary = ::android::hardware::contexthub::V1_0::NanoAppBinary;
+    using Result = ::android::hardware::contexthub::V1_0::Result;
+
+  public:
+    // Methods from V1_0::IContexthub
+    Return<void> getHubs(getHubs_cb _hidl_cb) override;
+    Return<Result> registerCallback(uint32_t hubId,
+                                    const ::android::sp<IContexthubCallback>& cb) override;
+    Return<Result> sendMessageToHub(uint32_t hubId, const ContextHubMsg& msg) override;
+    Return<Result> loadNanoApp(uint32_t hubId, const NanoAppBinary& appBinary,
+                               uint32_t transactionId) override;
+    Return<Result> unloadNanoApp(uint32_t hubId, uint64_t appId, uint32_t transactionId) override;
+    Return<Result> enableNanoApp(uint32_t hubId, uint64_t appId, uint32_t transactionId) override;
+    Return<Result> disableNanoApp(uint32_t hubId, uint64_t appId, uint32_t transactionId) override;
+    Return<Result> queryApps(uint32_t hubId) override;
+
+    // Methods from V1_1::IContexthub
+    Return<void> onSettingChanged(Setting setting, SettingValue newValue) override;
+
+  private:
+    sp<IContexthubCallback> mCallback;
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace contexthub
+}  // namespace hardware
+}  // namespace android