diff --git a/contexthub/aidl/default/ContextHub.cpp b/contexthub/aidl/default/ContextHub.cpp
new file mode 100644
index 0000000..1b56608
--- /dev/null
+++ b/contexthub/aidl/default/ContextHub.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include "contexthub-impl/ContextHub.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace contexthub {
+
+// TODO(b/194285834): Implement AIDL HAL
+
+::ndk::ScopedAStatus ContextHub::getContextHubs(
+        std::vector<ContextHubInfo>* /* out_contextHubInfos */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::loadNanoapp(int32_t /* in_contextHubId */,
+                                             const NanoappBinary& /* in_appBinary */,
+                                             int32_t /* in_transactionId */,
+                                             bool* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::unloadNanoapp(int32_t /* in_contextHubId */,
+                                               int64_t /* in_appId */,
+                                               int32_t /* in_transactionId */,
+                                               bool* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::disableNanoapp(int32_t /* in_contextHubId */,
+                                                int64_t /* in_appId */,
+                                                int32_t /* in_transactionId */,
+                                                bool* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::enableNanoapp(int32_t /* in_contextHubId */,
+                                               int64_t /* in_appId */,
+                                               int32_t /* in_transactionId */,
+                                               bool* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::onSettingChanged(Setting /* in_setting */, bool /*in_enabled */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::queryNanoapps(int32_t /* in_contextHubId */,
+                                               bool* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::registerCallback(
+        int32_t /* in_contextHubId */, const std::shared_ptr<IContextHubCallback>& /* in_cb */,
+        bool* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus ContextHub::sendMessageToHub(int32_t /* in_contextHubId */,
+                                                  const ContextHubMessage& /* in_message */,
+                                                  bool* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace contexthub
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl