diff --git a/modules/sensors/dynamic_sensor/Android.bp b/modules/sensors/dynamic_sensor/Android.bp
index 1ebc04d..3f424b5 100644
--- a/modules/sensors/dynamic_sensor/Android.bp
+++ b/modules/sensors/dynamic_sensor/Android.bp
@@ -108,7 +108,18 @@
 
     cflags: ["-DLOG_TAG=\"DynamicSensorHal\""],
 
-    srcs: ["sensors.cpp"],
+    srcs: [
+        "DynamicSensorsSubHal.cpp",
+        "sensors.cpp",
+    ],
+    shared_libs: [
+        "android.hardware.sensors@2.0",
+        "android.hardware.sensors@2.1",
+        "libhidlbase",
+    ],
+    header_libs: [
+        "android.hardware.sensors@2.X-multihal.header",
+    ],
 }
 
 //
diff --git a/modules/sensors/dynamic_sensor/DynamicSensorsSubHal.cpp b/modules/sensors/dynamic_sensor/DynamicSensorsSubHal.cpp
new file mode 100644
index 0000000..df636a3
--- /dev/null
+++ b/modules/sensors/dynamic_sensor/DynamicSensorsSubHal.cpp
@@ -0,0 +1,117 @@
+/*
+ * 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 "DynamicSensorsSubHal.h"
+
+#include <hardware/sensors-base.h>
+#include <log/log.h>
+
+using ::android::hardware::sensors::V1_0::Result;
+template<class T> using Return = ::android::hardware::Return<T>;
+using ::android::hardware::Void;
+
+namespace android {
+namespace SensorHalExt {
+
+// ISensors.
+Return<Result> DynamicSensorsSubHal::setOperationMode(OperationMode mode) {
+    return (mode == static_cast<OperationMode>(SENSOR_HAL_NORMAL_MODE) ?
+            Result::OK : Result::BAD_VALUE);
+}
+
+Return<Result> DynamicSensorsSubHal::activate(int32_t sensor_handle __unused,
+                                              bool enabled __unused) {
+    ALOGE("DynamicSensorsSubHal::activate not supported.");
+
+    return Result::INVALID_OPERATION;
+}
+
+Return<Result> DynamicSensorsSubHal::batch(
+        int32_t sensor_handle __unused, int64_t sampling_period_ns __unused,
+        int64_t max_report_latency_ns __unused) {
+    ALOGE("DynamicSensorsSubHal::batch not supported.");
+
+    return Result::INVALID_OPERATION;
+}
+
+Return<Result> DynamicSensorsSubHal::flush(int32_t sensor_handle __unused) {
+    ALOGE("DynamicSensorsSubHal::flush not supported.");
+
+    return Result::INVALID_OPERATION;
+}
+
+Return<void> DynamicSensorsSubHal::registerDirectChannel(
+        const SharedMemInfo& mem __unused,
+        registerDirectChannel_cb callback __unused) {
+    ALOGE("DynamicSensorsSubHal::registerDirectChannel not supported.");
+
+    return Void();
+}
+
+Return<Result> DynamicSensorsSubHal::unregisterDirectChannel(
+        int32_t channel_handle __unused) {
+    ALOGE("DynamicSensorsSubHal::unregisterDirectChannel not supported.");
+
+    return Result::INVALID_OPERATION;
+}
+
+Return<void> DynamicSensorsSubHal::configDirectReport(
+        int32_t sensor_handle __unused, int32_t channel_handle __unused,
+        RateLevel rate __unused, configDirectReport_cb callback __unused) {
+    ALOGE("DynamicSensorsSubHal::configDirectReport not supported.");
+
+    return Void();
+}
+
+Return<void> DynamicSensorsSubHal::getSensorsList_2_1(
+        getSensorsList_2_1_cb callback __unused) {
+    ALOGD("DynamicSensorsSubHal::getSensorsList_2_1 invoked.");
+
+    return Void();
+}
+
+Return<Result> DynamicSensorsSubHal::injectSensorData_2_1(
+        const Event& event __unused) {
+    ALOGE("DynamicSensorsSubHal::injectSensorData_2_1 not supported.");
+
+    return Result::INVALID_OPERATION;
+}
+
+Return<void> DynamicSensorsSubHal::debug(
+        const hidl_handle& handle __unused,
+        const hidl_vec<hidl_string>& args __unused) {
+    return Void();
+}
+
+// ISensorsSubHal.
+Return<Result> DynamicSensorsSubHal::initialize(
+        const sp<IHalProxyCallback>& hal_proxy_callback __unused) {
+    ALOGD("DynamicSensorsSubHal::initialize invoked.");
+
+    return Result::OK;
+}
+
+} // namespace SensorHalExt
+} // namespace android
+
+using ::android::hardware::sensors::V2_1::implementation::ISensorsSubHal;
+ISensorsSubHal* sensorsHalGetSubHal_2_1(uint32_t* version) {
+    static android::SensorHalExt::DynamicSensorsSubHal subHal;
+
+    *version = SUB_HAL_2_1_VERSION;
+    return &subHal;
+}
+
diff --git a/modules/sensors/dynamic_sensor/DynamicSensorsSubHal.h b/modules/sensors/dynamic_sensor/DynamicSensorsSubHal.h
new file mode 100644
index 0000000..36ed9f5
--- /dev/null
+++ b/modules/sensors/dynamic_sensor/DynamicSensorsSubHal.h
@@ -0,0 +1,69 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_SENSORHAL_EXT_DYNAMIC_SENSORS_SUB_HAL_H
+#define ANDROID_SENSORHAL_EXT_DYNAMIC_SENSORS_SUB_HAL_H
+
+#include <V2_1/SubHal.h>
+
+namespace android {
+namespace SensorHalExt {
+
+class DynamicSensorsSubHal :
+        public ::android::hardware::sensors::V2_1::implementation::ISensorsSubHal {
+    using Event = ::android::hardware::sensors::V2_1::Event;
+    using hidl_handle = ::android::hardware::hidl_handle;
+    using hidl_string = ::android::hardware::hidl_string;
+    template<class T> using hidl_vec = ::android::hardware::hidl_vec<T>;
+    using IHalProxyCallback =
+        ::android::hardware::sensors::V2_1::implementation::IHalProxyCallback;
+    using OperationMode = ::android::hardware::sensors::V1_0::OperationMode;
+    using RateLevel = ::android::hardware::sensors::V1_0::RateLevel;
+    using Result = ::android::hardware::sensors::V1_0::Result;
+    template<class T> using Return = ::android::hardware::Return<T>;
+    using SharedMemInfo = ::android::hardware::sensors::V1_0::SharedMemInfo;
+
+public:
+    // ISensors.
+    Return<Result> setOperationMode(OperationMode mode) override;
+    Return<Result> activate(int32_t sensor_handle, bool enabled) override;
+    Return<Result> batch(int32_t sensor_handle, int64_t sampling_period_ns,
+                         int64_t max_report_latency_ns) override;
+    Return<Result> flush(int32_t sensor_handle) override;
+    Return<void> registerDirectChannel(
+            const SharedMemInfo& mem,
+            registerDirectChannel_cb callback) override;
+    Return<Result> unregisterDirectChannel(int32_t channel_handle) override;
+    Return<void> configDirectReport(
+            int32_t sensor_handle, int32_t channel_handle, RateLevel rate,
+            configDirectReport_cb callback) override;
+    Return<void> getSensorsList_2_1(getSensorsList_2_1_cb callback) override;
+    Return<Result> injectSensorData_2_1(const Event& event) override;
+    Return<void> debug(
+            const hidl_handle& handle,
+            const hidl_vec<hidl_string>& args) override;
+
+    // ISensorsSubHal.
+    const std::string getName() override { return "Dynamic-SubHAL"; }
+    Return<Result> initialize(
+            const sp<IHalProxyCallback>& hal_proxy_callback) override;
+};
+
+} // namespace SensorHalExt
+} // namespace android
+
+#endif // ANDROID_SENSORHAL_EXT_DYNAMIC_SENSORS_SUB_HAL_H
+