diff --git a/camera/device/3.4/default/Android.bp b/camera/device/3.4/default/Android.bp
new file mode 100644
index 0000000..c0ce838
--- /dev/null
+++ b/camera/device/3.4/default/Android.bp
@@ -0,0 +1,56 @@
+//
+// Copyright (C) 2017 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.
+//
+
+cc_library_headers {
+    name: "camera.device@3.4-impl_headers",
+    vendor: true,
+    export_include_dirs: ["include/device_v3_4_impl"],
+}
+
+cc_library_shared {
+    name: "camera.device@3.4-impl",
+    defaults: ["hidl_defaults"],
+    proprietary: true,
+    vendor: true,
+    srcs: [
+        "CameraDevice.cpp",
+        "CameraDeviceSession.cpp",
+    ],
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "libutils",
+        "libcutils",
+        "camera.device@3.2-impl",
+        "camera.device@3.3-impl",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.graphics.mapper@2.0",
+        "liblog",
+        "libhardware",
+        "libcamera_metadata",
+        "libfmq",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    local_include_dirs: ["include/device_v3_4_impl"],
+    export_shared_lib_headers: [
+        "libfmq",
+    ],
+}
diff --git a/camera/device/3.4/default/CameraDevice.cpp b/camera/device/3.4/default/CameraDevice.cpp
new file mode 100644
index 0000000..d73833a
--- /dev/null
+++ b/camera/device/3.4/default/CameraDevice.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#define LOG_TAG "CamDev@3.4-impl"
+#include <log/log.h>
+
+#include <utils/Vector.h>
+#include <utils/Trace.h>
+#include "CameraDevice_3_4.h"
+#include <include/convert.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_4 {
+namespace implementation {
+
+using ::android::hardware::camera::common::V1_0::Status;
+using namespace ::android::hardware::camera::device;
+
+CameraDevice::CameraDevice(
+    sp<CameraModule> module, const std::string& cameraId,
+    const SortedVector<std::pair<std::string, std::string>>& cameraDeviceNames) :
+        V3_2::implementation::CameraDevice(module, cameraId, cameraDeviceNames) {
+}
+
+CameraDevice::~CameraDevice() {
+}
+
+sp<V3_2::implementation::CameraDeviceSession> CameraDevice::createSession(camera3_device_t* device,
+        const camera_metadata_t* deviceInfo,
+        const sp<V3_2::ICameraDeviceCallback>& callback) {
+    sp<CameraDeviceSession> session = new CameraDeviceSession(device, deviceInfo, callback);
+    IF_ALOGV() {
+        session->getInterface()->interfaceChain([](
+            ::android::hardware::hidl_vec<::android::hardware::hidl_string> interfaceChain) {
+                ALOGV("Session interface chain:");
+                for (auto iface : interfaceChain) {
+                    ALOGV("  %s", iface.c_str());
+                }
+            });
+    }
+    return session;
+}
+
+// End of methods from ::android::hardware::camera::device::V3_2::ICameraDevice.
+
+} // namespace implementation
+}  // namespace V3_4
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/device/3.4/default/CameraDeviceSession.cpp b/camera/device/3.4/default/CameraDeviceSession.cpp
new file mode 100644
index 0000000..0ae470f
--- /dev/null
+++ b/camera/device/3.4/default/CameraDeviceSession.cpp
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#define LOG_TAG "CamDevSession@3.4-impl"
+#include <android/log.h>
+
+#include <set>
+#include <utils/Trace.h>
+#include <hardware/gralloc.h>
+#include <hardware/gralloc1.h>
+#include "CameraDeviceSession.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_4 {
+namespace implementation {
+
+CameraDeviceSession::CameraDeviceSession(
+    camera3_device_t* device,
+    const camera_metadata_t* deviceInfo,
+    const sp<V3_2::ICameraDeviceCallback>& callback) :
+        V3_3::implementation::CameraDeviceSession(device, deviceInfo, callback) {
+}
+
+CameraDeviceSession::~CameraDeviceSession() {
+}
+
+Return<void> CameraDeviceSession::configureStreams_3_4(
+        const V3_4::StreamConfiguration& requestedConfiguration,
+        ICameraDeviceSession::configureStreams_3_3_cb _hidl_cb)  {
+    Status status = initStatus();
+    HalStreamConfiguration outStreams;
+
+    // hold the inflight lock for entire configureStreams scope since there must not be any
+    // inflight request/results during stream configuration.
+    Mutex::Autolock _l(mInflightLock);
+    if (!mInflightBuffers.empty()) {
+        ALOGE("%s: trying to configureStreams while there are still %zu inflight buffers!",
+                __FUNCTION__, mInflightBuffers.size());
+        _hidl_cb(Status::INTERNAL_ERROR, outStreams);
+        return Void();
+    }
+
+    if (!mInflightAETriggerOverrides.empty()) {
+        ALOGE("%s: trying to configureStreams while there are still %zu inflight"
+                " trigger overrides!", __FUNCTION__,
+                mInflightAETriggerOverrides.size());
+        _hidl_cb(Status::INTERNAL_ERROR, outStreams);
+        return Void();
+    }
+
+    if (!mInflightRawBoostPresent.empty()) {
+        ALOGE("%s: trying to configureStreams while there are still %zu inflight"
+                " boost overrides!", __FUNCTION__,
+                mInflightRawBoostPresent.size());
+        _hidl_cb(Status::INTERNAL_ERROR, outStreams);
+        return Void();
+    }
+
+    if (status != Status::OK) {
+        _hidl_cb(status, outStreams);
+        return Void();
+    }
+
+    const camera_metadata_t *paramBuffer = nullptr;
+    if (0 < requestedConfiguration.sessionParams.size()) {
+        ::android::hardware::camera::common::V1_0::helper::CameraMetadata sessionParams;
+        V3_2::implementation::convertFromHidl(requestedConfiguration.sessionParams, &paramBuffer);
+    }
+
+    camera3_stream_configuration_t stream_list{};
+    hidl_vec<camera3_stream_t*> streams;
+    stream_list.session_parameters = paramBuffer;
+    if (!preProcessConfigurationLocked(requestedConfiguration.v3_2, &stream_list, &streams)) {
+        _hidl_cb(Status::INTERNAL_ERROR, outStreams);
+        return Void();
+    }
+
+    ATRACE_BEGIN("camera3->configure_streams");
+    status_t ret = mDevice->ops->configure_streams(mDevice, &stream_list);
+    ATRACE_END();
+
+    // In case Hal returns error most likely it was not able to release
+    // the corresponding resources of the deleted streams.
+    if (ret == OK) {
+        postProcessConfigurationLocked(requestedConfiguration.v3_2);
+    }
+
+    if (ret == -EINVAL) {
+        status = Status::ILLEGAL_ARGUMENT;
+    } else if (ret != OK) {
+        status = Status::INTERNAL_ERROR;
+    } else {
+        V3_3::implementation::convertToHidl(stream_list, &outStreams);
+        mFirstRequest = true;
+    }
+
+    _hidl_cb(status, outStreams);
+    return Void();
+}
+
+} // namespace implementation
+}  // namespace V3_4
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/device/3.4/default/OWNERS b/camera/device/3.4/default/OWNERS
new file mode 100644
index 0000000..18acfee
--- /dev/null
+++ b/camera/device/3.4/default/OWNERS
@@ -0,0 +1,6 @@
+cychen@google.com
+epeev@google.com
+etalvala@google.com
+shuzhenwang@google.com
+yinchiayeh@google.com
+zhijunhe@google.com
diff --git a/camera/device/3.4/default/include/device_v3_4_impl/CameraDeviceSession.h b/camera/device/3.4/default/include/device_v3_4_impl/CameraDeviceSession.h
new file mode 100644
index 0000000..bff1734
--- /dev/null
+++ b/camera/device/3.4/default/include/device_v3_4_impl/CameraDeviceSession.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2017 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_HARDWARE_CAMERA_DEVICE_V3_4_CAMERADEVICE3SESSION_H
+#define ANDROID_HARDWARE_CAMERA_DEVICE_V3_4_CAMERADEVICE3SESSION_H
+
+#include <android/hardware/camera/device/3.2/ICameraDevice.h>
+#include <android/hardware/camera/device/3.3/ICameraDeviceSession.h>
+#include <android/hardware/camera/device/3.4/ICameraDeviceSession.h>
+#include <../../3.3/default/CameraDeviceSession.h>
+#include <../../3.3/default/include/convert.h>
+#include <fmq/MessageQueue.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <deque>
+#include <map>
+#include <unordered_map>
+#include "CameraMetadata.h"
+#include "HandleImporter.h"
+#include "hardware/camera3.h"
+#include "hardware/camera_common.h"
+#include "utils/Mutex.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_4 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::device;
+using ::android::hardware::camera::device::V3_2::CaptureRequest;
+using ::android::hardware::camera::device::V3_2::StreamConfiguration;
+using ::android::hardware::camera::device::V3_3::HalStreamConfiguration;
+using ::android::hardware::camera::device::V3_4::ICameraDeviceSession;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::helper::HandleImporter;
+using ::android::hardware::kSynchronizedReadWrite;
+using ::android::hardware::MessageQueue;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+using ::android::Mutex;
+
+struct CameraDeviceSession : public V3_3::implementation::CameraDeviceSession {
+
+    CameraDeviceSession(camera3_device_t*,
+            const camera_metadata_t* deviceInfo,
+            const sp<V3_2::ICameraDeviceCallback>&);
+    virtual ~CameraDeviceSession();
+
+    virtual sp<V3_2::ICameraDeviceSession> getInterface() override {
+        return new TrampolineSessionInterface_3_4(this);
+    }
+
+protected:
+    // Methods from v3.3 and earlier will trampoline to inherited implementation
+
+    // New methods for v3.4
+
+    Return<void> configureStreams_3_4(
+            const V3_4::StreamConfiguration& requestedConfiguration,
+            ICameraDeviceSession::configureStreams_3_3_cb _hidl_cb);
+private:
+
+    struct TrampolineSessionInterface_3_4 : public ICameraDeviceSession {
+        TrampolineSessionInterface_3_4(sp<CameraDeviceSession> parent) :
+                mParent(parent) {}
+
+        virtual Return<void> constructDefaultRequestSettings(
+                V3_2::RequestTemplate type,
+                V3_3::ICameraDeviceSession::constructDefaultRequestSettings_cb _hidl_cb) override {
+            return mParent->constructDefaultRequestSettings(type, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams(
+                const StreamConfiguration& requestedConfiguration,
+                V3_3::ICameraDeviceSession::configureStreams_cb _hidl_cb) override {
+            return mParent->configureStreams(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> processCaptureRequest(const hidl_vec<V3_2::CaptureRequest>& requests,
+                const hidl_vec<V3_2::BufferCache>& cachesToRemove,
+                V3_3::ICameraDeviceSession::processCaptureRequest_cb _hidl_cb) override {
+            return mParent->processCaptureRequest(requests, cachesToRemove, _hidl_cb);
+        }
+
+        virtual Return<void> getCaptureRequestMetadataQueue(
+                V3_3::ICameraDeviceSession::getCaptureRequestMetadataQueue_cb _hidl_cb) override  {
+            return mParent->getCaptureRequestMetadataQueue(_hidl_cb);
+        }
+
+        virtual Return<void> getCaptureResultMetadataQueue(
+                V3_3::ICameraDeviceSession::getCaptureResultMetadataQueue_cb _hidl_cb) override  {
+            return mParent->getCaptureResultMetadataQueue(_hidl_cb);
+        }
+
+        virtual Return<Status> flush() override {
+            return mParent->flush();
+        }
+
+        virtual Return<void> close() override {
+            return mParent->close();
+        }
+
+        virtual Return<void> configureStreams_3_3(
+                const StreamConfiguration& requestedConfiguration,
+                configureStreams_3_3_cb _hidl_cb) override {
+            return mParent->configureStreams_3_3(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams_3_4(
+                const V3_4::StreamConfiguration& requestedConfiguration,
+                configureStreams_3_3_cb _hidl_cb) override {
+            return mParent->configureStreams_3_4(requestedConfiguration, _hidl_cb);
+        }
+
+    private:
+        sp<CameraDeviceSession> mParent;
+    };
+};
+
+}  // namespace implementation
+}  // namespace V3_4
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_DEVICE_V3_4_CAMERADEVICE3SESSION_H
diff --git a/camera/device/3.4/default/include/device_v3_4_impl/CameraDevice_3_4.h b/camera/device/3.4/default/include/device_v3_4_impl/CameraDevice_3_4.h
new file mode 100644
index 0000000..95ee20e
--- /dev/null
+++ b/camera/device/3.4/default/include/device_v3_4_impl/CameraDevice_3_4.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 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_HARDWARE_CAMERA_DEVICE_V3_4_CAMERADEVICE_H
+#define ANDROID_HARDWARE_CAMERA_DEVICE_V3_4_CAMERADEVICE_H
+
+#include "utils/Mutex.h"
+#include "CameraModule.h"
+#include "CameraMetadata.h"
+#include "CameraDeviceSession.h"
+#include <../../3.2/default/CameraDevice_3_2.h>
+
+#include <android/hardware/camera/device/3.2/ICameraDevice.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_4 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::device;
+using ::android::hardware::camera::common::V1_0::helper::CameraModule;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+
+/*
+ * The camera device HAL implementation is opened lazily (via the open call)
+ */
+struct CameraDevice : public V3_2::implementation::CameraDevice {
+
+    // Called by provider HAL.
+    // Provider HAL must ensure the uniqueness of CameraDevice object per cameraId, or there could
+    // be multiple CameraDevice trying to access the same physical camera.  Also, provider will have
+    // to keep track of all CameraDevice objects in order to notify CameraDevice when the underlying
+    // camera is detached.
+    // Delegates nearly all work to CameraDevice_3_2
+    CameraDevice(sp<CameraModule> module,
+                 const std::string& cameraId,
+                 const SortedVector<std::pair<std::string, std::string>>& cameraDeviceNames);
+    ~CameraDevice();
+
+protected:
+    virtual sp<V3_2::implementation::CameraDeviceSession> createSession(camera3_device_t*,
+            const camera_metadata_t* deviceInfo,
+            const sp<V3_2::ICameraDeviceCallback>&) override;
+
+};
+
+}  // namespace implementation
+}  // namespace V3_4
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_DEVICE_V3_4_CAMERADEVICE_H