diff --git a/automotive/evs/1.1/IEvsCamera.hal b/automotive/evs/1.1/IEvsCamera.hal
index 38e6c42..3e7ac2b 100644
--- a/automotive/evs/1.1/IEvsCamera.hal
+++ b/automotive/evs/1.1/IEvsCamera.hal
@@ -215,4 +215,22 @@
      */
     setExtendedInfo_1_1(uint32_t opaqueIdentifier, vec<uint8_t> opaqueValue)
         generates (EvsResult result);
+
+    /**
+     * Import external buffers to capture frames
+     *
+     * This API must be called with a physical camera device identifier.
+     *
+     * @param  buffers  A list of buffers allocated by the caller.  EvsCamera
+     *                  will use these buffers to capture frames, in addition to
+     *                  other buffers already in its buffer pool.
+     * @return result   EvsResult::OK if it succeeds to import buffers.
+     *                  EvsResult::UNDERLYING_SERVICE_ERROR if this is called
+     *                  for logical camera devices or EVS fails to import
+     *                  buffers.
+     *         delta    The amount of buffer pool size changes after importing
+     *                  given buffers.
+     */
+    importExternalBuffers(vec<BufferDesc> buffers)
+        generates (EvsResult result, int32_t delta);
 };
diff --git a/automotive/evs/1.1/default/EvsCamera.cpp b/automotive/evs/1.1/default/EvsCamera.cpp
index 5196c95..0e69ed4 100644
--- a/automotive/evs/1.1/default/EvsCamera.cpp
+++ b/automotive/evs/1.1/default/EvsCamera.cpp
@@ -354,6 +354,14 @@
 }
 
 
+Return<void>
+EvsCamera::importExternalBuffers(const hidl_vec<BufferDesc_1_1>& /* buffers */,
+                                 importExternalBuffers_cb _hidl_cb) {
+    ALOGW("%s is not implemented yet.", __FUNCTION__);
+    _hidl_cb(EvsResult::UNDERLYING_SERVICE_ERROR, 0);
+    return {};
+}
+
 
 bool EvsCamera::setAvailableFrames_Locked(unsigned bufferCount) {
     if (bufferCount < 1) {
diff --git a/automotive/evs/1.1/default/EvsCamera.h b/automotive/evs/1.1/default/EvsCamera.h
index 0fa83b4..6163a34 100644
--- a/automotive/evs/1.1/default/EvsCamera.h
+++ b/automotive/evs/1.1/default/EvsCamera.h
@@ -82,6 +82,8 @@
                                           const hidl_vec<uint8_t>& opaqueValue) override;
     Return<void>      getExtendedInfo_1_1(uint32_t opaqueIdentifier,
                                           getExtendedInfo_1_1_cb _hidl_cb) override;
+    Return<void>      importExternalBuffers(const hidl_vec<BufferDesc_1_1>& buffers,
+                                            importExternalBuffers_cb _hidl_cb) override;
 
     static sp<EvsCamera> Create(const char *deviceName);
     static sp<EvsCamera> Create(const char *deviceName,
diff --git a/automotive/evs/1.1/types.hal b/automotive/evs/1.1/types.hal
index b34e7e7..1f69f09 100644
--- a/automotive/evs/1.1/types.hal
+++ b/automotive/evs/1.1/types.hal
@@ -70,6 +70,9 @@
      */
     int64_t timestamp;
 
+    /**
+     * Frame metadata.  This is opaque to EVS manager.
+     */
     vec<uint8_t> metadata;
 };