diff --git a/include/camera/ICameraService.h b/include/camera/ICameraService.h
index d7e5dac..f7f06bb 100644
--- a/include/camera/ICameraService.h
+++ b/include/camera/ICameraService.h
@@ -52,6 +52,7 @@
         GET_CAMERA_VENDOR_TAG_DESCRIPTOR,
         GET_LEGACY_PARAMETERS,
         SUPPORTS_CAMERA_API,
+        CONNECT_LEGACY,
     };
 
     enum {
@@ -63,6 +64,10 @@
         API_VERSION_2 = 2,
     };
 
+    enum {
+        CAMERA_HAL_API_VERSION_UNSPECIFIED = -1
+      };
+
 public:
     DECLARE_META_INTERFACE(CameraService);
 
@@ -125,6 +130,18 @@
      */
     virtual status_t supportsCameraApi(
             int cameraId, int apiVersion) = 0;
+
+    /**
+     * Connect the device as a legacy device for a given HAL version.
+     * For halVersion, use CAMERA_API_DEVICE_VERSION_* for a particular
+     * version, or CAMERA_HAL_API_VERSION_UNSPECIFIED for a service-selected version.
+     */
+    virtual status_t connectLegacy(const sp<ICameraClient>& cameraClient,
+            int cameraId, int halVersion,
+            const String16& clientPackageName,
+            int clientUid,
+            /*out*/
+            sp<ICamera>& device) = 0;
 };
 
 // ----------------------------------------------------------------------------