diff --git a/audio/4.0/IDevice.hal b/audio/4.0/IDevice.hal
index bb58568..7eb03c8 100644
--- a/audio/4.0/IDevice.hal
+++ b/audio/4.0/IDevice.hal
@@ -268,4 +268,16 @@
      */
     getMicrophones()
          generates(Result retval, vec<MicrophoneInfo> microphones);
+
+    /**
+     * Notifies the device module about the connection state of an input/output
+     * device attached to it. Calling this method is equivalent to setting
+     * AUDIO_PARAMETER_DEVICE_[DIS]CONNECT on the legacy HAL.
+     *
+     * @param address audio device specification.
+     * @param connected whether the device is connected.
+     * @return retval operation completion status.
+     */
+    setConnectedState(DeviceAddress address, bool connected)
+            generates (Result retval);
 };
diff --git a/audio/4.0/IStream.hal b/audio/4.0/IStream.hal
index f05d7b0..36b5ed2 100644
--- a/audio/4.0/IStream.hal
+++ b/audio/4.0/IStream.hal
@@ -197,18 +197,6 @@
     setDevice(DeviceAddress address) generates (Result retval);
 
     /**
-     * Notifies the stream about device connection state. Calling this method is
-     * equivalent to setting AUDIO_PARAMETER_DEVICE_[DIS]CONNECT on the legacy
-     * HAL.
-     *
-     * @param address audio device specification.
-     * @param connected whether the device is connected.
-     * @return retval operation completion status.
-     */
-    setConnectedState(DeviceAddress address, bool connected)
-            generates (Result retval);
-
-    /**
      * Sets the HW synchronization source. Calling this method is equivalent to
      * setting AUDIO_PARAMETER_STREAM_HW_AV_SYNC on the legacy HAL.
      * Optional method