diff --git a/include/media/audiohal/DeviceHalInterface.h b/include/media/audiohal/DeviceHalInterface.h
index 2f7ed3a..caf01be 100644
--- a/include/media/audiohal/DeviceHalInterface.h
+++ b/include/media/audiohal/DeviceHalInterface.h
@@ -33,9 +33,6 @@
     // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
     virtual status_t getSupportedDevices(uint32_t *devices) = 0;
 
-    // Get the hardware module version.
-    virtual status_t getVersion(uint32_t *version) = 0;
-
     // Check to see if the audio hardware interface has been initialized.
     virtual status_t initCheck() = 0;
 
@@ -88,6 +85,9 @@
             audio_source_t source,
             sp<StreamInHalInterface> *inStream) = 0;
 
+    // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+    virtual status_t supportsAudioPatches(bool *supportsPatches) = 0;
+
     // Creates an audio patch between several source and sink ports.
     virtual status_t createAudioPatch(
             unsigned int num_sources,