diff --git a/media/libaudiohal/impl/DeviceHalHidl.cpp b/media/libaudiohal/impl/DeviceHalHidl.cpp
index 3180b7d..f247658 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalHidl.cpp
@@ -515,6 +515,18 @@
     return processReturn("setConnectedState", mDevice->setConnectedState(hidlAddress, connected));
 }
 
+error::Result<audio_hw_sync_t> DeviceHalHidl::getHwAvSync() {
+    if (mDevice == 0) return NO_INIT;
+    audio_hw_sync_t value;
+    Result result;
+    Return<void> ret = mDevice->getHwAvSync([&value, &result](Result r, audio_hw_sync_t v) {
+        value = v;
+        result = r;
+    });
+    RETURN_IF_ERROR(processReturn("getHwAvSync", ret, result));
+    return value;
+}
+
 status_t DeviceHalHidl::dump(int fd, const Vector<String16>& args) {
     if (mDevice == 0) return NO_INIT;
     native_handle_t* hidlHandle = native_handle_create(1, 0);
diff --git a/media/libaudiohal/impl/DeviceHalHidl.h b/media/libaudiohal/impl/DeviceHalHidl.h
index cd9535e..8a97a55 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.h
+++ b/media/libaudiohal/impl/DeviceHalHidl.h
@@ -134,6 +134,8 @@
 
     status_t setConnectedState(const struct audio_port_v7 *port, bool connected) override;
 
+    error::Result<audio_hw_sync_t> getHwAvSync() override;
+
     status_t dump(int fd, const Vector<String16>& args) override;
 
   private:
diff --git a/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h b/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
index 9ca7118..d27ad4c 100644
--- a/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
@@ -19,6 +19,7 @@
 
 #include <android/media/audio/common/AudioMMapPolicyInfo.h>
 #include <android/media/audio/common/AudioMMapPolicyType.h>
+#include <error/Result.h>
 #include <media/audiohal/EffectHalInterface.h>
 #include <media/MicrophoneInfo.h>
 #include <system/audio.h>
@@ -131,6 +132,8 @@
     // Update the connection status of an external device.
     virtual status_t setConnectedState(const struct audio_port_v7 *port, bool connected) = 0;
 
+    virtual error::Result<audio_hw_sync_t> getHwAvSync() = 0;
+
     virtual status_t dump(int fd, const Vector<String16>& args) = 0;
 
   protected: