diff --git a/drm/libmediadrm/include/mediadrm/CryptoHal.h b/drm/libmediadrm/include/mediadrm/CryptoHal.h
index c9fda67..5fd39e6 100644
--- a/drm/libmediadrm/include/mediadrm/CryptoHal.h
+++ b/drm/libmediadrm/include/mediadrm/CryptoHal.h
@@ -22,6 +22,7 @@
 #include <android/hardware/drm/1.0/ICryptoPlugin.h>
 #include <android/hardware/drm/1.1/ICryptoFactory.h>
 #include <android/hardware/drm/1.2/ICryptoPlugin.h>
+#include <android/hardware/drm/1.4/ICryptoPlugin.h>
 
 #include <mediadrm/ICrypto.h>
 #include <utils/KeyedVector.h>
@@ -71,6 +72,8 @@
     }
     virtual void unsetHeap(int32_t seqNum) { clearHeapBase(seqNum); }
 
+    virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const;
+
 private:
     mutable Mutex mLock;
 
diff --git a/drm/libmediadrm/include/mediadrm/DrmHal.h b/drm/libmediadrm/include/mediadrm/DrmHal.h
index 2fd4d81..a0aac30 100644
--- a/drm/libmediadrm/include/mediadrm/DrmHal.h
+++ b/drm/libmediadrm/include/mediadrm/DrmHal.h
@@ -26,6 +26,7 @@
 #include <android/hardware/drm/1.2/IDrmPlugin.h>
 #include <android/hardware/drm/1.2/IDrmPluginListener.h>
 #include <android/hardware/drm/1.4/IDrmPlugin.h>
+#include <android/hardware/drm/1.4/types.h>
 
 #include <media/drm/DrmAPI.h>
 #include <mediadrm/DrmMetrics.h>
@@ -188,6 +189,8 @@
             Vector<uint8_t> const &sessionId,
             const char *playbackId);
 
+    virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const;
+
     // Methods of IDrmPluginListener
     Return<void> sendEvent(EventType eventType,
             const hidl_vec<uint8_t>& sessionId, const hidl_vec<uint8_t>& data);
diff --git a/drm/libmediadrm/include/mediadrm/IDrm.h b/drm/libmediadrm/include/mediadrm/IDrm.h
index ed71eee..b5bc73d 100644
--- a/drm/libmediadrm/include/mediadrm/IDrm.h
+++ b/drm/libmediadrm/include/mediadrm/IDrm.h
@@ -24,6 +24,15 @@
 #define ANDROID_IDRM_H_
 
 namespace android {
+namespace hardware {
+namespace drm {
+namespace V1_4 {
+struct LogMessage;
+}  // namespace V1_4
+}  // namespace drm
+}  // namespace hardware
+
+namespace drm = ::android::hardware::drm;
 
 struct AString;
 
@@ -153,9 +162,12 @@
             DrmPlugin::SecurityLevel securityLevel) const = 0;
 
     virtual status_t setPlaybackId(
+
             Vector<uint8_t> const &sessionId,
             const char *playbackId) = 0;
 
+    virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const = 0;
+
 protected:
     IDrm() {}