diff --git a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/ITuner.aidl b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/ITuner.aidl
index 0ff2da9..5d1d215 100644
--- a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/ITuner.aidl
+++ b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/ITuner.aidl
@@ -47,4 +47,5 @@
   void setLna(in boolean bEnable);
   void setMaxNumberOfFrontends(in android.hardware.tv.tuner.FrontendType frontendType, in int maxNumber);
   int getMaxNumberOfFrontends(in android.hardware.tv.tuner.FrontendType frontendType);
+  boolean isLnaSupported();
 }
diff --git a/tv/tuner/aidl/android/hardware/tv/tuner/ITuner.aidl b/tv/tuner/aidl/android/hardware/tv/tuner/ITuner.aidl
index 03def33..4a0b7a2 100644
--- a/tv/tuner/aidl/android/hardware/tv/tuner/ITuner.aidl
+++ b/tv/tuner/aidl/android/hardware/tv/tuner/ITuner.aidl
@@ -125,6 +125,9 @@
     /**
      * Enable or Disable Low Noise Amplifier (LNA).
      *
+     * If the device doesn't support LNA, the HAL implement should set {@link Result#UNAVAILABLE}
+     * to EX_SERVICE_SPECIFIC as the service specific error.
+     *
      * @param bEnable true if activate LNA module; false if deactivate LNA
      */
     void setLna(in boolean bEnable);
@@ -148,4 +151,11 @@
      * @return the maximum usable number of the queried frontend type.
      */
     int getMaxNumberOfFrontends(in FrontendType frontendType);
+
+    /**
+     * Is Low Noise Amplifier (LNA) supported.
+     *
+     * @return true if supported, otherwise false
+     */
+    boolean isLnaSupported();
 }
diff --git a/tv/tuner/aidl/default/Tuner.cpp b/tv/tuner/aidl/default/Tuner.cpp
index 591f936..8c715a0 100644
--- a/tv/tuner/aidl/default/Tuner.cpp
+++ b/tv/tuner/aidl/default/Tuner.cpp
@@ -204,6 +204,13 @@
     return ::ndk::ScopedAStatus::ok();
 }
 
+::ndk::ScopedAStatus Tuner::isLnaSupported(bool* _aidl_return) {
+    ALOGV("%s", __FUNCTION__);
+
+    *_aidl_return = true;
+    return ::ndk::ScopedAStatus::ok();
+}
+
 binder_status_t Tuner::dump(int fd, const char** args, uint32_t numArgs) {
     ALOGV("%s", __FUNCTION__);
     {
diff --git a/tv/tuner/aidl/default/Tuner.h b/tv/tuner/aidl/default/Tuner.h
index ad73003..a77c930 100644
--- a/tv/tuner/aidl/default/Tuner.h
+++ b/tv/tuner/aidl/default/Tuner.h
@@ -61,6 +61,7 @@
                                                  int32_t in_maxNumber) override;
     ::ndk::ScopedAStatus getMaxNumberOfFrontends(FrontendType in_frontendType,
                                                  int32_t* _aidl_return) override;
+    ::ndk::ScopedAStatus isLnaSupported(bool* _aidl_return) override;
 
     binder_status_t dump(int fd, const char** args, uint32_t numArgs) override;