diff --git a/gnss/1.1/default/Gnss.h b/gnss/1.1/default/Gnss.h
new file mode 100644
index 0000000..e9ad34b
--- /dev/null
+++ b/gnss/1.1/default/Gnss.h
@@ -0,0 +1,79 @@
+#ifndef ANDROID_HARDWARE_GNSS_V1_1_GNSS_H
+#define ANDROID_HARDWARE_GNSS_V1_1_GNSS_H
+
+#include <android/hardware/gnss/1.1/IGnss.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+struct Gnss : public IGnss {
+    // Methods from ::android::hardware::gnss::V1_0::IGnss follow.
+    Return<bool> setCallback(
+        const sp<::android::hardware::gnss::V1_0::IGnssCallback>& callback) override;
+    Return<bool> start() override;
+    Return<bool> stop() override;
+    Return<void> cleanup() override;
+    Return<bool> injectTime(int64_t timeMs, int64_t timeReferenceMs,
+                            int32_t uncertaintyMs) override;
+    Return<bool> injectLocation(double latitudeDegrees, double longitudeDegrees,
+                                float accuracyMeters) override;
+    Return<void> deleteAidingData(
+        ::android::hardware::gnss::V1_0::IGnss::GnssAidingData aidingDataFlags) override;
+    Return<bool> setPositionMode(
+        ::android::hardware::gnss::V1_0::IGnss::GnssPositionMode mode,
+        ::android::hardware::gnss::V1_0::IGnss::GnssPositionRecurrence recurrence,
+        uint32_t minIntervalMs, uint32_t preferredAccuracyMeters,
+        uint32_t preferredTimeMs) override;
+    Return<sp<::android::hardware::gnss::V1_0::IAGnssRil>> getExtensionAGnssRil() override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssGeofencing>> getExtensionGnssGeofencing()
+        override;
+    Return<sp<::android::hardware::gnss::V1_0::IAGnss>> getExtensionAGnss() override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssNi>> getExtensionGnssNi() override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssMeasurement>> getExtensionGnssMeasurement()
+        override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssNavigationMessage>>
+    getExtensionGnssNavigationMessage() override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssXtra>> getExtensionXtra() override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssConfiguration>> getExtensionGnssConfiguration()
+        override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssDebug>> getExtensionGnssDebug() override;
+    Return<sp<::android::hardware::gnss::V1_0::IGnssBatching>> getExtensionGnssBatching() override;
+
+    // Methods from ::android::hardware::gnss::V1_1::IGnss follow.
+    Return<bool> setCallback_1_1(
+        const sp<::android::hardware::gnss::V1_1::IGnssCallback>& callback) override;
+    Return<bool> setPositionMode_1_1(
+        ::android::hardware::gnss::V1_0::IGnss::GnssPositionMode mode,
+        ::android::hardware::gnss::V1_0::IGnss::GnssPositionRecurrence recurrence,
+        uint32_t minIntervalMs, uint32_t preferredAccuracyMeters, uint32_t preferredTimeMs,
+        bool lowPowerMode) override;
+    Return<sp<::android::hardware::gnss::V1_1::IGnssConfiguration>>
+    getExtensionGnssConfiguration_1_1() override;
+    Return<sp<::android::hardware::gnss::V1_1::IGnssMeasurement>> getExtensionGnssMeasurement_1_1()
+        override;
+    Return<bool> injectBestLocation(
+        const ::android::hardware::gnss::V1_0::GnssLocation& location) override;
+
+    // Methods from ::android::hidl::base::V1_0::IBase follow.
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_V1_1_GNSS_H