diff --git a/hwc3/DrmHwcThree.h b/hwc3/DrmHwcThree.h
new file mode 100644
index 0000000..c2d4119
--- /dev/null
+++ b/hwc3/DrmHwcThree.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/graphics/composer3/IComposerCallback.h>
+
+#include "drm/DrmHwc.h"
+
+namespace aidl::android::hardware::graphics::composer3::impl {
+
+class DrmHwcThree : public ::android::DrmHwc {
+ public:
+  DrmHwcThree() = default;
+  ~DrmHwcThree() override = default;
+
+  void Init(std::shared_ptr<IComposerCallback> callback);
+
+  // DrmHwcInterface
+  void SendVsyncEventToClient(hwc2_display_t display_id, int64_t timestamp,
+                              uint32_t vsync_period) const override;
+  void SendVsyncPeriodTimingChangedEventToClient(
+      hwc2_display_t display_id, int64_t timestamp) const override;
+  void SendRefreshEventToClient(uint64_t display_id) override;
+  void SendHotplugEventToClient(hwc2_display_t display_id,
+                                bool connected) override;
+
+ private:
+  std::shared_ptr<IComposerCallback> composer_callback_;
+};
+}  // namespace aidl::android::hardware::graphics::composer3::impl