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diff --git a/histogram/histogram.h b/histogram/histogram.h
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+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifndef HISTOGRAM_GS201_H_
+#define HISTOGRAM_GS201_H_
+
+#include <../gs101/include/histogram/HistogramInfo.h>
+#include <../gs101/include/histogram/histogram_control.h>
+#include <aidl/com/google/hardware/pixel/display/HistogramPos.h>
+
+using HistogramPos =
+    ::aidl::com::google::hardware::pixel::display::HistogramPos;
+
+class IDLHistogram : public HistogramInfo {
+ public:
+  IDLHistogram() : HistogramInfo(HistogramType::HISTOGRAM_HIDL) {}
+  virtual ~IDLHistogram() {}
+  virtual void setHistogramPos(HistogramPos pos) { mHistogramPos = pos; }
+  HistogramPos getHistogramPos() { return mHistogramPos; }
+
+ private:
+  HistogramPos mHistogramPos = HistogramPos::POST;
+};
+
+#endif  // HISTOGRAM_GS201_H_