diff --git a/drmproperty.h b/drmproperty.h
index 5b40c4c..2d92ca1 100644
--- a/drmproperty.h
+++ b/drmproperty.h
@@ -48,6 +48,10 @@
   std::tuple<int, uint64_t> value() const;
   bool is_immutable() const;
 
+  bool is_range() const;
+  std::tuple<int, uint64_t> range_min() const;
+  std::tuple<int, uint64_t> range_max() const;
+
  private:
   class DrmPropertyEnum {
    public: