diff --git a/include/hardware/hardware.h b/include/hardware/hardware.h
index 74f57aa..bf076f6 100644
--- a/include/hardware/hardware.h
+++ b/include/hardware/hardware.h
@@ -201,6 +201,12 @@
 
 } hw_device_t;
 
+#ifdef __cplusplus
+#define TO_HW_DEVICE_T_OPEN(x) reinterpret_cast<struct hw_device_t**>(x)
+#else
+#define TO_HW_DEVICE_T_OPEN(x) (struct hw_device_t**)(x)
+#endif
+
 /**
  * Name of the hal_module_info
  */