diff --git a/gralloc/gralloc_drm.h b/gralloc/gralloc_drm.h
new file mode 100644
index 0000000..0ece652
--- /dev/null
+++ b/gralloc/gralloc_drm.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
+ * Copyright (C) 2010-2011 LunarG Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _GRALLOC_DRM_H_
+#define _GRALLOC_DRM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+	/* perform(const struct gralloc_module_t *mod,
+	 *	   int op,
+	 *	   int *fd);
+	 */
+	GRALLOC_MODULE_PERFORM_GET_DRM_FD                = 0x40000002,
+};
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _GRALLOC_DRM_H_ */