diff --git a/include/linux/serio.h b/include/linux/serio.h
index 95674d9..36c6ab8 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -212,5 +212,6 @@
 #define SERIO_TAOSEVM	0x34
 #define SERIO_FUJITSU	0x35
 #define SERIO_ZHENHUA	0x36
+#define SERIO_INEXIO	0x37
 
 #endif