diff --git a/include/linux/input.h b/include/linux/input.h
index be2bf3a..48f1ad6 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -603,6 +603,7 @@
 #define SW_LID			0x00  /* set = lid shut */
 #define SW_TABLET_MODE		0x01  /* set = tablet mode */
 #define SW_HEADPHONE_INSERT	0x02  /* set = inserted */
+#define SW_RADIO		0x03  /* set = radio enabled */
 #define SW_MAX			0x0f
 
 /*