diff --git a/include/linux/vt.h b/include/linux/vt.h
index d5dd0bc..30a8dd9 100644
--- a/include/linux/vt.h
+++ b/include/linux/vt.h
@@ -86,6 +86,13 @@
 
 #ifdef __KERNEL__
 
+/* Virtual Terminal events. */
+#define VT_ALLOCATE		0x0001 /* Console got allocated */
+#define VT_DEALLOCATE		0x0002 /* Console will be deallocated */
+#define VT_WRITE		0x0003 /* A char got output */
+#define VT_UPDATE		0x0004 /* A bigger update occurred */
+#define VT_PREWRITE		0x0005 /* A char is about to be written to the console */
+
 #ifdef CONFIG_VT_CONSOLE
 
 extern int vt_kmsg_redirect(int new);