+#ifdef __KERNEL__
+struct notifier_block;
+
+struct vt_notifier_param {
+ struct vc_data *vc; /* VC on which the update happened */
+ unsigned int c; /* Printed char */
+};
+
+extern int register_vt_notifier(struct notifier_block *nb);
+extern int unregister_vt_notifier(struct notifier_block *nb);
+#endif
+