--- zzzz-none-000/linux-4.1.52/include/linux/tty_driver.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/tty_driver.h	2022-03-02 11:37:13.000000000 +0000
@@ -290,6 +290,9 @@
 	int (*poll_get_char)(struct tty_driver *driver, int line);
 	void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
 #endif
+#if defined(CONFIG_AVM_ENHANCED)
+	int (*avm_console_enabled)(struct tty_struct *tty);
+#endif
 	const struct file_operations *proc_fops;
 };