struct tty_driver *driver, unsigned index,
struct device *device, void *drvdata,
const struct attribute_group **attr_grp);
+extern struct device *tty_port_register_device_serdev(struct tty_port *port,
+ struct tty_driver *driver, unsigned index,
+ struct device *device);
+extern struct device *tty_port_register_device_attr_serdev(struct tty_port *port,
+ struct tty_driver *driver, unsigned index,
+ struct device *device, void *drvdata,
+ const struct attribute_group **attr_grp);
+extern void tty_port_unregister_device(struct tty_port *port,
+ struct tty_driver *driver, unsigned index);
extern int tty_port_alloc_xmit_buf(struct tty_port *port);
extern void tty_port_free_xmit_buf(struct tty_port *port);
extern void tty_port_destroy(struct tty_port *port);