void serio_unregister_child_port(struct serio *serio);
int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name);
void serio_unregister_child_port(struct serio *serio);
int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name);