191 struct console {  struct
193 	void			(*write)(struct console *co, const char *s, unsigned int count);  argument
194 	int			(*read)(struct console *co, char *s, unsigned int count);  argument
195 	struct tty_driver	*(*device)(struct console *co, int *index);  argument
197 	int			(*setup)(struct console *co, char *options);  argument
198 	int			(*exit)(struct console *co);  argument
199 	int			(*match)(struct console *co, char *name, int idx, char *options);  argument
250 static inline short console_srcu_read_flags(const struct console *con)  in console_srcu_read_flags()
273 static inline void console_srcu_write_flags(struct console *con, short flags)  in console_srcu_write_flags()
282 static inline bool console_is_registered_locked(const struct console *con)  in console_is_registered_locked()
299 static inline bool console_is_registered(const struct console *con)  in console_is_registered()
336 extern struct console *early_console;
344 extern void console_force_preferred_locked(struct console *con);
345 extern void register_console(struct console *);
346 extern int unregister_console(struct console *);
354 extern void console_stop(struct console *);
355 extern void console_start(struct console *);
357 extern int braille_register_console(struct console *, int index,
359 extern int braille_unregister_console(struct console *);