216 	int (*activate)(struct tty_port *port, struct tty_struct *tty);
223 	struct tty_struct	*tty;		/* Back pointer */
224 	struct tty_struct	*itty;		/* internal back ptr */
260 struct tty_struct {  struct
298 	struct tty_struct *link;  argument
320 	struct tty_struct *tty;  argument
354 static inline void __tty_set_flow_change(struct tty_struct *tty, int val)  in __tty_set_flow_change()
359 static inline void tty_set_flow_change(struct tty_struct *tty, int val)  in tty_set_flow_change()
367 extern void tty_kref_put(struct tty_struct *tty);
368 extern struct pid *tty_get_pgrp(struct tty_struct *tty);
371 extern dev_t tty_devnum(struct tty_struct *tty);
373 extern struct tty_struct *get_current_tty(void);
379 static inline void tty_kref_put(struct tty_struct *tty)  in tty_kref_put()
381 static inline struct pid *tty_get_pgrp(struct tty_struct *tty)  in tty_get_pgrp()
387 static inline dev_t tty_devnum(struct tty_struct *tty)  in tty_devnum()
391 static inline struct tty_struct *get_current_tty(void)  in get_current_tty()
398 extern void tty_write_flush(struct tty_struct *);
415 static inline struct tty_struct *tty_kref_get(struct tty_struct *tty)  in tty_kref_get()
422 extern int tty_paranoia_check(struct tty_struct *tty, struct inode *inode,
424 extern char *tty_name(struct tty_struct *tty, char *buf);
425 extern void tty_wait_until_sent(struct tty_struct *tty, long timeout);
426 extern int tty_check_change(struct tty_struct *tty);
427 extern void __stop_tty(struct tty_struct *tty);
428 extern void stop_tty(struct tty_struct *tty);
429 extern void __start_tty(struct tty_struct *tty);
430 extern void start_tty(struct tty_struct *tty);
440 extern int tty_read_raw_data(struct tty_struct *tty, unsigned char *bufp,
442 extern void tty_write_message(struct tty_struct *tty, char *msg);
443 extern int tty_send_xchar(struct tty_struct *tty, char ch);
444 extern int tty_put_char(struct tty_struct *tty, unsigned char c);
445 extern int tty_chars_in_buffer(struct tty_struct *tty);
446 extern int tty_write_room(struct tty_struct *tty);
447 extern void tty_driver_flush_buffer(struct tty_struct *tty);
448 extern void tty_throttle(struct tty_struct *tty);
449 extern void tty_unthrottle(struct tty_struct *tty);
450 extern int tty_throttle_safe(struct tty_struct *tty);
451 extern int tty_unthrottle_safe(struct tty_struct *tty);
452 extern int tty_do_resize(struct tty_struct *tty, struct winsize *ws);
454 				  struct tty_struct *tty);
455 extern void tty_free_termios(struct tty_struct *tty);
458 extern int tty_signal(int sig, struct tty_struct *tty);
459 extern void tty_hangup(struct tty_struct *tty);
460 extern void tty_vhangup(struct tty_struct *tty);
462 extern void do_SAK(struct tty_struct *tty);
463 extern void __do_SAK(struct tty_struct *tty);
466 extern void tty_buffer_flush(struct tty_struct *tty, struct tty_ldisc *ld);
474 extern void tty_encode_baud_rate(struct tty_struct *tty,
487 static inline speed_t tty_get_baud_rate(struct tty_struct *tty)  in tty_get_baud_rate()
494 extern int tty_set_termios(struct tty_struct *tty, struct ktermios *kt);
496 extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
498 extern struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *);
499 extern void tty_ldisc_hangup(struct tty_struct *tty);
502 extern void tty_wakeup(struct tty_struct *tty);
503 extern void tty_ldisc_flush(struct tty_struct *tty);
506 extern int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
508 extern int tty_perform_flush(struct tty_struct *tty, unsigned long arg);
510 extern struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx);
512 extern void tty_add_file(struct tty_struct *tty, struct file *file);
514 extern void free_tty_struct(struct tty_struct *tty);
515 extern void deinitialize_tty_struct(struct tty_struct *tty);
516 extern struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx);
518 extern int tty_init_termios(struct tty_struct *tty);
520 		struct tty_struct *tty);
555 extern struct tty_struct *tty_port_tty_get(struct tty_port *port);
556 extern void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty);
564 				struct tty_struct *tty, struct file *filp);
566 				struct tty_struct *tty, struct file *filp);
567 extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty);
569 				struct tty_struct *tty, struct file *filp);
571 				struct tty_struct *tty);
573 				struct tty_struct *tty, struct file *filp);
581 extern int tty_set_ldisc(struct tty_struct *tty, int ldisc);
582 extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty);
583 extern void tty_ldisc_release(struct tty_struct *tty);
584 extern void tty_ldisc_init(struct tty_struct *tty);
585 extern void tty_ldisc_deinit(struct tty_struct *tty);
608 extern void tty_audit_add_data(struct tty_struct *tty, const void *data,
612 extern void tty_audit_tiocsti(struct tty_struct *tty, char ch);
613 extern void tty_audit_push(struct tty_struct *tty);
616 static inline void tty_audit_add_data(struct tty_struct *tty, const void *data,  in tty_audit_add_data()
620 static inline void tty_audit_tiocsti(struct tty_struct *tty, char ch)  in tty_audit_tiocsti()
629 static inline void tty_audit_push(struct tty_struct *tty)  in tty_audit_push()
639 extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
641 extern long n_tty_compat_ioctl_helper(struct tty_struct *tty, struct file *file,
646 extern int vt_ioctl(struct tty_struct *tty,
649 extern long vt_compat_ioctl(struct tty_struct *tty,
654 extern void __lockfunc tty_lock(struct tty_struct *tty);
655 extern void __lockfunc tty_unlock(struct tty_struct *tty);
656 extern void __lockfunc tty_lock_slave(struct tty_struct *tty);
657 extern void __lockfunc tty_unlock_slave(struct tty_struct *tty);
658 extern void tty_set_lock_subclass(struct tty_struct *tty);
669 static inline void tty_wait_until_sent_from_close(struct tty_struct *tty,  in tty_wait_until_sent_from_close()