int (*chars_in_buffer)(struct tty_struct *tty);
void (*throttle)(struct tty_struct *tty);
void (*unthrottle)(struct tty_struct *tty);
- int (*tiocmget)(struct tty_struct *tty, struct file *file);
+ int (*tiocmget)(struct tty_struct *tty);
int (*tiocmset)(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
+ int (*get_icount)(struct tty_struct *tty,
+ struct serial_icounter_struct *icount);
/* Called by the tty layer for port level work. There may or may not
be an attached tty at this point */
void (*dtr_rts)(struct usb_serial_port *port, int on);
extern int usb_serial_handle_sysrq_char(struct usb_serial_port *port,
unsigned int ch);
extern int usb_serial_handle_break(struct usb_serial_port *port);
+extern void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port,
+ struct tty_struct *tty,
+ unsigned int status);
extern int usb_serial_bus_register(struct usb_serial_driver *device);