97 static int tpk_open(struct tty_struct *tty, struct file *filp)  in tpk_open()  argument
99 	tty->driver_data = &tpk_port;  in tpk_open()
101 	return tty_port_open(&tpk_port.port, tty, filp);  in tpk_open()
107 static void tpk_close(struct tty_struct *tty, struct file *filp)  in tpk_close()  argument
109 	struct ttyprintk_port *tpkp = tty->driver_data;  in tpk_close()
116 	tty_port_close(&tpkp->port, tty, filp);  in tpk_close()
122 static int tpk_write(struct tty_struct *tty,  in tpk_write()  argument
125 	struct ttyprintk_port *tpkp = tty->driver_data;  in tpk_write()
140 static int tpk_write_room(struct tty_struct *tty)  in tpk_write_room()  argument
148 static int tpk_ioctl(struct tty_struct *tty,  in tpk_ioctl()  argument
151 	struct ttyprintk_port *tpkp = tty->driver_data;  in tpk_ioctl()