100 static void ptcwakeup(struct tty *tp, int flag);
258 ptsopen(dev_t dev, int flag, __unused int devtype, __unused struct proc *p)  in ptsopen()  argument
291 		if (flag & FNONBLOCK) {  in ptsopen()
320 ptsclose(dev_t dev, int flag, __unused int mode, __unused proc_t p)  in ptsclose()  argument
350 	err = (*linesw[tp->t_line].l_close)(tp, flag);  in ptsclose()
362 	if ((flag & IO_REVOKE) == IO_REVOKE && driver->revoke) {  in ptsclose()
372 ptsread(dev_t dev, struct uio *uio, int flag)  in ptsread()  argument
387 		error = (*linesw[tp->t_line].l_read)(tp, uio, flag);  in ptsread()
400 ptswrite(dev_t dev, struct uio *uio, int flag)  in ptswrite()  argument
415 		error = (*linesw[tp->t_line].l_write)(tp, uio, flag);  in ptswrite()
464 ptcwakeup(struct tty *tp, int flag)  in ptcwakeup()  argument
471 	if (flag & FREAD) {  in ptcwakeup()
476 	if (flag & FWRITE) {  in ptcwakeup()
484 ptcopen(dev_t dev, __unused int flag, __unused int devtype, __unused proc_t p)  in ptcopen()  argument
617 ptcread(dev_t dev, struct uio *uio, int flag)  argument
682 		if (flag & IO_NDELAY) {
718 	int flag;  local
733 	flag = 0;
735 		flag |= FWRITE;
738 		flag |= FREAD;
740 	ptcwakeup(tp, flag);
877 ptcwrite(dev_t dev, struct uio *uio, int flag)  argument
941 	if (flag & IO_NDELAY) {
962 ptyioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)  argument
1142 			error = ttioctl_locked(tp, cmd, data, flag, p);
1156 	error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
1158 		error = ttioctl_locked(tp, cmd, data, flag, p);