tag	line	file	source code
HUPCL	824	drivers/char/serial.c	if (info->tty && !(info->tty->termios->c_cflag & HUPCL))
HUPCL	1620	drivers/char/tty_io.c	tp->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;