HUPCL             148 include/linux/tty.h #define C_HUPCL(tty)	_C_FLAG((tty), HUPCL)
HUPCL            1170 net/bluetooth/rfcomm/tty.c 	rfcomm_tty_driver->init_termios.c_cflag	= B9600 | CS8 | CREAD | HUPCL | CLOCAL;
HUPCL             131 net/irda/ircomm/ircomm_tty.c 	driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;