taglinefilesource code
IXOFF1361drivers/char/stallion.cif (tty->termios->c_iflag & IXOFF) {
IXOFF1401drivers/char/stallion.cif (tty->termios->c_iflag & IXOFF) {
IXOFF140include/linux/tty.h#define I_IXOFF(tty)  _I_FLAG((tty),IXOFF)