taglinefilesource code
buf_num1651drivers/char/tty_io.cif (tty->flip.buf_num) {
buf_num1654drivers/char/tty_io.ctty->flip.buf_num = 0;
buf_num1662drivers/char/tty_io.ctty->flip.buf_num = 1;
buf_num92include/linux/tty.hint    buf_num;