Local modes and line disciplines

The local-modes field c_lflag specifies the ``line-discipline'' for the terminal. The line-discipline works as described in ``Canonical mode input processing'' and ``Non-canonical mode input processing'' and the value of c_lflag along with the value of c_iflag determine how the line-discipline acts on input from a terminal-device-file (see ``Local modes and line disciplines'' and ``Input modes'' in termio(7)).