2 tcflag_t c_iflag; /* input mode flagss */
3 tcflag_t c_oflag; /* output modes flags */
4 tcflag_t c_cflag; /* control modes flags */
5 tcflag_t c_lflag; /* local modes flags */
6 cc_t c_line; /* line discipline */
7 cc_t c_cc[NCCS]; /* control characters */
8 speed_t c_ispeed; /* input speed */
9 speed_t c_ospeed; /* output speed */