cd1400_compute_baud
if( t->c_ospeed && cd1400_compute_baud(t->c_ospeed, cd->cd_clock, &tcor, &tbpr) )
if( t->c_ispeed && cd1400_compute_baud(t->c_ispeed, cd->cd_clock, &rcor, &rbpr) )
if (cd1400_compute_baud(100000, cd->cd_clock, &rcor, &rbpr)) {
int cd1400_compute_baud(speed_t, int, int *, int *);