ttysetup
ttyerror = ttysetup(fd,(speed_t)baud_rate);
int ttysetup(int, speed_t);
if (ttysetup((speed_t)BR) != 0) {
if (ttysetup((speed_t)BR) != 0) {
if (ttysetup((speed_t)number(value(BAUDRATE))) != 0) {
if (ttysetup((speed_t)number(value(BAUDRATE))) != 0) {
int ttysetup(speed_t);