in ev3-api/src/ev3api_sensor.c [158:173]
colorid_t ev3_color_sensor_get_color(sensor_port_t port) {
ER ercd;
// lazy_initialize();
CHECK_PORT(port);
CHECK_COND(ev3_sensor_get_type(port) == COLOR_SENSOR, E_OBJ);
colorid_t val;
uart_sensor_fetch_data(port, COL_COLOR, &val, sizeof(val));
assert(val >= COLOR_NONE && val < TNUM_COLOR);
return val;
error_exit:
syslog(LOG_WARNING, "%s(): ercd %d", __FUNCTION__, ercd);
return COLOR_NONE;
}