bmp280_calc_t_fine
t_fine = bmp280_calc_t_fine(data, adc_temp);
t_fine = bmp280_calc_t_fine(data, adc_temp);
*t_fine = bmp280_calc_t_fine(data, adc_temp);
return (bmp280_calc_t_fine(data, adc_temp) * 5 + 128) / 256;