SI70XX_READ_HEATER_REG
case SI70XX_READ_HEATER_REG:
error = si70xx_cmd1(sc, SI70XX_READ_HEATER_REG, &heaterregister, 1);
error = si70xx_cmd1(sc, SI70XX_READ_HEATER_REG, &heaterregister, 1);
error = si70xx_cmd1(sc, SI70XX_READ_HEATER_REG, &heaterregister, 1);