IT87_REG_TEMP_ENABLE
reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);