ad5110_write
ret = ad5110_write(data, AD5110_EEPROM_WR, 0);
return ad5110_write(data, AD5110_RDAC_WR, val << data->cfg->shift);
ret = ad5110_write(data, AD5110_SHUTDOWN, val ? 0 : 1);
ret = ad5110_write(data, AD5110_RESET, 0);