AD7998_ALERT_STAT_REG 481 drivers/iio/adc/ad799x.c ret = i2c_smbus_read_byte_data(st->client, AD7998_ALERT_STAT_REG); AD7998_ALERT_STAT_REG 485 drivers/iio/adc/ad799x.c if (i2c_smbus_write_byte_data(st->client, AD7998_ALERT_STAT_REG,