AD7192_MODE_AVG_MASK
st->mode &= ~AD7192_MODE_AVG_MASK;
st->mode |= FIELD_PREP(AD7192_MODE_AVG_MASK, i);
avg_factor_selected = FIELD_GET(AD7192_MODE_AVG_MASK, st->mode);
*val = st->oversampling_ratio_avail[FIELD_GET(AD7192_MODE_AVG_MASK, st->mode)];