AD7150_CFG_THRESHTYPE_MSK
threshtype = FIELD_GET(AD7150_CFG_THRESHTYPE_MSK, ret);
cfg = ret & ~(AD7150_CFG_THRESHTYPE_MSK | AD7150_CFG_FIX);
FIELD_PREP(AD7150_CFG_THRESHTYPE_MSK, thresh_type);