LP55xx_FADER_MAPPING_MASK
val = FIELD_GET(LP55xx_FADER_MAPPING_MASK, val);
if (val > FIELD_MAX(LP55xx_FADER_MAPPING_MASK)) {
val = (buf[i] - '0') << __bf_shf(LP55xx_FADER_MAPPING_MASK);
LP55xx_FADER_MAPPING_MASK,