quoted

+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		*val =3D result;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		*val =3D adc_const[id] * ((result * 1000 + 500) / 1000);

=20
This looks wrong. The IIO_CHAN_INFO_SCALE attribute is the factor by
which
IIO_CHAN_INFO_RAW needs to be multiplied to get the value in the proper
unit,
which is specified in the IIO ABI spec. E.g. milli volts for voltages.
=20
What you return here seems to be the IIO_CHAN_INFO_PROCESSED attribute.
Which
basically is raw * scale.

Thanks a lot for your review.

Any way to get the result with offset value in the iio-consumer side?
What I need is as below.

  result =3D raw * scale + offset

At this moment, there are two apis() for reading the iio channel
- iio_read_channel_raw() and iio_read_channel_scale().

Does it sound good if I add iio_read_channel_offset() consumer api
using IIO_CHAN_INFO_OFFSET?

Best Regards,
Milo