Greetings,
I'm trying to use an st_pressure based sensor to sample pressure
data using generic_buffer tool. However it seems that it does not
support data packed onto 24 bits samples.
st_pressure driver defines scan_type for my device as:
<code>
/* ... */
.scan_type = {
.sign = 'u',
.realbits = 24,
.storagebits = 24,
.endianness = IIO_LE,
},
</code>
What is the proper way to make this work ? Using 32 bits storagebits
field ? Enhance generic_buffer to support 24 bits samples ? Anything
else ??
It seems iio_compute_scan_bytes consider sample data as a simple byte
stream. So I'm wondering what are the alignment constraints for sample
start address ? Should they be aligned onto their natural "word"
boundaries, i.e. 16 bits for u16, 32 bits for u32, etc... ? And for
24 bits samples ?
Regards.
Grégor
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