Re: [PATCH v2] lis3lv02d: Add STMicroelectronics lis331dlh digital accelerometer

[Chinmay V S]

> Note from datasheet, "1LSb=4g/4096 at 12bit representation,
> Â2g Full-scale"

Precisely my point. All the datasheet says is :
1. It is +/-2G mode --> so Numerator is 4G.
2. We are using 12bits --> so Denominator is 2^12 = 4096.

There is no clear reason/justification as to why 12bits was chosen in
the first place. At this point unless someone from the
design/original-driver team actually confirms why the 12bit
representation was chosen, it is all conjecture on our part.

If you have the actual LIS331DLH hardware, can you verify if the lower
4bits do actually contain any data (or are they always zero). This
will help us decide whether to use them(16bit mode) or discard
them(12bit mode)?...

regards
ChinmayVS
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/