Question about ADIS162XX low voltage status bit

Question about ADIS162XX low voltage status bit

[Pedro Sousa]

Hi everyone,

I saw that all iio drivers ADIS162XX have a comment on the low voltage
status bit specifying 3.15V as a safe lower bound, but this value does
not match the ones in the datasheet, which are all lower. What is the
reason for this discrepancy?

Re: Question about ADIS162XX low voltage status bit

[Alexandru Ardelean]

On Sat, May 18, 2019 at 11:51 PM Pedro Sousa <pedroteosousa@gmail.com> wrote:
>
> Hi everyone,
>
> I saw that all iio drivers ADIS162XX have a comment on the low voltage
> status bit specifying 3.15V as a safe lower bound, but this value does
> not match the ones in the datasheet, which are all lower. What is the
> reason for this discrepancy?

Good find.
You are correct. The values should be 2.975V in the driver.
This is a bit hard-to-tell (why it happened to be 3.15 in the driver).

Sometimes, drivers are written before the part is released, and the
specs sometimes change from Rev A to Rev E.
Or the docs get corrected.
Or, sometimes copies a base driver from somewhere else, and forgets to
update things; no idea if that was the case here.

In any case, feel free to send a patch to fix the driver.
If not, we can send to fix them.

Thanks
Alex