Re: [RFC PATCH 3/4] iio: accel: fxls8962af: add hw buffered sampling

[Sean Nyekjaer <sean@geanix.com>]

On 28/04/2021 18.32, Jonathan Cameron wrote:
>> When buffered sampling is enabled, the accelerometer will dump data into
>> the internal fifo and interrupt at watermark. Then the driver flushes
>> all data to the iio buffer.
>> As the accelerometer doesn't have internal timestamps, they are aproximated
>> between to interrupts.
> two?
>
> This tends to be a noisy approach, so people often try to apply a filter.
> However, no need to do that for an initial version.
>
> There are some things in here referring to enabling triggered modes, but I'm
> not seeing code to actually do so.  The fun question when dealing with fifos
> and triggered mode is what the interface is to switch between the two.
> One option I think we've used before is to just have 'no trigger' match
> up to fifo mode and if a trigger is set, don't use the fifo.
>
Thanks Jonathan.

Fixed the above text to:
As the accelerometer doesn't have internal timestamps,
they are approximated between the current and last interrupt.

I don't know the correct term here, the accelerometer via the watermark, 
is doing interrupts.
Is that called no-trigger / trigger ?

/Sean