Hi,
On Thu, Aug 07, 2014 at 12:25:59AM +0200, Peter Meerwald wrote:
> > > > > > + .scan_type = {
> > > > > > + .sign = 'u',
> > > > >
> > > > > .realbits / .storagebits missing?
> > > >
> > > > yeah, couldn't figure this out. The HW gives me a 16-bit value where
> > > > 12-bits are the mantissa and 4-bits are for the exponent. Should I call
> > > > realbits 16 and storagebits 32 ?
> > >
> > > so .realbits = 16 and .storagebits = 16, but there is no way to describe
> > > the mantissa/exponent thing to userspace
> > >
> > > you are not using iio_triggered_buffer_setup() yet, so no need for
> > > .scan_type (yet)
> >
> > ok... but then that brings up a doubt. What would I use triggered buffer
> > for ? I already setup High/Low limits (thresholds) through
> > .write_event_value(). Isn't that, pretty much, a triggered buffer ?
>
> a triggered buffer reads data from the device and stores it into a buffer
> whenever the trigger goes off (you are interested to capture all samples)
Alright, so something like a contious capture starting after a GPIO goes
off, or something ?
> events are created on certain conditions (you are not interested in all
> samples)
And this would be more like e.g. "tell me once I have 100 lux or more" ?
--
balbi
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