XI2 relative motion events documentation

[Daniel Stone]

Hi,

On Thu, Oct 21, 2010 at 07:30:41AM +1000, Peter Hutterer wrote:
> On Wed, Oct 20, 2010 at 03:13:08PM -0500, Rendaw wrote:
> > Okay, thanks.  I sort of thought, since it was a RawEvent, it was
> > some unaccelerated, intermediate form, but that helps a lot!  I
> > might also have been dropping some RawEvents, which I think I've
> > fixed now.  I ended up not looking at the spec when I started
> > noticing inconsistencies between that and the implementation on my
> > system, but I guess I should have persevered a bit longer.
> 
> yeah, please look at the protocol spec, it is the authoritative source on it
> and I've tried my best to explain every request and event.

Also, if you notice any glaring inconsistencies, please let us know so
we can fix either the spec or the implementation.

> > One last question, semi-relevant.  Can I rely on the ordering of
> > events to link the RawEvents to the MotionEvents?
> 
> in the current implementation, that's the case but there's nothing in the
> protocol requiring it. so relying on it may break in the future.

I think it'd be fair to mandate that the resulting events have the same
timestamp.

Cheers,
Daniel
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