Re: [PATCH] appletouch: Improved finger detection

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On Monday 01 June 2009 00:35:53 Jeremy Huddleston wrote:
> On May 7, 2009, at 19:59, Dmitry Torokhov wrote:
> > HI Jeremy,
> >
> > On Tue, May 05, 2009 at 12:10:34PM -0700, Jeremy Huddleston wrote:
> >> The appletouch driver is prone to reporting multiple fingers when
> >> only
> >> one is
> >> pressing.  The appletouch driver queries an array of pressure sensors
> >> and
> >> counts local maxima in pressure to determine the number of
> >> fingers.  It
> >> just
> >> does this on the raw values, so a data stream like:
> >>
> >> 0 100 250 300 299 300 250 100 0
> >>
> >> actually registers as 2 fingers.
> >>
> >> This patch updates the logic to ignore small dips in pressure that
> >> are
> >> less
> >> than the threshold.
> >
> > Does it still detect 2 fingers as 2 fingers when they are held
> > together?
>
> I just wanted to follow up on this patch[1], since I haven't seen any
> movement.  It's fairly trivial and I've been using it for the past
> month with great success (yes, it still detects 2 fingers properly).
> Is there hope that this change can get merged soon?
>

Gah, I was sure I applied it to 'next'. Sorry about that, I will
make sure it gets into .31.

-- 
Dmitry
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