Re: [patch 22/22] input: ads7846: introduce platform specific way to synchronize sampling

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On Sat, Mar 14, 2009 at 11:41:58AM +0800, Eric Miao wrote:
> On Sat, Mar 14, 2009 at 9:09 AM, David Brownell <david-b@xxxxxxxxxxx> wrote:

> > yeech!  It would be a Good Thing if someone were to split out the
> > sample filtering logic from this driver so it could be used with
> > other touchscreen drivers.

> Yes, sample filtering can actually be made input device wise.

> There are actually some user-land solution to this, e.g. tslib.
> Yet this sync issue seems annoyingly unavoidable even with
> a fine grained filter, or maybe I didn't try my best to tweak those
> filters to a maximum potential yet, and I gave up on that finally.

OpenMoko has a genericised in-kernel filter setup which they're
currently trying to get merged:

	http://wiki.openmoko.org/wiki/Touchscreen_Filters
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