From: Mark Brown <broonie@sirena.org.uk>
To: Eric Miao <eric.y.miao@gmail.com>
Cc: David Brownell <david-b@pacbell.net>,
Eric Miao <ymiao3@marvell.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linux-input@vger.kernel.org" <linux-input@vger.kernel.org>
Subject: Re: [patch 22/22] input: ads7846: introduce platform specific way to synchronize sampling
Date: Sat, 14 Mar 2009 12:55:11 +0000 [thread overview]
Message-ID: <20090314125510.GA11560@sirena.org.uk> (raw)
In-Reply-To: <f17812d70903132041u5df5d6f7u9cc9577d2dc95a60@mail.gmail.com>
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@pacbell.net> 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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prev parent reply other threads:[~2009-03-14 12:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-04 19:59 [patch 22/22] input: ads7846: introduce platform specific way to synchronize sampling akpm
2009-03-13 2:34 ` Dmitry Torokhov
2009-03-13 2:42 ` Eric Miao
2009-03-13 2:50 ` Eric Miao
2009-03-14 1:09 ` David Brownell
2009-03-14 3:41 ` Eric Miao
2009-03-14 12:55 ` Mark Brown [this message]
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