linux-kernel - RE: [PATCH] INPUT:Add ABS_PRESSURE input event support for touchscreen driver

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Message-ID: <5EB3BFCD089AD643B9BB63439F5FD5E937BB882D@SHAASIEXM01.ASIA.ROOT.PRI>
Date:	Mon, 27 Jun 2011 03:05:32 +0000
From:	Baohua Song <Baohua.Song@....com>
To:	daoguang wu <wdgvip@...il.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	"kgene.kim@...sung.com" <kgene.kim@...sung.com>,
	"ben-linux@...ff.org" <ben-linux@...ff.org>,
	"dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"wdgvip@...il.com" <wdgvip@...il.com>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH] INPUT:Add ABS_PRESSURE input event support for
	touchscreen driver

> -----Original Message-----
> From: linux-arm-kernel-bounces@...ts.infradead.org
> [mailto:linux-arm-kernel-bounces@...ts.infradead.org] On Behalf Of daoguang
> wu
> Sent: 2011年6月27日 10:15
> To: Mark Brown
> Cc: kgene.kim@...sung.com; ben-linux@...ff.org;
> dmitry.torokhov@...il.com; linux-kernel@...r.kernel.org;
> wdgvip@...il.com; linux-input@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org
> Subject: Re: [PATCH] INPUT:Add ABS_PRESSURE input event support for
> touchscreen driver
> 
> 2011/6/24 Mark Brown <broonie@...nsource.wolfsonmicro.com>:
> > On Fri, Jun 24, 2011 at 10:15:38AM +0800, Wu DaoGuang wrote:
> >> The touchscreen driver s3c2410_ts.c doesn't work well when using
> >> the tslib, an abstraction layer for touchscreen panel events.
> >> Tslib needs ABS_X ABS_Y and ABS_PRESSURE events to report, but only
> >> the former two the driver can provide.
> >
> > It seems much more sane to fix this in tslib, the kernel is not actually
> > reporting pressure meaningfully here and there's already BTN_TOUCH to
> > report if the pen is down.
> >
> yeah,I will try to fix it in tslib.

You may send a patch to tslib. 

> Thanks a lot.
> 
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