linux-kernel - Re: [PATCH] input: egalax: Send touch end event when is about to suspend

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Message-ID: <20131230003621.GB11528@core.coreip.homeip.net>
Date:	Sun, 29 Dec 2013 16:36:21 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Felipe Ferreri Tonello <eu@...ipetonello.com>
Cc:	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Sachin Kamat <sachin.kamat@...aro.org>,
	Heiko Abraham <abrahamh@....de>
Subject: Re: [PATCH] input: egalax: Send touch end event when is about to
 suspend

Hi Felipe,

On Mon, Dec 16, 2013 at 03:45:58PM -0800, Felipe Ferreri Tonello wrote:
> Hi Dmitry,
> 
> On 12/15/2013 02:40 AM, Dmitry Torokhov wrote:
> >Hi Felipe,
> >
> >On Tue, Dec 10, 2013 at 04:03:16PM -0800, Felipe F. Tonello wrote:
> >>From: "Felipe F. Tonello" <eu@...ipetonello.com>
> >>
> >>This is useful to report for users of this device that don't know anything
> >>about the suspension of the device. So users will receive a touch end event
> >>when the device is about to suspend, making it more user friendly.
> >>
> >>One example of users is the X Server with the evdev input driver. This patch
> >>make sure that the X server will propagate a touch end event to its windows.
> >>
> >
> >Hmm, I would argue we need to do this in input core, similarly to what
> >we do for the keys, so that all drivers would benefit from the change.
> >
> >Thanks.
> 
> I agree with you. I didn't do in this case because previous patches
> that I had to change core functionality were declined due the fact
> it's hard to maintain backwards compatibility.
> 
> Do you recommend me something in this case?

I am not sure why your other patches were declined, but I think in this
particular case it makes sense to move this functionality into input
core as many multitouch drivers would need it.

Thanks.

-- 
Dmitry
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