linux-kernel - Re: [PATCH 0/2] input: mt: Add helper function to send end events

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Message-ID: <52C28DC7.9020003@euromail.se>
Date:	Tue, 31 Dec 2013 10:26:31 +0100
From:	Henrik Rydberg <rydberg@...omail.se>
To:	"Felipe F. Tonello" <eu@...ipetonello.com>,
	linux-input@...r.kernel.org
CC:	linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH 0/2] input: mt: Add helper function to send end events

Hi Felipe,

> Adds a helper function to send end touch events for active tracking ids.
> And also implements it in egalax driver.

What problematic scenario is this supposed to solve?

The 'release on suspend' is only an approximation to the 'close laptop' scenario,
it is certainly not correct in the coffee table case, for instance. Instead of
hardcoding this in the kernel, userland can easily detect long intervals
directly using the event time.

Unless there is already a reasonable mechanism in your user application which
deals with cases like this but fails to account for your particular problem
scenario, the patch will not be applied.

Thanks,
Henrik

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