From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Henrik Rydberg <rydberg@euromail.se>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
Mika Kuoppala <mika.kuoppala@nokia.com>,
Peter Hutterer <peter.hutterer@who-t.net>,
Benjamin Tissoires <tissoire@cena.fr>,
Stephane Chatty <chatty@enac.fr>,
Rafi Rubin <rafi@seas.upenn.edu>,
Michael Poole <mdpoole@troilus.org>
Subject: Re: [PATCH 0/2] input: mt: Add EVIOC mechanism for MT slots
Date: Tue, 25 May 2010 10:34:46 -0700 [thread overview]
Message-ID: <20100525173446.GA4634@core.coreip.homeip.net> (raw)
In-Reply-To: <1274788379-11026-1-git-send-email-rydberg@euromail.se>
Hi Henrik,
On Tue, May 25, 2010 at 01:52:57PM +0200, Henrik Rydberg wrote:
> These patches are in response to the discussion about input state
> retrieval.
>
> The current EVIOCGABS method does not work with MT slots. These
> patches provides a mechanism where a slot is first selected via a call
> to EVIOCSABS, after which the corresponding MT events can be extracted
> with calls to EVIOCGABS.
>
> The symmetric operation, to set the MT state via EVIOCSABS, seems to
> violate input data integrity, and is therefore not implemented.
>
This looks sane, however the question remains - is there any users for
this data? Like I mentioned, I can see the need to fetch state of
switches and ranges of absolute axis, and even non-multitouch ABS values
(due to the fact that some input devices, like sliders, may stay in a
certain position for long periods of time), but I expect multitouch data
to be "refreshed" very quickly.
Thanks.
--
Dmitry
next prev parent reply other threads:[~2010-05-25 17:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-25 11:52 [PATCH 0/2] input: mt: Add EVIOC mechanism for MT slots Henrik Rydberg
2010-05-25 11:52 ` [PATCH 1/2] input: mt: Add method to extract the MT slot state Henrik Rydberg
2010-05-25 11:52 ` [PATCH 2/2] input: evdev: Add EVIOC mechanism " Henrik Rydberg
2010-05-25 17:34 ` Dmitry Torokhov [this message]
2010-05-25 19:52 ` [PATCH 0/2] input: mt: Add EVIOC mechanism for MT slots Henrik Rydberg
2010-05-25 20:23 ` Dmitry Torokhov
2010-05-26 15:59 ` Ping Cheng
2010-05-27 7:03 ` Dmitry Torokhov
2010-05-27 7:08 ` Benjamin Tissoires
2010-05-27 7:24 ` Dmitry Torokhov
2010-05-27 11:17 ` Benjamin Tissoires
2010-05-27 12:33 ` Henrik Rydberg
2010-05-27 22:59 ` Ping Cheng
2010-05-27 23:12 ` Dmitry Torokhov
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