From mboxrd@z Thu Jan  1 00:00:00 1970
From: Henrik Rydberg <rydberg@euromail.se>
Subject: Re: [PATCH 2/2] input: mt: Document the MT event slot protocol (rev3)
Date: Fri, 21 May 2010 19:49:42 +0200
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To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Ping Cheng <pinglinux@gmail.com>, 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>

Dmitry Torokhov wrote:
> 
> I guess this is where our disconnect lies as when I am looking at the
> event names I view all *_MT_* events as related to the multitouch
> protocol handling.
> 

Yes. It is true that slot control is MT related, but I am looking at this from
the perspective of future expansions like KEY_MT,  KEY_REL, and such, finding a
way to signal to user space which events are handled via slots. If we had
ABS_MT_SLOT, we would most likely get applications which store ABS_MT_SLOT as an
attribute of the slot together with ABS_MT_POSITION_X, ABS_MT_TOUCH_MAJOR, etc,
which is just not right. So the proposal is ABS_SLOT. May we have your verdict,
please. :-)

Henrik