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From: "Henrik Rydberg" <rydberg@euromail.se>
Date: Tue, 13 Nov 2012 19:55:05 +0100
To: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>, Jiri Kosina <jkosina@suse.cz>,
        Stephane Chatty <chatty@enac.fr>, linux-input@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 11/13] HID: hid-multitouch: support for hovering
 devices
Message-ID: <20121113185505.GA3641@polaris.bitmath.org>
References: <1352306256-12180-1-git-send-email-benjamin.tissoires@gmail.com>
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 <20121113164239.GA712@polaris.bitmath.org>
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> I just intend to force the update of the distance value at the
> beginning of the touch.
> This is just to send a coherent state when the finger goes in range,
> and to make sure that user-space application do not rely on the
> undefined value (0) whereas the kernel thought it was set to 1.

Right, so we use EVIOCGMTSLOTS. This "problem" occurs with
ABS_MT_ORIENTATION as well.

Thanks,
Henrik