linux-kernel - Re: [PATCH 2/2] Input: synaptics

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Message-ID: <4D06A8E5.90808@canonical.com>
Date:	Mon, 13 Dec 2010 15:14:45 -0800
From:	Chase Douglas <chase.douglas@...onical.com>
To:	Henrik Rydberg <rydberg@...omail.se>
CC:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jiri Kosina <jkosina@...e.cz>, Takashi Iwai <tiwai@...e.de>,
	Chris Bagwell <chris@...bagwell.com>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] Input: synaptics - emit multitouch data

On 12/13/2010 02:55 PM, Henrik Rydberg wrote:
> In multitouch mode, two data packets are sent from the device.  Due to
> limitations in the hardware detection mechanism, individual contacts
> cannot be reliably extracted. However, the bounding rectangle of the
> individual contacts can be accurately reproduced. This patch emits the
> MT data as envelope coordinates, allowing userspace to track the
> bounding rectangle and produce appropriate gestures.
> 
> Acked-by: Chris Bagwell <chris@...bagwell.com>
> Signed-off-by: Henrik Rydberg <rydberg@...omail.se>

I agree with the patch in theory, but I still have reservations about
MT_TOOL_ENVELOPE. Once that's sorted out I'll add my ACK.

Thanks,

-- Chase
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