linux-kernel - Re: [PATCH] i2c: cyttsp i2c touchscreen driver init submit

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Message-ID: <4C3C0C36.5080608@euromail.se>
Date:	Tue, 13 Jul 2010 08:48:22 +0200
From:	Henrik Rydberg <rydberg@...omail.se>
To:	Kevin McNeely <kev@...ress.com>
CC:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	David Brown <davidb@...eaurora.org>,
	Trilok Soni <tsoni@...eaurora.org>,
	Fred <fwk@...ntu.linuxcertified.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Eric Miao <eric.y.miao@...il.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Simtec Linux Team <linux@...tec.co.uk>,
	Arnaud Patard <arnaud.patard@...-net.org>,
	Antonio Ospite <ospite@...denti.unina.it>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: cyttsp i2c touchscreen driver init submit

Kevin McNeely wrote:
> From: Fred <fwk@...ntu.linuxcertified.com>
> 
> This is a new touchscreen driver for the Cypress Semiconductor
> cyttsp family of devices.  This driver is for the i2c version
> of cyttsp parts.
> 
> Signed-off-by: Kevin McNeely <kev@...ress.com>
> ---

This driver contains too much code. I am wondering if the device actually
supports tracking id, or whether it is emulated in the driver code? If tracking
is not well supported in hardware, then please use MT protocol A and remove the
usage of ABS_MT_TRACKING_ID and the logic around it. If tracking is indeed well
supported in the hardware, then please use MT protocol B.

Thanks,
Henrik
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