Re: [RFC PATCH 00/11] input: Synaptics RMI4 Touchscreen Driver

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On 01/04/2012 11:58 PM, Dmitry Torokhov wrote:
On Wed, Dec 21, 2011 at 06:09:51PM -0800, Christopher Heiny wrote:
This patch implements a driver supporting Synaptics ClearPad and other
touchscreen sensors that use the RMI4 protocol, as defined here:

     http://www.synaptics.com/sites/default/files/511-000136-01-Rev-E-RMI4%20Intrfacing%20Guide.pdf

as well as successor documents that haven't made their way through to
publication yet.

[snip]


     - character device access to the RMI4 register map via rmidev

Could you please tell me why this facility is needed?

In conjunction with an Android application (Synaptics RED), this allows the PC-based Design Studio 4 configuration and diagnostic tool to access the RMI4 sensor via USB, Wifi, Bluetooth, etc. We figured it might also be useful to the general development community, so we included it here.

					Chris
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