linux-kernel - Re: Input: add Atmel Atmegaxx captouch driver

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Message-ID: <CANEJEGtDSGL0gWVsHP8Dyy5n8s7juYhTVLJUmHq8Mn8Xf67_xA@mail.gmail.com>
Date:	Fri, 6 May 2016 11:29:14 -0700
From:	Grant Grundler <grundler@...omium.org>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	Grant Grundler <grundler@...omium.org>,
	Rob Herring <robh@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input <linux-input@...r.kernel.org>,
	Grant Likely <grant.likely@...aro.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux DeviceTree <devicetree@...r.kernel.org>,
	Hung-yu Wu <hywu@...gle.com>
Subject: Re: Input: add Atmel Atmegaxx captouch driver

On Fri, May 6, 2016 at 2:19 AM, Nicolas Ferre <nicolas.ferre@...el.com> wrote:
...
> Is it different from the Atmel QT1070 or QT2160 which have drivers
> already available in Linux:  drivers/input/keyboard/qt1070.c

Yes.  What Daniel said.  I would describe it as "probe code and
interrupt handling protocol are different" from both qt1070 and
qt2160.

I'll add qt2160 is quite a bit more complex by adding LED driver
support in a separate work handler and can handle a matrix of key
codes. So very different protocol and linux device driver.

cheers,
grant