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SubjectRe: [PATCHv4 2/5] Input: edt-ft5x06: Add DT support
On 20/03/14 10:37, Mark Rutland wrote:
> On Wed, Mar 19, 2014 at 01:09:20PM +0000, Lothar Waßmann wrote:
>> +FocalTech EDT-FT5x06 Polytouch driver
>> +=====================================
>> +
>> +Required properties:
>> + - compatible: "edt,edt-ft5x06"
> Is the 'x' part of a particular product name, or is this a class of
> devices?

The driver is intended for the EDT "polytouch" family touches, which are
based on a focaltec controller. The current line of touches uses e.g.
the ft5306 as well as the ft5406 focaltec controller.

> It's preferable to have a specific string which another similar variants
> can claim compatibility with (while also additionally having a more
> specific string), as this makes it possible to handle variants more
> specially in future, target workarounds, etc.

I chose the driver name since I wanted to differentiate from other EDT
touches, which used a different controller. With hindsight it was
unfortunately confusing, since I get quite some request from people, who
also have a device based on the focaltec controllers, but with a very
different firmware (and communication protocol). They got tricked into
thinking that this driver would be suitable...

If I were to chose the name again I'd probably pick "edt-polytouch" or
something like this. But I doubt that it is useful to change the name now.


Simon Budig kernel concepts GmbH Sieghuetter Hauptweg 48
+49-271-771091-17 D-57072 Siegen

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