linux-kernel - Re: [PATCH v5 0/9] Output raw touch data via V4L2

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Date:	Mon, 27 Jun 2016 13:51:54 +0100
From:	Nick Dyer <nick.dyer@...ev.co.uk>
To:	Hans Verkuil <hverkuil@...all.nl>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Benson Leung <bleung@...omium.org>,
	Alan Bowens <Alan.Bowens@...el.com>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Chris Healy <cphealy@...il.com>,
	Henrik Rydberg <rydberg@...math.org>,
	Andrew Duggan <aduggan@...aptics.com>,
	James Chen <james.chen@....com.tw>,
	Dudley Du <dudl@...ress.com>,
	Andrew de los Reyes <adlr@...omium.org>,
	sheckylin@...omium.org, Peter Hutterer <peter.hutterer@...-t.net>,
	Florian Echtler <floe@...terbrot.org>, mchehab@....samsung.com
Subject: Re: [PATCH v5 0/9] Output raw touch data via V4L2

On 27/06/2016 13:22, Hans Verkuil wrote:
> On 06/27/2016 01:57 PM, Nick Dyer wrote:
> 2) Alternatively, if we want to keep using BUF_TYPE_VIDEO_CAPTURE, then:
> 
> - we keep V4L2_CAP_TOUCH which is combined with CAP_VIDEO_CAPTURE (and perhaps
>   VIDEO_OUTPUT in the future). The CAP_TOUCH just says that this is a touch
>   device, not a video device, but otherwise it acts the same.
> 
> I'd go with 2, since I see no reason to add a new BUF_TYPE for this.
> It acts exactly like video after all, with only a few restrictions (i.e. no
> colorspace info or interlaced). And adding a new BUF_TYPE will likely break
> the existing sur40 app.

OK, I will rework with this approach.