Re: [PATCH v4 2/9] [media] v4l2-core: Add VFL_TYPE_TOUCH_SENSOR

From: Hans Verkuil
Date: Mon Jun 20 2016 - 08:00:53 EST


On 06/17/2016 04:16 PM, Nick Dyer wrote:
> Some touch controllers send out raw touch data in a similar way to a
> greyscale frame grabber. Add a new device type for these devices.
>
> Use a new device prefix v4l-touch for these devices, to stop generic
> capture software from treating them as webcams.
>
> Signed-off-by: Nick Dyer <nick.dyer@xxxxxxxxxxx>
> ---
> drivers/input/touchscreen/sur40.c | 4 ++--
> drivers/media/v4l2-core/v4l2-dev.c | 13 ++++++++++---
> drivers/media/v4l2-core/v4l2-ioctl.c | 15 ++++++++++-----
> include/media/v4l2-dev.h | 3 ++-
> include/uapi/linux/videodev2.h | 1 +

The new interface also needs to be documented in the media DocBook: section 4
describes all the interfaces, so a new one should be added here.

Sorry, just realized this.

I recommend that you grep for swradio:

git grep swradio Documentation/DocBook/media

and add a line there for v4l-touch as well. It also looks like a new interface
define is needed as a media type.

Regards,

Hans