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 <redacted>
---
 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