Document the new touch API.
Signed-off-by: NNick Dyer <nick@shmanahar.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix up videodev2.h.rst.exceptions]
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>