Hi,
On Wed, 2018-07-04 at 17:38 +0200, Hans Verkuil wrote:
> If a driver needs to find/inspect the controls set in a request then
> it can use these functions.
>
> E.g. to check if a required control is set in a request use this in the
> req_validate() implementation:
>
> int res = -EINVAL
If a driver needs to find/inspect the controls set in a request then
it can use these functions.
E.g. to check if a required control is set in a request use this in the
req_validate() implementation:
int res = -EINVAL;
hdl = v4l2_ctrl_request_hdl_find(req, parent_hdl);
if
