The start(), stop() and queueRequest() methods receive a const pointer to the related Camera object. The stop() request will need to modify the state of the camera, in order to report completion of pending requests. Un-constify the Camera pointer to that method, and update the start() and queueRequest() methods similarly for coherency. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>