diff options
Diffstat (limited to 'include/media/v4l2-ctrls.h')
| -rw-r--r-- | include/media/v4l2-ctrls.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index c1d20bd8f25f..a5953b812878 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -304,12 +304,14 @@ struct v4l2_ctrl { * the control has been applied. This prevents applying controls * from a cluster with multiple controls twice (when the first * control of a cluster is applied, they all are). - * @req: If set, this refers to another request that sets this control. + * @valid_p_req: If set, then p_req contains the control value for the request. * @p_req: If the control handler containing this control reference * is bound to a media request, then this points to the - * value of the control that should be applied when the request + * value of the control that must be applied when the request * is executed, or to the value of the control at the time - * that the request was completed. + * that the request was completed. If @valid_p_req is false, + * then this control was never set for this request and the + * control will not be updated when this request is applied. * * Each control handler has a list of these refs. The list_head is used to * keep a sorted-by-control-ID list of all controls, while the next pointer @@ -322,7 +324,7 @@ struct v4l2_ctrl_ref { struct v4l2_ctrl_helper *helper; bool from_other_dev; bool req_done; - struct v4l2_ctrl_ref *req; + bool valid_p_req; union v4l2_ctrl_ptr p_req; }; @@ -349,7 +351,7 @@ struct v4l2_ctrl_ref { * @error: The error code of the first failed control addition. * @request_is_queued: True if the request was queued. * @requests: List to keep track of open control handler request objects. - * For the parent control handler (@req_obj.req == NULL) this + * For the parent control handler (@req_obj.ops == NULL) this * is the list header. When the parent control handler is * removed, it has to unbind and put all these requests since * they refer to the parent. |