[media] v4l2-ctrls/event: remove struct v4l2_ctrl_fh, instead use v4l2_subscribed_event
The v4l2_ctrl_fh struct connected v4l2_ctrl with v4l2_fh so the control
would know which filehandles subscribed to it. However, it is much easier
to use struct v4l2_subscribed_event directly for that and get rid of that
intermediate struct.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 8f08c6e..a15e909 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -31,6 +31,7 @@
struct video_device;
struct v4l2_subdev;
struct v4l2_event_subscription;
+struct v4l2_subscribed_event;
struct v4l2_fh;
/** struct v4l2_ctrl_ops - The control operations that the driver has to provide.
@@ -53,6 +54,7 @@
/** struct v4l2_ctrl - The control structure.
* @node: The list node.
+ * @ev_subs: The list of control event subscriptions.
* @handler: The handler that owns the control.
* @cluster: Point to start of cluster array.
* @ncontrols: Number of controls in cluster array.
@@ -108,7 +110,7 @@
struct v4l2_ctrl {
/* Administrative fields */
struct list_head node;
- struct list_head fhs;
+ struct list_head ev_subs;
struct v4l2_ctrl_handler *handler;
struct v4l2_ctrl **cluster;
unsigned ncontrols;
@@ -184,11 +186,6 @@
int error;
};
-struct v4l2_ctrl_fh {
- struct list_head node;
- struct v4l2_fh *fh;
-};
-
/** struct v4l2_ctrl_config - Control configuration structure.
* @ops: The control ops.
* @id: The control ID.
@@ -497,10 +494,10 @@
int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val);
/* Internal helper functions that deal with control events. */
-void v4l2_ctrl_add_fh(struct v4l2_ctrl_handler *hdl,
- struct v4l2_ctrl_fh *ctrl_fh,
- struct v4l2_event_subscription *sub);
-void v4l2_ctrl_del_fh(struct v4l2_ctrl *ctrl, struct v4l2_fh *fh);
+void v4l2_ctrl_add_event(struct v4l2_ctrl *ctrl,
+ struct v4l2_subscribed_event *sev);
+void v4l2_ctrl_del_event(struct v4l2_ctrl *ctrl,
+ struct v4l2_subscribed_event *sev);
/** v4l2_ctrl_subscribe_fh() - Helper function that subscribes a control event.
* @fh: The file handler that subscribed the control event.