path: root/include/media/v4l2-ctrls.h
diff options
authorHans Verkuil <hans.verkuil@cisco.com>2011-06-13 18:55:58 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-07-27 17:53:31 -0300
commit77068d36d8b9e9902a89b4bb01011d41926f5420 (patch)
tree4fde4974ce56e52acac5c7c8d873d300e946adcc /include/media/v4l2-ctrls.h
parent523f46d6aba9dcb0a2d0fc474ca884e93a7cf198 (diff)
[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>
Diffstat (limited to 'include/media/v4l2-ctrls.h')
1 files changed, 7 insertions, 10 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 8f08c6edf509..a15e9098f98b 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -31,6 +31,7 @@ struct v4l2_ctrl;
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_ops {
/** 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_ops {
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 @@ struct v4l2_ctrl_handler {
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 @@ s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl);
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.

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