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[media] v4l2-ctrls/event: remove struct v4l2_ctrl_fh, instead use v4l2_subscribed_event

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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>
This commit is contained in:
Hans Verkuil
2011-06-13 18:55:58 -03:00
committed by Mauro Carvalho Chehab
parent 523f46d6ab
commit 77068d36d8
4 changed files with 47 additions and 63 deletions
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9
include/media/v4l2-event.h
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@@ -38,9 +38,18 @@ struct v4l2_kevent {
};
struct v4l2_subscribed_event {
/* list node for the v4l2_fh->subscribed list */
struct list_head list;
/* event type */
u32 type;
/* associated object ID (e.g. control ID) */
u32 id;
/* copy of v4l2_event_subscription->flags */
u32 flags;
/* filehandle that subscribed to this event */
struct v4l2_fh *fh;
/* list node that hooks into the object's event list (if there is one) */
struct list_head node;
};
int v4l2_event_alloc(struct v4l2_fh *fh, unsigned int n);