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media: v4l2-ctrl: Add new helper v4l2_ctrl_ptr_create

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This helper function simplifies the code by not needing a union
v4l2_ctrl_ptr and an assignment every time we need to use
a ctrl_ptr.

Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Ricardo Ribalda Delgado <ribalda@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Ricardo Ribalda Delgado 2019-10-07 12:06:35 -03:00 committed by Mauro Carvalho Chehab
parent 3f0a700624
commit 2e8db63e1f
1 changed files with 12 additions and 0 deletions
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12
include/media/v4l2-ctrls.h
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@ -73,6 +73,18 @@ union v4l2_ctrl_ptr {
void *p;
};
/**
* v4l2_ctrl_ptr_create() - Helper function to return a v4l2_ctrl_ptr from a
* void pointer
* @ptr: The void pointer
*/
static inline union v4l2_ctrl_ptr v4l2_ctrl_ptr_create(void *ptr)
{
union v4l2_ctrl_ptr p = { .p = ptr };
return p;
}
/**
* struct v4l2_ctrl_ops - The control operations that the driver has to provide.
*