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| author |   Ricardo Ribalda Delgado <ribalda@kernel.org> | 2019-10-07 12:06:35 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-10-10 11:38:21 -0300 |
| commit | 2e8db63e1f64b6085cc84a03484213af565c81fb (patch) | |
| tree | 96dbf0e15217df4122325f5c738468255c44857e /include/media/v4l2-ctrls.h | |
| parent | media: Documentation: media: Describe V4L2_CID_UNIT_CELL_SIZE (diff) | |
| download | wireguard-linux-2e8db63e1f64b6085cc84a03484213af565c81fb.tar.xz wireguard-linux-2e8db63e1f64b6085cc84a03484213af565c81fb.zip | |
media: v4l2-ctrl: Add new helper v4l2_ctrl_ptr_create
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>
Diffstat (limited to 'include/media/v4l2-ctrls.h')
| -rw-r--r-- | include/media/v4l2-ctrls.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index c9ca867ef32b..26205ba3a0a0 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -74,6 +74,18 @@ union v4l2_ctrl_ptr { }; /** + * 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. * * @g_volatile_ctrl: Get a new value for this control. Generally only relevant |