Re: [PATCH 3/5] media/v4l2-ctrls: Add execute flags to write_only controls

From: Laurent Pinchart
Date: Fri Mar 20 2015 - 10:16:27 EST


Hi Ricardo,

Thank you for the patch.

On Thursday 19 March 2015 16:21:24 Ricardo Ribalda Delgado wrote:
> Any control that sets FLAG_WRITE_ONLY should OR it with FLAG_ACTION.

Do you mean FLAG_EXECUTE_ON_WRITE ?

> So we can keep the current meaning of WRITE_ONLY.
>
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
> ---
> drivers/media/v4l2-core/v4l2-ctrls.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c
> b/drivers/media/v4l2-core/v4l2-ctrls.c index 627d4c7..da0ffd3 100644
> --- a/drivers/media/v4l2-core/v4l2-ctrls.c
> +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
> @@ -991,7 +991,8 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum
> v4l2_ctrl_type *type, case V4L2_CID_AUTO_FOCUS_START:
> case V4L2_CID_AUTO_FOCUS_STOP:
> *type = V4L2_CTRL_TYPE_BUTTON;
> - *flags |= V4L2_CTRL_FLAG_WRITE_ONLY;
> + *flags |= V4L2_CTRL_FLAG_WRITE_ONLY |
> + V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
> *min = *max = *step = *def = 0;
> break;
> case V4L2_CID_POWER_LINE_FREQUENCY:
> @@ -1172,7 +1173,8 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum
> v4l2_ctrl_type *type, case V4L2_CID_FOCUS_RELATIVE:
> case V4L2_CID_IRIS_RELATIVE:
> case V4L2_CID_ZOOM_RELATIVE:
> - *flags |= V4L2_CTRL_FLAG_WRITE_ONLY;
> + *flags |= V4L2_CTRL_FLAG_WRITE_ONLY |
> + V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
> break;
> case V4L2_CID_FLASH_STROBE_STATUS:
> case V4L2_CID_AUTO_FOCUS_STATUS:
> @@ -1983,7 +1985,8 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct
> v4l2_ctrl_handler *hdl,
>
> sz_extra = 0;
> if (type == V4L2_CTRL_TYPE_BUTTON)
> - flags |= V4L2_CTRL_FLAG_WRITE_ONLY;
> + flags |= V4L2_CTRL_FLAG_WRITE_ONLY |
> + V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
> else if (type == V4L2_CTRL_TYPE_CTRL_CLASS)
> flags |= V4L2_CTRL_FLAG_READ_ONLY;
> else if (type == V4L2_CTRL_TYPE_INTEGER64 ||

--
Regards,

Laurent Pinchart

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