Hi Daniel,
On Tue, Apr 14, 2020 at 10:01:50PM +0200, Daniel Gomez wrote:
> Add a v4l2 control ID to handle the temperature.
>
> Signed-off-by: Daniel Gomez <daniel@xxxxxxxx>
> ---
> drivers/media/v4l2-core/v4l2-ctrls.c | 5 +++++
> include/uapi/linux/v4l2-controls.h | 4 +++-
> 2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
> index 93d33d1db4e8..17b93111baa8 100644
> --- a/drivers/media/v4l2-core/v4l2-ctrls.c
> +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
> @@ -783,6 +783,7 @@ const char *v4l2_ctrl_get_name(u32 id)
> case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT: return "Min Number of Output Buffers";
> case V4L2_CID_ALPHA_COMPONENT: return "Alpha Component";
> case V4L2_CID_COLORFX_CBCR: return "Color Effects, CbCr";
> + case V4L2_CID_TEMPERATURE: return "Temperature";
What's the unit of this control? I think it should have one.
As Hans pointed out, documentation is needed.
>
> /* Codec controls */
> /* The MPEG controls are applicable to all codec controls
> @@ -1344,6 +1345,10 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
> *type = V4L2_CTRL_TYPE_INTEGER;
> *flags |= V4L2_CTRL_FLAG_READ_ONLY;
> break;
> + case V4L2_CID_TEMPERATURE:
> + *type = V4L2_CTRL_TYPE_INTEGER;
> + *flags |= V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_READ_ONLY;
> + break;
> case V4L2_CID_MPEG_VIDEO_DEC_PTS:
> *type = V4L2_CTRL_TYPE_INTEGER64;
> *flags |= V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_READ_ONLY;
> diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
> index 1a58d7cc4ccc..76ec0a6da8d5 100644
> --- a/include/uapi/linux/v4l2-controls.h
> +++ b/include/uapi/linux/v4l2-controls.h
> @@ -143,8 +143,10 @@ enum v4l2_colorfx {
> #define V4L2_CID_ALPHA_COMPONENT (V4L2_CID_BASE+41)
> #define V4L2_CID_COLORFX_CBCR (V4L2_CID_BASE+42)
>
> +#define V4L2_CID_TEMPERATURE (V4L2_CID_BASE+43)
> +
> /* last CID + 1 */
> -#define V4L2_CID_LASTP1 (V4L2_CID_BASE+43)
> +#define V4L2_CID_LASTP1 (V4L2_CID_BASE+44)
>
> /* USER-class private control IDs */
>
--
Kind regards,
Sakari Ailus
