Re: [libcamera-devel] [PATCH RFC 1/4] media: v4l2-ctrls: add lens group status controls for zoom and focus

[Sakari Ailus]

Hi Michael,

On Wed, Apr 12, 2023 at 10:00:26AM +0200, Michael Riesch wrote:
>  - Different controls: If moving = (V4L2_CID_FOCUS_ABSOLUTE == current),
>    then what happens if the application performs a
>    V4L2_CID_FOCUS_RELATIVE with -3? current should reach 39,
>    V4L2_CID_FOCUS_ABSOLUTE is still at 42, the lens is still moving from
>    the application's point of view.

Would there be a reason to implement both of these controls in a single
driver? AFAIU, the relative one should be used if there absolute value
isn't known to the driver.

-- 
Kind regards,

Sakari Ailus