linux-kernel - Re: [PATCH RFC v2 1/6] media: v4l2-ctrls: fix documentation of V4L2_CID_FOCUS

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Date:   Tue, 6 Jun 2023 13:34:21 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Michael Riesch <michael.riesch@...fvision.net>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        libcamera-devel@...ts.libcamera.org,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Matthias Fend <Matthias.Fend@...fvision.net>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC v2 1/6] media: v4l2-ctrls: fix documentation of
 V4L2_CID_FOCUS_ABSOLUTE unit

Hi Michael,

Thank you for the patch.

On Tue, Apr 25, 2023 at 11:45:11AM +0200, Michael Riesch wrote:
> The current unit description of the V4L2_CID_FOCUS_ABSOLUTE does not
> make sense and was probably copy-pasted from V4L2_CID_FOCUS_RELATIVE.
> Fix the unit description in the documentation.
> 
> Signed-off-by: Michael Riesch <michael.riesch@...fvision.net>
> ---
>  Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst
> index daa4f40869f8..df29150dce7b 100644
> --- a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst
> +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst
> @@ -140,8 +140,8 @@ enum v4l2_exposure_metering -
>  
>  ``V4L2_CID_FOCUS_ABSOLUTE (integer)``
>      This control sets the focal point of the camera to the specified
> -    position. The unit is undefined. Positive values set the focus
> -    closer to the camera, negative values towards infinity.
> +    position. The unit is undefined. Larger values move the focus closer to
> +    the camera, smaller values move the focus to infinity.

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

>  
>  ``V4L2_CID_FOCUS_RELATIVE (integer)``
>      This control moves the focal point of the camera by the specified
> 

-- 
Regards,

Laurent Pinchart