linux-kernel - Re: [PATCH 1/4] media: uvcvideo: Add missing value for power_line

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Message-ID: <YoZ70Ssf4PTq3OaL@pendragon.ideasonboard.com>
Date:   Thu, 19 May 2022 20:18:09 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Ricardo Ribalda <ribalda@...omium.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tomasz Figa <tfiga@...omium.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Yunke Cao <yunkec@...gle.com>
Subject: Re: [PATCH 1/4] media: uvcvideo: Add missing value for
 power_line_frequency

Hi Ricardo,

Thank you for the patch.

On Thu, May 19, 2022 at 05:40:56PM +0200, Ricardo Ribalda wrote:
> UVC 1.5 class defines 4 values for this control on:
> 4.2.2.3.6 Power Line Frequency Control

But UVC 1.1 doesn't. This thus has to be conditioned on the UVC version.

> Add the missing value.
> 
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
> ---
>  drivers/media/usb/uvc/uvc_ctrl.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
> index b4f6edf968bc..13cad4aa7573 100644
> --- a/drivers/media/usb/uvc/uvc_ctrl.c
> +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> @@ -366,6 +366,7 @@ static const struct uvc_menu_info power_line_frequency_controls[] = {
>  	{ 0, "Disabled" },
>  	{ 1, "50 Hz" },
>  	{ 2, "60 Hz" },
> +	{ 3, "Auto" },
>  };
>  
>  static const struct uvc_menu_info exposure_auto_controls[] = {

-- 
Regards,

Laurent Pinchart