linux-kernel - Re: [PATCH 4/4] v4l2-ctl: Support setting V4L2_CTRL_TYPE

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Date:   Mon, 4 Nov 2019 12:21:33 +0100
From:   Ricardo Ribalda Delgado <ribalda@...nel.org>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>
Cc:     linux-media <linux-media@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] v4l2-ctl: Support setting V4L2_CTRL_TYPE_AREA controls

Hi Hans

Sure I will fix this. Shall I resend it once you have updated the
headers on v4l-utils?

Best regards

On Mon, Nov 4, 2019 at 10:41 AM Hans Verkuil <hverkuil-cisco@...all.nl> wrote:
>
> On 11/1/19 12:25 PM, Ricardo Ribalda Delgado wrote:
> > $ v4l2-ctl  -d /dev/video1  -c area=123123x233
> >
> > Signed-off-by: Ricardo Ribalda Delgado <ribalda@...nel.org>
> > ---
> >  utils/v4l2-ctl/v4l2-ctl-common.cpp | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/utils/v4l2-ctl/v4l2-ctl-common.cpp b/utils/v4l2-ctl/v4l2-ctl-common.cpp
> > index 95339561..676b05e0 100644
> > --- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
> > +++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
> > @@ -973,6 +973,10 @@ void common_set(cv4l_fd &_fd)
> >                                       strncpy(ctrl.string, iter->second.c_str(), qc.maximum);
> >                                       ctrl.string[qc.maximum] = 0;
> >                                       break;
> > +                             case V4L2_CTRL_TYPE_AREA:
> > +                                     sscanf(iter->second.c_str(), "%dx%d",
>
> Use %ux%u since these are unsigned values.
>
> Regards,
>
>         Hans
>
> > +                                            &ctrl.p_area->width, &ctrl.p_area->height);
> > +                                     break;
> >                               default:
> >                                       fprintf(stderr, "%s: unsupported payload type\n",
> >                                                       qc.name);
> >
>