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References: <20220920-resend-meta-v4-0-3ac355b66723@chromium.org> <20220920-resend-meta-v4-2-3ac355b66723@chromium.org>
In-Reply-To: <20220920-resend-meta-v4-2-3ac355b66723@chromium.org>
From:   Yunke Cao <yunkec@chromium.org>
Date:   Mon, 5 Dec 2022 14:06:35 +0900
Message-ID: <CAEDqmY4aWJriw9NvcbHh4OUv+NVPZ1BBH-Rp0sPO8EFnOmX4xQ@mail.gmail.com>
Subject: Re: [PATCH v4 2/3] media: Documentation/driver-api: Document device name
To:     Ricardo Ribalda <ribalda@chromium.org>
Cc:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Sergey Senozhatsky <senozhatsky@chromium.org>,
        linux-media@vger.kernel.org,
        Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        linux-kernel@vger.kernel.org
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On Sat, Dec 3, 2022 at 2:08 AM Ricardo Ribalda <ribalda@chromium.org> wrote:
>
> Document how the name of the metadata devices is modified.
>
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> ---
>  Documentation/driver-api/media/v4l2-dev.rst | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/driver-api/media/v4l2-dev.rst b/Documentation/driver-api/media/v4l2-dev.rst
> index 99e3b5fa7444..935a46e29c5e 100644
> --- a/Documentation/driver-api/media/v4l2-dev.rst
> +++ b/Documentation/driver-api/media/v4l2-dev.rst
> @@ -42,7 +42,9 @@ You should also set these fields of :c:type:`video_device`:
>  - :c:type:`video_device`->v4l2_dev: must be set to the :c:type:`v4l2_device`
>    parent device.
>
> -- :c:type:`video_device`->name: set to something descriptive and unique.
> +- :c:type:`video_device`->name: set to something descriptive and unique. If the
> +  device has the `V4L2_CAP_META_CAPTURE` or `V4L2_CAP_META_OUTPUT` capabilities,
> +  the string `Meta:` will be inserted before the original name.
>
>  - :c:type:`video_device`->vfl_dir: set this to ``VFL_DIR_RX`` for capture
>    devices (``VFL_DIR_RX`` has value 0, so this is normally already the
>
> --
> 2.39.0.rc0.267.gcb52ba06e7-goog-b4-0.11.0-dev-696ae
Reviewed-by: Yunke Cao <yunkec@chromium.org>