Re: [PATCH v9 25/36] media: add V4L2_SUBDEV_FL_MULTIPLEXED

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On 05/10/2021 10:57, Tomi Valkeinen wrote:
> Add subdev flag V4L2_SUBDEV_FL_MULTIPLEXED. It is used to indicate that
> the subdev supports the new API with multiplexed streams (routing,
> stream configs).
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
> ---
>  include/media/v4l2-subdev.h | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
> index b3a72c98a2d3..7f9c83fac020 100644
> --- a/include/media/v4l2-subdev.h
> +++ b/include/media/v4l2-subdev.h
> @@ -888,6 +888,17 @@ struct v4l2_subdev_internal_ops {
>   * should set this flag.
>   */
>  #define V4L2_SUBDEV_FL_HAS_EVENTS		(1U << 3)
> +/*
> + * Set this flag if this subdev supports multiplexed streams. This means
> + * that the driver supports routing and handles the stream parameter in its
> + * v4l2_subdev_pad_ops handlers. More specifically, this means:
> + *
> + * - Centrally managed active state is enabled
> + * - Legacy pad config is _not_ supported (state->pads)

I'm not sure what is meant with this. Can you elaborate?

Regards,

	Hans

> + * - Routing ioctls are available
> + * - Multiple streams per pad are supported
> + */
> +#define V4L2_SUBDEV_FL_MULTIPLEXED		(1U << 4)
>  
>  struct regulator_bulk_data;
>  
> 




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