Re: [PATCH 1/4] media: dw100: Implement V4L2 requests support

From: Nicolas Dufresne

Date: Tue Jan 06 2026 - 10:56:12 EST


Hi,

Le mardi 06 janvier 2026 à 17:45 +0200, Laurent Pinchart a écrit :
> > I explained it in another thread, it is only called if device_run() is not going
> > to be called, so only once. vb2 does not have access to the the control handler,
> > so it can't call the v4l2_ctrl_request_complete() fonction directly.
>
> But the function is called per queue. If a buffer has been queued on
> both the capture and the output queue for a request, won't the operation
> be called twice with the same request ?

Only the OUTPUT queues allow for requests at the moment.

Nicolas

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