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Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit controls from a pipeline

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On Fri, 2017-03-17 at 10:24 -0300, Mauro Carvalho Chehab wrote:
[...]
> The big question, waiting for an answer on the last 8 years is
> who would do that? Such person would need to have several different
> hardware from different vendors, in order to ensure that it has
> a generic solution.
> 
> It is a way more feasible that the Kernel developers that already 
> have a certain hardware on their hands to add support inside the
> driver to forward the controls through the pipeline and to setup
> a "default" pipeline that would cover the common use cases at
> driver's probe.

Actually, would setting pipeline via libv4l2 plugin and letting drivers
provide a sane enabled default pipeline configuration be mutually
exclusive? Not sure about the control forwarding, but at least a simple
link setup and format forwarding would also be possible in the kernel
without hindering userspace from doing it themselves later.

regards
Philipp

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Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-14 04:50 +0100
  Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Hans Verkuil <hverkuil@xs4all.nl> - 2017-03-14 09:00 +0100
    Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-14 11:30 +0100
      media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH v4  14/36] [media] v4l2-mc: add a function to inherit controls from a pipeline) Pavel Machek <pavel@ucw.cz> - 2017-03-14 23:40 +0100
        Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH  v4 14/36] [media] v4l2-mc: add a function to inherit controls from a  pipeline) Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-15 02:00 +0100
          Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH         v4 14/36] [media] v4l2-mc: add a function to inherit controls from         a pipeline) Philippe De Muyter <phdm@macq.eu> - 2017-03-15 12:10 +0100
            Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH  v4 14/36] [media] v4l2-mc: add a function to inherit controls from a  pipeline) Nicolas Dufresne <nicolas@ndufresne.ca> - 2017-03-15 20:00 +0100
              Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH  v4 14/36] [media] v4l2-mc: add a function to inherit controls from a  pipeline) Philipp Zabel <p.zabel@pengutronix.de> - 2017-03-16 10:30 +0100
                Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH         v4 14/36] [media] v4l2-mc: add a function to inherit controls from         a pipeline) Philippe De Muyter <phdm@macq.eu> - 2017-03-16 11:00 +0100
                Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH  v4 14/36] [media] v4l2-mc: add a function to inherit controls from a  pipeline) Philipp Zabel <p.zabel@pengutronix.de> - 2017-03-16 11:10 +0100
                Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH         v4 14/36] [media] v4l2-mc: add a function to inherit controls from         a pipeline) Philippe De Muyter <phdm@macq.eu> - 2017-03-16 11:30 +0100
          Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH v4  14/36] [media] v4l2-mc: add a function to inherit controls from a pipeline) Pavel Machek <pavel@ucw.cz> - 2017-03-15 19:10 +0100
            Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH  v4 14/36] [media] v4l2-mc: add a function to inherit controls from a  pipeline) Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-15 21:30 +0100
              Re: media / v4l2-mc: wishlist for complex cameras (was Re: [PATCH v4  14/36] [media] v4l2-mc: add a function to inherit controls from a pipeline) Pavel Machek <pavel@ucw.cz> - 2017-03-16 23:20 +0100
      Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Hans Verkuil <hverkuil@xs4all.nl> - 2017-03-20 14:30 +0100
        Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-20 16:50 +0100
          Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-03-20 17:20 +0100
            Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-20 18:40 +0100
    Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-03-17 12:50 +0100
      Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Sakari Ailus <sakari.ailus@linux.intel.com> - 2017-03-17 13:00 +0100
        Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Philipp Zabel <p.zabel@pengutronix.de> - 2017-03-17 15:00 +0100
          Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-03-17 15:50 +0100
            Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Hans Verkuil <hverkuil@xs4all.nl> - 2017-03-20 14:20 +0100
              Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-20 16:20 +0100
        Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-17 15:10 +0100
          Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Pavel Machek <pavel@ucw.cz> - 2017-03-21 12:20 +0100
        Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Hans Verkuil <hverkuil@xs4all.nl> - 2017-03-20 12:20 +0100
      Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Philipp Zabel <p.zabel@pengutronix.de> - 2017-03-17 13:10 +0100
        Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-03-17 13:30 +0100
          Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-03-17 19:00 +0100
      Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit  controls from a pipeline Pavel Machek <pavel@ucw.cz> - 2017-03-19 14:30 +0100
    Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit controls from a pipeline Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2017-03-26 18:50 +0200

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