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Date: Wed, 31 May 2017 22:11:07 +0200
From: Pavel Machek <pavel@ucw.cz>
To: Steve Longerbeam <slongerbeam@gmail.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>,
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Subject: Re: [PATCH v7 00/34] i.MX Media Driver
Message-ID: <20170531201107.GB16962@amd>
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Hi!

> >If there's a need for this (there should not be, as the controls are exp=
osed
> >to the user space through the sub-device nodes as the other drivers do),=
 the
> >framework APIs need to be extended.
>=20
> Right, this gets back to the media framework usability arguments. At least
> myself, Philipp, and Russell feel that automatic inheritance of a configu=
red
> pipeline's controls to a video device adds to the usability.

For the record, usability can be pretty much fixed in v4l-utils... I
have patches that try ioctls on a list of fd's. Now we need a way to
find out which /dev/video* files belong to single camera. I believe
kernel already has required APIs, we just need to apply v4l-utils
patch to use them...

									Pavel
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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