Re: [RFC 2/5] media: v4l2-ctrl: Document V4L2_CID_LOCATION
From: Pavel Machek
Date: Mon Sep 02 2019 - 04:07:01 EST
> > > Single integer. It's read-only, so it just reports the location.
> > >
> > > It would be different if this was a writable control: then you need to
> > > know which locations are possible to set, and that requires a menu type.
> > >
> > > But it doesn't make sense to set the location from software. However, the
> > > location might change as a result of other changes: e.g. if the camera
> > > has motor control of the tilt and the tilt changes from forward facing to
> > > downward facing, then the driver might change the location from FRONT
> > > to DOWN. A convoluted example perhaps, but this is just brainstorming.
> > There are phones with exactly such camera setup. And yes, it makes
> > sense to be writable in that case, as software can move the camera in
> > such case.
> Out of curiosity, what phones are those ?
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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