linux-kernel - Re: [PATCH, libv4l]: Make libv4l2 usable on devices with complex pipeline

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Message-ID: <20180723153649.73337c0f@coco.lan>
Date:   Mon, 23 Jul 2018 15:36:57 -0300
From:   Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
To:     Pavel Machek <pavel@....cz>
Cc:     pali.rohar@...il.com, sre@...nel.org,
        kernel list <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-omap@...r.kernel.org, tony@...mide.com, khilman@...nel.org,
        aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
        patrikbachan@...il.com, serge@...lyn.com, abcloriens@...il.com,
        clayton@...ftyguy.net, martijn@...xit.nl,
        sakari.ailus@...ux.intel.com,
        Filip Matijević <filip.matijevic.pz@...il.com>,
        mchehab@...pensource.com, sakari.ailus@....fi,
        linux-media@...r.kernel.org, hans.verkuil@...co.com
Subject: Re: [PATCH, libv4l]: Make libv4l2 usable on devices with complex
 pipeline

Hi Pavel,

Em Thu, 19 Jul 2018 22:53:44 +0200
Pavel Machek <pavel@....cz> escreveu:

> On Sun 2018-07-08 23:32:58, Pavel Machek wrote:
> > 
> > Add support for opening multiple devices in v4l2_open(), and for
> > mapping controls between devices.
> > 
> > This is necessary for complex devices, such as Nokia N900.
> > 
> > Signed-off-by: Pavel Machek <pavel@....cz>  
> 
> Ping?
> 
> There's a lot of work to do on libv4l2... timely patch handling would
> be nice.

As we're be start working at the new library in order to support
complex cameras, and I don't want to prevent you keeping doing your
work, IMHO the best way to keep doing it would be to create two
libv4l2 forks:

	- one to be used by you - meant to support N900 camera;
	- another one to be used by Google/Intel people that will
	  be working at the Complex camera.

This way, we can proceed with the development without causing
instability to v4l-utils. Once we have the projects done at the
separate repositories, we can work on merging them back upstream.

So, please send me, in priv, a .ssh key for me to add you an
account at linuxtv.org. I'll send you instructions about how to
use the new account.

Thanks,
Mauro