linux-kernel - Re: [PATCH] userspace API definitions for auto-focus coil

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Message-ID: <20160713072638.GB3781@amd>
Date:	Wed, 13 Jul 2016 09:26:38 +0200
From:	Pavel Machek <pavel@....cz>
To:	Mauro Carvalho Chehab <mchehab@....samsung.com>
Cc:	Sakari Ailus <sakari.ailus@....fi>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	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, patrikbachan@...il.com, serge@...lyn.com,
	linux-media@...r.kernel.org, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH] userspace API definitions for auto-focus coil

On Tue 2016-07-12 20:32:01, Mauro Carvalho Chehab wrote:
> Em Sat, 18 Jun 2016 17:38:46 +0200
> Pavel Machek <pavel@....cz> escreveu:
> 
> > Hi!
> > 
> > > > Not V4L2_CID_USER_AD5820...?  
> > > 
> > > The rest of the controls have no USER as part of the macro name, so I
> > > wouldn't use it here either.  
> > 
> > Ok.
> > 
> > > > Ok, separate header file for 2 lines seemed like a bit of overkill,
> > > > but why not.  
> > > 
> > > That follows an existing pattern of how controls have been implemented in
> > > other drivers.  
> > 
> > Ok.
> > 
> > > Could you merge this with the driver patch? I've dropped that from my ad5820
> > > branch as it does not compile.  
> > 
> > Yes, merged patch should be in your inbox now.
> 
> The V4L2 core changes should be on a separate patch. Btw, you'll also
> need to patch documentation to reflect such changes. We're right now
> moving from DocBook to ReST markup language. The patches for it are
> right now on a separate topic branch (docs-next), to be merged for
> Kernel 4.8 on the next merge window.

What about: I drop all the functionality but FOCUS_ABSOLUTE, which is
core functionality, anyway, and does not need core changes. When V4L2
core stabilizes, it can be reintroduced.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html