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

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Date:   Sat, 11 Mar 2017 12:33:29 -0800
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     Pavel Machek <pavel@....cz>
Cc:     Sakari Ailus <sakari.ailus@....fi>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Hans Verkuil <hverkuil@...all.nl>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        kernel@...gutronix.de, fabio.estevam@....com, mchehab@...nel.org,
        nick@...anahar.org, markus.heiser@...marIT.de,
        p.zabel@...gutronix.de, laurent.pinchart+renesas@...asonboard.com,
        bparrot@...com, geert@...ux-m68k.org, arnd@...db.de,
        sudipm.mukherjee@...il.com, minghsiu.tsai@...iatek.com,
        tiffany.lin@...iatek.com, jean-christophe.trotin@...com,
        horms+renesas@...ge.net.au, niklas.soderlund+renesas@...natech.se,
        robert.jarzmik@...e.fr, songjun.wu@...rochip.com,
        andrew-ct.chen@...iatek.com, gregkh@...uxfoundation.org,
        shuah@...nel.org, sakari.ailus@...ux.intel.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org
Subject: Re: [PATCH v4 14/36] [media] v4l2-mc: add a function to inherit
 controls from a pipeline



On 03/11/2017 12:26 PM, Pavel Machek wrote:
> Hi!
>
>>>> I tend to agree with that.
>>>
>>> I agree as well.
>>>
>>> This is in line with how existing drivers behave, too.
>>
>>
>> Well, sounds like there is consensus on this topic. I guess I'll
>> go ahead and remove the control inheritance support. I suppose
>> having a control appear in two places (subdev and video nodes) can
>> be confusing.
>
> I guess that's way to go. It is impossible to change userland APIs
> once the patch is merged...

Ok, not including myself, it's now 4 in favor of removing, 1 against...

Steve