linux-kernel - Re: [PATCH RFC 0/2] pxa_camera transition to v4l2 standalone device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 21 Mar 2016 09:13:59 +0100
From:	Hans Verkuil <hverkuil@...all.nl>
To:	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Guennadi Liakhovetski <g.liakhovetski@....de>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>
Cc:	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC 0/2] pxa_camera transition to v4l2 standalone device

On 03/19/2016 10:01 PM, Robert Jarzmik wrote:
> Hi Hans and Guennadi,
> 
> As Hans is converting sh_mobile_ceu_camera.c,

That's not going as fast as I hoped. This driver is quite complex and extracting
it from soc-camera isn't easy. I also can't spend as much time as I'd like on this.

> let's see how close our ports are
> to see if there are things we could either reuse of change.
> 
> The port is assuming :
>  - the formation translation is transferred into soc_mediabus, so that it can be
>    reused across all v4l2 devices

At best this will be a temporary helper source. I never liked soc_mediabus, I don't
believe it is the right approach. But I have no problem if it is used for now to
simplify the soc-camera dependency removal.

>  - pxa_camera is ported
> 
> This sets a ground of discussion for soc_camera adherence removal from
> pxa_camera. I'd like to have a comment from Hans if this is what he has in mind,
> and Guennadi if he agrees to transfer the soc xlate stuff to soc_mediabus.

Can you provide the output of 'v4l2-compliance -s' with your new pxa driver?
I would be curious to see the result of that.

Regards,

	Hans