AW: CAM / V4L2: OMAP3 camera issues

[Opel Fahrer <opelfahrer79@yahoo.de>]

Hi Sergio,

thanks for your fast reply, it's good to hear that someone already has the issues in mind that I'm talking of. As I mentioned before I haven't done any driver development by now, but maybe it's also a good chance to get a little bit into that now. Currently the one and only real problem with the driver at this time is that the YUYV and YVYU support seems to be broken - it's hard to say because of the heavy over-exposure, but I guess there is something wrong in a conversion or something simple like that. Fixing only this issue (and maybe the auto-exposure) would give us everything we need. However, as soon as you have some time to take a look at that feel free to contact me such that we can further talk about these things.

Regards
Clemens



----- Ursprüngliche Mail ----
Von: "Aguirre Rodriguez, Sergio Alberto" <saaguirre@ti.com>
An: Opel Fahrer <opelfahrer79@yahoo.de>; "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Gesendet: Donnerstag, den 19. März 2009, 16:02:48 Uhr
Betreff: RE: CAM / V4L2: OMAP3 camera issues

Hi Clemens,

I'm the one responsible for this driver, and the features that are added by now are pretty basical.

Currently I'm a bit absorbed by other higher priority tasks, so I haven’t been able to update the driver as fast as I would want.

We are working towards enhancing the driver so most of the features be available, but if you have some enhancement suggestion, I'll invite you to do so.

I appreciate your time.

Regards,
Sergio

> -----Original Message-----
> From: linux-omap-owner@vger.kernel..org [mailto:linux-omap-
> owner@vger.kernel.org] On Behalf Of Opel Fahrer
> Sent: Thursday, March 19, 2009 8:24 AM
> To: linux-omap@vger.kernel..org
> Subject: CAM / V4L2: OMAP3 camera issues
> 
> 
> Hi everybody,
> 
> I just wanted to ask if someone of you recently had a look at the  camera
> driver for the ov3640 sensor included in the omap zoom 1 platform. As I'm
> a total noob in writing drivers I'm searching for someone to help me to
> get this device to work the right way because currently it's really a mess.
> Unfortunately our future work with the omap zoom heavily relies on having
> camera images in reasonable resolutions and reasonable quality, so for us
> there is no way around fixing at least some of these points:
> 
> As far as I have seen there are several issues. The main problem is that
> it is only possible to use a very restricted number of image formats. One
> can use Bayer images in 1024x768 up to 2048x1536 pixels, and using the
> Bayer format is the only way to get RGB images actually. The much more
> appreciated YUYV and YVYU formats seem to be broken somehow, so nobody is
> known to me who was able to decode such an image into a reasonable color
> image yet. Lastly, a problem is that there is no way to control the
> exposure of the sensor, such that the images are all heavily over-exposed
> and there is no way known to me to change any setting to use auto-exposure
> (the feature is reported to be not available by v4l2).
> 
> I'd be happy if someone could help me in fixing some of these problems.
> Regards
> Clemens
> 
> 
> 
> 
> 
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