Re: soc_camera: OV2640

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Hi Guennadi,

On 12/7/09, Guennadi Liakhovetski <g.liakhovetski@xxxxxx> wrote:
> Hi Alan
>
> On Mon, 7 Dec 2009, Alan Carvalho de Assis wrote:
>
> It's always better to cc a suitable list, in this case it is
>
> Linux Media Mailing List <linux-media@xxxxxxxxxxxxxxx>
>

Sure, here we go.

>
>> I am trying to use an OV2640 camera with soc_camera.
>>
>> I'm using ov772x driver as base, but it needs too much modification to
>> work with ov2640.
>
> I don't know that sensor specifically, but they can be quite different.
>

Yes, in fact ov2640 appears quite different compared to ov772x and ov9640.

>> The OV2640 chip remaps all registers when register 0xFF is 1 or when it is
>> 0.
>
> This is not unusual. There are a few ways to implement this, for example,
> drivers/media/video/rj54n1cb0c.c uses 16-bit addresses, and decodes them
> to bank:register pairs in its reg_read() and reg_write() routines.
>

Ok, I will try to implement it this way, case nobody suggests me a
better approach.

Best Regards,

Alan
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