Re: ATMEL camera interface

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Hi,

So I have decided to go with the v4l2-subdev API.
I have taken the omapxxcam and vivi.c as exemple, but I have some questions... I still don't understand how to register a v4l2 device. I tried to copy the method from vivi.c using v4l2_device_register but it is not working? If I just use video_regiter_device, then it is trying to use the default ioctl and open/close functions from v4l2(v4l2_open) instead of the one I hae in my driver...
What am I doing wrong?

BR,
Sedji

Le 5/3/2010 6:40 PM, Guennadi Liakhovetski a écrit :
On Mon, 3 May 2010, Sedji Gaouaou wrote:

Well sorry to bother you again but I am looking at the mx1_camera.c file, and
I wonder where are implemented the queue and dqueue functions?

The atmel IP is using linked list for the buffers, and previously I was
managing it in the queue and dqueue functions.
I am not sure where I should take care of it now?

qbuf and dqbuf are implemented by soc-camera in soc_camera_qbuf() and
soc_camera_dqbuf() respectively, drivers only implement methods from
struct videobuf_queue_ops, e.g., a .buf_queue method, which for mx1_camera
is implemented by mx1_videobuf_queue().

Thanks
Guennadi



Regards,
Sedji

Le 5/3/2010 4:26 PM, Guennadi Liakhovetski a écrit :
On Mon, 3 May 2010, Sedji Gaouaou wrote:

Well I need contiguous memory, so I guess I will have a look at
mx1_camera.c?
Is there another example?

What do you mean by videobuf implementation? As I said I just need a
contiguous memory.

I mean, whether you're gping to use videobuf-dma-contig.c or
videobuf-dma-sg.c, respectively, whether you'll be calling
videobuf_queue_dma_contig_init() or videobuf_queue_sg_init() in your
driver.

Regards
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/




---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/



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