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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