On Mon, Aug 19, 2013 at 4:53 PM, Tom <Bassai_Dai@xxxxxxx> wrote:
>
> you are right. it seems that the list of the ccdc has no buffer left,
> because the printk("TOM ccdc_isr_buffer ERROR 1 ##########\n"); is shown in
> my log. But I don't understand what I need to do to solve the problem.
> What I do is:
> - configure the pipeline
> - open the video device
> - do ioctl VIDIOC_REQBUFS (with memory = V4L2_MEMORY_MMAP and type =
> V4L2_BUF_TYPE_VIDEO_CAPTURE)
> - do ioctl VIDIOC_QUERYBUF
> - do ioctl VIDIOC_STREAMON
> - do ioctl VIDIOC_QBUF
>
> without fail. and when I do ioctl VIDIOC_DQBUF. I get my problem.
>
> Does anyone have an idea what I need to do to solve this problem?
Even if you are sure your application works, try with media-ctl +
yavta first so you can send logs that everybody understand.
Did you check you have interrupts during capture? (cat
/proc/interrupts before and after yavta, look for omap3isp or
something like that).
Enrico
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