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Re: pxa_camera with one buffer don't work




Guennadi Liakhovetski schrieb:
On Fri, 2 May 2008, Stefan Herbrechtsmeier wrote:

I used a modified capture_example.c (with the modification you point me some
emails ago). If I change the
req.count to 1 and remove the restriction I get the select timeout.
I forget to say, that I use V4L2_PIX_FMT_YUYV

Aha, this, certainly, can make a difference! Unfortunately, I don't have a possibility to test with YUYV, so, someone with the hardware has to investigate this further (CC-ing the original YUYV-support in PXA270 author), or I need access to such hardware.

Thanks for your help Guennadi. I have look a little bit into the pxa_camera driver and have a question: The function pxa_camera_dma_irq reset the passed FIFO channel if an overrun occur.
But it should clear the others FIFOs too? Or is this wrong?

Regards
   Stefan

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Dipl.-Ing. Stefan Herbrechtsmeier

Heinz Nixdorf Institute
University of Paderborn System and Circuit Technology Fürstenallee 11
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