Re: pxa_camera with one buffer don't work
- Date: Fri, 02 May 2008 15:01:08 +0200
- From: Stefan Herbrechtsmeier <hbmeier@xxxxxxxxxxxxxxxxxxxx>
- Subject: 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
--
Dipl.-Ing. Stefan Herbrechtsmeier
Heinz Nixdorf Institute
University of Paderborn
System and Circuit Technology
Fürstenallee 11
D-33102 Paderborn (Germany)
office : F0.415
phone : + 49 5251 - 60 6342
fax : + 49 5251 - 60 6351
mailto : hbmeier@xxxxxxxxxx
www : http://wwwhni.upb.de/sct/mitarbeiter/hbmeier
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