Hi Ricardo,

On Wednesday 07 May 2008, Ricardo Ferreira wrote:
> Hello all,
>
> I stumbled upon a problem when using your driver. It seems that it blocks
> on the first VIDIOC_DQBUF ioctl.
>
> I first noticed it in my code using the latest debian linux-uvc-source on
> an amd64 2.6.24 kernel. I assumed it was my problem so I tried  luvcview
> and noticed that there was always a 2 second block the first time that same
> ioctl was called, but it worked flawlessly after that.
>
> After grabing your latest svn driver, luvcview stopped working, blocking on
> the first call to VIDIOC_DQBUF.
>
> I have an integrated webcam:
> Bus 006 Device 003: ID 05c8:0103 Cheng Uei Precision Industry Co., Ltd
> (Foxlink)
>
> since I never heard of this manufacturer, I tried a phillips spc1000nc
> freshly bought. The results were exactly the same.
>
> Do you think it has to do with the driver, this particular kernel, amd64
> (had some other compatibility issues because of this in the past), or
> anything else?

Could you please retry with r206 and r207 and compare the results ? r207 
introduces a patch to drop incomplete frames.

If reverting to r206 helps, I'll ask you to try a patch to get more 
information about the issue.

Best regards,

Laurent Pinchart
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