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v4l2-compliance failures

Question asked by Ken Frederickson on Jun 28, 2013
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Hello,

 

I'm trying to troubleshoot issues with capturing and displaying video on an i.MX6 Sabre board.  Video drivers are not my forte.

 

We're using Yocto to build our bsp and I have added the v4l2-utils packages and dependencies.  A result of adding this package is the v4l2-compliance tool.  When running that tool, there are several failures.  Please see attached.  I have read in other posts that claim success despite v4l2-compliance issues. 

 

I also performed an strace on an application that is attempting to access /dev/video0.  Please see attached.  It is obvious that the driver is not providing some of the necessary functionality, namely VIDIOC_TRY_FMT and VIDIOC_QUERYCTRL.

 

My question is, do I have a broken driver that needs to be patched or are these failures normal?  Has anyone experienced this issue?

 

Thanks.

Original Attachment has been moved to: AppStrace.zip

Original Attachment has been moved to: v4l2ComplianceOutput.zip

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