Rebuilding kernel on BeagleBone running ubuntu

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Hello,

Question: Can someone point me to some directions (step by step please, I’m a linux noob) on how to rebuild the kernel (cross compile from my PC would be preferable) on my BeagleBone running Ubuntu? I thought this should be pretty common, but I haven’t been able to find a good reference.

Background: I am trying to write an app which uses OpenCV to read frames from a webcam. However, when I call the cvGetCameraCapture function, it always returns NULL. I read on another thread that this can be fixed by setting CONFIG_MUSB_PIO_ONLY=y in the kernel configuration. I’ve never build a kernel though, and can’t find good instructions on how to do this.

Any help would be appreciated.

Thanks,
Nick

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FWIW angstrom has both DMA disabled for MUSB and opencv installed by default, so give that a try.