V4L mmsp doesn't work

I have been trying to use my Wii to record video. I'm using MIKE p5
kernal with the wiitoo Gentoo distrubution.

I've compiled ffmpeg, but when I try and capture video it fails
because it can't allocate enough memory. I added some debugging code
to ffmpeg and I found that the VIDIOC_QUERYBUF ioctl commend, which
returns the size and location of video buffers in the memory mapped
file, is giving a size of 16777216 and a location of -1412567296.
These are clearly invalid values.

This happens for both the em28xx USB video capture device I have and
the V4L virtual video device.

Does anyone have any suggestions on what the cause could be.

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