I finally managed to get images from both cameras by setting FPS to 15:

kandin...@derive:~/data/work/hack/pyralax$ luvcview -d /dev/video0 -i
15 & luvcview -d /dev/video1 -i 15

However, when trying to set the camera pfs property to 15 in
python-opencv, I get an error. This line of python:

>  highgui.cvSetCaptureProperty(camera, highgui.CV_CAP_PROP_FPS, 15.0)

produces this output on the console:

> kandin...@derive:~/data/work/hack/pyralax$ python dualcam.py
> HIGHGUI ERROR: V4L: setting property #5 is not supported
> HIGHGUI ERROR: V4L: setting property #5 is not supported
> VIDIOC_STREAMON error 28, No space left on device

Since the driver can set FPS (I tested that with luvcview), I think I
better take this to the python-opencv list.

Cheers and thanks for the help,

Javier Candeira
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