Segmentation fault in uvc.Capture with SG12 camera

[99991]

I get a segmentation fault in uvc.Capture(device) using the provided example.py with a SG12 camera connected via USB.
This happens because the pointer frame_desc.intervals is NULL here:

pyuvc/uvc.pyx

Line 669 in 066496b

while frame_desc.intervals[i]:

Providing a fixed framerate (I tried fps 1-1000) to uvc_get_stream_ctrl_format_size leads to error return code -51, i.e. Mode not supported.
The camera works with ffmpeg (although it drops frames frequently), so it is not broken.
pyuvc works with a different webcam, so the installation is ok, too.

[brandonhanner]

Im getting the same error trying to run the example with a logitech c270. The test runs for a single loop of the 10 iteration and gets a segmentation fault...