I am trying to get a webcam to work on a gumstix board.

Currently I am using Gumstix Board Verdex XM4 with a Console-VX Expansion board

Webcam works through uvc driver - I have referred to this guide for driver installation

Webcam is plugged to a usb port of the expansion board through a gender changer.

So, the deriver seems to be running (as far as I can tell), but when I plug in webcam nothing happens.

I am trying to figure out what the problem is - any suggestions? I not even sure if this is a software or hardware problem, so it probably would be a good idea to try to get some other usb device to work. What is the easiest way to check that the usb port is working?

Also, I have 4 V in the power supply instead of 5 V that I think usb needs, could that be a problem?

Thank you,