I have currently the problem when using 2 usb 2.0 cameras and 1 usb 3.0 camera, only the usb 3.0 and one of the usb 2.0 cameras are working.
When using 3 usb 3.0 cameras, they are all working.
I have found out that the usb controller of the nano is down regulating if one usb 2.0 device is detected.
Is there a possibility to prevent this action?
All cameras are/should run with following settings:
640x480 px @ 80-120 FPS