Two very similar devices, with two functions - a regular camera and IR.
The peculiarity of their infrared camera is that it uses a color image
format (YUYV), although it is essentially black and white.
The IR camera interface differs from the regular camera interface by name:
"HP Wide Vision FHD Camera: HP W" for the regular camera and
"HP Wide Vision FHD Camera: HP I" for an infrared camera
Therefore, glob *I is used to separate the IR camera
