Hi Does the Colibri T30 running WinCe7 support USB gamepad controller (xbox, playstation, etc)?
There is no direct support for this controllers. I know that XBOX will report it self as custom device and you will need to write driver for that.
PS4 controller reports it self as HID device. You can find description of the reports here → DS4-USB - PS4 Developer wiki
If you take HID mouse driver from WinCE you should be able to add some support for this controller.