@ryotsuke @zachary, there is no HID support built into photon currently as the USB peripheral on photon is different and so require some amount of porting work to get the Keyboard/Mouse HID working on the newer photon.
Now since we have our own USB vendor ID, we can assign a new product ID for HID devices.
Will discuss with the team internally to start the groundwork on HID porting in one of our sprint.