I need an extension written for a usb hardware device, ProScope ([url removed, login to view]) on the Chrome os platform. I need the Camera program to recognize an hid trigger for capturing the screen image. Our test chromebook (Acer C710-2856) recognizes, and captures images with Camera, utilizing the spacebar for the capture trigger. This is to fulfill a POC, follow on work might be available. I can provide USB Vendor ID and Product ID. A demo unit might be available, pending an agreement.