Source position: libusb.pp line 1100
type libusb_capability = (
LIBUSB_CAP_HAS_CAPABILITY = $0000,
LIBUSB_CAP_HAS_HOTPLUG = $0001,
LIBUSB_CAP_HAS_HID_ACCESS = $0100,
LIBUSB_CAP_SUPPORTS_DETACH_KERNEL_DRIVER = $0101
);