internal static extern ErrorCode GetDeviceList(this UsbContextHandle /* usb_host_context_h */ ctx, out IntPtr /* usb_host_device_h */ devs, out int length);
internal static extern ErrorCode OpenWithVidPid(this UsbContextHandle /* usb_host_context_h */ ctx, int vendorId, int productId, out HostDeviceHandle /* usb_host_device_h */ deviceHandle);
internal static extern ErrorCode SetHotplugCb(this UsbContextHandle /* usb_host_context_h */ ctx, HostHotplugCallback cb, HotplugEventType /* usb_host_hotplug_event_e */ hostEvent, IntPtr /* void */ userData, out IntPtr /* usb_host_hotplug_h */ handle);
