extern static IOReturn IOHIDDeviceCopyValueMultipleWithCallback( IOHIDDeviceRef device, CFArrayRef elements, ref CFDictionaryRef pMultiple, CFTimeInterval timeout, IOHIDValueMultipleCallback callback, IntPtr context);
extern static IOReturn IOHIDDeviceCopyValueMultipleWithCallback ( IOHIDDeviceRef device, CFArrayRef elements, ref CFDictionaryRef pMultiple, CFTimeInterval timeout, IOHIDValueMultipleCallback callback, IntPtr context);
extern static IOReturn IOHIDDeviceSetValueMultipleWithCallback( IOHIDDeviceRef device, CFDictionaryRef multiple, CFTimeInterval timeout, IOHIDValueMultipleCallback callback, IntPtr context);