LOG("Calling %p(%p) for EndPt %x (%p+0x%x)",
qh->Impl.Callback, qh->Impl.CallbackData,
qh->Impl.Endpt->EndpointID, last->Impl.Ptr, transferred_len);
LOG("Calling %p(%p) for EndPt %x (%p+0x%x)",
qh->Impl.Callback, qh->Impl.CallbackData,
qh->Impl.Endpt->EndpointID, last->Impl.Ptr, transferred_len);