On Sunday August 20 2006 11:02 am, Mikkel L. Ellertson wrote: > To make things more interesting, sometimes the problem is a USB 1.1 > device on a USB 2.0 controller. I can't remember the devices off > hand, but I have run into a couple of USB devices that said they > would work at 2.0 speeds when they really couldn't. They would work > fine when hooked to a USB 1.1 controller or hub, but not when hooked > to a 2.0 controller or hub. There are also some devices that will > not work correctly with some hubs. But using a different hub solves > the problem. It all depends on how well the specs are follower, I > guess. At times, I think it is just how the different manufacturers > shortcuts work together. There was a transitional time of confusion when the USB spec was being enhanced. Many devices labeled USB 2 were not. They had perhaps additional features over the original spec, but they were not faster. That created a lot of problems - my experience has been exactly what you describe. -- Claude Jones Brunswick, MD, USA
