Alan,
2005/9/5, Alan Stern <[EMAIL PROTECTED]>:
> > > On the third hand, who would ever make an embedded hub with only one,
> > > fixed downstream port? Why not leave out the hub and attach the upstream
> > > port directly to the downstream device?
> > >
> >
> > surely because the downstream device is a high speed device ?
>
> That's not a good reason. The internal hub is also a high-speed device.
> What advantage is there in putting the hub between the device and the
> upstream port?
>
USB 2.0 spec, chapter 5-2-3. Doesn't it mean that a hub isolates the
full/low speed environment from the high speed one ?
Thanks
--
Franck
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