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Christian Légaré
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Re: Nov 26 - Day 1: Implementing USB in Embedded Products
Christian Légaré   11/26/2012 2:47:17 PM
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 I was wondering about the USB ports embedded in laptops. It appears that the front USB ports aren't the same as the rear USB ports. One set will show a modem folder in Device Manager while the other set will not. Is there a hierarchy in USB? Is this a Host Controller issue?

 

Yes, in this case the front ports are driven by one USB Host controller and the rear ports by a different (second) one.

It is a capability issues. There is not hierarchy.



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