On Fri, Mar 15, 2013 at 10:11:04AM +0200, Felipe Balbi wrote:
> Hi,
> 
> 
> if you look at your PCB, VBUS, D+ and D- are directly routed to the PHY,
> not the USB controller itself.
> 
> If you read ULPI and UTMI specs, you'll see that there are methods for
> the PHY to tell the USB controller about VBUS levels, so the PHY manages
> VBUS.

After talking with IC guys, I agree with you.

> 
> -- 
> balbi



-- 

Best Regards,
Peter Chen

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