On Oct 24, 2007, at 7:47 PM, Matt Pobursky wrote:

> I've never seen a USB host or hub that dropped power to an external  
> device
> whether it was bus powered or self-powered.

My mac will drop power to devices connected via the hub in the keyboard,
if it detects that they're drawing too much power (and I get a nice
popup to the effect that I have a USB device drawing too much power,  
too.)

BillW
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