Connect self-powered USB storage devices?

Ian Stirling openmoko at
Sat Feb 17 21:20:20 CET 2007

Mikko Rauhala wrote:
> pe, 2007-02-16 kello 12:37 -0600, Steven ** kirjoitti:
>> So, I know the USB port is a mini and it's unpowered. But...
>> Assuming there's a USB mini to full USB adapter, is there any reason
>> you couldn't connect the Neo to a USB hard drive?  Most (all) of the
>> USB hard drives I've seen had a external power supply.
> This is exactly the issue I suggested a wiki page for just a bit ago;
> As said, I'd _guess_ it'd probably work, but since it's non-standard,
> there's valid leeway for it not to, so we'd likely need to document
> devices that are (un)co-operative directly with the powerless Neo host.

As one datapoint, the Belkin Tetrahub I have will not recognise a 
powerless (VCC=0V) host.
It will stay connected to a host that has VCC fall to 0V.
(I have a Cardbus USB adaptor, that needs a USB fly-lead for power)

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