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In Reply to: RE: iPad and external DACs posted by rick_m on August 18, 2012 at 06:44:26:
My device allows to switch bus vs. extern.
I'd expect all devices with external PS - switchable or fixed - to announce 0 current consumption to the host. That's not the case.
My cut-the-line test had shown that the host doesn't measure the actual current draw.
My guess that somehow the client firmware must get involved was confirmed by Gordon.
Cheers
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Follow Ups
- RE: iPad and external DACs - soundchekk 06:58:09 08/18/12 (0)