Re: Charging iPod / Listening to music
- From: "Douglas A. Tutty" <dtutty@xxxxxxxxxxxxx>
- Date: Wed, 31 Oct 2007 08:41:38 -0400
On Tue, Oct 30, 2007 at 06:14:49PM -0600, Nate Duehr wrote:
On Oct 30, 2007, at 4:01 PM, Mathieu Malaterre wrote:
It works, I can listen to music again, but even if the cable is
pluged it does not seems to be charging...
That makes sense. USB devices have to "request" how much power-draw
they want to pull from the host. If you kill the "stuff" that talks
to USB devices, they can't request power.
Then how does my USB light get power; surely it doesn't "request" enough
power to run an LED? I can also charge my Palm with the computer off;
there's nothing running to receive any "request".
Doug.
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