So I've seen a similar thread to this asking how to get 1.8A out of a single USB port. I've got so far as to know that this isn't possible.
But my question: How do I manipulate the communication between the USB device and the USB Host to make the host constantly put out 500mA? I know that it goes up in 100mA steps but without communication it also stays there. At 100mA.
What do I need this for? Well I'm trying to make my Pringles Speakers USB powered.
Has anyone out there got a solution at hand?
EDIT: Well I guess it will be kinda helpful if I do add some more information.
The Pringles Speaker I'm trying to get USB powered usually runs with 3 AAA batteries at 4.5V. I am using a standard USB wire I had spare and did cut open. Attached everything they way it should be attached. When I now plug the USB cable into my USB slot the Speaker drains power. But it seems like the power isn't enough because the sounds emerging from the speaker are kind of... scratchy. They usually do sound the same when the batteries get low.
So I tried to plug in the speaker in my smartphone charger (5V at 1A). Then it worked like a charm.
Could the possible solution be to use a Y-cable?