I had a look at this and this but no one sounded particularly sure of their ideas and I\'m kind of after a different thing anyway. I want to hook my usb power cables (red an
No, you won't find a computer that allows you to set this voltage in software. It would break the USB specification.
You can get 150mA by default, and 500mA if your USB device negotiates it with the computer (requiring a little bit of logic in the device). Multiply by 5V to get the provided power.