Re: [SLUG] USB power drain

From: Pete Theisen (petetheisen@verizon.net)
Date: Fri Nov 27 2009 - 22:06:16 EST


Eben King wrote:
> I have several Christmas-themed USB gadgets with LEDs inside. How can I
> read out the amount of power they use? In Windows the Device Manager
> tells you but I have no idea how to do it here. /proc/bus/usb is empty
> when there are no USB devices connected to the data wires (which these
> don't). I know LEDs don't use a lot of power, but I'd like to know when
> I'm about to need a powered hub.
>

Hi Eben,

If you *know* anyone who uses winders, plug the gadgets into their
machine for a second, or however long getting the reading will take.
Their power requirements will be about the same under Linux.

-- 
Regards,

Pete http://pete-theisen.com/ http://elect-pete-theisen.com/ ----------------------------------------------------------------------- This list is provided as an unmoderated internet service by Networked Knowledge Systems (NKS). Views and opinions expressed in messages posted are those of the author and do not necessarily reflect the official policy or position of NKS or any of its employees.



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