Hi Tom;


I’m sorry. I don’t know what you mean ?


When you plug in the dongle , the adapter powers it up.

What’s to change in the Kernel ?

What checks ?


The dongle would have to be plugged in when you powered up the Overo. It wouldn’t be hot swapable ..




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and self-restraint enough to keep from meddling with them while they do it.

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From: Tom Calef [mailto:TCalef@HatchScience.com]
Sent: Thursday, January 27, 2011 3:12 PM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] External Power for USB


That should work fine, but do you know what to set in the kernel to make it get past the checks?


From: Thomas Epperson [mailto:thomas.epperson@gmail.com]
Sent: Thursday, January 27, 2011 2:13 PM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] External Power for USB


That should work.

On Thu, Jan 27, 2011 at 12:28 PM, William Pretty Security Inc <bill.pretty@xplornet.com> wrote:

First of all I’m more of a hardware person, so my solutions tend to be hardware based J


That being said, here is my proposed solution:


In the attached schematic, you use the +5V from the USB input connector as a logic signal to turn on the FET.

Because FET’s are voltage controlled devices, it takes very little current to turn them on J


If you use a high current FET and a high current supply you could supply AMPS to the USB device JJJ


What do you guys think ??



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stand ready to do violence on their behalf." - George Orwell


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