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Re: Control USB Power

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Re: Control USB Power

Subject: Re: Control USB Power
From: David Duncan <email@hidden>
Date: Thu, 12 Jun 2008 23:01:44 -0700

On Jun 12, 2008, at 10:38 PM, Omar Qazi wrote:

I have a Cocoa application that controls an external USB device. I want to be able to turn the device off when the user performs some action, like click a button. Is there a way in Cocoa or IOKit to disable power to a USB Socket? The application runs on Leopard.

Are you really sure you want to turn off the USB socket itself? It would seem to me that you really want to use a device that has software control over its power state instead and that you would just send the proper message to turn it on or off rather than turning off the USB socket. That said, I have no idea if what you are asking is possible... -- David Duncan Apple DTS Animation and Printing email@hidden

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