Q:

getting a list of usb devices attached on Mac in xcode

I am pretty much new-bie to IOS development.
I would like to get the list of USB devices attached on my Mac using Xcode.
I am working on an IOS app, in which I would like get the list of USB devices in a dropdown menu(if IOS supports that) and once I select the USB device, I would like to perform some action on it.
Is there any framework or a built-in class that would be of any help? 
An example will be very much appreciated.
Thanks a ton in advance.

A:

Xcode 4 User Guide > Manage Your Devices
Xcode 4 User Guide > Build and Run Your App > Create, Edit, and Manage Schemes

