How do I check if the iPod supports audio recording?

How do I check 开发者_如何学JAVAif the iPod supports audio recording using Cocoa API?

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If you know what devices support audio recording (iPhone always does for example) you can use methods from this question:

Determine device (iPhone, iPod Touch) with iPhone SDK

Actual testing for input device connected can be done by Audio Session Services shown in this solution:

Detecting iPhone/iPod Touch Accessories