Recently my Mid 2009 15 Inch (2.66 GHz) MacBook Pro's audio-out headphone port has gotten physically "loose". When I plugin anything it easily slips out changing the audio output from "Headphones" to "Built-in speakers".
My audio-in port has not been used very much, and the same mini-jack plugged in there sits tight.
I might be wrong, but I always thought that the audio-in/out ports did not differ much from each other hardware wise, so I was wondering if it is somehow possible to configure my MacBook Pro (software wise) to reverse these ports.
If I could output audio through the audio-in port I would be happy. It would be ideal, but not a necessity and that the Mac would then accept audio through the headphone port.