Control playback from Apple based inline headphones.
Here's a summary of how everything works.
-Play/Pause: Shorts-out the microphone.
-Skip/Forward: (Press play/pause twice) shorts-out microphone twice.
-Repeat/Backward: (Press play/pause thrice) shorts-out the microphone thrice.
-Volume Up: Drops microphone voltage from 2.08V to 1.68V.
-Volume Down: Drops microphone voltage from 2.08V to 1.52V.
Note: Since my computer (ThinkPad Edge E420s) has a 4-pin Headset port I can help test builds with this.
Blueprint transformed to bug #1200913.
I'm leaving this request open for a new contributor, because I don't own hardware required to test development of this feature. Is there any open source music player supporting this feature? ~fenryxo
There's some sample code here, I'm not sure if it would help though. http://