How to detect headphone controller events?

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https://bbs.archlinux.org – Hello Archers,I just purchased a pair of noise-cancelling headphones. They come with an external controller integrated into the cord. The controller has a "talk mode" button for pausing and unpausing music.The box did not specify any OS requirements and did not come with any software; however, the talk-mode button does not seem to work. No events show up when I press talk-mode while running either of,xevandudevadm monitorand in addition to the lack of detected events, it certainly does not pause mplayer.I got my stfw on and found this same problem on unix.stackexchange.com. That topi (HowTos)