#!/usr/bin/stap # Useless, but amusing. Based on an idea I saw on a # dtrace site. (wav files are from emacs). // KEY_ENTER = 28 probe kernel.function("kbd_event") { if ($event_type == 1 && $value) { if ($event_code == 28) system("play return.wav &> /dev/null") else system("play click.wav &> /dev/null") } } probe begin { printf("TYPEWRITER ON\n") } probe end { printf("DONE\n") }

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