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-rwxr-xr-xexamples/key.stp22
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diff --git a/examples/key.stp b/examples/key.stp
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--- /dev/null
+++ b/examples/key.stp
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+#! /usr/bin/env 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_keycode") {
+ if ($down) {
+ if ($keycode == 28)
+ system("play return.wav")
+ else
+ system("play click.wav")
+ }
+}
+
+probe begin {
+ printf("TYPEWRITER ON\n")
+}
+
+probe end {
+ printf("DONE\n")
+}