K 10 svn:author V 4 jkim K 8 svn:date V 27 2012-02-15T22:49:25.553133Z K 7 svn:log V 218 Set up an event handler to turn off speaker if user requested it. Speaker will stop beeping after all device drivers are resumed. Use proper API to "acquire" and "release" PIC timer2 for consistency and correctness. END