Can't edit "/sys/devices/virtual/sound/timer/dev" file
<pre><code>public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }


    private static final String SYSFS = "/sys/devices/virtual/sound/timer/dev";
    public void Place1() throws IOException {
        // Open the sysfs file for writing and write "116:33/34" to it.  
        PrintWriter outStream = new PrintWriter(new FileWriter(SYSFS));
        outStream.write("116:34");
        outStream.close();
    } 

}
</code></pre>

<p>I'm new at Java and Android development, so I'm writing this simple code to change a <strong>dev</strong> file but it seems to not work. The <strong>dev</strong> file has all -rw permissions. I tried to do it in a couple of ways, but every time it was unsuccessful.</p>

<p><strong>Note</strong>: My phone is rooted.</p>
