Using cpufreq governors. Mode is powersave, dynamic or performance. We're assuming that 
    the available governors are the same for all CPUs. This method changes the cpufreq 
    governor on all CPUs to a certain policy.

00403                                  :
        """ Using cpufreq governors. Mode is powersave, dynamic or performance. We're assuming that 
            the available governors are the same for all CPUs. This method changes the cpufreq 
            governor on all CPUs to a certain policy."""
        if not self.USE_CPUFREQ or not self.hasCpuFreqGovernors:
            return False

        if policy == "dynamic":
            if self.onBattery():
               policy = "dynamic/battery"
            else:
               policy = "dynamic/ac"

        for gov in self.cpu_policy[policy]:
            try:
                self.cpufreq.SetCPUFreqGovernor(gov)
                return True
            except dbus.DBusException:
                pass 
        return False # no of governor worked

    def cpuIsOnline(self,cpu):