pm121_register_control
all = pm121_register_control(ct, "optical-drive-fan", FAN_OD) && all;
all = pm121_register_control(ct, "hard-drive-fan", FAN_HD) && all;
all = pm121_register_control(ct, "cpu-fan", FAN_CPU) && all;
all = pm121_register_control(ct, "cpufreq-clamp", CPUFREQ) && all;