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why the system work at ondemand?

Question asked by 瑞贵 方 on Jul 2, 2016
Latest reply on Jul 3, 2016 by igorpadykov

Hi :

     our system start correctly, but the cpu clock only 392000hz,how can i change the cpu freq from ondemand to performance,when I echo performance > /sys/device/system/cpu/cpu0/cpufreq/scalling_setspeed  ,it turn out invalid  argument.any reply is ok