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使用最新版的官方sdk,配置内核,系统中没有cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq



无论我怎么配置内核,系统中都没有

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq这个文件,我也不知道现在主频是多少,怎么解决呢