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现需要将am335x变为低功耗模式，请问如何实现

yi ren1
Intellectual 292 points


参考AM335x Linux Power Management User Guide手册。打[root@arago /]# echo mem > /sys/power/state 命令后。出现以下错误：

root@arm:/sys/power# echo mem > /sys/power/state

bash: echo: write error: No such device

root@arm:/sys/power#

 

请问如何解决。用的板子是官方的bb black。