gpio  x*32+ y*8 + z


pmu

/kernel/drivers/mfd$ vi rk808.c ​


root@EMT100X:/sys/class/gpio/gpio238 # echo 0 > value

root@EMT100X:/sys/class/gpio/gpio238 #

C:\Users\James>adb shell


编译linux

​http://wiki.t-firefly.com/zh_CN/Firefly-RK3288/linux_compile_gpt.html​