echo 195 > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio195/direction
echo "1" > /sys/class/gpio/gpio195/value
echo "0" > /sys/class/gpio/gpio195/value
rk3288控制某个GPIO输出
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转载自blog.csdn.net/qq_32017483/article/details/96146239
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