Nanopi Neo的GPIO没法导出普通引脚？
时间：10-02
整理：3721RD
点击：
近日突发奇想，想要点亮LED灯来玩玩，发现nanopiNeo的7号普通引脚出现下列问题，求大神解答，万分感激
root@NanoPi-NEO:/sys/class/gpio# echo 203 > /sys/class/gpio/export
-bash: echo: write error: Device or resource busy
root@NanoPi-NEO:/sys/class/gpio# echo 203 > /sys/class/gpio/export
-bash: echo: write error: Device or resource busy