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在文件IO操作时报错：
echo 202 > /sys/class/gpio/export 报错 no such file or directory
我要操作的是gpio202，但在/sys/class/gpio/下并未发现gpio202，只有如下节点，请问是需要在内核设备树中添加相应的节点吗？如何添加？谢谢
请贴出您的SDK版本。
设备树中添加节点请参考以下链接：
https://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Foundational_Components/Kernel/Kernel_Drivers/GPIO.html
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/729711/linux-am5728-gpio-configuration
