关于设备树

我执行了/opt/nvidia/jetson-io/jetson-io.py ,配置了些40pin的中的pwm功能后,我发现原来修改设备树的手段失效了,我都是编译生成tegra234-p3767-0003-p3768-0000-a0.dtb,然后替换在/boot/dtb/kernel_tegra234-p3767-0003-p3768-0000-a0.dtb下的文件。是因为/opt/nvidia/jetson-io/jetson-io.py配置后修改了系统启动的设备树指向吗?

Hi 2668729889.

Are you using the devkit or custom board for Orin Nano?
What’s your Jetpack version in use?

Yes, it will modify the /etc/extlinux/extlinux.conf to use /boot/XXX-custom.dtb instead.
Please add your custom device tree configuration in the XXX-custom.dtb for your custom devices.

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