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We have a custom board with GPIO_X1_AUD_PX1 connected to an LED. I want to set up the device tree such that this LED is a heartbeat. I’ve added the following to the device tree, but don’t see any new entries under /sys/class/leds (the only thing there is m

设备树 Linux_for_Tegra/source/public/hardware/nvidia/platform/t19x/galen/kernel-dts/tegra194-p2888-0001-p2822-0000.dts #include "common/tegra194-p2888-0001-p2822-0000-common.dtsi" #include "common/tegra194-p2822-camera-modules.dtsi" #include "t19x-common-modu

sudo apt-get install busybox /sys/class/pwm# ls -l lrwxrwxrwx 1 root root 0 Apr 20 10:10 pwmchip0 -> ../../devices/3280000.pwm/pwm/pwmchip0 pwm1 lrwxrwxrwx 1 root root 0 Apr 20 10:10 pwmchip1 -> ../../devices/c340000.pwm/pwm/pwmchip1