📒 笔记文档

leds {
    compatible = "gpio-leds";

    led0: led-0 {
        gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
        linux,default-trigger = "heartbeat";  // 自动心跳闪烁
    };

    led1: led-1 {
        gpios = <&gpio0 RK_PA1 GPIO_ACTIVE_LOW>;
        default-state = "on";                 // 默认亮
    };
};