如何访问嵌套结构的成员，并将从设备树中读取的值分配给它们？

#include <stdio.h>
#include <stdlib.h>
#include <linux/of.h>
#include <linux/of_device.h>

struct nested_struct {
    int value1;
    int value2;
};

struct my_device {
    struct nested_struct nested;
};

int main(void) {
    struct device_node *node;
    struct my_device *dev;
    int ret;

    // 获取设备树节点
    node = of_find_node_by_path("/my_device");
    if (!node) {
        printf("Failed to find device node\n");
        return -1;
    }

    // 分配设备结构体内存
    dev = kzalloc(sizeof(struct my_device), GFP_KERNEL);
    if (!dev) {
        printf("Failed to allocate memory\n");
        return -1;
    }

    // 读取设备树的值并分配给成员
    ret = of_property_read_u32(node, "value1", &dev->nested.value1);
    if (ret) {
        printf("Failed to read value1 from device tree\n");
        return -1;
    }

    ret = of_property_read_u32(node, "value2", &dev->nested.value2);
    if (ret) {
        printf("Failed to read value2 from device tree\n");
        return -1;
    }

    // 打印结果
    printf("value1: %d\n", dev->nested.value1);
    printf("value2: %d\n", dev->nested.value2);

    // 释放内存
    kfree(dev);

    return 0;
}