TaiShanPai/驱动文件/2024-11-4/platform.c

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>

const char *TAG = "MYNEWNODE";
static int gpio_led_probe(struct platform_device *pdev)
{
    // 这里可以添加初始化代码
    printk("%s:probe!\n",TAG);
    return 0; // 返回 0 表示成功
}

static void gpio_led_shutdown(struct platform_device *pdev)
{
    // 这里可以添加关机处理代码
    printk("%s:shutdown!\n",TAG);
}

static const struct of_device_id of_gpio_leds_match[] = {
    { .compatible = "my_backlight", },
    {}
};

MODULE_DEVICE_TABLE(of, of_gpio_leds_match);

static struct platform_driver gpio_led_driver = {
    .probe      = gpio_led_probe,
    .shutdown   = gpio_led_shutdown,
    .driver     = {
        .name   = "my_backlight",
        .of_match_table = of_gpio_leds_match,
    },
};

module_platform_driver(gpio_led_driver);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Your Name");
MODULE_DESCRIPTION("Simple GPIO LEDs driver");