linux keyboard驱动读写

#include <linux/module.h>
#include <linux/input.h>
#include <linux/keyboard.h>

static struct input_dev *input_dev;

static int __init keyboard_init(void) {
    input_dev = input_allocate_device();
    if (!input_dev) {
        printk(KERN_ERR "Unable to allocate input device\n");
        return -ENOMEM;
    }

    input_dev->name = "Simple Keyboard";
    input_dev->phys = "isa0060/serio0/input0";
    input_dev->id.bustype = BUS_ISA;
    input_dev->id.vendor = 0x0001;
    input_dev->id.product = 0x0001;
    input_dev->id.version = 0x0100;

    input_set_capability(input_dev, EV_KEY, KEY_A);

    if (input_register_device(input_dev)) {
        printk(KERN_ERR "Unable to register input device\n");
        input_free_device(input_dev);
        return -EIO;
    }

    printk(KERN_INFO "Keyboard driver loaded\n");
    return 0;
}

static void __exit keyboard_exit(void) {
    input_unregister_device(input_dev);
    printk(KERN_INFO "Keyboard driver unloaded\n");
}

module_init(keyboard_init);
module_exit(keyboard_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Your Name");
MODULE_DESCRIPTION("A simple keyboard driver");