debugfs例子

static ssize_t anycall_write(struct file *file, const char __user *user_buf,
			      size_t size, loff_t *ppos)
{
	char buf[64];
	int buf_size;
	int ret=0;

	buf_size = min(size, (sizeof(buf) - 1));
	if (strncpy_from_user(buf, user_buf, buf_size) < 0)
		return -EFAULT;
	buf[buf_size] = 0;

	if (ret < 0)
		return ret;
	 
        runAny(buf);
        return size;
}
static const struct file_operations anycall_fops = {
	.owner		= THIS_MODULE,
	.write		= anycall_write,
};

static int __init anycall_init(void)
{
     
	struct dentry *dentry;
	dentry = debugfs_create_file("anycall", S_IRUGO, NULL, NULL,
			     &anycall_fops);
	printk(KERN_ERR "[anycall]install  anycall  !!!!\n");;
	return 0;
}

补充：软件开发 , C++ ,

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