Building for Linux Kernel after version 2.6.36

在2.6.36之後的版本，原先使用的IOCTL已經完全的被移除掉，而在這之後的版本IOCTL可以看到

long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);

其中ioctl改成使用unlocked_ioctl，如果User Space是32位元，Kernel是64位元，則使用compat_ioctl

範例

2.6.35以前使用方式
static struct file_operations MyDriver_fops = {
  .owner = THIS_MODULE,
  .llseek = no_llseek,
  .read = MyDriver_read,
  .write = MyDriver_write,
  .ioctl = MyDriver_ioctl,
  .open = MyDriver_open,
  .release = MyDriver_release
};
2.6.35以後使用方式
static struct file_operations MyDriver_fops = {
  .owner = THIS_MODULE,
  .llseek = no_llseek,
  .read = MyDriver_read,
  .write = MyDriver_write,
  .unlocked_ioctl = MyDriver_ioctl,
  .open = MyDriver_open,
  .release = MyDriver_release
};
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