-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,7))
-
-#define MINOR_NR \
- (MINOR(file->f_dentry->d_inode->i_rdev))
-
-#else /* Linux kernel > 2.5.7 */
-
-#define MINOR_NR \
- (minor(file->f_dentry->d_inode->i_rdev))
-#endif /* Linux kernel > 2.5.7 */
-
-#if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,5,68)) && !defined(IRQ_RETVAL))
- typedef void irqreturn_t;
- #define IRQ_NONE
- #define IRQ_HANDLED
- #define IRQ_RETVAL(x)
-#endif /* <=2.5.67 */