struct _INTERRUPT_LINE_INTERNAL_STATE {
unsigned char Fixed;/* 0x0 1 */
unsigned char Irql;/* 0x1 1 */
unsigned char Swapping;/* 0x2 1 */
/* 1 byte padding */
unsigned long OldClusterId;/* 0x4 4 */
unsigned long OldClusterMask;/* 0x8 4 */
unsigned char LineStateDetermined;/* 0xc 1 */
};