_WAIT_CONTEXT_BLOCK

//0x28 bytes (sizeof) struct _WAIT_CONTEXT_BLOCK { union { struct _KDEVICE_QUEUE_ENTRY WaitQueueEntry; //0x0 struct { struct _LIST_ENTRY DmaWaitEntry; //0x0 ULONG NumberOfChannels; //0x8 ULONG SyncCallback:1; //0xc ULONG DmaContext:1; //0xc ULONG Reserved:30; //0xc }; }; enum _IO_ALLOCATION_ACTION (*DeviceRoutine)(struct _DEVICE_OBJECT* arg1, struct _IRP* arg2, VOID* arg3, VOID* arg4); //0x10 VOID* DeviceContext; //0x14 ULONG NumberOfMapRegisters; //0x18 VOID* DeviceObject; //0x1c VOID* CurrentIrp; //0x20 struct _KDPC* BufferChainingDpc; //0x24 };