//0x10 bytes (sizeof)
struct _TP_DIRECT
{
    VOID (*Callback)(struct _TP_CALLBACK_INSTANCE* arg1, struct _TP_DIRECT* arg2, VOID* arg3, struct _IO_STATUS_BLOCK* arg4); //0x0
    ULONG NumaNode;                                                         //0x8
    UCHAR IdealProcessor;                                                   //0xc
};