-Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
-Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, const void *Buffer);
+size_t VT_Read(tVFS_Node *Node, off_t Offset, size_t Length, void *Buffer);
+size_t VT_Write(tVFS_Node *Node, off_t Offset, size_t Length, const void *Buffer);