драйвер WDM на masm32

DispatchWrite proc uses esi edi ebx pDeviceObject:PDEVICE_OBJECT, pIrp:PIRP
local status:NTSTATUS
    mov esi, pIrp
    assume esi:ptr _IRP
            mov edi, [esi].AssociatedIrp.SystemBuffer
           
assume edi:ptr DWORD
;invoke GetPhysicalAddress, edi
;mov edi,eax
                mov eax,[edi]
                mov dx,378h
                                out dx,al
    mov [esi].IoStatus.Status, STATUS_SUCCESS
    and [esi].IoStatus.Information, 0
    assume eax:nothing

    fastcall IofCompleteRequest, pIrp, IO_NO_INCREMENT

    mov eax, STATUS_SUCCESS
    ret

DispatchWrite endp

DriverEntry proc ..........
........
mov [eax].MajorFunction[IRP_MJ_WRITE*(sizeof PVOID)],   offset DispatchWrite
.........
DriverEntry endp