DOCUMENT:Q268743 29-OCT-2000 [winnt] TITLE :PRB: Passing DeviceObject to HalAssignSlotResources Is Mandatory PRODUCT :Microsoft Windows NT PROD/VER:WINDOWS:; winnt: OPER/SYS: KEYWORDS:kbDDK kbKMode kbOSWin2000 kbDSupport kbGrpDSNTDDK ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Driver Development Kit (DDK) ------------------------------------------------------------------------------- SYMPTOMS ======== HalAssignSlotResources returns STATUS_INVALID_PARAMETER_3 if the DeviceObject parameter is NULL. CAUSE ===== HalAssignSlotResources is obsolete and is exported only to support existing drivers. Drivers of Plug and Play (PnP) devices are assigned resources by the PnP Manager, which passes resource lists with each IRP_MN_START_DEVICE request. On a computer running Windows 2000, all the bus-related hardware abstraction layer (HAL) functions are patched to call the actual bus driver. Because the bus driver tracks resources on a PDO basis, the system needs a device object to simulate (fake) a PDO. RESOLUTION ========== You must specify a device object when you use HalAssignSlotResources. STATUS ====== This behavior is by design. Additional query words: ====================================================================== Keywords : kbDDK kbKMode kbOSWin2000 kbDSupport kbGrpDSNTDDK Technology : kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbwin2000DDK kbAudDeveloper kbWinDDKSearch kbWinAdvServSearch Version : WINDOWS:; winnt: Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.