Is it the only way to allocate a Power IRP using PoRequestPowerIrp?

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  - 1
    - Sort-of-Newbie Question(s) Greetings! I have written once a communication device driver for Windows 95, then Windows 2000 many years ago... then life took me to higher level programming and I completely forgot about writing device drivers. Now, life takes me back to what seems to be a need to implement a device driver - this time for Windows XP and Vista. So, my first question (before starting to look for the right source of literature, development kits etc.) is: is the driver model for XP/ Vista still WDM (as introduced in Windows 98/2000)? Now... I am not really sure I must implement the virtual audio device that is needed for the system as device driver. My goal is to create an audio device that is available to other applications in the system (just like the default ones) - an audio device that is not really tied to hardware but takes its input from an incoming data stream and outputs it to a buffer that is read by another application. Thus, I am wondering: can this be accomplished only by writing a device driver? Or can this be done using user-mode Win32 API? If indeed I arrived to the right group (meaning this is a classic device driver task) could you please give me a hint or a tip what to look for when searching for a tutorial or even a sample for creating such a (virtual?) audio device? Thanks in advance, Don Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92908
  - 2
    - Header Files for DX10 in WDK 6000 Dear all, Does anyone have any information regarding the header files that need for developed the display driver for DX10? The files, D3d10umddi.h and Dxgiddi.h, may be not packaged in WDK 6000. Thanks a lot~~~ Jason Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92906
  - 3
    - uninstall an intermediate network filter driver? Does anyone have any information regarding the uninstallation of the ndis im driver programmatically? When removing a device (used passthru as an example) using the SetupDiCallClassInstaller's DIF_REMOVE command, the class installer fails to access the device. Manually one can remove it via the network adapter's service, however it cannot even be uninstalled manually via the device manager. So is there perhaps another method used? Any additional guidance would be appreciated! snippet from the setupapi.log: #-147 Loading class installer module for "Passthru Miniport". #V132 File "C:\WINDOWS\INF\certclas.inf" (key "certclas.inf") is signed in catalog "C:\WINDOWS\system32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\NT5INF.CAT". #V286 Verification using alternate platform (Platform = 2, High Version = 5.1, Low Version = 5.0). #V132 File "C:\WINDOWS\system32\NetCfgx.dll" (key "NetCfgx.dll") is signed in catalog "C:\WINDOWS\system32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\NT5.CAT". #-166 Device install function: DIF_REMOVE. #E154 Class installer failed. Error 5: Access is denied. Thanks! Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92904
  - 4
    - ZwDeviceIoControl Hi, Can someone tell me which .lib file I need to link against when calling the ZwDeviceIoControl? Thanks, Prasanna Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92897
  - 5
    - USB Device "Code 10" failure under Vista I have a kernel-mode driver (WDF) that works fine in all versions except for Vista. In Vista during driver installation I get a "This device cannot start (Code 10)" error. I believe I have traced it down to a call of WdfUsbTargetDeviceSelectConfig() which is returning STATUS_INVALID_PARAMETER. I'm confused because this driver works fine under non-vista versions (at least Win2k, and XP). Does anyone know of anything that might be causing this? I have examined the parameters and can't see where anyone of them is invalid. My call looks like: status = WdfUsbTargetDeviceSelectConfig(pDeviceContext->UsbDevice, WDF_NO_OBJECT_ATTRIBUTES, &configParams); Where pDeviceContext->UsbDevice was set with a call to WdfUsbTargetDeviceCreate() which returned STATUS_SUCCESS and configParams was initialized with WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE() Thanks. Greg Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92893
  - 6
    - What is WLH and WNET I am to build an x64 driver for AMD64 Windows XP, AMD64 Windows 2003 Server, and AMD64 Widows Vista. I am to use WDK 6000, the RTM build for Vista. I use nmake and set the environment as "fre AMD64 WNET". The resulting driver works fine in above AMD64 machines. Please first help me define the meaning of WLH and WNET. And then compare the differences between them. Thanks. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92888
  - 7
    - PCMCIA PCCARD Performance With a custom driver, my 16bit PCCARD shows poor performance. I'd like to know how can I increase the speed. The PCMCIA spec says that IO mode should reach 7.84MB/s, but I only see 0.18MB/s. The PcCard under development supports both IO and memory modes. With IO mode, each read is spaced 2 us apart. The actual read itself only takes 300ns, but there is a gap of no activity on the bus. I presume that this gap may be the result of the PCMCIA to PCI bridge that's involved. I have found that I can issue a READ_PORT_ULONG and get the bus to show two 16bit reads that are only ns apart. The next pair again comes only after a 1.7us wait. How can I have that kind of bus turnaround all the time? What can I do to reduce the time between reads? Is there a way to tune the PCMCIA driver? Are there a set of CIS tuples that would make a difference? The saddest part is the fact that on the same PC system, the Linux driver is able to go 5 to 6 times faster than the Windows driver. The main difference between the two is the way they setup and perhaps use the PCMCIA bridge. In either case, we want more performance. Any help would be greatly appreciated, Eric Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92886
  - 8
    - problem in creating a new process(intereactive) in session 1 from session 0 in Vista i tried to spawn an intereactive process from driver installation service in vista but the GUI was not shown on desktop. This is for Vista-32 only I used the following approach in my driver installer: 1) Got the duplicate token of the explorer.exe(which always runs in session 1) and made it primary. 2) Passed this to CreateProcessAsUser. 3) During installation from Found New Hardware Wizard.. I got the error "rundll32" host process has stopped working" and could not got the GUI on desktop. Is it possible to create a new process in session 1 from session 0 if Yes then Please tell me an alternative way to create a new process(intereactive) in session 1 from session 0 in Vista. Thanks and Regards, Ajay Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92885
  - 9
    - Is it a Bug for DTM in USB Digital TV Tuner Card Testing Hi everyone, I develop the driver for a USB Digital TV Tuner Card. I exactly followed the instruction of DTM to do the test on Vista. But after creating the submission, I found I am not "offered" the TV Tuner Test and the USB Test. But if I select "View By Driver" in Device Console and select my device in the list, the right tests disappear. Is this a bug for DTM? And anybody knows how to deal with this? I am appreciated to your reply. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92881
  - 10
    - Understanding Basics Hi All, I am basically an application developer and i am new to driver world. I am tasked to develop an application which talks to an API. This API will inturn talk to USB-Serial driver. I have the binaries of API and driver available with me. I have few questions which may be basics to everyone this group. I am excited to know the internals of what the API and driver does. 1) The application which i need to develop uses the API to talk to USB- Serial. I want to know to which end my application will initiate the calls. Is it the serial end or USB end? My assumption is my app will talk to serial end which inturn converts the serial requests to USB. 2) If the answer for above question is serial interface first, then I guess i need to configure the serial port settings i.e. baud rate etc.. and write some data to serial interface in my app. 3) How can i test the USB-serial data transfer? My assumption is at one end i use hyperterminal or similiar application and at other end i have an application which has handle to USB device and waits for the data. If the data matches it should be correct. These questions may sound pretty easier to all of you, but help me to understand the architecture. Thank You. Regards, Tim Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92879
  - 11
    - Problem in porting USBD_CreateConfigurationRequestEx to KMDF Hi, I have ported the USB part of NDIS-WDM driver from to KMDF. I am facing issue while porting the configuration select function. My device has 1 configuration and 1 Interface with 6 alternate settings so I call UsbPhyConfigureDevice routine for each of the AltSetting:- The NDIS-WDM piece of code is as under:- for (AltSetting = 0; AltSetting <= MAX_DOWN_RATE_TABLE_SIZE; AltSetting ++) { DataInterfaceDescriptor = USBD_ParseConfigurationDescriptorEx( ConfigurationDescriptor, ConfigurationDescriptor, USB_PHY_DATA_INTERFACE_INDEX, AltSetting, -1, -1, -1); if ( NULL == DataInterfaceDescriptor) { DBGPRINT( DBG_PRINT_MODULE_USB_ALL, DBG_PRINT_LEVEL_ERR, ("Device has no data class interfaces alternate setting %u \n",AltSetting)); return( STATUS_UNSUCCESSFUL); } InterfaceList[USB_PHY_DATA_INTERFACE_INDEX].InterfaceDescriptor = DataInterfaceDescriptor; UsbPhy->DataInterfaceOnAlternateSetting = AltSetting; // Configure the device NtStatus = UsbPhyConfigureDevice( UsbPhy, ConfigurationDescriptor, InterfaceList); } NTSTATUS UsbPhyConfigureDevice( PUSB_PHY UsbPhy, PUSB_CONFIGURATION_DESCRIPTOR ConfigurationDescriptor, PUSBD_INTERFACE_LIST_ENTRY InterfaceList ) { NTSTATUS NtStatus; PURB Urb; PUSBD_INTERFACE_INFORMATION DataInterface; DBGPRINT( DBG_PRINT_MODULE_USB_ALL, DBG_PRINT_LEVEL_TRACE, ("UsbPhyConfigureDevice\n")); ASSERT( UsbPhy); ASSERT( ConfigurationDescriptor); ASSERT( InterfaceList); // // Create the URB for the configuration request. Prior to submitting the // URB to USBD for processing, we can alter the default settings for each // interface as desired. // Urb = USBD_CreateConfigurationRequestEx( ConfigurationDescriptor, InterfaceList); if ( NULL == Urb ) { return( STATUS_INSUFFICIENT_RESOURCES); } /* ISO pipe requires user to indicate the maximum Transfer size. ** We are allocating 64k (0xFFFF) transfer size. ** This variable probably allocates memory in the host controller */ DataInterface = InterfaceList[USB_PHY_DATA_INTERFACE_INDEX].Interface; DataInterface->Pipes[0].MaximumTransferSize = 0xFFFF; // // Pass the configuration request to USBD with the default settings // NtStatus = UsbPhyCallUSBD( UsbPhy, Urb); if ( !NT_SUCCESS( NtStatus)) { DBGPRINT( DBG_PRINT_MODULE_USB_ALL, DBG_PRINT_LEVEL_ERR, ("Configure attempt failed\n")); FREE_MEMORY( Urb, sizeof(URB)); return( NtStatus); } DataInterface = InterfaceList[USB_PHY_DATA_INTERFACE_INDEX].Interface; // // Save the handle for this configuration as well as the interface // information needed when changing the device settings (i.e changing // the alternate setting for an interface) // UsbPhy->ConfigurationHandle = Urb->UrbSelectConfiguration.ConfigurationHandle; UsbPhy->DataInterfaceNumber = DataInterface->InterfaceNumber; return( STATUS_SUCCESS); } This Above piece of code is working fine. The ported function is:- pDeviceContext = GetWdfDeviceInfo(gFMiniportDevice); if(pDeviceContext == NULL) return NULL; UsbInterface = WdfUsbTargetDeviceGetInterface( pDeviceContext->Adapter.FUsbDevice, USB_PHY_DATA_INTERFACE_INDEX); for (AltSetting = 0; AltSetting <= MAX_DOWN_RATE_TABLE_SIZE; AltSetting++) { WdfUsbInterfaceGetDescriptor(UsbInterface, AltSetting, DataInterfaceDescriptor); if ( NULL == DataInterfaceDescriptor) { DBGPRINT( DBG_PRINT_MODULE_USB_ALL, DBG_PRINT_LEVEL_ERR, ("Device has no data class interfaces alternate setting %u \n",AltSetting)); return( STATUS_UNSUCCESSFUL); } // Configure the device NtStatus = UsbPhyConfigureDevice(UsbPhy, ConfigurationDescriptor, DataInterfaceDescriptor); } NTSTATUS UsbPhyConfigureDevice( PUSB_PHY UsbPhy, PUSB_CONFIGURATION_DESCRIPTOR ConfigurationDescriptor, PUSB_INTERFACE_DESCRIPTOR DataInterfaceDescriptor ) { NTSTATUS NtStatus; int i; WDF_OBJECT_ATTRIBUTES PipeAttrib; PWDF_DEVICE_INFO pDeviceContext = NULL; WDF_USB_DEVICE_SELECT_CONFIG_PARAMS configParams; PUSB_INTERFACE_DESCRIPTOR InterfaceDescriptors[MAX_NUM_OF_INTERFACES]; DBGPRINT( DBG_PRINT_MODULE_USB_ALL, DBG_PRINT_LEVEL_TRACE, ("UsbPhyConfigureDevice\n")); ASSERT( UsbPhy); ASSERT( ConfigurationDescriptor); ASSERT( DataInterfaceDescriptor); InterfaceDescriptors[0] = DataInterfaceDescriptor; pDeviceContext = GetWdfDeviceInfo(gFMiniportDevice); if(pDeviceContext == NULL) return NULL; WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_INTERFACES_DESCRIPTORS( &configParams, ConfigurationDescriptor, InterfaceDescriptors, MAX_NUM_OF_INTERFACES); WDF_OBJECT_ATTRIBUTES_INIT(&PipeAttrib); WDF_OBJECT_ATTRIBUTES_SET_CONTEXT_TYPE(&PipeAttrib, USB_PIPE_STRUCTURE); NtStatus = WdfUsbTargetDeviceSelectConfig(pDeviceContext- >Adapter.FUsbDevice, &PipeAttrib, &configParams); if (NT_SUCCESS(NtStatus)) { UsbPhy->NumberConfiguredPipes = WdfUsbInterfaceGetNumConfiguredPipes(UsbPhy->UsbInterface); } return( STATUS_SUCCESS); } WdfUsbTargetDeviceSelectConfig return NtStatus NT_SUCCESS but My device is coming as "Disabled" under network Connections. I am not even able to enable the device. Am I missing out something? Not even able to shutdown the device. Please help. I dont know how to set the default configuration while selecting the configuration. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92876
  - 12
    - Using Ndis WDM with a 32 bit microcontroller I got a microcontroller connected over a pci bridge to my pc. This controller got its own ethernet controller, 32 bit cpu and other peripherals like gpio. I want to use microcontrollers ethernet controller for my internet connection. For that purpose a small driver, running on the microcontroller, will sent me interrupts over pci and vice versa. Is it possible to use a Ndis WDM driver and modify it to make DMA transfers to controllers memory?(Pci bridge got a DMA channel) Or should i develop a WDM pci driver and use it with Ndis WDM driver? Did someone tried that before? How robust will be this model? Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92875
  - 13
    - NdisMEthIndicateReceive - porting to ndis 6.0 Hi, Please let me know if someone knows the mechanism of porting NdisMEthIndicateReceive fuinction to ndis 6.0. Theres no direct replacement; neither could i find the explained theory of indicating ethernet packet to ndis 6.0. Think it could be done with NdisMIndicateReceiveNetBufferLists. Pleae reconfirm.. Tanks of thanks! shweta Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92873
  - 14
    - Padding ethernet packet (net buffer list) with NdisRetreatNetBufferDataStart !? Hi, I m padding ethernet packet (= net buffer list) to make it 64B long. If I use NdisRetreatNetBufferDataStart then the data space allocated in net buffer list will be filled up with zeros? Please reconfirm.. Thanks a ton in advance! Shweta Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92871
  - 15
    - Evenafter IRR is set, the interrrupt service routine didn't execute Hi All, We have a board which has it's own 8253[PIT] and 8259[PIC]. The 8253 is configured to raise a timer interrupt on every 20ms and 8259 is configuered to fw that request to the device driver. In normal case, the things work fine, 8253 raises interrupt in every 20ms and driver interrupt service routine is executed. The problem happens if the application run for long time[ >1day], driver interrupt service routine is never called-up, eventhough the 8253 raises the timer interrupt. So I added some diagnostic code to dump the values of the 8253 and 8259 internal registers during failure cases. This shows that 8253 is counting and re-counting without any problem. IMR registers is not masking the timer interrupt, however IRR register shows that the bit which corresponds to the timer interrupt is already set, ISR register is not having that bit set. Based on this, I conclude that, 8253 raises the interrupt and IRR is set correctly, but 8259 is waiting for the CPU to sent the INTA, but it didn't happen, so it couldn't set ISR and fw the request to the driver. The question I have here is, What should be done to identify why the CPU didn't sent INTA? any other ideas? Thanks. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92870
  - 16
    - device driver upgrade problem Hi, I have a problem with upgrade. I have a package which includes updated .inf and .sys files. From log I see that files are copied to drvstore and installation/upgrade is done (fresh installation works fine) - but after that (in upgrade) difxapp finds another copy of the driver with same component ID and uninstalls it. Result is that when I try to do upgrade difxapp uninstalls my driver. The reason why it finds another copy of the driver is that in upgrade it copies files to different folder in drvstore than in fresh installation. Folder name includes a code or ID number (I'm not sure what code is it). So my question is ... should it behave like this ? why it copies files to different folder ? and what should I do to avoid this ? My driver is not signed (yet), I have mainly tested with XP (also win2000) and I'm using installshield 12 to make a package (but I dont think the problem is there ...). Any suggestions are welcome :) Jussir Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92869
  - 17
    - fail to write files in SystemRoot in Vista Hi, I have a driver that works well in WinXP. In this driver, device property page write some information in systemroot directory. (just like logging files). But in Vista, the property page fails to write because it has no authority, so some relative feature can't work. 1. I've tried to change the writing file to non-system directory, but I found that INF failed to use dirIDs failed. [DestinationDirs] CopyFiles.ProperPageLog = 53, VendorDir ;try to copy to user profile directory the 53 dirID works in winXP but no in Vista, I've tried "25 (Shared Directory)", "16427 (Program Files\Common)"...they all fail in Vista. 2. another question, if I copy the files in installation package, how to access this diretory in dirver (ex. "16427 Program Files\Common")? As far as know, the \\SystemRoot refer to "c:\windows", but can't access other directory. I think absolute directory like \\dosdevices\\c:\\ is bad idea. I'm not sure I'm in right way, please help me and thanks! Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92868
  - 18
    - peculiar observation with AMD64Bit and Intel Dual Core Machines, in Low Powered States Hi, I Have a peculiar observation with AMD64Bit and Intel Dual Core Machines in low Powered States. Operating System : WinXP SP2. 32 - Bit OS Machine : Intel PIV, Intel Chip Set With the above configuration machine, Go to low powered state, Disconnect the any USB device in the low powered state, ReConnect the USB device in the low powered state, and then come back from the low powered state. Under these conditions i get a if i try to access the device as soon as i am back from the low powered state i get a STATUS_DEVICE_NOT_CONNECTED status and then the driver unloads and reloads and works fine. But the same procedure if i follow with the following machine, Operating System : WinXP SP2. 32 - Bit OS Machine : Either Intel Core Duo or AMD 64 i do not get a STATUS_DEVICE_NOT_CONNECTED instead i get a STATUS_SUCCESS and device functions properly. Why is this happening ??? Thanks and Regards, Neo Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92867
  - 19
    - Padding ethernet packet (net buffer list) with NdisRetreatNetBufferDataStart !? Hi, I m padding ethernet packet (= net buffer list) to make it 64B long. If I use NdisRetreatNetBufferDataStart then the data space allocated in net buffer list will be filled up with zeros? Please reconfirm.. Thanks a ton in advance! Shweta Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92866
  - 20
    - Evenafter IRR bit is set there is no Interrupt service routine execution... We have a board which has it's own 8253[PIT] and 8259 [PIC]. The 8253 is configued to raise an interrupt in every 20ms. Everything works fine, However in long run the driver stopped to get the timer interrupt. So I added some diagnostics code which dumps the internal registers of 8253 and 8259 during the failure case. This log shows that the 8253 is counting correctly. The IMR is not masking the timer interrupt and the bit corresponds to the timer interrupt is set in the IRR. The timer interrupt bit is not set in the ISR register. So conclusion I made here is that, 8253 raised on timer interrupt and corresponding bit in IRR is set and it's waiting for the CPU to sent the INTA, however the CPU is not acknowledging, so driver interruptServiceRoutine is not called-up. Question I have here is, What should be done to identify why the CPU didn't send INTA? What should be done to identify why the InterruptServiceRoutine is not called-up? Thanks. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92864
  - 21
    - problem about 2 Notification Events Dear all: I create 2 event objs, one in Application and the other in Driver.I ues them to notify each other. 1) the App create a new thread to wait for the event Driver will set 2)Driver sets the event that the thread waits for, then Driver turns to wait for the other event <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< In Application : <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< unsigned ThreadId; DWORD BytesReturned; // to get the Device handle // hDevice=CreateFile(MY_DEVICE_NAME,GENERIC_READ | GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL); // //create an event // hShareE = CreateEvent(NULL,TRUE,FALSE,NULL); // //send a IRQ to driver with the event handle // DeviceIoControl(hDevice,SHARE_EVENT_CRT,&hShareE,4,NULL,0,&BytesReturned,NULL); // //create a new thread // _beginthreadex(NULL,0,&ppppp,(void*)hShareE,0,&ThreadId); <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< In a new thread: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< unsigned __stdcall ppppp(void*(hShareE)) { while(1) { //wait // WaitForSingleObject((HANDLE) hShareE,INFINITE); // //notify user // ::MessageBox(NULL,"Event Set!",NULL,MB_OK); ResetEvent((HANDLE) hShareE); } _endthreadex(0); return 0; } <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< In Driver: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< //event name ,handle, pointer // WCHAR wEventNameBuf[]=L"\\BaseNamedObjects\\SharedEvent"; UNICODE_STRING uEventName; PKEVENT pEventApp,pEventDrv; HANDLE hEventDrv,hEventApp; // //mutex // KMUTEX H_FuncMutex; //IRQ about creating event // case SHARE_EVENT_CRT: RtlCopyMemory(&hEventApp,pIrp->AssociatedIrp.SystemBuffer,4); // //get the pointer from handle of event that the App created // ObReferenceObjectByHandle(hEventApp,EVENT_MODIFY_STATE,*ExEventObjectType,pIrp->RequestorMode,(PVOID*) &pEventApp,NULL); //driver creates the other event // RtlInitUnicodeString(&uEventName,wEventNameBuf); pEventDrv = IoCreateNotificationEvent(&uEventName,&hEventDrv); if(pEventDrv != NULL) KeClearEvent(pEventDrv); break; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< A hook func in Driver: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< //get in Critical section // KeWaitForMutexObject(&H_FuncMutex,Executive,KernelMode,FALSE,NULL); // //set the event to notify the new thread // KeSetEvent(pEventApp, IO_NO_INCREMENT, TRUE); //wait for the other event // KeWaitForSingleObject((PKEVENT)pEventDrv,Executive,UserMode,0,0); KeClearEvent(pEventDrv); //get out Critical section // KeReleaseMutex(&H_FuncMutex,FALSE); In the hook func, KeSetEvent is successful, but the thread is not active. and, if i delete the followings: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< //wait for the other event // KeWaitForSingleObject((PKEVENT)pEventDrv,Executive,UserMode,0,0); KeClearEvent(pEventDrv); <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< the thread will be active. somebody know what happen, and how to solve it. Thank you!! Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92856
  - 22
    - re:Cant_find_a_driver_this_site_will_Ask_MDREPAIRS Cant_find_a_driver_this_site_will_Email_Mark http://www.mdrepairs.com Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92854
  - 23
    - re:Cant_find_a_driver_this_site_will_Ask_MDREPAIRS Cant_find_a_driver_this_site_will_Email_Mark http://www.mdrepairs.com Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92853
  - 24
    - How to get ShutdownType and SystemState in kmdf driver? WDM power management irp provides ShutdownType and SystemState information. But the kmdf power management callback functions EvtDeviceArmWakeFromSx and EvtDeviceDisarmWakeFromSx don't have these information. How can the kmdf driver power management functions get these information from kmdf if it need these information? -- johnzchen Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92852
  - 25
    - How to track window changes ? Hi, I need to have a user application receive some notification whenever it's visibility changes. For example, I need to know when the window becomes partially or completely covered up, when something that had obscured part of the window is removed making more of the window visible, or when the window is destroyed, etc. I'm using windows XP / XP embedded. I am also writing a KMDF driver for a device that is display-related, but I am not writing, nor can I modify the display driver itself. Here is the original approach: The user app could pass the window handle to the driver. The driver could call EngCreateWnd, and specify a WNDOBJCHANGEPROC callback that would get invoked when GDI changes the window visibility. The driver could pass a list of visible rectangles back to the user app. The problem with this approach is that I don't have access to any of the SURFOBJ information that is needed by the EngCreateWnd call to create the window object. I have also considered the method identified in "Tracking Window Changes" http://msdn2.microsoft.com/en-us/library/ms797870.aspx but the application's ExtEscape call needs a device context. From what I can tell, this "Device Context" is different from a device context which I define for my device. That makes me think that the DrvEscape will be invoked in the display driver, not my driver. Does anyone know how a driver can get the needed information to do this ? Or better yet, is there possibly something we are missing in the user mode interface that can notify an application when when window visibility changes? (This would be more that just a Paint Event) Thanks in advance, Jay Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92850
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  - 1
    - DTM: INFTest failure Hi All, I'm trying to complete "Driver Reliability" tests on the driver using DTM on Vista x86. And every time I got INFTest failure with the log like following: === Inftest is running ... Command line: "C:\WTT\JobsWorkingDir\Tasks\WTTJobRun46B67F2B-7841-4AA6-829D-685B8C0D7C91\i386\inftest.exe" -wdk -p C:\WTT\JobsWorkingDir\Tasks\WTTJobRun46B67F2B-7841-4AA6-829D-685B8C0D7C91 -f /LG -l C:\Windows\inf\ Current directory : C:\WTT\JobsWorkingDir\Tasks\WTTJobRun46B67F2B-7841-4AA6-829D-685B8C0D7C91 Passing extra flags to Chkinf: /LG FindPerl : ChkinfPath = C:\WTT\JobsWorkingDir\Tasks\WTTJobRun46B67F2B-7841-4AA6-829D-685B8C0D7C91 FindPerl : perl.exe found on the system! Setting chkinf directory as : C:\WTT\JobsWorkingDir\Tasks\WTTJobRun46B67F2B-7841-4AA6-829D-685B8C0D7C91\chkinf.bat Processing command line ... Find First File operation failed! Bailing out ... Could not find user specified INF files. Bailing out ...Could not expand user supplied lists of infs into individual filenames. Running InfTest : Could not expand user supplied list of infs. Clearing list of infs ... Processing command line ... DONE! The inftest check failed to run. Please check the debug logs for more information. === Also, I cannot find any ways to contact DTM support team directly. Any help very appreciated! Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92844
  - 2
    - Removal of Protocol driver with Device Driver Is there an approved method for a driver to request the removal of a proprietary network protocol which is installed with the driver? The reason I ask is that I wish to change the interface name the protocol uses, and while the protocol gets installed with the driver, it does not appear to get uninstalled with the driver. When an updated driver is later installed, the protocol associated with it does not appear to get installed because the old protocol from the previous driver is still resident. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92829
  - 3
    - Driver unInstallation problem on Vista/XP - 64 bit Hi List, Basically I have a echo driver with the property (start type = 1). I am using DIFx API to install and unInstall this driver. Installation seems to go through fine. after this, for loading the echo driver, I reboot the system and drivers get loaded. Now if I try Un-Installing the drivers, it fails to do so. When I see the detailed log, it says "Trying to unload the driver", "retrying to unload the driver" and finally it gives up saying "you need to reboot the system". However as per the requirement I should be able to install and uninstall the drivers without reboot. My question is what may be the reason for this failure? Also Is there a way to tell DIFx API not to try unloading the driver; but simply uninstall them. Any pointers would be of great help. TIA Regards Jatin Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92825
  - 4
    - Error No 800B0101 While Using DifXApi.dll Hi, I have been trying to install a particular device driver using difxapi.dll on vista32 platform. Although i am able to load the dll but when i call the "DriverPackageInstallA" with the path of the inf file and other parameters, i am getting an error message 0x800B0101. I looked out for this error and found out that it means "A required certificate is not within its validity period.". But i am unable to understand how it relates to my module. Can anyone please tell me where the problem could be? Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92824
  - 5
    - problem about 802.11 miniport driver indicating NDIS_STATUS_DOT11_CONNECTION_COMPLETION I have a 802.11 miniport driver for Vista, and my user mode app use a private OID to transfer all the other OIDs(such as OID_DOT11_RESET_REQUST) to the miniport driver, to query or set. Then the app send OID to the miniport "bypass" the nwifi IM driver. For some reason I must use a app to control my miniport instead of ACM. The problem is: I use my app to make the driver connect a AP, the miniport driver connect the AP and indicate NDIS_STATUS_DOT11_CONNECTION_COMPLETION as well as NDIS_STATUS_DOT11_ASSOCIATION_COMPLETION(I can see it by dbgview, auth and assoc is OK), but if I use ipconfig, it show that the media is disconnect. But I use the Vista's ACM to connect the AP with same miniport driver, and the driver also indicate the NDIS_STATUS_XXX, ipconfig show that media is connected. Why? Do the nwifi IM driver need some else information to decide the media state? Because of "bypass" the IM driver? I tried to send OID directly to IM, but some OIDs failed, such as OID_DOT11_RESET_REQUST. It seems that the IM driver do NOT allow some OIDs to get to miniport. Thanks for your help! -- Arthur Tu best regards Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92822
  - 6
    - Kernel Mode Encryption API's : Help Needed. I want to do kernel mode AES encryption beacuse i am developing a encryption filter driver. Is there any k-mode library available for the same? Plz Help. Regards, Aman. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92821
  - 7
    - Porting of TransferDataHandler function to ndis 6.0 Hi, I have this doubt regarding porting TransferDataHandler function that was previously getting registered to ndis 5.1 through NDIS_MINIPORT_CHARACTERISTICS -> TransferDataHandler. i just want to reconfirm if in NDIS 6.0, its getting registered through NDIS_MINIPORT_DRIVER_CHARACTERISTICS->MiniportOidRequest- >NDIS_OID_REQUEST->RequestType= NdisRequestTransferData . DDK says that this request type is redundant. Thanks a ton in advance! shweta Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92820
  - 8
    - update: WDK 6000 build.exe dependency issue I reported this issue to the NDIS team during our weekly call with MSFT. Now I got an ACK that the WDK team is able to reproduced in Redmond. It's being taken care of. -- Calvin Guan (expiring DDK MVP) Sr. Staff Engineer NetXtreme NTX Miniport Broadcom Corporation Connecting Everything(r) Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92796
  - 9
    - FilterAttach gives 0x80070032, different results on different computers, same code given usermode program tester.exe and kernel minifilter tester.sys and tester.inf, and cleaning out all tester.* from c:\winnt\*, and removing all pertinant "tester" fom the registery, using the same compiled code on two machines, I install the usermode program (which is a service) and the driver with: sc create testerService binpath= c:\tester\tester.exe rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\tester \tester.inf sc queryex testerService sc queryex testerDriver and both are loaded. Everything else I can think of being equal, upon starting the service, one machine calls FilterAttach() successfully and one machine receives 0x80070032 from FilterAttach() !!! What to do!? it appears that the returned hr is encoding ERROR_NOT_SUPPORTED, so what to do! I can find ZERO documentation on this behavior short of my previous and somewhat related post. the difference being that this error is being received not on a single attempted FilterAttach(). Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92795
  - 10
    - FilterAttach gives 0x80070032, different results on different computers, same code given usermode program tester.exe and kernel minifilter tester.sys and tester.inf, and cleaning out all tester.* from c:\winnt\*, and removing all pertinant "tester" fom the registery, using the same compiled code on two machines, I install the usermode program (which is a service) and the driver with: sc create testerService binpath= c:\tester\tester.exe rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\tester \tester.inf sc queryex testerService sc queryex testerDriver and both are loaded. Everything else I can think of being equal, upon starting the service, one machine calls FilterAttach() successfully and one machine receives 0x80070032 from FilterAttach() !!! What to do!? it appears that the returned hr is encoding ERROR_NOT_SUPPORTED, so what to do! I can find ZERO documentation on this behavior short of my previous and somewhat related post. the difference being that this error is being received not on a single attempted FilterAttach(). Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92794
  - 11
    - FilterAttach gives 0x80070032, different results on different computers, same code given usermode program tester.exe and kernel minifilter tester.sys and tester.inf, and cleaning out all tester.* from c:\winnt\*, and removing all pertinant "tester" fom the registery, using the same compiled code on two machines, I install the usermode program (which is a service) and the driver with: sc create testerService binpath= c:\tester\tester.exe rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\tester \tester.inf sc queryex testerService sc queryex testerDriver and both are loaded. Everything else I can think of being equal, upon starting the service, one machine calls FilterAttach() successfully and one machine receives 0x80070032 from FilterAttach() !!! What to do!? it appears that the returned hr is encoding ERROR_NOT_SUPPORTED, so what to do! I can find ZERO documentation on this behavior short of my previous and somewhat related post. the difference being that this error is being received not on a single attempted FilterAttach(). Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92793
  - 12
    - DriverEntry return question After my driver is installed, it has discovered at DriverEntry time that the registry has not been set up correctly, it returns STATUS_REGISTRY_CORRUPT and the XP Home Sp2 system crashes.... bummer. What should be returned from a driver if the driver cannot initialize and wants to be taken out of the game? -- Gak - Finecats Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92790
  - 13
    - Error Handling In Port Monitor Is it appropriate to pause or cancel print jobs under error conditions (via SetJob) from a Port Monitor or Language Monitor rather than just return a null to the Spooler for StartDocPort / WritePort / EndDocPort? Is there a specification of what the spooler expects the PM / LM to do under error conditions? Thanks for your help! Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92789
  - 14
    - Protocol Removal Is there an approved method for a driver to request the removal of a proprietary network protocol which is installed with the driver? The reason I ask is that I wish to change the interface name the protocol uses, and while the protocol gets installed with the driver, it does not appear to get uninstalled with the driver. When an updated driver is later installed, the protocol associated with it does not appear to get installed because the old protocol from the previous driver is still resident. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92781
  - 15
    - Will DMA transfer diable the CPU completely as if it has been revoved from the socket? Below is my understanding, but I am not sure of its validity. I hope to get some comments from you. Provided that a program want to start a DMA transfer. 1, CPU sends a start command to a DMAC (DMA Controller); 2, The DMAC signals the CPU through the HOLD pin and waits for the CPU's acknowledgement; 3, CPU signals the DMAC through the HLDA pin; 4, Upon receiving HLDA, the DMAC starts to DMA transfer. From now on, the CPU stops all its activities. Until the DMA process is finished, all the interrupts can not get responses. But, the CPU's internal status are kept, and all the interrupts' status are also kept. 5, Upon finishing the DMA transfer, the DMAC deactivate the HOLD pin, the CPU continues to execute its instructions. My question is the same as the title: Will DMA transfer diable the CPU completely as if it has been revoved from the socket? Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92779
  - 16
    - HID minidriver with multiple report descriptors Hi, I write a HID minidriver with standard Mouse and Keyboard report descriptors. It is based on vhidmini in Windows Server 2003 DDK. The driver work fine and I can read/write the report from the device. The Device Manager shows it is HID-compliant device in HID class, but the Mouse Class and Keyboard Class have none. How should I do so that it can be a mouse device and keyboard device? Should I modify the INF file? My driver's INF is almost same as the vhidmini's. Thanks Ron Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92769
  - 17
    - page fault when KeResetEvent runs. dear all! I use share event in communication between app and driver. the follows are my source codes : void ppppp(PVOID event) { KeWaitForSingleObject((PKEVENT)event,Executive,UserMode,0,0); //......wait for the event...... } ...... WCHAR wEventNameBuf[]=L\"\\\\BaseNamedObjects\\\\SharedEvent\"; UNICODE_STRING uEventName; PKEVENT pEvent; HANDLE hEvent,hThread; ...... case IOCTL_******: RtlInitUnicodeString(&uEventName,wEventNameBuf); pEvent = IoCreateNotificationEvent(&uEventName,&hEvent); KeResetEvent(pEvent); RtlCopyMemory(Irp->AssociatedIrp.SystemBuffer,&hEvent,4); PsCreateSystemThread(&hThread,THREAD_ALL_ACCESS,0,0,0,ppppp,pEvent); In Applicationï¼? if(!DeviceIoControl(hDevice,IOCTL_******,0,0,&Handle,4,&Bytes,0)) MessageBox(\"DeviceIo Error!\"); esle{ wsprintf(str,\"%x,%x,%x\",hDevice,Bytes,Handle); MessageBox(str); if(!SetEvent((HANDLE)Handle)) ...... } but when it runs in KeResetEvent and KeWaitForSingleObject , a reg points to 0,then page faults. somebody know what happen, and how to solve it. Thank you!! Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92768
  - 18
    - IM(passthru) installation Hi All After install the IM driver , appear the "passthru driver" in "Network Properties" menu. then anyone can remove it easly. How to install the IM driver whitout appear "passthru driver" in Netwrok properties menu? Thanks. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92765
  - 19
    - Difxapp error list I've got a Difxapp error message in the log of my MSIEXEC output. My drivers and registry settings that are in the INF are not getting set correctly. I've got a 0x424 error (somebody must know what this means), but I don't know where to find this information? -- Gak - Finecats Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92758
  - 20
    - cancel-safe queues and Cleanup Assume a driver working with the same logic as the DDK Cancel sample implements. Suppose that one routine just removed a pending irp from the queue and then the Cleanup dispatch is called. Because the irp is not in the queue anymore, Cleanup won't find it and the irp won't be cancelled. In most cases this won't be a problem, the irp will be completed soon enough. But in some devices it is possible that the irp can't be completed for some reason. Then the irp would keep pending, possibly inserted again in the cancel-safe queue. In extreme cases the irp might be never completed, and it won't ever be cancelled either. Am I missing something, or do I need to take special care if irps removed from the queue might be not possible to complete? Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92751
  - 21
    - Propagating the Pending Bit "Any time a driver handling an I/O request returns the response of the next-lower driver, the value of the pending bit in its I/O stack location (SL_PENDING_RETURNED in the Control field of the IO_STACK_LOCATION structure) must be the same as that of the next-lower driver. " ...of course they are the same! "If the driver does not set an IoCompletion routine, the I/O Manager automatically propagates the value of the bit, freeing the driver of this responsibility. However, if the driver sets an IoCompletion routine, and the next-lower driver returns STATUS_PENDING, the current driver must mark its own I/O stack location as pending. " if the driver sets an IoCompletion routine, means it has sth need to cleanup before the irp is released, it is reasonalbe bcz device stack is a nesting arch. pls correct me. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92742
  - 22
    - ddkbuild.bat Vista DDK (6000) and making brower files (currently NOT) I searched for ddkbuild and DDK so I did my due diligence. We are upgrading from OSR DDKBUILD.BAT V5.1 to OSR DDKBUILD.BAT V6.10 and more importantly from DDK2600 to DDK6000. Yes I know, I know it was last released in 2002! The project is an XP NDIS 5.1 miniport driver. Now I am trying to coax a (*.bsc) file out of this and having no joy. The 6000 DDK says that I can not define: BROWSER_INFO=1 BROWSERFILE=drivername.bsc anymore. I saw some discussion from Mark Roddy about <ddkroot>\bin\verify.src and defining USER_ENV_BROWSER_INFO=1 to turn the error off but that still does not get me my drivername.bsc (no joy) It was in http://www.techreplies.com/drivers-43/visual-studio-net-driver-wizard-339156/ Does anyone know the magic invocations required to get a browse file. We really like using ddkbuild.bat and VS6 to manage the development environment. Thanks -Ron- Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92740
  - 23
    - Calling CreateFile / DeviceIOControl from a limited user account I need to be able to open a handle to a driver and communicate with it via IOCTLs. This needs to be done from a limited user account on Windows XP Pro SP2. I have a solution working when running from an administrator account but I can't get it to work from the limited user account and I cannot find any security settings the allow access. Is there a security setting of some sort that I can set to allow this functionality? Thank you. -- Matthew Townsend General Dynamics Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92737
  - 24
    - PsCreateSystemThread on Win2k The DDK states that PsCreateSystemThread under Win2K must be called from the system process context only. However checking older DDK versions and older samples seem to condtradict that statement. This suggest that it can, but it shouldn't perhaps because it exposes a bug or a security hole in Win2k. So the question is if it is still possible to call PsCreateSystemThread from an abritrary process context, perhaps taking special precautions. Yeah, I know that I can schedule a work item to create the system thread. But this creates an overly sinchronization complication between the dispatch routines, the work item and the system thread. Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92726
  - 25
    - Tracking Info in 3 Documents At Once Hello All I have a question regarding trying to have 3 seperate documents, where when you make a change in one, the other two automatically get updated. I know there is a function in Excel that perfroms this task; however, it only allows one person to work on the document at one time. I need to be able to have this function that allows multiple team members to update one document where the other two are automatically updated as well. Do you know of any applications or databases where I can set this up? I would appreciate any feedback. -- Thanks a lot, Ilona -- Thanks a lot, Ilona Tag: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? Tag: 92724

Hello,

DDK says the we can use PoRequestPowerIrp to allocate a Power IRP send
to the top of the driver stack when power policy owner receivce a system
set-power IRP. Now, in my design, I need to duplicate the Device set-power
IRP and send them to different device object below my driver. Is it the only
way to allocate a Power IRP using PoRequestPowerIrp?

Thanks.
God will bless you and your family!
Wayne Gong
gong_weying@yahoo.com.cn

Top

Re: Is it the only way to allocate a Power IRP using PoRequestPowerIrp? by Calvin

Calvin
Wed Mar 21 23:25:29 CDT 2007

What do you mean by "different device object below your driver"? Is it in
the same pnp stack?

--
Calvin Guan (expiring DDK MVP)
Sr. Staff Engineer
NetXtreme NTX Miniport
Broadcom Corporation
Connecting Everything(r)

"Wayne Gong" <wayne.gong@hotmail.com> wrote in message
news:eJHlffhZHHA.4832@TK2MSFTNGP02.phx.gbl...
> Hello,
>
> DDK says the we can use PoRequestPowerIrp to allocate a Power IRP send
> to the top of the driver stack when power policy owner receivce a system
> set-power IRP. Now, in my design, I need to duplicate the Device set-power
> IRP and send them to different device object below my driver. Is it the
> only way to allocate a Power IRP using PoRequestPowerIrp?
>
> Thanks.
> God will bless you and your family!
> Wayne Gong
> gong_weying@yahoo.com.cn
>

Top