Which miniport created \Device\HardDisk%d?

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  - 1
    - Cache Coherency In an earlier post[1], Stephan Wolf says "On x86, there is no need to take care of any caching issues at all because x86 always guarantees cache coherency." I may be taking him too literally, but I don't see how that can be true. I've got a PCI adapter using a PLX 9030 that presents a 1K memory buffer at PCI BAR4 which is marked as cacheable to the OS. This is mapped in at DriverLoad using MmMapIoSpace() with MmCached. Once the OS is done transferring data out of the buffer, the buffer is released back to the adapter to refill with incoming data. When the memory is done refilling, the adapter hands ownership of the memory back to the OS and an interrupt is asserted. The problem I'm trying to address is how to ensure the CPU reloads its internal cache with the new data since I can see no way that it can be aware of the changes. The PLX 9030 is a target only device, so it can't master a special cycle on to the system bus. And I didn't see any way the CPU could snoop the memory for changes. The natural (and documented) way to keep the cache coherent is to call KeFlushIoBuffers() in the IRQ DPC before reading the buffer. But, as Stephan mentions, and as I've confirmed, this is completely macrolized away for x86 builds. It doesn't do anything. I haven't seen any HAL'd abstractions in the MmXxx() or KeXxx() routines that invalidate specific cache lines, so I think I'm being forced to get a little closer to the metal. It looks like the right thing to do would be to issue an CLFLUSH[2] op sandwiched between two MFENCE ops. But, that's pretty brute force, and I'm not sure these are supported by AMD. At least I couldn't find a definitive reference. If they definitely are, or if there's a different way to flush a cache line on AMD, let me know. Of course, WBINVD will work, but that flushes the whole cache to system memory, and all I need to make coherent is a tiny chunk that's <1K. Mighty inefficient. Another alternative would be to issue an INVLPG, but that seems to get all over the Memory Manager's business. If this were the right way, it would probably be better to MmUnmapIoSpace() and then re-map them. <gack> Hopefully this wasn't too newb. I've looked around the net and here for answer, so fire away! -Mark [1] http://groups.google.com/group/microsoft.public.development.device.drivers/browse_frm/thread/7b6104ea25dfcebb/351bc138b87e61b1?q=cache+flush&rnum=4#351bc138b87e61b1 [2] Sure wish there was a MmFlushCache(base, size, read_not_write) call. Wait! There's KeFlushIoBuffers() now. :-/ Tag: Which miniport created \Device\HardDisk%d? Tag: 81778
  - 2
    - Two filters in one AVStream driver Hello, All. I'm working on AVStream minidriver. And I want to create minidriver that will provides DirectShow filter to the user mode application all time while device is connected to the system and another one filter type that will be seen by system only then my device is switched in special state (looking at hardware state). And another one requirement is that these filers have different category (I mean category like "Video Capture source"). In AVStream documentation I have found two ways to implement additional filter type from same device. The first one is to implement two filter factories in one minidriver and to create filters of each type separately from driver. Does system notifies appications about new filters arrival in this case? Does there is possibility to point system that these filters have different categories (capture and decode, for example). The second way is to create AVStream child device. But it is not clear for me what driver will serves this child device. Please help me to clear these questions. Andrey Tag: Which miniport created \Device\HardDisk%d? Tag: 81772
  - 3
    - Video-Capture Card Device Driver ?? 1. I want to write a device driver for a PCI video-capture card And in ddk docs related topics are : Kernel-Streming AVStream Minidrivers Streaming Minidrivers Audio Drivers Video Capture Drivers USB Camera Drivers DVD Minidrivers Broadcast Driver Architecture Drivers AV/C Client Drivers in WHDC pages it says , KS is a former model of AVStream vs. vs.. But KS is still in ddk docs For the moment , can you guide me about my video-capture-driver challenge , KS or AVS ? What about selecting framework -> streaming-mini, filter-centric or pin-centric ?? And also what about AV/C Client drivers , do i need to write it ?? (Other resources will make me very happy , if available for streaming... ) 2. DDK Docs say : "Audio/Video streaming (AVStream) client minidrivers (Microsoft® DirectX® 8.0, Microsoft® Windows® XP and later versions of the operating system) are typically written in C++. " Why typically C++ ? Is it a must or an advice for good coding or anything related with DirectX ? 3. What about needed minimum hardware knowledge for this project , what must i know about my video-capture card to write it's driver ? /* If anyone could provide any suggestions or insight, I'd be very appreciative. */ Tag: Which miniport created \Device\HardDisk%d? Tag: 81770
  - 4
    - Access to the I2C_CALLBACKS data in a video miniport Is there a way for a display driver to access the subject structure in a video miniport? Tag: Which miniport created \Device\HardDisk%d? Tag: 81768
  - 5
    - NdisMIndicateStatus max buffer Hi, Does any one know if there is any limitation on the buffer size given to NdisMIndicateStatus? Thanks Miki Tag: Which miniport created \Device\HardDisk%d? Tag: 81767
  - 6
    - What am I doing when I read/write to LPT1 ? I am just curious, but what am I actually doing when I CreateFile to LPT1, is there a protocol which explains this? Tag: Which miniport created \Device\HardDisk%d? Tag: 81765
  - 7
    - WinXP SDIO INF While making sdio inf file what has to be reffered to the Class ,class GUID directive of version section I have doubt bcos the in the devguid.h file of include folder (along with ddk) there is not any section for SD or SDIO Do I need to use Unknown section I need some idea on making an Insataller application for my SDIO. I also need an sample sdio inf file Tag: Which miniport created \Device\HardDisk%d? Tag: 81763
  - 8
    - Hiding device entry Hi all I want to hide my device entry under device manager in Windows XP . I came across a post which said when we set the DEVNODE status flag to DN_NO_SHOW_IN_DM we can acheive this. But the configuration manager part has API calls only to get the status of the devnode. Does anyone know how to set this flag. Is there any other means to hide device entry. My driver is not a filter driver. Mk Tag: Which miniport created \Device\HardDisk%d? Tag: 81762
  - 9
    - how to use DbgView hi all, i try install TestCap Example in DDK into my syatem and use DbgView to see output debug message, but i can not, anybody help me how to use DbgView to see debug message? Thanks, David, Tag: Which miniport created \Device\HardDisk%d? Tag: 81760
  - 10
    - Stop Service Experts! I have a device conected to my computer with a USB, i want to stop this device and then start it again. i selected disable in the device manager and the device was disable successfully. But when i tried to do it programmaticatly it failed. I tried calling "net stop service_name_blabla" from the command line. and i tried using SERVICE_CONTROL_STOP,in ControlService but they both failed, reason: "The requested control is not valid for this service. " error how can i disable the service with C++ like i'm doing well in the device manager ? thanks. Tag: Which miniport created \Device\HardDisk%d? Tag: 81759
  - 11
    - Get Device Descriptor from User Mode hello all, I am facing a problem, how to det the device descriptor of USB device from User Mode, I just know VID n PID of the device. It could be great if a piece of code is availble. thanks sachin Tag: Which miniport created \Device\HardDisk%d? Tag: 81758
  - 12
    - Setting DefaultInputSlot in a PPD? Hello all, I build print drivers with the PostScript OEM customization tools, and I'm stuck on some driver/PPD interaction. The second tab in DocumentProperties is normally Paper/Quality, with two drop downs for Paper Source and Media. These are populated from the PPD via InputSlot and MediaType sections. The problem is that the PPD parser (or some other component) does not honor the DefaultInputSlot and DefaultMediaType directives, and it does its own thing. I'm using the German version, and the phrase "Automatisch Auswahlen" ("Automatically Select") is filled in for us. This phrase does not appear in the PPD, but does appear in PS5UI.DLL's resource section. This all means that we're not able to set a reasonable default, and this is causing us some real problems for a customer implementation. If we change the default in the UI, it "sticks", but we don't have portable access to the DEVMODE to muck with it ourselves. Looking in the MSDN docs: http://msdn.microsoft.com/library/en-us/print_d/hh/Print_d/pscript_34563439-cd1f-4418-b51d-a3250e35df28.xml.asp It seems clear that InputSlot is being handled specially, and it suggests to me that DefaultInputSlot is simply ignored entirely. Looking at the IPrintOemDriverPS::DrvGetDriverSetting helper function, it seems that I'm able to *fetch* values, and IPrintCorePS2 lets me enumerate them, but I think I cannot find any mechanism to *set* these options. Is there any way I can set a default value for this field when the driver is installed without requiring the user to click a box after install? Thanks all, Steve -- Steve Friedl / UNIX Wizard / Microsoft MVP / www.unixwiz.net Tag: Which miniport created \Device\HardDisk%d? Tag: 81755
  - 13
    - SDIO multi-block write support (WinXP SP2)? I'm developmenting a SDIO WLAN client driver in WinXP SP2. When I use SdBusSubmitRequest() to send a CMD53 with multi-block. The "Byte/Block count" field in CMD53 will be overwrite with the length of the MDL (when < 64 bytes) or 64 bytes (when > 64 bytes). Does SDBus support SDIO multi-block mode? If yes, how to program it? Tag: Which miniport created \Device\HardDisk%d? Tag: 81753
  - 14
    - I2C slave device address Hi all, I am in a very strange situation for the I2C bus slave device address manipulation. Basically I have some slave devices which I communicate over the I2C bus. They work fine on different machines with Intel motherboard. The problem arises when I connect a specific slave device to the Intel 82865G machine. The address I am sending over the I2C bus for the slave device is not acknowledged by the device. The same address is acknowledged by the device on another intel machine. According to the I2C specs, the slave device is supposed to send the acknowledgement when Master finsishes sending the Bits of the address byte by pulling the SDA line low. But in this case the slave device is not pulling the SDA data line low. I have tried many cases.. like increasing the delay between the SCL , SDA check, checking the video memory, assigning the different address. But nothing is working. I am not sure whats the difference between I2C bus on one motherboard and that of another. Both are Intel 82865G. I communicate with the I2C in a driver for a graphics cards and for Intel I directly get the Video memory, convert it to the Physical memory and write to the DDC registers. I am able to send the Start condition on the I2C bus , but when I send the address of the Slave device , its not acknowledging. Other slave devices of Same type work fine. It will be very helpfull If somebody can tell me whats going on over the I2C bus for this. Thanks. -- Abhijit. Tag: Which miniport created \Device\HardDisk%d? Tag: 81752
  - 15
    - How long does it take to read a usb report? I am trying to check what is the maximum speed for read/writes of my pic 18f4550 usb device. It is a full speed device and an 8 byte length report, and I am using ReadFile and WriteFile. My results are that I get about 100 read write cycles in one second. Is that a normal speed for 8 byte reports? It seems quite slow ? My C loop is tight, and my device is a loopback device, i.e. it simply copies the input to the output? Tag: Which miniport created \Device\HardDisk%d? Tag: 81729
  - 16
    - sscanf Have been searching around without succes on this: Is there a recommended or 'standard' alternative to swscanf for use in a driver? (I'm wanting to parse a WSTR from the registry). Tag: Which miniport created \Device\HardDisk%d? Tag: 81727
  - 17
    - Driver design interogation... Hi, I am new on driver development so my question may be stupid for guru ^_^... My driver is base on passthru NDIS from DDK, I try to develop an IP filter and HTTP-DNS content filter. I want to use SQLite to store a big list of ip and rules. I want to put this code on a service. My design question is : - Is this solution is correct ( speed, complexity,... ). - How my driver can communicate with the db service. I see some info on WMI, but I have some interrogation on performance. Thanks for your help, A++ Tag: Which miniport created \Device\HardDisk%d? Tag: 81726
  - 18
    - Ndisprot problem with Intel Pro/Wireless 3945ABG Hi, I have developped an application able to control the laptop wifi adapter by setting and querying the oids OID_802_11 via the Ndisprot provided in Windows DDK 3790. This application works perfectly with the chipset Intel Pro/Wireless 2200BG and Intel Pro/Wireless 2100 and many other chipsets. The problem is that when I try to use it with the chipset Intel Pro/Wireless 3945ABG the oid OID_802_11_SSID does not work. The connection is simply not established and the IP is not retrieved. All the others oids works fine. Did you have any idea about it? Is it a known bug? Did you ever try the Ndisprot with Intel Pro/Wireless 3945ABG? I've already tried also the Ndisuio approach (using the source code of the DDK 2600.1106) obtaining exactly the same result: no connection is established when the OID_802_11_SSID is set. All the others oids works fine. Thanks Davide Tag: Which miniport created \Device\HardDisk%d? Tag: 81723
  - 19
    - How to save data in Display Driver? Hello, I need to save some information(for example, data in memory buffer) in Display Driver, but i don't know how to do this.(ZwXxx Routines?) Anyone can help me please? Thanks! Tag: Which miniport created \Device\HardDisk%d? Tag: 81722
  - 20
    - Network Refresh slow on S3 wake up using Keyboard key press Hi all, When a XP PC is put in the sleep mode (S3), there is no network refresh happening immediately when PC comes out of S3 by means of pressing a key on the keyboard. The network refresh happens randomly from 40 seconds to 1 minute or even more sometimes. I want to get the network refresh done as soon as the PC comes out of S3. Can anyone help me ? Sri Tag: Which miniport created \Device\HardDisk%d? Tag: 81520
  - 21
    - how to reset a USB device from user mode Sometimes I experienced the device failed enumeration. I need unplug and plug back that device again. Is there any solution that my user mode application can do that for me? Given the handle to a USB hub and port number. How could I reset the device connected to that port from user mode application? I noticed there is IOCTL_USB_HUB_CYCLE_PORT defined in wxp ddk. But I cannot find any documents for that. Any suggestions? Thanks zhwqiu Tag: Which miniport created \Device\HardDisk%d? Tag: 81509
  - 22
    - 1394 peripheral device identifcation (1) My driver is similar to 1394diag.sys which installs above Microsoft 1394 stack in Windows 2000/XP. This is unsigned driver. DeviceID for 1394 peripheral device is 1394\VendorName&ModelName. All my peripheral devices use same VendorName and ModelName. Still when a new peripheral device is connected, Windows 2000 and XP comes up with "New Hardware found" wizard. How can I avoid this? I donâ??t mind if I get warning "unsigned driver", but I canâ??t install driver again and again. Is driver signing required here to stop Windows prompting for driver for different EUID? DeviceId is same for all my 1394 devices and EUID is unique. What is the meaning of DeviceId if EUID is considered for DeviceId. (2) Is there any auto install method for driver to 1394 peripheral devices? I am looking for a way to have unique driver installed once for VendorName and ModelName. I know there are some topics in newsgroup. But what I dont understand is document clearly states driver for device is identified by VendorName and modelName. Documentation doesnot say driver has to be installed for every device if driver is unsigned. It only says driver installation will give "Unsigned driver" warning. So I am not sure if this is happening because driver is not signed or is it because of some other error/option in my own installation. (3) I didnâ??t see any driver signing document for peripheral drivers to 1394, found only 1394 bus drivers documentation. Thanks, Raj Tag: Which miniport created \Device\HardDisk%d? Tag: 81451
  - 23
    - Modem Handles not destroyed Has anyone had issues with the USB modem handles not being closed when a device is removed? Tag: Which miniport created \Device\HardDisk%d? Tag: 81447
  - 24
    - Generic Volume Surprise removal In windows 2k if you have a Mass Storage device and remove it from windows without stopping the device first you get a surprise removal message. I am able to suppress the MSD surprise removal but I cannot figure out with a filter driver how to remove the Generic Volume message Can anyone help? Dan Tag: Which miniport created \Device\HardDisk%d? Tag: 81437
  - 25
    - Bluetooth HCI Ioctls Is there any documentation that can help me find out how to communicate with the Dell TrueMobile Bluetooth module? I need to send HCI commands to the Bluetooth module. Is there a sample in either the SDK or DDK? Tag: Which miniport created \Device\HardDisk%d? Tag: 81436
- Next
  - 1
    - WHQL, HCT, WHDC, Windows Logo, Driver signing WHQL, HCT, WHDC, Windows Logo, designed for windows, Driver signing.....are these all same. Is windows logo requirement and driver signing are same? I am not able to find how to get my driver signed. This is 1394 driver for peripheral device. This driver is on top of Microsoft 1394 stack and is designed in the lines of 1394diag.sys. All I can find is 1394 bus driver or 1394 hardware. I cant see any mention of 1394 peripheral driver. I dont understand why 1394 peripheral link is not even refered from 1394 bus driver. Someone please refer the link. After Microsft arm twisted me into driver signing with otherwise crappy driver installation, I dont find proper information on this. Thanks. Tag: Which miniport created \Device\HardDisk%d? Tag: 81429
  - 2
    - MmMapIoSpace what exactly it does? MmMapIoSpace This function maps the specified physical address range to nonpaged process-dependent address space, providing a directly mapped virtual address to the device. Internally what exactly happens behing this API call. How does translation of address occurs?? suppose i have address dedicated for LCD controller or any other peripheral. In my driver i call MmMapIoSpace to access the device.. How will the processor know this address is meant for that particular device?? Or how does transaltion of address happens? Any suggestion is appreciated. Thanks Vijay PIC ,Bangalore Tag: Which miniport created \Device\HardDisk%d? Tag: 81423
  - 3
    - Conflicting errors code with USB Bulk requests When our USB function driver is used in a loop or for a long transfer of data (MBs)on a Bulk endpoint, after a short period of time the I/O status (IRP) returns a failure but the URB status is successful. This is after hundreds of successful requests. The IRP errors have been STATUS_IO_DEVICE_ERROR or STATUS_IO_TIMEOUT. The URB status is USBD_STATUS_SUCCESS in either case. In what conditions would the Windows USB stack return these errors and the URB be successful? Second question, when testing for IRP error codes from a IOCTL_INTERNAL_USB_SUBMIT_URB request, which I/O status should be tested? IO_STATUS_BLOCK ioStatus = { 0, 0 }; PIRP irp = IoBuildDeviceIoControlRequest(...., &ioStatus); // Boilerplate code... ntStatus = IoCallDriver(pdx->lowerDeviceObject, irp); if (ntStatus == STATUS_PENDING) // Wait on event At this point is io.Status.Status == irp->IoStatus.Status ???? If not, which is the proper method?? Thanks, SteveB, MCSD Welch Allyn, Inc. Tag: Which miniport created \Device\HardDisk%d? Tag: 81400
  - 4
    - best source address (TDI) Hello, I want to find the best source address for a given destination address in a TCP TDI filter, and bind the connection endpoint to that source address. How can I do this in TDI? Thanks, Piyush PS: Is this the right list for this question? Tag: Which miniport created \Device\HardDisk%d? Tag: 81026
  - 5
    - ZwQueryInformationFile Hello I'm using ZwQueryInformationFile to retreive a file name from a file handle. So i use the FileNameInformation class. Unfortunately the filename always begins with / (for example /Windows). My question is: how am i supposed to make a difference between C:\Windows and D:\Windows? Tag: Which miniport created \Device\HardDisk%d? Tag: 81022
  - 6
    - How to create a dynamic pin in video cap driver helle, everyone I'm an newbie in windows wdm driver development, i want to develop a video capture driver based testcap, can dynamic create a pin, meas when i connect the filter in graphedt, i hope i can dynamic create a new pin and dynamic delete the pin at the time of break connect like splitCam( [url]http://www.splitCamera.com[/url]). I think that is a very cool function. Can you tell me how I can get this function? Can you list some documents help me. Thank you very much for your time and consideration! -- wintop ------------------------------------------------------------------------ Posted via http://www.codecomments.com ------------------------------------------------------------------------ Tag: Which miniport created \Device\HardDisk%d? Tag: 81020
  - 7
    - [Off-Topic] WDF Books & W.Oney ? I've searched and found only OSR Publication's KMDF book , do you know any other books for WDF (except MSDN Resources) , and any news from Walter Oney about a new book project ? Tag: Which miniport created \Device\HardDisk%d? Tag: 81018
  - 8
    - Does the stream device have the recived/send buffer?If yes,where does it define? Hi All, When I write the MC8051 program,there is buffer to recive or send the date in the UART communication.And if there is date recived we can read the buffer directly instead of reading the bit one by one according to the timing graph. However,Does the WinCE driver program have the same mechanism as MC8051? If yes ,generally where is the buffer defined?Is it a register? For example,the driver of the AC97 ,...\WINCE420\PUBLIC\COMMON\OAK\DRIVERS\WAVEDEV\UNIFIED\ENSONIQ\ How does the chip read the media file and render?Is it one bit by one bit,or read the buffer? Thanks, Peter Tag: Which miniport created \Device\HardDisk%d? Tag: 81014
  - 9
    - TDI Client vs Winsock A few questions on TDI clients that someone may be able to answer: 1. In general, should there be appreciable differences in TDI client vs. Winsock throughput and latency over LAN or wireless links? 2. Does Winsock implement SO_SNDBUF/SO_RECVBUF sizes in afd.sys or in other components? That is does a TDI Client have to reimplement buffering or is it just an option passed to tcpip.sys (like TCP_NODELAY). 3. Can TDI clients issue more than 1 send irp at once? How would that affect throughput/fairness? Thanks. Tag: Which miniport created \Device\HardDisk%d? Tag: 81013
  - 10
    - page marked as read-only Hi all, is there any way to mark a piece of data as read-only? This data is previously allocated with ExAllocatePool. The purpose would be to generate a bugcheck when something tries to write unexpectedly to that part of data. Best regards, Calin Tag: Which miniport created \Device\HardDisk%d? Tag: 81009
  - 11
    - page marked as read-only Hi all, is there any way to mark a piece of data as read-only? this data is previously allocated with ExAllocatePool. the purpose would be to provoque a bugcheck when something tries to write unexpectedly to that part of data. Best regards, Calin Tag: Which miniport created \Device\HardDisk%d? Tag: 81008
  - 12
    - windows vista Good Morning, I've installed Windows Vista Beta 2 Build 5384, now I've got a scanner (hp 4300 C) doesn't run because I'haven't got the drivers for windows Vista Help me Thanks Claudio Tag: Which miniport created \Device\HardDisk%d? Tag: 81000
  - 13
    - KMDF Build Environments Hi, I'm using the Windows Server 2003 SP1 DDK with KMDF v1.1. I understand that KMDF v1.1 drivers are compatible with Windows 2000, XP, and Server 2003... So what difference does it make if I build my kmdf driver with the Win2000, WinXP, or Win2003 build environment? George Tag: Which miniport created \Device\HardDisk%d? Tag: 80993
  - 14
    - where to start for driver install I know there is devcon sample in DDK. This is kind of C program. But how to use it with some user friendly wizard like installation application. How to combine this C code with installation application. Is there any installation application coming with Windows. I have MSDN professional subscription. I can buy other install packages as well. I need to make a install program for a PNP driver (1394 driver). I am also planning to get this signed. This driver works with Windows 2000 and above. Thanks, Raj Tag: Which miniport created \Device\HardDisk%d? Tag: 80987
  - 15
    - Help for printer driver developer Hi guys! I need to create a printer driver to obtain a TIFF file. I'm reading for the second time the Microsoft DDK but it's very difficult. Does someone has a document that shows this matter? My problem is to understand what I need to develop: a port monitor? a driver? a printer graphics? Can someone help me to start? Thank you very much. Roberto Tag: Which miniport created \Device\HardDisk%d? Tag: 80985
  - 16
    - Please tell me do i have a Win32 API which captures capture WinXp DDK DbgPrint messeges Hi all, Is there a Win32 API which captures WinXp DDK DbgPrint messeges. I mean i wanted to capture those messeges without using a standard debugger... Can anybody help me for this, Thanks and Regards, Rohit Tag: Which miniport created \Device\HardDisk%d? Tag: 80984
  - 17
    - I2C lines and video drivers Is there any way to write a filter driver to take control of the I2C lines on a video card? I know the video miniport owns these functions but is there an API for general access? Tag: Which miniport created \Device\HardDisk%d? Tag: 80983
  - 18
    - source code for pen drive driver on windows platform Hi all, I need the source code of pen drive driver for windows. from where can I get it? Tag: Which miniport created \Device\HardDisk%d? Tag: 80975
  - 19
    - Building a device driver non interactively Hi, Our system build has 600 components all in VC++ that are build non interactively( without human intervention) using script files running omake - OPTIONS xx.mak. Adding a windows device driver is posing problem because after the call to setenv.bat , the batch file stops executing and doesnt process commands like "build sources". Has anyone attempted a non intewractive build mechanism. Your help is very much appreciated. Thanks Ashish Tag: Which miniport created \Device\HardDisk%d? Tag: 80965
  - 20
    - Vista frame buffer driver Hi All, I have frame buffer driver works fine for WinXP. I test it under Vista Beat 2 build 5384 and it won't work (error code 43). Does Vista support frame buffer driver? I couldn't find frame buffer driver sample code in WDK build 5384. Does that mean no frame buffer driver support under Vista? hyang Tag: Which miniport created \Device\HardDisk%d? Tag: 80964
  - 21
    - Vist frame buffer driver Hi All, I have frame buffer driver works fine for WinXP. I test it under Vista Beat 2 build 5384 and it won't work (error code 43). Does Vista support frame buffer driver? I couldn't find frame buffer driver sample code in WDK build 5384. Does that mean no frame buffer driver support under Vista? hyang Tag: Which miniport created \Device\HardDisk%d? Tag: 80963
  - 22
    - TCP KeepAlive via TDI Hi, Anyone know how to turn on TCP KeepAlive via TDI. Also, the default value is 7200000 milliseconds. Is there anyway to change this via TDI. Thanks, -David G Tag: Which miniport created \Device\HardDisk%d? Tag: 80953
  - 23
    - 32-bit app IOCTL_SCSI_PASS_THROUGH on x64 Windows ==> Error 1306 Every time I use IOCTL_SCSI_PASS_THROUGH on a tape device from a 32-bit app on x64 Windows, the RC = 1306. The same 32-bit app on Windows 32-bit works, as does a 64-bit app on x64 Windows. Is there a way to support passthrough on an x64 OS from a 32-bit app? I observed this behavior after a 32-bit compile of spti from the DDK. Thanks in advance. -- Tape Device Driver Development IBM Tucson Tag: Which miniport created \Device\HardDisk%d? Tag: 80948
  - 24
    - Mux compile problem. When I compile Mux driver under Windows XP Free Build Environment, I got error below and don't know how to fix it. Can someone please help? C:\Mux1n3>build -w BUILD: Adding /Y to COPYCMD so xcopy ops won't hang. BUILD: Object root set to: ==> objfre_wxp_x86 BUILD: Compile and Link for i386 BUILD: Loading C:\WINDDK\3790~1.183\build.dat... BUILD: Computing Include file dependencies: BUILD: Examining c:\mux1n3 directory for files to compile. BUILD: Linking c:\mux1n3 directory Linking Executable - objfre_wxp_x86\i386\mux1n.sys for i386 protocol.obj : warning LNK4006: _OidToString@4 already defined in mux.obj; secon d definition ignored errors in directory c:\mux1n3 LINK : error LNK1218: warning treated as error; no output file generated BUILD: Done 1 executable built - 1 Warning - 1 Error C:\Mux1n3> Tag: Which miniport created \Device\HardDisk%d? Tag: 80944
  - 25
    - MDL's I have a driver that receves a buffer from another kernel mode component it may also receive a MDL (that corresponds to that kernel buffer), that mdl may or may not be locked. If it does not receive a mdl I do an IoAllocateMdl on the buffer then I want to check if the mdl is locked. So I check the mdl->flags for MDL_PAGES_LOCKED if not I do a MmBuildMdlForNonPagedPool Does that lock the buffer/mdl? I do not afterwards see the MDL_PAGES_LOCKED flag set in mdl->flags Do I need the MmProbeAndLock, I thought that was only (or primarily) for buffers from user mode. thanks also after this mdl is locked ok/recommended/ not recommended to do a MmGetMdlPfnArray() to know what how to program some device. if that device uses 64 bit address registers do I, zero the top 32 bits, or is it recommended to use one of the Adapter->ScatterfGather type funcs ? Tag: Which miniport created \Device\HardDisk%d? Tag: 80942

I'm working on a Windows diskless boot solution (using SRP over an
Infiniband adapter) and I need to know on behalf of which miniport
each \Device\HardDisk%d device object was created. This is so that I
can distinguish the Disk device objects that were created on behalf of
my SRP SCSI miniport from those corresponding to local hard drives.
This lets me choose the proper partition to mount the boot volume from.

I know how to get the device objects for each \Device\HardDisk%d, but
I don't know how to tell which SCSI (or whatever) miniport discovered
the physical drive that the object represents.

Any advice would be appreciated.

Rob Netzer
System Fabric Works, Inc.
rob@systemfabricworks.com

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Re: Which miniport created \Device\HardDisk%d? by Maxim

Maxim
Mon Jun 19 14:12:59 CDT 2006

Try scanning HKLM\HARDWARE\DEVICEMAP

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com

<googlex12@bolabs.com> wrote in message
news:1150743155.030373.40050@y41g2000cwy.googlegroups.com...
> I'm working on a Windows diskless boot solution (using SRP over an
> Infiniband adapter) and I need to know on behalf of which miniport
> each \Device\HardDisk%d device object was created. This is so that I
> can distinguish the Disk device objects that were created on behalf of
> my SRP SCSI miniport from those corresponding to local hard drives.
> This lets me choose the proper partition to mount the boot volume from.
>
> I know how to get the device objects for each \Device\HardDisk%d, but
> I don't know how to tell which SCSI (or whatever) miniport discovered
> the physical drive that the object represents.
>
> Any advice would be appreciated.
>
> Rob Netzer
> System Fabric Works, Inc.
> rob@systemfabricworks.com
>

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