Device Drivers

mapping device memory to userspace through MDL direct io communica
I am trying to map the device memory(128MB) to userspace through direct IO interface using MDL's. I have choosen below approach for mapping the memory to user space: IoAllocateMdl for allocating buffer for MDL(with virtual address of the device memory, from MmMapIoSpace) MmBuildMdlForNonPagedPool MmMapLockedP... 23 Mar 2008 04:30

The first effort going to install bulkusb driver.
I have changed VID/PID in inf according to bulkusb sample. then I copy bulkusb.sys to the same dir as bulkusb.inf. when I plug into my hardware, there is a driver being loaded automatically in the Human Interface Devices. not USB HID interface device, but a HID-compliant devices. so I choose to uninstall, ref... 24 Mar 2008 16:10

Process Monitor Symbols loading Problem on Windows 2000 Professional,...
Kerem, Windows2k is not supported anymore. Maybe you may find an alternative solution for your needs. What do you need exactly to accomplish using procmon? -- V. This posting is provided "AS IS" with no warranties, and confers no rights. "Kerem G�mr�kc�" <kareem114(a)hotmail.com> wrote in message news:Oa2SS... 22 Mar 2008 15:30

about driver architecture.
this is what i got from usbview Device Descriptor: bcdUSB: 0x0200 bDeviceClass: 0x00 bDeviceSubClass: 0x00 bDeviceProtocol: 0x00 bMaxPacketSize0: 0x08 (8) idVendor: 0x04B4 (Cypress Semiconductor) idProduct: 0xF232 bcdDevice: 0x0000 iManufacturer... 25 Mar 2008 03:36

Where can I get symbols for wdfldr.sys and wdf01000.sys?
Where can I get symbols for wdfldr.sys and wdf01000.sys? The debugger cannot find them anywhere on the symbol server. A google search suggests that they are in the WDK but I am currently running the WDK as installed from WDK_6000.16386.061101-2205.iso and cannot find these symbol files anywhere. Can someone pl... 24 Mar 2008 16:10

.inf for using usbser.sys with CDC Vcom on Windows 98
My company has a device that uses usbser.sys in WindowsXP/2000/Vista to act as a CDC Vcom port. It works fine in those OS versions. The problem I am having is that when I attempt to use the same .inf file in Win98 I see my device as installed with no problems in device manager but the device never seems to be i... 22 Mar 2008 01:47

Driver Profiling On Server 2003/2008
Hi! What do folks suggest for profiling tools to tune an NDIS miniport on Server 2003 and 2008. What results have people found with tools such as VTune? Thanks! ... 21 Mar 2008 19:17

SCSI Pass Through to SAS Enclosure
Hi, I need to send various SCSI commands to a SAS disk enclosure connected with LSI SCSI HBA. I read the SPTI sample in DDK and realize I need to use CreateFile with device name such as \\.\PhysicalDrive0, \\.\scsi1: to get a handle of the device and then use the handle in the SCSI_PASS_THROUGH IOCTL call to... 25 Mar 2008 12:31

verifier - caller complete power irp without passing down
Just wondering peoples opinions. I normally just leave verifier running for my stuff with the standard settings. I just saw the below error when the system was sitting idle. My driver is a WinXP SCSI miniport (so both my miniport and the scsiport are being "verified".) "Caller has completed successful IRP_MJ_POW... 21 Mar 2008 16:35

Graphic-Tablet driver
Dear Newsgroup, I have a Graphic-Tablet that I like to use, but there is no driver support for Windows-Vista. So I decided to write an application that takes the role of a driver. Reading out the Tablet was quite easy because it is connected by serial port. To say the operating system were the mouse curser... 21 Mar 2008 16:01