Device Drivers

Selecting Best Compatible Driver (Windows XP)
On May 8, 12:10 pm, Brianhub <Brian...(a)discussions.microsoft.com> wrote: The drivers are for a USB communication adapter for an industrial network. Because it is a custom driver class it can’t be tested by Microsoft’ hardware lab. Not true at all, there is an "Unclassified" suite in DTM that will allow ... 8 May 2008 20:56

Out-of-band data
I have a system containing 2 ndis intermediate drivers. The first driver determines "additional data" about a packet and then sends the packet and "additional data" to the second driver. I intend on using the out-of-bound data struct in the packet descriptor to send the "additional data". Is this a good/corr... 8 May 2008 20:10

Filter driver installation
Hi I am working on a filter driver for a PCI-PCI bridge device. This driver needs to update one of the PCI function registers if not configured properly. The filter driver is based on the KMDF toaster filter driver. I have come across the following issue when installing the driver. The inf file was based on... 8 May 2008 17:48

how to correctly install a NDIS IM from your app?
hi. currently i'm doing SetupCopyOEMInfW() for each inf file, then issue a NetCfgClassSetup::Install() for the pnpid of my service (not miniport) component. it works fine on all systems in the test environment (2000, xp, vista home) except for one Vista Business Edition installation at one of my friends -- Ne... 8 May 2008 17:01

Virtual USB Mouse Device only shows as generic HID device.
I wrote a bus driver that generated virtual USB PDO for Printer, Scanner, and SmartCard. It worked fine before. Recently, I was requested to provide a virtual USB mouse PDO. What I did was as following steps 1. An usermode application access bus driver to add a new PDO 2. bus driver use IoCreateDeviceSecure ... 8 May 2008 16:14

USB on Windows XP: Composite Devices and Selective Suspend
Hi, I have a requirement to Selectively Suspend a Composite Device on Windows XP Does anyone know if the Common Class Generic Parent driver (usbccgp.sys) supports Selective Suspend under Windows XP? Is there a minimum SP (i.e. SP2 or SP3) needed to support this? TIA Pete ... 8 May 2008 13:51

Accessing files on FAT32 partition at boot time
Is it possible to access files on a FAT32 parition during boot time from a PnP driver? ZwCreateFile() is returning STATUS_UNRECOGNIZED_VOLUME. I tried playing around with dependencies and load order, but that didn't seem to do anything. If I re-start the driver after the system has fully booted, I am able to... 8 May 2008 13:51

Selecting Best Compatible Driver (Windows XP)
We have a driver package that is installed by when our software is installed. It is installed in to the Driver Store using the DriverPackagePreinstall function. The drivers are for a USB communication adapter for an industrial network. Because it is a custom driver class it can't be tested by Microsoft' hardw... 8 May 2008 12:17

copy from contiguous kernel memory - better way?
My device driver provides contiguous memory buffers to its vidcap h/w via AllocateCommonBuffers. Is there a better way to make these capture buffer contents visible to the user-level app than by copying their contents out to user-space? The kernel driver allocates common buffers, and the user-level app alloca... 8 May 2008 11:29

Bug in usbser.sys when using a high speed hub
I have a full speed USB device that I'm developing that uses usbser.sys. I found that if I connect the device directly to my Dell laptop everything works find. If I connect the device through a high speed USB 2.0 hub everything is very flaky. I see hangs when opening the com port, Windows lockups, and oth... 8 May 2008 11:29