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acpi  data  device  driver  eval method  ioctl acpi  kernel  method  msgs  osronline  pci express  reboot  status buffer  thunderbolt  windows 
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Last Build Date: Sat, 23 Sep 2017 14:45:00 EDT

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Sat, 23 Sep 2017 00:22:00 EDT

Hi I have below Get() func. to execute an ACPI _DSM method (@ bottom) in my device ACPI namespace(). It fails when I do WdfIoTargetSendIoctlSynchronously(IOCTL_ACPI_EVAL_METHOD) with STATUS_BUFFER_TOO_SMALL. I am invoking it as DEFINE_GUID(G...

Multiple CAs in the Kernel (4 msgs)

Sat, 23 Sep 2017 10:47:00 EDT

Hi, I'm researching how things work in the kernel and I've followed the "How to get base address of ntdll.dll under kernel Windows 8": thread, which presents the following function to determine the ba...

How is device removablility indicated in a thunderbolt deviec? (2 msgs)

Fri, 22 Sep 2017 10:15:00 EDT

Hi All, What causes windows to set CM_DEVCAP_REMOVABLE on a PCIe device connected inside a thunderbolt device? Details: I'm working on a Thunderbolt 3 dock that has two USB xHCI host controllers with various USB devices inside it. Several of th...

Data streaming software architecture (6 msgs)

Thu, 21 Sep 2017 19:21:00 EDT

Hi, I'm trying to make a driver and user-land application for streaming data to or from a PCI Express card (but never in both directions at the same time). I'll focus on data flow in read case: Camera -> DMA1 -> board RAM -> DMA2 -> PCI Express bus ...

How to initiate reboot of Windows in my driver code? (18 msgs)

Fri, 22 Sep 2017 18:37:00 EDT

Hi All, I want to reboot request for Windows Reboot when I receive some IRPs. in my driver I was searching for an API call to do this in MSDN. Unfortunately, didn't found one. Please let me know if there are any such API's available or there is so...