Kernel driver for ACPI node load fail as Code 12 (0xC00000E5)

Question

Hi,

I am writing a kernel driver for an ACPI node.

I declared resource in ASL for this node as below:

        Device (TEST) 
        { 
            Name (_HID, "ACPITEST")  // _HID: Hardware ID 

            Name (ACRS, ResourceTemplate() { 
               Memory32Fixed (ReadWrite, 0xFE0B0000, 0x1000)
               IO (Decode16, 0x940, 0x940, 0, 0x01) 
            }) 

            Method (_CRS, 0, Serialized) 
            { 
                Return (ACRS) 
            } 
        }

I created a KMDF driver based on the VS2022 template. I only modifed the INF to include the ACPI Hardware ID.

   %TestDriver.DeviceDesc%=TestDriver_Device, ACPI\ACPITEST ; TODO: edit hw-id

When I load the driver, the device cannot start successfully, while the resource seems set correctly.

Device status: Code 12

Resource settings meet my ASL code

Driver status: 0xC00000E5

Any idea is appreciated.

Thanks.

Answer 1

Hello there,

The error code "0xC00000E5" (NTSTATUS: STATUS_NOT_CAPABLE) indicates that the requested operation is not supported by the device or resource. In the context of a kernel driver failing to load for an ACPI (Advanced Configuration and Power Interface) node with Code 12, it suggests that the driver might not be compatible with the hardware or that there are resource conflicts preventing the driver from loading properly.

Here are some steps you can take to troubleshoot and resolve this issue:

Update or Reinstall the Driver:

Make sure you are using the latest version of the driver that is compatible with your hardware and operating system. If the driver you are using is outdated or incompatible, consider updating it from the manufacturer's website.

Check Device Compatibility:

Verify that the driver you are trying to install is specifically designed for the hardware and ACPI node in question. Using incorrect or mismatched drivers can lead to compatibility issues.

Resource Conflicts:

Code 12 errors often relate to resource conflicts. Another device or driver might be using the same resources (IRQ, I/O ports, etc.), causing conflicts. Check the Device Manager for any devices with conflicts and try to resolve them.

BIOS/UEFI Settings:

Make sure your computer's BIOS or UEFI settings are properly configured. Some settings, such as device settings or resource allocation, can affect driver loading. Reset BIOS settings to default if needed.

Check for Hardware Issues:

It's possible that there's a hardware issue with the ACPI node or the hardware associated with it. Ensure that the hardware is properly connected and functioning.

System Restore:

If the issue started after recent changes or installations, consider using System Restore to revert your system to a previous state where the driver was working.

Check for Windows Updates:

Ensure that your Windows operating system is up to date with the latest updates, including driver updates from Windows Update.

Check Event Viewer:

Look in the Windows Event Viewer for more detailed information about the error. It might provide additional context or error codes that can help identify the root cause.

Contact Manufacturer Support:

If you've exhausted troubleshooting steps and are still encountering the issue, consider reaching out to the manufacturer's support for assistance. They might have specific guidance for your hardware and driver.

Check Known Issues:

Search online for any known issues or solutions related to the specific ACPI node, hardware, and driver combination you are working with. Forums and communities might have insights from others who have faced similar problems.

Driver Verifier:

Windows includes a tool called Driver Verifier that can help identify driver-related issues. You can enable Driver Verifier and analyze the generated crash dumps for further insights.

Remember that working with kernel drivers and hardware-related issues can be complex, and incorrect actions can lead to system instability.

I used AI provided by ChatGPT to formulate part of this response. I have verified that the information is accurate before sharing it with you.

Hope this resolves your Query !!

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