1. Efk Provider Driver Download For Windows 10 Version
2. Efk Provider Driver Download For Windows 10 32-bit

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The WDK is used to develop, test, and deploy Windows drivers.

Windows 10 - Compatible Applications and Drivers. Note: New product model launch after July 2015 is compatible to Windows 10 unless otherwise stated. You can check for compatible OS for your specific model by clicking here. How to check: Select a product category (For e.g. 'Inkjet printers') Select a product series (For e.g. Argentina Australia Austria Bangladesh Belarus Belgium Bolivia Brazil Bulgaria Canada Chile Colombia Costa Rica Croatia Cyprus Czech Republic Denmark Dominican Republic Ecuador Egypt El Salvador Estonia Finland France Germany Greece Guatemala Honduras Hong Kong S.A.R. Of China Hungary India Indonesia Ireland Israel Italy Japan Latvia Lithuania.

Join the Windows Insider Program to get WDK Insider Preview builds. For installation instructions for the Windows Insider Preview builds, see Installing preview versions of the Windows Driver Kit (WDK).

Runtime requirements

You can run the Windows 10, version 2004 WDK on Windows 7 and later, and use it to develop drivers for these operating systems:

Client OS	Server OS
Windows 10	Windows Server 2019, Windows Server 2016
Windows 8.1	Windows Server 2012 R2
Windows 8	Windows Server 2012
Windows 7	Windows Server 2008 R2 SP1

WDK for Windows 10, version 2004

Step 1: Install Visual Studio 2019

The WDK requires Visual Studio. For more information about system requirements for Visual Studio, see Visual Studio 2019 System Requirements.

The following editions of Visual Studio 2019 support driver development for this release:

When you install Visual Studio 2019, select the Desktop development with C++ workload. Asset Driver download. The Windows 10 Software Development Kit (SDK) is automatically included, and is displayed in the right-hand Summary pane. Note that the version of the SDK that is compatible with the WDK for Windows 10, version 2004 may not be the default SDK. To select the correct SDK:

In Visual Studio Installer, on the Individual components tab, search for Windows 10 SDK (10.0.19041.0), select this version and continue with install. Note that Visual Studio will automatically install Windows 10 SDK (10.0.19041.1) on your machine.

If you already have Visual Studio 2019 installed, you can install the Windows 10 SDK (10.0.19041.1) by using the Modify button in Visual Studio install.

WDK has Spectre mitigation enabled by default but requires spectre mitigated libraries to be installed with Visual Studio for each architecture you are developing for. Additionally, developing drivers for ARM/ARM64 require the build tools for these architectures to also be installed with Visual Studio. To locate these items you will need to know the latest version of MSVC installed on your system.

To find the latest version of MSVC installed on your system, in Visual Studio Installer go to workload page, on the right pane under installation details, expand Desktop development with C++ and locate the MSVC v142 - VS 2019 C++ x64/x86 build tools (V14.xx) - note where xx should be the highest version available.

With this information (v14.xx), go to Individual components and search for v14.xx. This will return the tool sets for all architectures, including Spectre mitigated libs. Select the driver architecture you are developing for.

For example, searching for v14.25 returns the following:

Step 1.5 Install Refreshed Windows SDK 10.0.19041.16385 for Windows 10, version 2004

This SDK is strongly recommended and will eventually be made available thru Visual Studio

Step 2: Install Refreshed WDK for Windows 10, version 2004

The WDK Visual Studio extension is included in the default WDK installation.

Tip

If you can't find driver project templates in Visual Studio, the WDK Visual Studio extension didn't install properly. To resolve this, run the WDK.vsix file from this location: C:Program Files (x86)Windows Kits10VsixVS2019WDK.vsix.

Enterprise WDK (EWDK) for Windows 10, version 2004

The EWDK is a standalone, self-contained command-line environment for building drivers. It includes the Visual Studio Build Tools, the SDK, and the WDK. The latest public version of the EWDK contains Visual Studio 2019 Build Tools 16.7.0 and MSVC toolset v14.23. To get started, mount the ISO and run LaunchBuildEnv.

The EWDK also requires the .NET Framework version 4.7.2. For more information about other requirements for the .NET Framework, see .NET Framework system requirements.

EWDK with Visual Studio Build Tools

You can use the Visual Studio interface with the build tools provided in the EWDK.

1. Mount the EWDK ISO.
2. Run LaunchBuildEnv.cmd.
3. In the environment created in step 2, type SetupVSEnv, and then press Enter.
4. Launch devenv.exe from the same environment, using the full file path.Example: 'C:Program Files (x86)Microsoft Visual Studio2019%Community|Professional|Enterprise%Common7IDEdevenv.exe'

Note that the Visual Studio major version should match with the version in the EWDK. For example, Visual Studio 2019 works with the EWDK that contain VS16.X build tools.

Driver samples for Windows 10

To download the driver samples, do one of the following:

• Go to the driver samples page on GitHub, click Clone or download, and then click Download ZIP.
• Download the GitHub Extension for Visual Studio, and then connect to the GitHub repositories.
• Browse the driver samples on the Microsoft Samples portal.

Related downloads

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The Windows ACPI driver, Acpi.sys, is an inbox component of the Windows operating system. The responsibilities of Acpi.sys include support for power management and Plug and Play (PnP) device enumeration. On hardware platforms that have an ACPI BIOS, the HAL causes Acpi.sys to be loaded during system startup at the base of the device tree. Acpi.sys acts as the interface between the operating system and the ACPI BIOS. Acpi.sys is transparent to the other drivers in the device tree.

Other tasks performed by Acpi.sys on a particular hardware platform might include reprogramming the resources for a COM port or enabling the USB controller for system wake-up.

In this topic

ACPI devices

The hardware platform vendor specifies a hierarchy of ACPI namespaces in the ACPI BIOS to describe the hardware topology of the platform. For more information, see ACPI Namespace Hierarchy.

For each device described in the ACPI namespace hierarchy, the Windows ACPI driver, Acpi.sys, creates either a filter device object (filter DO) or a physical device object (PDO). If the device is integrated into the system board, Acpi.sys creates a filter device object, representing an ACPI bus filter, and attaches it to the device stack immediately above the bus driver (PDO). For other devices described in the ACPI namespace but not on the system board, Acpi.sys creates the PDO. Acpi.sys provides power management and PnP features to the device stack by means of these device objects. For more information, see Device Stacks for an ACPI Device.

A device for which Acpi.sys creates a device object is called an ACPI device. The set of ACPI devices varies from one hardware platform to the next, and depends on the ACPI BIOS and the configuration of the motherboard. Note that Acpi.sys loads an ACPI bus filter only for a device that is described in the ACPI namespace and is permanently connected to the hardware platform (typically, this device is integrated into the core silicon or soldered to the system board). Not all motherboard devices have an ACPI bus filter.

All ACPI functionality is transparent to higher-level drivers. Scantron cameras. These drivers must make no assumptions about the presence or absence of an ACPI filter in any given device stack.

Acpi.sys and the ACPI BIOS support the basic functions of an ACPI device. To enhance the functionality of an ACPI device, the device vendor can supply a WDM function driver. For more information, see Operation of an ACPI Device Function Driver.

An ACPI device is specified by a definition block in the system description tables in the ACPI BIOS. A device's definition block specifies, among other things, an operation region, which is a contiguous block of device memory that is used to access device data. Only Acpi.sys modifies the data in an operation region. The device's function driver can read the data in an operation region but must not modify the data. When called, an operation region handler transfers bytes in the operation region to and from the data buffer in Acpi.sys. The combined operation of the function driver and Acpi.sys is device-specific and is defined in the ACPI BIOS by the hardware vendor. In general, the function driver and Acpi.sys access particular areas in an operation region to perform device-specific operations and retrieve information. For more information, see Supporting an Operation Region.

ACPI control methods

Efk Provider Driver Download For Windows 10 Version

ACPI control methods are software objects that declare and define simple operations to query and configure ACPI devices. Control methods are stored in the ACPI BIOS and are encoded in a byte-code format called ACPI Machine Language (AML). The control methods for a device are loaded from the system firmware into the device's ACPI namespace in memory, and interpreted by the Windows ACPI driver, Acpi.sys.

To invoke a control method, the kernel-mode driver for an ACPI device initiates an IRP_MJ_DEVICE_CONTROL request, which is handled by Acpi.sys. For drivers loaded on ACPI-enumerated devices, Acpi.sys always implements the physical device object (PDO) in the driver stack. For more information, see Evaluating ACPI Control Methods.

ACPI specification

The Advanced Configuration and Power Interface Specification (ACPI 5.0 specification) is available from the Unified Extensible Firmware Interface Forum website.

Revision 5.0 of the ACPI specification introduces a set of features to support low-power, mobile PCs that are based on System on a Chip (SoC) integrated circuits and that implement the connected standby power model. Starting with Windows 8 and later versions, the Windows ACPI driver, Acpi.sys, supports the new features in the ACPI 5.0 specification. For more information, see Windows ACPI design guide for SoC platforms.

ACPI debugging

System integrators and ACPI device driver developers can use the Microsoft AMLI debugger to debug AML code. Because AML is an interpreted language, AML debugging requires special software tools.

For more information about the AMLI debugger, see ACPI Debugging.

Microsoft ACPI source language (ASL) compiler

For information about compiling ACPI Source Language (ASL) into AML, see Microsoft ASL Compiler.

Version 5.0 of the Microsoft ASL compiler supports features in the ACPI 5.0 specification.

The ASL compiler is distributed with the Windows Driver Kit (WDK).

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The ASL compiler (asl.exe) is located in the ToolsarmACPIVerify, Toolsarm64ACPIVerify, Toolsx86ACPIVerify, and Toolsx64ACPIVerify directories of the installed WDK, for example, C:Program Files (x86)Windows Kits10Toolsx86ACPIVerify.