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Windows 7 Portable Device Development Kits

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There are several different resources made available to portable device manufacturers to assist in device firmware and driver development, and to application developers wishing to create applications that interact with these portable devices. These resources are provided and maintained by members of the Windows Portable Devices team.

This post provides a description for the following development kits:

  •  Windows 7 Portable Device Enabling Kit for MTP
  • Windows Portable Devices SDK
  • Windows Portable Devices Driver Kit
  • Windows Media Device Manager SDK
  • Microsoft Device Experience Development Kit
  • Windows Logo Kit

Windows 7 Portable Device Enabling Kit for MTP

This development kit is designed to assist portable device manufacturers in the development of Media Transfer Protocol (MTP) device firmware that is compatible with the various MTP device transports that Windows supports, and with Device Services. There are two packages provided for download:

Windows 7 Portable Device Enabling Kit for MTP - Tools
The tools kit includes design documentation and implementation guidelines, a Windows-based reference design, development tools, and the updated MTP Device Simulator.

Windows 7 Portable Device Enabling Kit for MTP - Reference Code
The reference code kit includes the core responder reference source code that is being made available under a separate Berkeley Software Distribution (BSD)–style license.

To download both packages of the Windows 7 Portable Device Enabling Kit for MTP, go to: https://www.microsoft.com/whdc/device/wpd/MTP-DEK_Win7.mspx

You are not required to license the reference code in order to use the tools and resources provided in the tools kit. This kit is free to download and use.

Windows Portable Devices SDK

The WPD SDK includes the WPD Application Programming Interface (API) that is supported in Windows 7, Windows Vista, and Windows XP operating Systems. Developers will use this API to write Windows applications in C++. Being a COM API, the WPD API is also accessible from Managed code, so C# .Net, and Visual Basic .Net applications can use COM Interoperability to invoke the same functionality that the C++ API provides. WPD applications can: explore a device, send and receive content, and even control the device, for example, take a picture or send a text message.

The WPD SDK includes two sample applications for C++/COM developers. The first, WpdApiSample, is a command-line desktop application that demonstrates how you would: enumerate connected devices, explore those devices, query device-objects for properties and attributes, send and retrieve data, and so on. The second sample, WpdServicesApiSample, is a command-line desktop application that demonstrates how you would explore a Contacts service on a device that is attached to your computer.

The WPD SDK also includes an Automation Object Model that is supported in Windows 7. Developers can use the Automation model to write web applications that accomplish tasks similar to those accomplished with the API. We provided an introduction to WPD Automation in this recent post.

The WPD SDK is included in the Windows SDK which can be downloaded from https://www.microsoft.com/downloads/details.aspx?FamilyID=c17ba869-9671-4330-a63e-1fd44e0e2505&displaylang=en

The documentation for the WPD SDK (both the API and Automation Object Model) is found on MSDN at: https://msdn.microsoft.com/en-us/library/dd388998(VS.85).aspx

Windows Portable Devices Driver Kit

The WPD Driver Kit includes a Device Driver Interface (DDI) that is supported in Windows 7, Windows Vista, and Windows XP operating Systems. Developers will use this DDI to write drivers for devices that are not already supported by the MTP or Mass Storage class drivers that Microsoft distributes.

The WPD Driver Kit includes five sample device drivers which are described in the following table. In the next post, we covered each sample in more detail.

Sample Driver

Description

WpdHelloWorldDriver

This is the most basic WPD driver that emulates interaction with hardware. Supports four objects: device, storage, folder, and file. This provides the scaffolding or skeleton for developing a WPD driver.

WpdBasicHardwareDriver

Builds upon the WpdHelloWorldDriver and demonstrates interaction with simple hardware devices. Supports nine sensor devices: 2-axis accelerometer, 3-axis accelerometer, temperature/humidity sensor, pressure sensor, distance sensor, passive infrared sensor, compass, vibration sensor, and light sensor. These sensor devices are simple devices that are controlled by a Parallax BS2 microcontroller attached to the PC.

If you plan to develop drivers that integrate sensors with Windows 7, we recommend using the Sensor API and Sensor Driver Model. If you need to develop drivers to integrate sensors with Windows Vista or Windows XP, WPD provides a viable solution.

WpdServiceSampleDriver

Demonstrates how a developer would extend the WpdHelloWorldDriver to support a simulated device with a Contacts device service.(Using this service, WPD applications can discover events, methods, and properties associated with the Contacts stored on the device. This sample emulates interaction with hardware.

WpdMultiTransportDriver

Demonstrates how developers can take advantage of the Windows 7 support for multiple transports. The sample emulates interaction with hardware and demonstrates support for the following transports: IP, Bluetooth, and USB. We covered an overview of Multi-transport support in Windows 7 here.

WpdWudfSampleDriver

A comprehensive sample driver that demonstrates what to enable in the WPD DDI for media transfer scenarios (such as music and photos). This sample supports media synchronization with Windows Media Player, and also emulates interaction with hardware.

The WPD Driver Kit is included in the Windows Driver Kit (WDK). For information about downloading the WDK, see: https://www.microsoft.com/whdc/devtools/wdk/WDKpkg.mspx

The documentation for the WPD Driver Kit is found on MSDN at: https://msdn.microsoft.com/en-us/library/dd419925.aspx

Windows Media Device Manager SDK

The Windows Media Device Manager (WMDM) SDK enables you to build desktop applications and components that can communicate with connected portable devices. WMDM enables your application or component to enumerate, explore, and exchange files with a device, query for metadata, and request play count information. Applications or components built on WMDM have a consistent API for communicating with a wide range of devices including Media Transfer Protocol (MTP), Mass Storage Class (MSC), RAPI, and other devices built on both the latest and previous versions of Windows Media technology.

The Windows Media Device Manager SDK is available at: https://msdn.microsoft.com/en-us/windows/bb190309.aspx.

Microsoft Device Experience Development Kit

The Microsoft Device Experience Development Kit provides detailed information and material that you would need to know in order to develop Device Stage™ experiences for Portable Devices. The development kit includes device development guides, planning worksheets, tutorials, and development samples that you can use when developing a Device Stage experience on Windows 7. For portable devices, Device Stage supports the industry-standard Media Transfer Protocol (MTP) 1.0 with device services that enable a new rich set of features in Windows 7.

The development kit along with other pertinent information to build a complete Windows Device Experience is available at: https://www.microsoft.com/whdc/device/DeviceExperience/default.mspx

The kit is free to download and use.

Windows Logo Kit

The primary use of the Windows Logo Kit (WLK) is for Windows Logo Program device certification. This kit can also be used for product development. We encourage its use during the product development cycle of hardware in order to ensure device compliance with both Windows and industry standards. The kit includes several tests designed to validate device implementation and behavior at multiple levels. There are tests for USB compliance, Media Transfer Protocol (MTP) compliance, and Windows Portable Devices (WPD) platform compliance that also cover device services validation.

There is a significant amount of information available about the WLK, including user guides and video tutorials. For more information about the WLK see: https://www.microsoft.com/whdc/winlogo/WLK/default.mspx

The kit is free to download and use.

Other Resources

Windows Portable Devices node on Windows Hardware Developer Central

https://www.microsoft.com/whdc/device/wpd/default.mspx

Windows Portable Devices on Microsoft Developer Network

https://msdn.microsoft.com/en-us/library/dd388998(VS.85).aspx

 

This posting is provided "AS IS" with no warranties and confers no rights.

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