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MTP Device Services Extension Specification

Updated: March 10, 2010

File name: MTPDevServExt_Spec.docx
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The MTP device services extension to the Media Transfer Protocol (MTP) helps an MTP initiator to find and access certain types of content that is stored on a responder (device). These mechanisms provide greater extensibility than the existing datacode mechanisms.

This specification is for device manufacturers that are building MTP-compatible devices. It assumes that the reader is familiar with Windows Portable Devices (WPD) technology and the USB Media Transfer Protocol Specification, Revision 1.0.

This information applies to the Windows 7 operating system.

What's New:

  • Expanded description of MTP device services fundamentals.

  • Added abstract services.

  • Expanded the updated behaviors for non-service MTP operations.

  • Updated the extension implementation, including a new GetFormatCapabilities operation and a new UseDeviceStage property.

  • Added a “Resources” section.

  • Added numbers to the section headings for ease of reference.

Included in this paper:

  • MTP Device Services Fundamentals

  • Updated Behaviors for Non-Service MTP Operations

  • MTP Device Services Extension Implementation

    • MTP Extension Identification

    • Extension Operations

    • Extension Responses

    • Extension Device Properties

    • Extension Events

    • Extension Object Properties

See Also:

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