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emUSB-Host Media Transfer Protocol (MTP)





About MTP

The Media Transfer Protocol (MTP) is a USB class protocol which can be used to transfer files to and from storage devices. MTP is an official extension of the Picture Transfer Protocol (PTP) designed to allow digital cameras to exchange image files with a computer. MTP extends this by adding support for all types of files.

Application Samples emUSB-Host MTP





Structure of MTP Component

An MTP device connected to emUSB-Host is accessed directly by the application through the MTP class API. In addition to being able to read and write files on a MTP device, MTP properties can be retrieved and modified by the application.



The emUSB-Host MTP implementation works out of the box with most vendors' MTP device implementations. Functionality has been confirmed with a multitude of Android distributions, Windows phones and other MTP devices.

Additional Information

For more technical details about MTP and PTP follow this link.


Components required to use emUSB-Host MTP:

  • emUSB-Host MTP
  • emUSB-Host core (Included in emUSB-Host Base package)
  • emUSB-Host target driver (One driver is included in emUSB-Host PRO package)
  • Real-time operating system (embOS or other)