3 Direct modification and partial transfer features.

2.5 The spec knows a fixed set of defined file formats.

2.4 Drivers know a fixed set of supported devices.

2.3 Transparency to MTP-unaware software.

2.1 File oriented instead of block oriented protocol.

Since then MTP is an official extension to PTP and shares the same class code. The USB Implementers Forum device working group standardised MTP as a full-fledged Universal Serial Bus (USB) device class in May 2008. Microsoft has also made available an MTP Porting Kit for older versions of Windows back to Windows 98. Windows XP requires Windows Media Player 10 or higher later Windows versions have built-in support. Versions of the Microsoft Windows operating system from Windows XP SP2 support MTP. MTP is part of the 'Windows Media' framework and thus closely related to Windows Media Player. In 2011, it became the standard method to transfer files from/to Android. MTP is a key part of WMDRM10-PD, a digital rights management (DRM) service for the Windows Media platform. Whereas PTP was designed for downloading photographs from digital cameras, Media Transfer Protocol allows the transfer of music files on digital audio players and media files on portable media players, as well as personal information on personal digital assistants.

The Media Transfer Protocol ( MTP) is an extension to the Picture Transfer Protocol (PTP) communications protocol that allows media files to be transferred automatically to and from portable devices.

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Mtp usb device