MTP Tools • Christian Tietze

A collection of tools for working with MTP (Media Transfer Protocol) devices on macOS, primarily developed for use with the Supernote e-ink tablet.

Projects

swift-mtp: Swift wrapper around libmtp. Provides synchronous and async APIs for device discovery, file listing, upload, download, rename, move, and delete.
mtpx: Command-line tool for MTP file transfers, built on swift-mtp.
mtp.el: Emacs package to access MTP devices via Tramp. Browse, download, upload, rename, and delete files from within Emacs.
mtp-app (WIP): macOS desktop application for MTP device management, built on swift-mtp.

Reference

libmtp: The underlying C library for MTP device communication.

Posts on the topic

Feb 28 2026

Media Transfer Protocol Tools

I want to get books on my Supernote and notes off it, so in my desperation I began to write scripts and make tools to help.

Feb 27 2026

Emacs Complete: Feedback Loops in Emacs, Feedback Loops in Computing

If it is representable as text, it can be moved into Emacs. And if Emacs renders as text, it can be moved into other processes to interpret the result, like snapshot tests, e.g. for automated regression testing. The loop is fully closed.