Hi John,

Here a first draft design doc. It is based in part on the Fastboot implementation in the rowboat git repo (pointer below).

Thanks for this piece of documentation. Itcertainly helped me understand that the "boot" part in fastboot is kind of a misnomer, right?

Again it shows that a bad description can lead thoughts astray....

[...]

Purpose

Mainline support for Android Fastboot would be useful. Arguing the merits of Fastboot vs DFU is not in the scope of this document. This document is to discuss design goals/requirements of an implementation of Fastboot in U-Boot.

So in essence you say that fastboot is an "alternative" implementation of the "idea" behind DFU? Or is DFU (functionally) a subset of fastboot? It may be worth extending on that aspect so that people knowing DFU can "hook into" the discussion.

[...]

Questions

Should a Fastboot host program be included in the U-Boot source?

I would certainly welcome a "reference" implementation for a GNU/Linux host. Hopefully this will prevent multiple works later on. Maybe even writing a small library and having a simple command line wrapper would be good (like flat device tree and libfdt).

Best wishes Detlev