• Table of Contents
• Pushing changes to libusb mainline
• Regular commits (i.e. a patch you've created from scratch against your repo)
• Amend of a commit (or: oops, I screwed up my previous commit and need to change it before a push)
• Merge of a commit that you didn't create, such as a pull request from github or a patch you got off the mailing list.
• RC/Release work
• Updating the Wiki content