Quick start: ============ Assume you already have a github account. Lets your account name is "username". First you need to fork 2 repos: - ChibiOS-gitmain - ChibiOS-contrib Make local clone of your fork # git clone git@github.com:username/ChibiOS-gitmain.git Make local branch for your feature # cd ChibiOS-gitmain # git branch feature # git checkout feature There is no code from ChibiOS-contrib in your repo. We have to connect ChibiOS-contrib as a git submodule # git submodule add git@github.com:username/ChibiOS-Contrib.git community Make branch again, but now in freshly connected submodule # cd community # git branch feature # git checkout feature Hack, hack, hack... Commit our changes and push to server. Note: you have to do this for both repositories. First ChibiOS-Contrib # cd community # git add . # git commit -m "Feature implemented" # git push origin feature:feature Now for parent repo # cd .. # git add . # git commit -m "Feature implemented" # git push origin feature:feature Now all your changes published on github. Just use web interface to send pull 2 requests: for ChibiOS-contrib and for ChibiOS-gitmain. Links: ====== https://help.github.com/ http://git-scm.com/ http://chibios.org/dokuwiki/doku.php?id=chibios:guides:style_guide