Add a project on exist AOSP repository

Add a project on exist AOSP repository (ex: realtek android driver)

• Make a git repository & add/commit files

    cd /hardware/realtek/wlan
    git init
    git add *
    git commit -m "1st release" -a

• Create .repo/projects

    cd .git
    mkdir -p ../../../../.repo/projects/hardware/realtek/wlan.git
    cp -a * ../../../../.repo/projects/hardware/realtek/wlan.git/

• Remove local git files & make link to .repo/projects

    rm -rf branches/ config description hooks/ info/ logs/ objects/ refs/
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/branches .
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/config .
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/description .
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/hooks .
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/info .
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/logs .
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/objects .
    ln -s ../../../../.repo/projects/hardware/realtek/wlan.git/refs .

• Edit project.list and manifest.xml

    vi .repo/project.list
- add
 hardware/realtek/wlan
    vi .repo/manifest.xml 
- add