ok sorry…. my english is bad. but i try to explain. I am new too ;)

1.
This step is what i did. i dont know if its required!

I have to controllers (ShanWan). Recalbox OS is another OS for retro gaming but you cant do much self. Retropie is different from Recalbox. So you just have to put the controllers with usb in the rpi (booted Recalbox OS) wait 10 seconds and put out the cable. Then it works in recalbox. But you want it work in retropie so pair all your controllers in recalbox.

2.
then put the extracted zip anywhere on the retropie sd card.
boot retropie, press F4 and press any key. cd to the folder where you had copied it eg. /home/pi/ps3controller/sixad/

then:

cd ~/pi/ps3controller/sixad/
make
sudo service sixad stop
sudo make install
sudo service sixad start

3.
If you skipped the first step you can now try to pair the controller. but i dont know if it works.

i hope you can understand this :D