Required equipment:
-wiimote
-bluetooth usb dongle or build-in bluetooth module on motherboard 

For KDE4 users:

Download  this this tar file, and read instructions. The PC must be connected on network and configured (for update)

-in a terminal untar the file 
>tar -xf wii-install.tar

-lauch the script as root 
>cd wiimote-install
>su
>sh wii-install-root.sh
>init 6

-the system will restart, enjoy ! 

MANUAL INSTALLATION 

1) installation of components 
a)  usb dongle 
urpmi kdebluetooth
b) wiimote support 
urpmi cwiid

2) test the wiimote
# en root
modprobe uinput
service bluetooth start
wminput

3) keymap of wiimote
the definitions are in this file 
/etc/cwiid/wminput/buttons
# help about buttons 
http://abstrakraft.org/cwiid/browser/cwiid/trunk/wminput/README?rev=12
for finding mac adress 
hidd --search

4) tips
for launch with particular mac adress
wminput and mac adress
ex: wminput 00:21:BD:15:6E:41
for automatic launch 
add in  /etc/modprobe.preload
uinput
add in  /etc/rc.local
wminput -w

alternative of  "rc.local"
add in this repertory  ~/.kde4/Autostart 
a file wiistart.sh  containing the command
 wminput -w (dont' forget to pass the file in executable mod with chmod +x)

5) lauch wminput in normal session mode (no root)
create the file in this repertory:/etc/udev/rules.d 
name of file: 
60.persistent-input.rules 
write in this file: 
KERNEL=="uinput", MODE="0666"

standard file with automatic installation 

Trigger: play /reprise
KEY A: pause
KEY + / -  fast / slow 
HOME : menu

direction arrows : navigation in menu
 1 and 2: constellation drawing and constellation art 

The gyroscopic system of the wiimote shouldn't be used bcause of the difficulty to master the movement in this conditions. we propose to use it as a minimalistic but very ergonomic remote ! . Success guaranteed  with young audiences !

Hard disk saturation by temporary files: 
When the USB bluetooth dongle isn't plugged in and it uses the configuration "Automatic" as described. In 1 or 2 boots, it leads to a disk full at 100%!
In this case, boot in failsafe mode:
cd / tmp
rm -rf *
Then reboot normally (with the key bluetooth). 
Morality: You must heve the bluetooth dongle connected permanently.