## Additionnal informations To test character device, your need create the device. Step 1: Get major number of your module device ```bash cat /proc/devices | grep flodev ``` Step 2: Create device (as root) ```bash mknod /dev/[wanted name] -c 0 ``` Exemple (as root): ```bash cat /proc/devices | grep flodev # => 236 flodev mknod /dev/flodev0 c 236 0 echo "Salut" >> /dev/flodev0 dmesg | tail # => # flodev - Ouverture du périphérique # flodev - Message reçu: Salut # flodev - Fermeture du périphérique rm /dev/flodev0 ```