Hi All, One stupid question... I Try to compilate your example of bluetooth code but I have a problem: (I using Ret HAT 9 with blueZ, the module of bluetooth works perfect). Well when I try to compilate the coder with the GCC (make command), the GCC donīt found the Can you comment the correct configurate to compilate this? I am sure that the problem is for my configuration. (The BlueZ includes are in my machine in /usr/scr/linux-2.4.20-31.9/include/net/bluetooth) Any idea? I sure that is a stupid configuration. But I havenīt more experience in linux. Thanks in advanced. Regards, Sir Graham.