Need help editing io.c to get ID of Classic Controller

[OuKKaN]

I followed a guide to edit io.c adding this code printf("WIIUSE EXP_ID: %x\n",id); above switch id in case 3 to get the id of extensions, i did it, then compiled libogc, and created a hello world using the template devkitpro includes. The hello world worked like a charm, but when i plug in the classic controller it says the id is 0, just to test i plugged in the nunchuk and it worked and the id was a4200000.
Do i have to add or edit something else?, i have tested a lot of already compiled emulators with supposed compatibily with 3rd party classic controllers but they don't work for me.

Please help me.