hi,
i need to edit the retroarch.cfg for my controller (http://store.kitsch-bent.com/product/common-ground-dmg-button-pcb) and i followed this fellows advice on the matter – https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=122048&p=822855#p822855 , but i need to edit retroarch.cfg for it to work and i have no idea how! ive tried searching but no luck and turned to the forums for some potential help. the creator of this video (https://www.youtube.com/watch?v=cw99X6D4Kl4) sent me some file including this one (see file attachted) but i cant seem to make any sense of it! (im a noob). also i need to add shoulder buttons like that chap has done but how do i know what gpio pins to put them on! all very confusing…
any help is very much appreciated.
thanks.