Manuel Ribeiro

I apologize if anyone has already asked this but I didn't take time search on this matter. I'm on 10.10.2 and I'm having trouble with my usb ports in OSX. two of my three usb ports don't work I can't understand why. if anyone  could help me please  

thank you for your help it started working all of a sudden

You have to enable it at system preferences>trackpad

I have it enabled I don't know why it isn't working

hello can somebody help me I have followed the  guide but I can't use the two finger scrolling, every multi finger gesture works except the two finger scrolling. I've already tried the last kext's for elantouchpad