iTunes not recognizing iPhone 5S

Hi

I have a 13-inch 2010 MacBook Pro, on which I just clean installed Yosemite (a week ago). First, I restored my iPhone 5S (sinced I cleaned up my laptop). That worked fine, put all my apps and photos and everything back in.

But now, when I tried to put some music in it, I connected it to the computer and it doesn't show up on iTunes. iPhoto detects it though.

It's not a USB port/cable problem (checked it).

Help, anyone?