I've tried pluging in different stuff but nothing happens.
Here is dmesg from booting up with grep usb.
[ 0.000000] Kernel command line: root=PARTUUID=efca4260-02 console=ttyO2,115200n8 console=tty0 vram=12M omapfb.vram=0:8M,1:4M omapfb.rotate_type=0 omapdss.def_disp=lcd rootwait...