This stems from my problem with my mouse. Sometimes during usage my mouse will just die on me (the red laser still on). When I unplug it and replug it in, the laser doesn't come back on. Not even changing ports fixes the error.
So after some Googling I found the lsusb command to list the USB ports and what devices if any are present.
However when I run it, the terminal just stays stuck there as if it were processing something. I have to Alt+F4 just to close that window.
With this information, maybe you can deduce what's wrong with the command and even better, why the mouse freezes and shuts off for no reason.
Thanks!