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.