/ sys / devices / platform / serial8250 / [ HOME SHELL ] 
Name Size Permission Action
  driver [ DIR ] drwxr-xr-x  
  power [ DIR ] drwxr-xr-x  
  subsystem [ DIR ] drwxr-xr-x  
  tty [ DIR ] drwxr-xr-x  
  driver_override 4 KB -rw-r--r--   
  modalias 4 KB -r--r--r--   
  uevent 4 KB -rw-r--r--   

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