sys/devices/virtual/tty/tty21/subsystem/tty/subsystem/ttyS1/subsystem/ttyS0/device/_[ Not.Writable ]

Name	SiizeFile	Prmisn	Modify
driver	-	drwxr-xr-x	# Delete Chmod Rename
firmware_node	-	drwxr-xr-x	# Delete Chmod Rename
power	-	drwxr-xr-x	# Delete Chmod Rename
subsystem	-	drwxr-xr-x	# Delete Chmod Rename
tty	-	drwxr-xr-x	# Delete Chmod Rename
id	4 KB	-r--r--r--	# Delete Chmod Rename Edit
options	4 KB	-r--r--r--	# Delete Chmod Rename Edit
resources	4 KB	-rw-r--r--	# Delete Chmod Rename Edit
uevent	4 KB	-rw-r--r--	# Delete Chmod Rename Edit