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sys
class
tty
ttyr7
subsystem
ptyaa
subsystem
ptyd8
subsystem
ttyS1
device
subsystem
devices
0000:00:00.0
0000:00:02.0
0000:00:1a.0
0000:00:1c.0
0000:00:1c.2
0000:00:1e.0
0000:00:1e.4
0000:00:1f.0
0000:00:1f.3
0000:00:13.0
0000:00:14.0
0000:01:00.0
0000:02:00.0