โ Vแป Kanban OS
๐
/
/
proc
/
42
/
root
/
sys
/
dev
/
char
/
4:6
/
subsystem
/
ttyS16
/
device
/
driver
/
serial8250:0.20
/
tty
๐
/sys/devices/platform/serial8250/serial8250:0/serial8250:0.20/tty
๐
ttyS20