Index of /sys/class/tty/tty21/subsystem/ttyS0/device/driver/00:00/power/

../
autosuspend_delay_ms                               11-Aug-2026 04:52                4096
control                                            11-Aug-2026 04:52                4096
runtime_active_time                                11-Aug-2026 04:52                4096
runtime_status                                     11-Aug-2026 04:52                4096
runtime_suspended_time                             11-Aug-2026 04:51                4096