dmesg (7)

[11901.437243] usb 2-2: USB disconnect, device number 80
[11901.437379] rndis_host 2-2:1.0 enp0s20u2: unregister 'rndis_host' usb-0000:00:14.0-2, RNDIS device
[11929.199513] usb 2-2: new high-speed USB device number 81 using xhci_hcd
[11929.371747] usb 2-2: New USB device found, idVendor=22b8, idProduct=2e80
[11929.371751] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[11929.371753] usb 2-2: Product: Fastboot falcon S
[11929.371754] usb 2-2: Manufacturer: Motorola Inc.
[11929.371756] usb 2-2: SerialNumber: TA9330EQGU
[11939.320266] usb 2-2: USB disconnect, device number 81
[11947.887235] usb 2-2: new high-speed USB device number 82 using xhci_hcd
[11948.052395] usb 2-2: New USB device found, idVendor=18d1, idProduct=d001
[11948.052399] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[11948.052400] usb 2-2: Product: init-debug in real rootfs
[11948.052402] usb 2-2: Manufacturer: Mer Boat Loader
[11948.052403] usb 2-2: SerialNumber: Mer Debug setting up (DONE_SWITCH=yes)
[11948.054236] rndis_host 2-2:1.0 usb0: register 'rndis_host' at usb-0000:00:14.0-2, RNDIS device, a6:c2:c4:9d:16:9e
[11949.845599] SFW2-INext-DROP-DEFLT IN=enp0s20u2 OUT= MAC= SRC=fe80:0000:0000:0000:a4c2:c4ff:fe9d:169e DST=ff02:0000:0000:0000:0000:0000:0000:00fb LEN=325 TC=0 HOPLIMIT=255 FLOWLBL=0 PROTO=UDP SPT=5353 DPT=5353 LEN=285
[11949.873858] SFW2-INext-DROP-DEFLT IN=enp0s20u2 OUT= MAC= SRC=fe80:0000:0000:0000:a4c2:c4ff:fe9d:169e DST=ff02:0000:0000:0000:0000:0000:0000:00fb LEN=512 TC=0 HOPLIMIT=255 FLOWLBL=0 PROTO=UDP SPT=5353 DPT=5353 LEN=472
[11950.124726] SFW2-INext-DROP-DEFLT IN=enp0s20u2 OUT= MAC= SRC=fe80:0000:0000:0000:a4c2:c4ff:fe9d:169e DST=ff02:0000:0000:0000:0000:0000:0000:00fb LEN=512 TC=0 HOPLIMIT=255 FLOWLBL=0 PROTO=UDP SPT=5353 DPT=5353 LEN=472
[13290.500148] perf interrupt took too long (2502 > 2500), lowering kernel.perf_event_max_sample_rate to 50000