[29284.259787] usb 1-2: new high-speed USB device number 29 using xhci_hcd
[29284.434642] usb 1-2: New USB device found, idVendor=10a9, idProduct=606f
[29284.434648] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[29284.434651] usb 1-2: Product: PANTECH UML295
[29284.434653] usb 1-2: Manufacturer: Pantech, Incorporated
[29284.434656] usb 1-2: SerialNumber: UML2950123456789ABCDEF
[29284.455282] usb-storage 1-2:1.0: USB Mass Storage device detected
[29284.455564] scsi host5: usb-storage 1-2:1.0
[29285.507420] scsi 5:0:0:0: CD-ROM            PANTECH  CD-ROM           0000 PQ: 0 ANSI: 2
[29285.509106] sr 5:0:0:0: [sr1] scsi3-mmc drive: 24x/24x xa/form2 caddy
[29285.509485] sr 5:0:0:0: Attached scsi CD-ROM sr1
[29285.509688] sr 5:0:0:0: Attached scsi generic sg2 type 5
[29295.411522] usb 1-2: USB disconnect, device number 29
[29295.906675] usb 1-2: new high-speed USB device number 30 using xhci_hcd
[29296.088398] usb 1-2: New USB device found, idVendor=10a9, idProduct=6064
[29296.088403] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[29296.088406] usb 1-2: Product: PANTECH UML295
[29296.088408] usb 1-2: Manufacturer: Pantech, Incorporated
[29296.088410] usb 1-2: SerialNumber: UML295597201718
[29296.110007] cdc_ether 1-2:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-2, CDC Ethernet Device, d0:57:85:69:c6:58
[29296.116879] hid-generic 0003:10A9:6064.00A1: hiddev96,hidraw0: USB HID v2.00 Device [Pantech, Incorporated PANTECH UML295] on usb-0000:00:14.0-2/input2
[29296.117766] hid-generic 0003:10A9:6064.00A2: hiddev97,hidraw1: USB HID v2.00 Device [Pantech, Incorporated PANTECH UML295] on usb-0000:00:14.0-2/input3
[29296.117996] cdc_acm 1-2:1.4: ttyACM0: USB ACM device
[29296.118467] cdc_acm 1-2:1.6: ttyACM1: USB ACM device
[29296.125672] cdc_ether 1-2:1.0 enp0s20u2: renamed from eth0
[29296.135854] IPv6: ADDRCONF(NETDEV_UP): enp0s20u2: link is not ready
[29296.135937] cdc_ether 1-2:1.0 enp0s20u2: kevent 12 may have been dropped
[29296.135943] cdc_ether 1-2:1.0 enp0s20u2: kevent 12 may have been dropped
[29296.138637] cdc_ether 1-2:1.0 enp0s20u2: kevent 12 may have been dropped
[29309.102735] cdc_ether 1-2:1.0 enp0s20u2: kevent 12 may have been dropped
[29314.026843] usb 1-2: USB disconnect, device number 30
[29314.026916] cdc_ether 1-2:1.0 enp0s20u2: unregister 'cdc_ether' usb-0000:00:14.0-2, CDC Ethernet Device
[29314.046661] cdc_acm 1-2:1.6: failed to set dtr/rts