Jan  2 21:04:01 calculate kernel: usb 1-2: new full-speed USB device number 40 using xhci_hcd
Jan  2 21:04:01 calculate kernel: usb 1-2: New USB device found, idVendor=0e8d, idProduct=0002, bcdDevice= 1.00
Jan  2 21:04:01 calculate kernel: usb 1-2: New USB device strings: Mfr=2, Product=3, SerialNumber=4
Jan  2 21:04:01 calculate kernel: usb 1-2: Product: MT6250 
Jan  2 21:04:01 calculate kernel: usb 1-2: Manufacturer: MediaTek Inc
Jan  2 21:04:01 calculate kernel: usb 1-2: SerialNumber: 68798210969888f
Jan  2 21:04:01 calculate kernel: usb-storage 1-2:1.0: USB Mass Storage device detected
Jan  2 21:04:01 calculate kernel: scsi host5: usb-storage 1-2:1.0
Jan  2 21:04:02 calculate mtp-probe[15126]: checking bus 1, device 40: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2"
Jan  2 21:04:02 calculate mtp-probe[15126]: bus: 1, device: 40 was not an MTP device
Jan  2 21:04:02 calculate mtp-probe[15147]: checking bus 1, device 40: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2"
Jan  2 21:04:02 calculate mtp-probe[15147]: bus: 1, device: 40 was not an MTP device
Jan  2 21:04:02 calculate usb_modeswitch[15163]: switch device 0e8d:0002 on 001/040