無印Pixelちゃん、USBポート生きてる？
kernel: usb 5-1: new high-speed USB device number 3 using xhci_hcd
kernel: usb 5-1: New USB device found, idVendor=05c6, idProduct=9008, bcdDevice= 0.00
kernel: usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
kernel: usb 5-1: Product: QUSB__BULK
kernel: usb 5-1: Manufacturer: Qualcomm CDMA Technologies MSM
kernel: usbcore: registered new interface driver usbserial_generic
kernel: usbserial: USB Serial support registered for generic
kernel: usbcore: registered new interface driver qcserial
kernel: usbserial: USB Serial support registered for Qualcomm USB modem
kernel: qcserial 5-1:1.0: Qualcomm USB modem converter detected
kernel: usb 5-1: Qualcomm USB modem converter now attached to ttyUSB0