Comment 3 for bug 1282785

Output from dmesg

 usb 3-1: USB disconnect, device number 4
[ 92.113491] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113498] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113528] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113533] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113538] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113568] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113573] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113607] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113612] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113650] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113655] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113690] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 92.113751] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 92.113767] option 3-1:1.0: device disconnected
[ 92.113900] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 92.113910] option 3-1:1.1: device disconnected
[ 92.113990] option1 ttyUSB2: option_instat_callback: error -108
[ 92.114072] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 92.114082] option 3-1:1.3: device disconnected
[ 92.114157] option1 ttyUSB3: option_instat_callback: error -108
[ 92.114228] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 92.114237] option 3-1:1.4: device disconnected
[ 92.114309] option1 ttyUSB4: option_instat_callback: error -108
[ 92.114372] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 92.114382] option 3-1:1.7: device disconnected
[ 96.687214] usb 3-1: new high-speed USB device number 5 using xhci_hcd
[ 96.704644] usb 3-1: config 1 has an invalid interface number: 7 but max is 4
[ 96.704656] usb 3-1: config 1 has no interface number 2
[ 96.706131] usb 3-1: New USB device found, idVendor=1199, idProduct=68a3
[ 96.706141] usb 3-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4
[ 96.706146] usb 3-1: Product: AirCard 312U
[ 96.706150] usb 3-1: Manufacturer: Sierra Wireless, Incorporated
[ 96.706155] usb 3-1: SerialNumber: 351828040090150
[ 96.707700] option 3-1:1.0: GSM modem (1-port) converter detected
[ 96.707958] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 96.708071] option 3-1:1.1: GSM modem (1-port) converter detected
[ 96.708181] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 96.708325] option 3-1:1.3: GSM modem (1-port) converter detected
[ 96.708517] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 96.708667] option 3-1:1.4: GSM modem (1-port) converter detected
[ 96.708849] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 96.708964] option 3-1:1.7: GSM modem (1-port) converter detected
[ 96.709150] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB4