Log connecting my Firefox OS phone with USB disck enabled

Dec  8 10:45:22 jgomez kernel: [24994.528032] usb 1-8: new high-speed USB device number 7 using ehci_hcd
Dec  8 10:45:22 jgomez mtp-probe: checking bus 1, device 7: "/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-8"
Dec  8 10:45:22 jgomez kernel: [24994.666114] scsi8 : usb-storage 1-8:1.4
Dec  8 10:45:22 jgomez mtp-probe: bus: 1, device: 7 was not an MTP device
Dec  8 10:45:23 jgomez kernel: [24995.665060] scsi 8:0:0:0: Direct-Access     Linux    File-CD Gadget   0000 PQ: 0 ANSI: 2
Dec  8 10:45:23 jgomez kernel: [24995.666537] sd 8:0:0:0: Attached scsi generic sg3 type 0
Dec  8 10:45:23 jgomez kernel: [24995.673045] sd 8:0:0:0: [sdb] Attached SCSI removable disk