# dmesg |grep -i usb
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
usbmon: debugfs is not available
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
USB Universal Host Controller Interface driver v3.0
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 5
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
usbcore: registered new interface driver usblp
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
usbcore: registered new interface driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial Driver core
drivers/usb/serial/usb-serial.c: USB Serial support registered for DeLorme Earthmate USB
drivers/usb/serial/usb-serial.c: USB Serial support registered for HID->COM RS232 Adapter
drivers/usb/serial/usb-serial.c: USB Serial support registered for Nokia CA-42 V2 Adapter
usbcore: registered new interface driver cypress
drivers/usb/serial/cypress_m8.c: Cypress USB to Serial Driver v1.09
usb 4-1: new low speed USB device using uhci_hcd and address 2
usb 4-1: configuration #1 chosen from 1 choice
cypress 4-1:1.0: DeLorme Earthmate USB converter detected
usb 4-1: DeLorme Earthmate USB converter now attached to ttyUSB0
drivers/usb/serial/cypress_m8.c: cypress_serial_control - failed to retrieve serial line settings - -110
drivers/usb/serial/cypress_m8.c: cypress_m8 suspending failing port 0 - interval might be too short
usb 4-1: cypress_read_int_callback - failed resubmitting read urb, error -22