ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd 0000:00:02.0: OHCI Host Controller
ohci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:02.0: irq 18, io mem 0xd3104000
ehci_hcd 0000:00:02.1: EHCI Host Controller
ehci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 2
ehci_hcd 0000:00:02.1: debug port 1
ehci_hcd 0000:00:02.1: irq 19, io mem 0xfeb00000
ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb 2-1: new high speed USB device using ehci_hcd and address 2
usb 1-2: new low speed USB device using ohci_hcd and address 2