/var/log/kernel/current with ehci_hcd - 64 bit

Jul  6 07:27:01 [kernel] usb 1-6: USB disconnect, address 6 
Jul  6 07:27:10 [kernel] ohci_hcd 0000:00:02.0: remove, state 1 
Jul  6 07:27:10 [kernel] ohci_hcd 0000:00:02.0: USB bus 1 deregistered 
Jul  6 07:27:14 [kernel] ACPI: PCI Interrupt 0000:00:02.1[B] -> Link [APCL] -> GSI 21 (level, low) -> IRQ 193 
Jul  6 07:27:14 [kernel] ehci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 1 
Jul  6 07:27:14 [kernel] hub 1-0:1.0: USB hub found 
Jul  6 07:27:34 [kernel] usb 1-6: new high speed USB device using ehci_hcd and address 2 
Jul  6 07:27:39 [kernel] usb 1-6: unable to read config index 0 descriptor/all 
Jul  6 07:27:39 [kernel] usb 1-6: new high speed USB device using ehci_hcd and address 3 
Jul  6 07:27:45 [kernel] usb 1-6: unable to read config index 0 descriptor/start 
Jul  6 07:27:45 [kernel] usb 1-6: new high speed USB device using ehci_hcd and address 4 
Jul  6 07:27:50 [kernel] usb 1-6: device descriptor read/all, error -110 
Jul  6 07:27:50 [kernel] usb 1-6: new high speed USB device using ehci_hcd and address 5 
Jul  6 07:27:55 [kernel] usb 1-6: device descriptor read/8, error -110 
Jul  6 07:28:00 [kernel] usb 1-6: unable to read config index 0 descriptor/start