cat /proc/bus/usb/devices
T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 2.06
S:  Manufacturer=Linux 2.6.17-1.2139_FC5 ohci_hcd
S:  Product=OHCI Host Controller
S:  SerialNumber=0000:00:01.2
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=255ms
tail /var/log/messages
Nov 16 19:55:14 localhost kernel: usb 1-2: device not accepting address 21, erro              r -110
Nov 16 19:55:34 localhost kernel: ohci_hcd 0000:00:01.2: wakeup
Nov 16 19:55:35 localhost kernel: usb 1-2: new full speed USB device using ohci_hcd and address 22
Nov 16 19:55:35 localhost kernel: usb 1-2: device descriptor read/64, error -110
Nov 16 19:55:35 localhost kernel: usb 1-2: device descriptor read/64, error -110
Nov 16 19:55:36 localhost kernel: usb 1-2: new full speed USB device using ohci_hcd and address 23
Nov 16 19:55:35 localhost kernel: usb 1-2: device descriptor read/64, error -110
Nov 16 19:55:36 localhost kernel: usb 1-2: device descriptor read/64, error -110
Nov 16 19:55:36 localhost kernel: usb 1-2: new full speed USB device using ohci_hcd and address 24
Nov 16 19:55:36 localhost kernel: usb 1-2: device not accepting address 24, error -110
Nov 16 19:55:36 localhost kernel: usb 1-2: new full speed USB device using ohci_hcd and address 25
Nov 16 19:55:37 localhost kernel: usb 1-2: device not accepting address 25, error -110