usb 1-1.4: 100mA over 100mA budget!

pl2303 1-1.3:1.0: PL-2303 converter detected
usb 1-1.3: PL-2303 converter now attached to ttyUSB0
usb 1-1.4: new full speed USB device using uhci_hcd and address 13
usb 1-1: USB disconnect, address 11
usb 1-1.3: USB disconnect, address 12
PL-2303 ttyUSB0: PL-2303 converter now disconnected from ttyUSB0
pl2303 1-1.3:1.0: device disconnected
usb 1-1.4: USB disconnect, address 13
usb 1-1: new full speed USB device using uhci_hcd and address 14
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 4 ports detected
usb 1-1.3: new full speed USB device using uhci_hcd and address 15
pl2303 1-1.3:1.0: PL-2303 converter detected
usb 1-1.3: PL-2303 converter now attached to ttyUSB0
usb 1-1.4: new full speed USB device using uhci_hcd and address 16
usb 1-1.4: 100mA over 100mA budget!

Вот уже довольно долго замечаю такую дрянь, что это может быть
и как с ней бороться?! Как я понимаю ему питания не хватает...

Заранее спасибо!!!