我手头有一个kinect摄像头，插入DM8168的usb口后，串口得到输出：
usb 1-1: new high speed USB device using musb-hdrc and address 2
usb 1-1: New USB device found, idVendor=0409, idProduct=005a
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 3 ports detected
usb 1-1.2: new full speed USB device using musb-hdrc and address 3
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: new full speed USB device using musb-hdrc and address 4
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: new full speed USB device using musb-hdrc and address 5
usb 1-1.2: device not accepting address 5, error -71
usb 1-1.2: new full speed USB device using musb-hdrc and address 6
usb 1-1.2: device not accepting address 6, error -71
hub 1-1:1.0: unable to enumerate USB device on port 2
usb 1-1: reset high speed USB device using musb-hdrc and address 2
usb 1-1.2: new full speed USB device using musb-hdrc and address 7
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: new full speed USB device using musb-hdrc and address 8
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: device descriptor read/64, error -71
usb 1-1.2: new full speed USB device using musb-hdrc and address 9
usb 1-1.2: device not accepting address 9, error -71
usb 1-1.2: new full speed USB device using musb-hdrc and address 10
我想确认下，这是什么原因引起的呢？
急，请知道原因的回复一下呢，非常感谢！
