[andyhenry@ahmb101 ~]$ dmesg | grep usb [ 3.560884] usbcore: registered new interface driver usbfs [ 3.560891] usbcore: registered new interface driver hub [ 3.560952] usbcore: registered new device driver usb [ 3.879864] usb 1-1: new full-speed USB device number 2 using xhci_hcd [ 4.000006] usb 1-1: device descriptor read/64, error -71 [ 4.240304] usb 1-1: new full-speed USB device number 3 using xhci_hcd [ 4.380504] usb 1-1: device descriptor read/64, error -71 [ 4.610742] usb 1-1: new full-speed USB device number 4 using xhci_hcd [ 4.610851] usb 1-1: Device not responding to setup address. [ 4.821146] usb 1-1: Device not responding to setup address. [ 5.031298] usb 1-1: device not accepting address 4, error -71 [ 5.151620] usb 1-1: new full-speed USB device number 5 using xhci_hcd [ 5.151743] usb 1-1: Device not responding to setup address. [ 5.361954] usb 1-1: Device not responding to setup address. [ 5.571904] usb 1-1: device not accepting address 5, error -71 [ 5.692110] usb 3-1: new high-speed USB device number 2 using ehci-pci [ 5.962427] usb 4-1: new high-speed USB device number 2 using ehci-pci [ 6.192804] usb 3-1.1: new high-speed USB device number 3 using ehci-pci [ 6.365464] input: FaceTime HD Camera (Built-in ) as /devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.1/3-1.1:1.0/input/input11 [ 6.365503] usbcore: registered new interface driver uvcvideo [ 6.403064] usb 4-1.8: new high-speed USB device number 3 using ehci-pci [ 6.803534] usb 4-1.8.1: new full-speed USB device number 4 using ehci-pci [ 6.993792] usb 4-1.8.2: new full-speed USB device number 5 using ehci-pci [ 7.131425] input: bcm5974 as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.2/4-1.8.2:1.2/input/input12 [ 7.131508] usbcore: registered new interface driver bcm5974 [ 7.141745] usbcore: registered new interface driver usbhid [ 7.141748] usbhid: USB HID core driver [ 7.144384] input: Apple Inc. Apple Internal Keyboard / Trackpad as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.2/4-1.8.2:1.0/0003:05AC:0262.0001/input/input13 [ 7.144496] apple 0003:05AC:0262.0001: input,hidraw0: USB HID v1.11 Keyboard [Apple Inc. Apple Internal Keyboard / Trackpad] on usb-0000:00:1d.0-1.8.2/input0 [ 7.194071] usb 4-1.8.1.1: new full-speed USB device number 6 using ehci-pci [ 7.230265] apple 0003:05AC:0262.0002: hidraw1: USB HID v1.11 Device [Apple Inc. Apple Internal Keyboard / Trackpad] on usb-0000:00:1d.0-1.8.2/input1 [ 7.384490] usb 4-1.8.1.2: new full-speed USB device number 7 using ehci-pci [ 7.574695] usb 4-1.8.1.3: new full-speed USB device number 8 using ehci-pci [ 7.695435] input: HID 05ac:820a as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.1/4-1.8.1.1/4-1.8.1.1:1.0/0003:05AC:820A.0003/input/input14 [ 7.695543] hid-generic 0003:05AC:820A.0003: input,hidraw2: USB HID v1.11 Keyboard [HID 05ac:820a] on usb-0000:00:1d.0-1.8.1.1/input0 [ 7.695627] input: HID 05ac:820b as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.1/4-1.8.1.2/4-1.8.1.2:1.0/0003:05AC:820B.0004/input/input15 [ 7.695695] hid-generic 0003:05AC:820B.0004: input,hidraw3: USB HID v1.11 Mouse [HID 05ac:820b] on usb-0000:00:1d.0-1.8.1.2/input0 [ 8.723664] usbcore: registered new interface driver btusb [ 8.843132] usb 4-1.8.1.1: USB disconnect, device number 6 [ 9.197024] usb 4-1.8.1.2: USB disconnect, device number 7 [ 53.110912] usb 1-1: new low-speed USB device number 6 using xhci_hcd [ 53.254525] usb 1-1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes [ 53.256274] input: PixArt USB Optical Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:093A:2510.0005/input/input16 [ 53.256461] hid-generic 0003:093A:2510.0005: input,hidraw2: USB HID v1.11 Mouse [PixArt USB Optical Mouse] on usb-0000:00:14.0-1/input0