this is the result of dmesg
[ 31.701285] input: b43-phy0 as /devices/virtual/input/input9
[ 31.752118] b43 ssb0:0: firmware: requesting b43/ucode5.fw
[ 31.755002] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found
[ 31.755010] b43-phy0 ERROR: You must go to http://linuxwireless.org/en/users/Dr...devicefirmware and download the latest firmware (version 4).
[ 76.394372] [drm:i915_getparam] *ERROR* Unknown parameter 6
[ 80.957641] CPU0 attaching NULL sched-domain.
[ 80.957742] CPU0 attaching NULL sched-domain.
[ 212.688102] usb 3-2: USB disconnect, address 2
[ 218.544047] usb 3-2: new full speed USB device using uhci_hcd and address 3
[ 218.720047] usb 3-2: device descriptor read/64, error -71
[ 218.944045] usb 3-2: device descriptor read/64, error -71
[ 219.216048] usb 3-2: new full speed USB device using uhci_hcd and address 4
[ 219.392042] usb 3-2: device descriptor read/64, error -71
[ 219.616059] usb 3-2: device descriptor read/64, error -71
[ 219.776087] hub 3-0:1.0: unable to enumerate USB device on port 2
[ 220.256052] hub 3-0:1.0: unable to enumerate USB device on port 2
[ 220.736046] usb 3-2: new full speed USB device using uhci_hcd and address 7
[ 221.040610] usb 3-2: configuration #1 chosen from 1 choice





this is the result of lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 007: ID 19d2:fffd
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub