Error: prism54usb: eeprom read failed!

[  136.908067] usb 5-1: new high speed USB device using ehci_hcd and address 5
[  137.041116] usb 5-1: configuration #1 chosen from 1 choice
[  137.041652] firmware: requesting isl3890usb
[  137.055835] p54: LM86 firmware
[  137.055850] p54: FW rev 2.4.3.7 - Softmac protocol 0.1
[  139.204228] prism54usb: eeprom read failed!
[  139.204272] prism54usb: probe of 5-1:1.0 failed with error -22

SOLUCIÓ:

Mirar dispositius conectats als ports USB:
$ lsusb
Bus 005 Device 010: ID 0707:ee06 Standard Microsystems Corp. EZ-Connect 802.11g Adapter
Bus 005 Device 003: ID 0ac8:c002 Z-Star Microelectronics Corp. Visual Communication Camera VGP-VCC1
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Instal·lar les utilitats per les targes sese fils prism2:

$ sudo apt-get installl linux-wlan-ng linux-wlan-ng-firmware hostap-utils 

Cargar drivers:

$ sudo insmod p80211
$ sudo modprobe prism2_usb

Comprobar que el modul estigui carregat:

$ lsmod | grep pri
prism2_usb             80260  0 
p80211                 38536  1 prism2_usb
usbcore               148848  11 prism2_usb,gspca_vc032x,gspca_main,p54usb,option,usbserial,usb_storage,libusual,ehci_hcd,uhci_hcd

Ens hauria d'apareixer el dispositiu escribint:

$ ifconfig

Si continua fallant

[ 1714.432182] prism54usb: eeprom read failed!
[ 1714.432228] prism54usb: probe of 5-1:1.0 failed with error -22

Seguiu els següents pasos:

1. Obtindre el driver per a windows
2. Executar:

   $ sudo sudo apt-get install ndiswrapper-utils-*

3. $ sudo ndiswrapper -i driver.inf
4. Mostrar drivers instal·lats:

   $ sudo ndiswrapper -l

5. Cargar al kernel el mòdul:

   $ sudo modprobe ndiswrapper

6. Mostrar drivers empaquetats:

   $ sudo ndiswrapper -m

7. Comprobar amb ifconfig per veure si es mostra l'interficie
8. Instal·lar manejador de conexions:

   $ sudo apt-get install network-manager-gnome