Eu tenho um scanner de mesa Epson Perfection 660 que funciona no meu laptop. Isso é o que aparece em /var/log/syslog
quando eu conecto:
Dec 18 15:43:57 lap kernel: [ 31.868278] usb 6-2: new full-speed USB device number 2 using uhci_hcd
Dec 18 15:43:57 lap kernel: [ 32.033506] usb 6-2: New USB device found, idVendor=04b8, idProduct=0114
Dec 18 15:43:57 lap kernel: [ 32.033514] usb 6-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Dec 18 15:43:57 lap kernel: [ 32.033519] usb 6-2: Product: EPSON Scanner
Dec 18 15:43:57 lap kernel: [ 32.033524] usb 6-2: Manufacturer: EPSON
Agora quero usar esse scanner no meu computador desktop. Eu segui as mesmas instruções, mas não funciona. O problema é que não é reconhecido como um dispositivo USB válido. Ele não aparece em lsusb
, e é isso que mostra no syslog:
Dec 18 15:31:34 desktop kernel: [ 390.193219] usb 3-14: new full-speed USB device number 18 using xhci_hcd
Dec 18 15:31:39 desktop kernel: [ 395.213900] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:39 desktop kernel: [ 395.213902] usb 3-14: can't read configurations, error -110
Dec 18 15:31:39 desktop kernel: [ 395.325902] usb 3-14: new full-speed USB device number 19 using xhci_hcd
Dec 18 15:31:44 desktop kernel: [ 400.346570] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:44 desktop kernel: [ 400.346572] usb 3-14: can't read configurations, error -110
Dec 18 15:31:45 desktop kernel: [ 400.458648] usb 3-14: new full-speed USB device number 20 using xhci_hcd
Dec 18 15:31:50 desktop kernel: [ 405.479280] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:50 desktop kernel: [ 405.479282] usb 3-14: can't read configurations, error -110
Dec 18 15:31:50 desktop kernel: [ 405.591352] usb 3-14: new full-speed USB device number 21 using xhci_hcd
Dec 18 15:31:55 desktop kernel: [ 410.611960] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:55 desktop kernel: [ 410.611962] usb 3-14: can't read configurations, error -110
Dec 18 15:31:55 desktop kernel: [ 410.611973] hub 3-0:1.0: unable to enumerate USB device on port 14
À primeira vista, parece que o laptop usa UHCI, enquanto o desktop usa XHCI. Ambos os sistemas usam o Linux Mint 16, kernel 3.11.0-12 x86_64. O comportamento é o mesmo, independentemente da porta usb usada.
O que posso fazer?
Tags usb scanner linux-mint