我有一台 Epson Perfection 660 平板扫描仪,可以在我的笔记本电脑上使用。这是/var/log/syslog
我插入时出现的内容:
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
现在我想在我的台式计算机上使用该扫描仪。我遵循了相同的说明,但它不起作用。问题是它未被识别为有效的 USB 设备。它不会出现在 上lsusb
,这是 syslog 中显示的内容:
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
乍一看,笔记本电脑使用的是 UHCI,而台式机使用的是 XHCI。两个系统都使用 Linux Mint 16,内核 3.11.0-12 x86_64。无论使用哪个 USB 端口,行为都是相同的。
我能做些什么?