#1 2008-06-18 21:15:34
外接USB HUB後,再接USB印表機,有人測試成功嗎?
因為2個USB埠真的不夠用,所以我目前主機的1個埠接4埠的USB HUB,再接1支2G隨身碟與1顆外接320G硬碟(啟用SCSI-STOP省電模式),USB HUB還剩2個埠;主機另1個埠接USB印表機.
今天測試看看USB印表機可否接至USB HUB,結果失敗了,但是如果印表機先接在USB HUB,並將印表機電源打開,再TELNET進主機rmmod printer後,下reboot重開機後,就可以捉到印表機,且可正常使用,
Bus 003 Device 001: ID 0000:0000
Bus 003 Device 002: ID 058f:6254 Alcor Micro Corp.
Bus 003 Device 003: ID 1687:0163
Bus 003 Device 004: ID 04fc:0c15 Sunplus Technology Co., Ltd
Bus 003 Device 006: ID 04b8:0005 Seiko Epson Corp. Stylus Printer
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
若再將印表機電源再關閉,就又不行了,lsusb也看不到裝置.
log錯誤訊息如下:
Jun 18 21:11:15 kernel: hub.c: new USB device 01:03.2-1.3, assigned address 7
Jun 18 21:11:15 kernel: usb.c: not enough configurations
Jun 18 21:11:15 kernel: usb.c: unable to get device 7 configuration (error=-22)
Jun 18 21:11:15 kernel: hub.c: new USB device 01:03.2-1.3, assigned address 8
Jun 18 21:11:15 kernel: usb.c: not enough configurations
Jun 18 21:11:15 kernel: usb.c: unable to get device 8 configuration (error=-22)
希望有興趣的人能一起研究,謝謝!
最後修改: ardayang (2008-06-18 21:17:21)
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