bbxyliyang08 发表于 2012-5-29 17:09:25

usb host无法识别usb外设

当我插入usb外设时,系统提示有检测到外设了,但是无法正常挂载usb外设。下面是插入usb外设时,系统的打印:
usb 1-1: new high speed USB device using musb_hdrc and address 5
usb 1-1: device descriptor read/64, error -19
usb 1-1: device not accepting address 5, error -19
hub 1-0:1.0: unable to enumerate USB device on port 1
大伙帮忙分析分析?谢谢……
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