Re: Please teach me how

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On Fri, 14 Oct 2011, gene heskett wrote:

> usb 2-10: new full speed USB device using ohci_hcd and address 7
> usb 2-10: New USB device found, idVendor=03eb, idProduct=3301
> usb 2-10: New USB device strings: Mfr=0, Product=2, SerialNumber=0
> usb 2-10: Product: Standard USB Hub
> hub 2-10:1.0: USB hub found
> hub 2-10:1.0: 4 ports detected
> hub 2-10:1.0: config failed, can't get hub status (err -71)
> 
> Then I tried the echo trick:
> [root@coyote host]# echo 0 >/sys/bus/usb/devices/2-10/bConfigurationValue
> -bash: echo: write error: Protocol error
> [root@coyote host]# echo 1 >/sys/bus/usb/devices/2-10/bConfigurationValue
> -bash: echo: write error: Protocol error
> 
> ????

Those errors indicate the computer wasn't able to communicate with the 
hub at all.

Alan Stern

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