Am Dienstag, 25. Oktober 2005 20:22 schrieb Mike King:
> Usb Gurus,
>
> I am working on a biometric device (fingerprint reader) for Linux. This
> device has 2 configs and I need to use the 2nd config. On initial connect
> to the system usb core selects config #1 and my driver claims the interface.
> I can
>
> cat bConfigurationValue
>
> and see the response of '1' properly.
>
> But, I then do the
>
> echo '2' >/sys/bus/usb/devices/2-2/bConfigurationValue
>
> and when I read the bConfigurationValue it is null. It is not 0 or 1 or 2.
> And my driver is unbound and probe is not called again. Like the device
> is no longer present.
>
> I am running 2.6.9.
>
> Any clues what is happening ? Any ideas on how I can select config #2.
What is the descriptor of config #2?
Regards
Oliver
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