Re: Possible usb-core bug when hotpluging cdc-acm device

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Am Donnerstag, 12. November 2009 11:38:00 schrieb Olof Tångrot:
> Hi there.
> After boot my system look like this:
> 
> /dev/ttyACM0
> /dev/ttyACM1
> /dev/ttyACM2
> 
> Now, this is what happens:
> 
> At ~150 run serial loop back test	-> loop back works
> At ~190 remove ttyACM1 form system
> At ~199 insert usb device into system	-> enumeration success
> At ~210 run serial loop back test	-> loop back works
> At ~224 remove ttyACM1 from system
> At ~233 insert usb device into sytem	-> enumeration fails!
> 
> The events can be traced in syslog as shown below:

This suggests either a low level bug or a hardware problem.
Is it repeatable?

	Regards
		Oliver
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