[Nut-upsuser] distinguishing identical multiple usbhid-ups devices

Arjen de Korte nut+users at de-korte.org
Tue Mar 18 18:50:43 UTC 2008

Charles Lepple wrote:

>>  usbhid-ups is capable to distinguish devices from the Bus
>>  they are connected to, but as all are at the same hub the bus
>>  is the same. I'd like if usbhid-ups could distinguish them from
>>  the hubbed port they are plugged in.
> I forget how the bus numbering goes, but what if you added in another
> hub between certain devices?

That won't help. All USB devices that are connected to the same root 
device, will be enumerated on the same bus. No matter how many hubs you 
add. :-(

> You still are not guaranteed that they will be enumerated in the same
> order every time, but at least the device closest to the motherboard
> stands a chance of being enumerated first.

And it also wouldn't help if one device is detached (this sometimes 
happens for no apparent reason) and is enumerated again.

Best regards, Arjen

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