On Thu, 15 Jan 2004, Greg KH wrote:
And also, when is a hub ever reset? :)
You've got me there. I've heard that bus-powered hubs tend to be a bit unreliable.
I suspect hubs _should_ be getting reset sometimes when a USB KVM switches its ports to a different host ... people seem to report problems there semi-regularly. It's not like the various hosts are coordinating address assignment, for example!
Maybe smarter per-port power switching would make bus power surges less of an issue ... right now the hub driver always turns on all ports at once, which probably asks for out-of-spec surges when a bus-powered hub is first turned on, and it's got several devices already connected to it.
- Dave
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