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SubjectRe: USB EHCI Problem with Low Speed Devices on kernel 2.6.11+
Dominik Wezel wrote:
> Problem
> =======
> When turning on the laptop and during POST and GrUB loading, all ports
> on the hub are enabled. During the USB initialization phase, when the
> hub is detected, shortly all ports become disabled, then turn on again
> (uhci_hcd detects the lo-speed ports). Upon initialization of ehci_hcd
> however, the ports are disconnected again (for good):

Use uhci_hcd or ehci_hcd, but never both at the same time.
ehci_hcd will work with all lo-speed ports, so uhci_hcd is then no needed.


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