Date: Tue, 04 Nov 2014 17:45:40 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Steven Hartland <killing@multiplay.co.uk>, "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org> Subject: Re: ehci breaking Supermicro IPMI keyboard on uhci? Message-ID: <545902B4.8030001@selasky.org> In-Reply-To: <54590195.7090600@multiplay.co.uk> References: <5458184E.5020801@multiplay.co.uk> <54587E9B.50709@selasky.org> <54590195.7090600@multiplay.co.uk>
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On 11/04/14 17:40, Steven Hartland wrote: > On 04/11/2014 07:22, Hans Petter Selasky wrote: >> On 11/04/14 01:05, Steven Hartland wrote: >>> Had the problem where the Supermicro IPMI keyboard wouldn't work on some >>> machines for a while, tonight I finally had time to play with all the >>> options to see if anything would make it work. >>> >>> Turns out adding the following to loader.conf does fixes the issue: >>> hint.ehci.0.disabled="1" >>> >>> So the question is why would this help? >>> >>> Surely disabling one controller shouldn't make devices attached to >>> another work? >>> >> >> Hi, >> >> The USB device is failing to enumerate. Are you sure there is no XHCI >> controller on this device? > I did try removing xhci from my kernel config, but that had no effect, > only when I disabled the ehci controller did it correctly enumerate the > devices attached to the uhci controller. > > Attached is the outuput from pciconf -l -v in case that helps. If > there's anything else I can provide which will help just let me know. > > For reference I'm currently testing 10.1-RC4 on this box. > > Regards > Steve Maybe you can check the PCI IDs with Linux EHCI driver, if your hardware requires some special quirks? --HPS
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