> > On Sat, 6 Jan 2007 17:06:46 -0500 (EST) > > Alan Stern wrote: > > > > > On Sat, 6 Jan 2007, Mark Watson wrote: > > > > > > > I just bought a NEC USB2 PCI card, to workaround the Via khubd > > > > hangs. I'd like to disable the onboard Via USB2 controller > > > > entirely, but my bios has no such option:-( How can I tell Linux to > > > > ignore/disable the device? > > > > > > > > I'm using USB built into the kernel at present. The only option I > > > > found is nousb, but that turns everything off. I'm happy to build as > > > > modules but, at least in ehci-hcd, there seems to be no option to > > > > specify a PCI device explicitly... > > > > > > You can unbind the controller from its driver, which should end up > > > doing what you want. > > > > > > Look in /sys/bus/pci/drivers/ehci_hcd to find the device ID of your > > > controller, and write that ID to the "unbind" file in that > > > directory. For example, you might do something like this: > > > > > > # ls /sys/bus/pci/drivers/ehci_hcd > > > 0000:00:0f.3 bind module new_id unbind > > > # echo -n 0000:00:0f.3 >/sys/bus/pci/drivers/ehci_hcd/unbind > > > > > > Of course, you will have two device IDs because you've got two > > > controllers -- so be sure to select the right one.
I've been running on the new controller for a week now. There is both good news and bad news! I have had no more of these USB disconnects. However the whole box has hard locked twice so far. i.e. not able to ping, apps appear frozen, no response to KB (in X so I can't magic sysrq I think)... Could this be related to the unused broken controller? I'm going to try an upgrade to the latest stable (2.6.19.1 iirc), in case there are known freezes with 2.6.18.2. Or perhaps 2.6.16.37 might be better... Better check memtest86 still passes too. Any hints on debugging this kind of thing? Thanks, Mark ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
