[CentOS] Re: usb stopped working

Joe Pruett joey at clean.q7.com
Tue Oct 17 14:46:26 UTC 2006

On Mon, 16 Oct 2006, Joe Pruett wrote:

> i think that the latest kernel has broken usb on my amd box.  the modprobe 
> for ohci_hcd fails now.  i have tried up and smp.  i am going to drop back 
> a version on the kernel to see if that does fix it.  anyone else seeing 
> anything similar?
> ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
> ACPI: PCI interrupt 0000:00:02.0[A] -> GSI 22 (level, low) -> IRQ 185
> ohci_hcd 0000:00:02.0: OHCI Host Controller
> ohci_hcd 0000:00:02.0: USB HC TakeOver failed!
> ohci_hcd 0000:00:02.0: can't reset
> ohci_hcd 0000:00:02.0: init 0000:00:02.0 fail, -1
> ohci_hcd: probe of 0000:00:02.0 failed with error -1

it turned out to be legacy usb support in my bios.  i had enabled that 
recently to get grub to talk to the usb keyboard, but with that enabled 
the kernel gets confused when trying to initialize the usb.  i'll have to 
investigate usb support for grub or usb boot options to undo whatever the 
bios legacy support is doing.  any pointers would be great.

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