RE: [gentoo-user] Intermittent USB device failures

[Mike Edenfield]

(BTW: I'm terribly sorry for the horrid formatting and duplicate mails; I'm stuck using Outlook until I get this resolved)

> From: Volker Armin Hemmann [mailto:volkerarmin@××××××××××.com]
> Sent: Wednesday, August 20, 2014 12:55 PM
>
> Am 20.08.2014 um 02:28 schrieb Mike Edenfield:
> >> From: Volker Armin Hemmann [mailto:volkerarmin@××××××××××.com]
> >> Sent: Monday, August 18, 2014 8:01 PM
> >>
> >> Am 17.08.2014 um 12:33 schrieb Mick:
> >>> On Sunday 17 Aug 2014 02:56:58 Mike Edenfield wrote:
> >>>
> >>>> If I try to do the same thing after the mouse has locked up, modprobe
> >>>> stalls trying to unload the first module:
> >>>>
> >>>> wombat kutulu # modprobe -r -v ohci_pci
> >>>> rmmod ohci_pci
> >>>>
> >>>> wombat kutulu # dmesg
> >>>> [38091.627389] ohci-pci 0000:00:0b.0: remove, state 1 [38091.627400] usb usb2: USB disconnect, device number 1
> >>>>

> >>> Do you need ohci-pci?  Have you tried running a kernel without it and
> >>> check if your hardware still works as intended?

> >> I would try that too,,,

> > I booted a kernel without ohci-pci and no, it doesn't quite work, though I'm
> > pretty confused by it. With OHCI removed from my kernel, neither my
> > mouse nor my keyboard register as attached, but it doesn't seem to matter
> > which ports I put them in. I have 6 USB ports, 2 pair on the motherboard and
> > a third pair in the front of the case, and I expected that the back four would
> > be OCHI and the front two EHCI (or something similr), but they don't seem to
> > follow that pattern. Anywhere I plug my flash drive or camera in, it gets
> > routed through the ECHI controller, while anywhere I plug my keyboard or
> > mouse in gets routed through the OHCI controller. For example, I have my
> > keyword and a flash drive plugged into the two front-mounted ports, and
> > when I boot, I get this:

> > Is that normal?
 
> well, today almost all usb controllers 'decide' what to use depending on
> the device plugged in. There are no dedicated 1.1 or 2.0 ports.
>
> And yes, not able to see the devices without ohci might be the norm.
>
> Do you have the problems with all ports?

Yes, I've tried the mouse and keyboard in all 6 ports and haven’t seen any significant change in behavior.

--Mike