[Nut-upsuser] USB device descriptor read error with Eaton 5E UPS
Matthew Stapleton
matthew4196 at gmail.com
Mon Oct 12 01:14:31 UTC 2015
I am also having this problem on a Asus B85M-G motherboard connected to a
back usb2 port. It works for a few days, and then there is a usb
disconnect and reconnect, and that's when I get the "broken pipe" error.
Have tried on Gentoo Linux kernels: 3.14.49-hardened and 4.1.6-hardened.
Using nut 2.7.2, libusb 1.0.19, and libusb-compat 0.1.5. Once this happens
the only way to fix it seems to be to either power cycle the ups or
sometimes rebooting the computer a few times might fix it. I did notice it
is using the xhci driver even for the motherboard's usb2 ports though and
the usb doesn't disconnect if I unbind the two usb2 pci devices from the
ehci driver, only when I unbind the single usb3 pci device from the xhci
driver.
Thanks
Matthew Stapleton
matthew4196 at gmail.com
On 10 August 2014 at 16:10, Leith Bade <leith at leithalweapon.geek.nz> wrote:
> On 10 August 2014 09:05, Charles Lepple <clepple at gmail.com> wrote:
> > On Aug 7, 2014, at 7:57 AM, Leith Bade <leith at leithalweapon.geek.nz>
> wrote:
> >
> > Error -32 is EPIPE, which means that the PC didn't see a reply from the
> device during the descriptor read. I don't know that we have ever
> successfully run one of these issues to ground.
> >
>
> Considering Eaton do officially support Linux in their documentation
> for this product (as well as make their own Linux UPS client) I will
> see if they are able to fix it. Otherwise I will just have to return
> it and get another brand.
>
> Also do you know how I can log more detailed debug info from the
> Kernel for USB? Perhaps a dump of all USB data to a file somewhere may
> make it easier to see exactly what is going on.
>
> > When you plug into the non-3.0 ports, what HCD driver is it using?
> >
> I generally keep it plugged into the 2.0 ports. Here is the output
> from dmesg at boot (when it is working)
> [ 0.374422] usbcore: registered new interface driver usbfs
> [ 0.374443] usbcore: registered new interface driver hub
> [ 0.374503] usbcore: registered new device driver usb:
> ...
> [ 1.508833] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [ 1.516042] ehci-pci: EHCI PCI platform driver
> [ 1.523181] ehci-platform: EHCI generic platform driver
> [ 1.530293] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 1.537416] ohci-pci: OHCI PCI platform driver
> [ 1.544488] ohci-platform: OHCI generic platform driver
> [ 1.551537] uhci_hcd: USB Universal Host Controller Interface driver
> [ 1.558906] xhci_hcd 0000:00:14.0: xHCI Host Controller
> [ 1.565959] xhci_hcd 0000:00:14.0: new USB bus registered, assigned
> bus number 1
> [ 1.573220] xhci_hcd 0000:00:14.0: cache line size of 64 is not
> supported
> [ 1.573270] xhci_hcd 0000:00:14.0: irq 44 for MSI/MSI-X
> [ 1.573418] usb usb1: New USB device found, idVendor=1d6b,
> idProduct=0002
> [ 1.580669] usb usb1: New USB device strings: Mfr=3, Product=2,
> SerialNumber=1
> [ 1.587899] usb usb1: Product: xHCI Host Controller
> [ 1.595059] usb usb1: Manufacturer: Linux 3.13.0-32-generic xhci_hcd
> [ 1.602239] usb usb1: SerialNumber: 0000:00:14.0
> [ 1.609600] hub 1-0:1.0: USB hub found
> [ 1.616605] hub 1-0:1.0: 10 ports detected
> [ 1.629387] xhci_hcd 0000:00:14.0: xHCI Host Controller
> [ 1.636300] xhci_hcd 0000:00:14.0: new USB bus registered, assigned
> bus number 2
> [ 1.643425] usb usb2: New USB device found, idVendor=1d6b,
> idProduct=0003
> [ 1.650424] usb usb2: New USB device strings: Mfr=3, Product=2,
> SerialNumber=1
> [ 1.657393] usb usb2: Product: xHCI Host Controller
> [ 1.664350] usb usb2: Manufacturer: Linux 3.13.0-32-generic xhci_hcd
> [ 1.671278] usb usb2: SerialNumber: 0000:00:14.0
> [ 1.678293] hub 2-0:1.0: USB hub found
> [ 1.684992] hub 2-0:1.0: 2 ports detected
> ...
> [ 2.797764] usb 1-10: new low-speed USB device number 4 using xhci_hcd
> ...
> [ 3.423585] usb 1-10: New USB device found, idVendor=0463,
> idProduct=ffff
> [ 3.423599] usb 1-10: New USB device strings: Mfr=1, Product=2,
> SerialNumber=0
> [ 3.423604] usb 1-10: Product: 5E
> [ 3.423605] usb 1-10: Manufacturer: EATON
> [ 3.424529] usb 1-10: ep 0x81 - rounding interval to 128
> microframes, ep desc says 160 microframes
> [ 3.472025] hidraw: raw HID events driver (C) Jiri Kosina
> ...
>
> I guess that means it is using xhci_hcd. All USB ports show up as
> usb1-x (on both this motherboard and the other motherboard).
>
> Only other things of interest is that I have only ever had these
> plugged into the other USB ports - mouse, keyboard, Sierra 3G modem,
> Huawei 3G modem. On the current motherboard various 'virtual' devices
> such as mouse, keyboard, floppy, CD drive, and HDD also appear from
> the BIOS's remote control features.
>
> However when I first got these problems was with the previous
> motherboard and it would occur if nothing else was plugged in too.
>
>
> > I wouldn't recommend using a hub in production, but if you have an older
> USB hub lying around, does that help? Shorter cables are also useful,
> though low-speed USB 1.1 is pretty resilient to noise.
> >
> > Also, if you can fix it without rebooting the PC, the issue is probably
> external to the PC.
> >
>
> I will try it with a USB hub. Unfortunately I don't have a shorter
> cable currently. The one I am using is an aftermarket generic 1m USB
> 2.0 cable purchased from a local office supply store (Office Works)
> since the UPS did not come with a cable :-( This cable appears to be
> good quality as it is rather thick.
>
> >
> > Did you have a chance to check the NUT archives? I vaguely remember some
> motherboard-specific threads.
> >
>
> A bit of searching did not turn up much. Only thing I found was a
> similar error with a MGE unit a few years ago. Did not say anything
> about the motherboard.
>
> Thanks,
> Leith Bade
> leith at leithalweapon.geek.nz
>
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>
--
Matthew Stapleton
Email: matthew4196 at gmail.com
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