[Nut-upsuser] USBDEVFS_CONTROL failed cmd usbhid-ups

[Thomas Gutzler]

Hi,

I keep getting the following messages (or similar) in my syslog:
Nov 23 11:38:08 io kernel: [763936.921566] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 5 ret -110
Nov 23 11:38:08 io kernel: [763936.972569] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 5 ret -75
Nov 23 11:38:08 io kernel: [763936.976568] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 2 ret -71
Nov 23 11:38:08 io kernel: [763936.980565] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 2 ret -71
Nov 23 11:38:08 io kernel: [763936.984567] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 2 ret -71
Nov 23 11:38:08 io kernel: [763936.988564] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 2 ret -71
Nov 23 11:38:08 io kernel: [763937.038568] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 5 ret -71
Nov 23 11:38:08 io kernel: [763937.041275] hub 3-0:1.0: port 2 disabled
by hub (EMI?), re-enabling...
Nov 23 11:38:08 io kernel: [763937.046927] usb 3-2: usbfs:
USBDEVFS_CONTROL failed cmd usbhid-ups rqt 161 rq 1 len 5 ret -71
Nov 23 11:38:08 io kernel: [763937.046930] usb 3-2: USB disconnect,
address 101
Nov 23 11:38:08 io kernel: [763937.320015] usb 3-2: new full speed USB
device using uhci_hcd and address 102
Nov 23 11:38:08 io kernel: [763937.390033] hub 3-0:1.0: unable to
enumerate USB device on port 2
Nov 23 11:38:10 io kernel: [763938.570009] usb 3-2: new low speed USB
device using uhci_hcd and address 103
Nov 23 11:38:10 io kernel: [763939.456680] usb 3-2: configuration #1
chosen from 1 choice
Nov 23 11:38:15 io kernel: [763944.044783] generic-usb
0003:0463:FFFF.00AC: hiddev96,hidraw0: USB HID v1.00 Device [EATON
ELLIPSE] on usb-0000:00:1a.0-2/input0
Nov 23 11:38:16 io upsd[2392]: Data for UPS [new] is stale - check driver
Nov 23 11:38:18 io upsd[2392]: UPS [new] data is no longer stale

Sometimes it detects a low speed device right away without trying full
speed first. Everything else is the same.

I found a few similar posts on this list but none of them seemed to
include a suggestion how to solve it and they were all for different
UPSes. Possibly a bug in the driver?
I got around 110 'USBDEVFS_CONTROL failed cmd' within the last 8 hours
and 12 'port 2 disabled by hub (EMI?), re-enabling...'

Even though I have two very similar UPSes (both MGE Ellipse 1500 via
usb), only one of them seems to be having problems with the driver. I'm
getting the odd 'data is stale' warning for the other ups (<10 per day)
but it never caused the port to be disabled so far.
I'm pretty sure it's not EMI because both cables are right next to each
other and seem of similar quality.

I've also noticed that the average system load has gone up from 0.1 to
0.3 after connecting both UPSes and setting up nut, which I didn't
expect on a 2GHz dual core; I set pollfreq=30 for both in ups.conf.
I'm running nut 2.4.1-2ubuntu4 on a 64 bit linux 2.6.28-16 kernel.

Any suggestions?
I'm happy to provide debug information or try out patches or the 2.5 tree.

Cheers,
  Tom