Comment 26 for bug 1099947

Revision history for this message
Simon Déziel (sdeziel) wrote : Re: [Bug 1099947] Re: driver unable to connect to CyberPower UPS using usbhid-ups driver

On 2017-08-28 09:01 AM, ChristianEhrhardt wrote:
> Hi Simon,
> while we might pursue the reddest herring ever since you have the testbed around you might run in one console. So lets help each other to not over-engineer this, but OTOH it might be interesting to see why it is fixed.
>
> # unplug the device
> $ udevadm monitor --subsystem-match=usb
> # plug the device

$ udevadm monitor --subsystem-match=usb
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[72.829167] add /devices/pci0000:00/0000:00:1a.1/usb4/4-2 (usb)
KERNEL[72.831253] add
/devices/pci0000:00/0000:00:1a.1/usb4/4-2/4-2:1.0 (usb)
UDEV [73.022997] add /devices/pci0000:00/0000:00:1a.1/usb4/4-2 (usb)
UDEV [73.031355] add
/devices/pci0000:00/0000:00:1a.1/usb4/4-2/4-2:1.0 (usb)

> and install from the trusty
> release ISO (no updates) including nut-server. Then pass through the usb
> device and see if it is working there as well.

I'm downloading 14.04.0 [1] to install it on my physical test box and
will report how it goes without updates.

[1]
http://old-releases.ubuntu.com/releases/trusty/ubuntu-14.04-server-amd64+mac.iso