Further to my messages back in May I have at last got round to trying to get my DomU to recognise USB devices.
I am using Xen 4.6 with CentOS kernel 3.18.34-20.el7.x86_64. I have to manually make the port available before creating the DomU by issuing the command: xl pci-assignable-add 00:1a.0 otherwise nothing shows in: xl pci-assignable-list
I have added this to my .cfg file as per the May Emails: pci=['00:1a.0,rdm_policy=relaxed']
and in the DomU, which starts fine, I get the following information: lspci 00:00.0 USB controller: Intel Corporation Wellsburg USB Enhanced Host Controller #2 (rev 05) lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
However when I plug in a device to this USB port (Am sure it is the correct port in the Dom0) I see nothing in the DomU at all.
What can I do now? Many thanks Francis