working! i was able to pass through my AEOTEC zwave usb device.

@fjen had a good write up i had to change it a little bit for me. follow step 1-4

@fjen said in USB passthrough test reports in 7.5RC1:

@olivierlambert Sure thing!

Because I was passing through a USB Bluetooth dongle, I had to specifically create an "allow" entry in /etc/xensource/usb-policy.conf.

1. Run lsusb and identify the device to be passed through.

Bus 001 Device 002: ID 1b70:100f
Bus 001 Device 003: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS
Bus 001 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 001 Device 005: ID 0557:7000 ATEN International Co., Ltd Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 0557:2419 ATEN International Co., Ltd

......

what i did different

[root@xcp-ng ~]# nano /etc/xensource/usb-policy.conf

change DENY: class=02 # Communications and CDC-Control to ALLOW: class=02 # Communications and CDC-Control
also don't add the class to to your new line ALLOW:vid=0658 pid=0200

my usb-policy.conf

# When you change this file, run 'xe pusb-scan' to confirm
# the file can be parsed correctly.
#
# Syntax is an ordered list of case insensitive rules where # is line comment
#  and each rule is (ALLOW | DENY) : ( match )*
#  and each match is (class|subclass|prot|vid|pid|rel) = hex-number
# Maximum hex value for class/subclass/prot is FF, and for vid/pid/rel is FFFF
#
# USB Hubs (class 09) are always denied, independently of the rules in this file
DENY: vid=17e9 # All DisplayLink USB displays
ALLOW:vid=0658 pid=0200
ALLOW: class=02 # Communications and CDC-Control
ALLOW:vid=056a pid=0315 class=03 # Wacom Intuos tablet
ALLOW:vid=056a pid=0314 class=03 # Wacom Intuos tablet
ALLOW:vid=056a pid=00fb class=03 # Wacom DTU tablet
DENY: class=03 subclass=01 prot=01 # HID Boot keyboards
DENY: class=03 subclass=01 prot=02 # HID Boot mice
DENY: class=0a # CDC-Data
DENY: class=0b # Smartcard
DENY: class=e0 # Wireless controller
DENY: class=ef subclass=04 # Miscellaneous network devices
ALLOW: # Otherwise allow everything else

now run /opt/xensource/libexec/usb_scan.py -d

[root@xcp-ng ~]# /opt/xensource/libexec/usb_scan.py -d
[{"product-desc": "", "product-id": "0200", "description": "Sigma Designs, Inc.", "vendor-desc": "Sigma Designs, Inc.", "version": "2.00", "vendor-id": "0658", "path": "5-1", "serial": ""}]
[root@xcp-ng ~]#

reboot the server and you can now passthrough the usb using xcp-ng center