ПРОБРОС USB УСТРОЙСТВ В PROXMOX VE KVM

Весь интернет облазил в посках, а ответ оказался так близко – в man qm

VM CONFIGURATION
Each VM is identified by an unique ID (integer). Configuration for a VM is
stored at «/etc/qemu-server/ID.conf»

Currently, the following parameters are supported:

….

-usb[n] host=HOSTUSBDEVICE

Configure an USB device (n is 0 to 4). This can be used to
pass-through usb devices to the guest. HOSTUSBDEVICE syntax
is:

‘bus-port(.port)*’ (decimal numbers) or
‘vendor_id:product_id’ (hexadeciaml numbers)

You can use the ‘lsusb -t’ command to list existing usb
devices.

Note: This option allows direct access to host hardware. So it
is no longer possible to migrate such machines — use with
special care.

# lsusb
Bus 001 Device 004: ID 21dd:2112 Kingston Technology
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

В файле /etc/pve/qemu-server/ID.conf

строчку:
usb1:  host=21dd:2112

Перезагрузите виртуальную машину и USB девайс должен стать доступным.