Sharing COM Port failed in Hyper-V

[rmshub]

Host: Windows 11 Pro
Guest OS on Hyper-V : Ubuntu 22.04
Command on Ubuntu

usbip list -r 172.23.20.1
Exportable USB devices
======================

• 172.23.20.1
  1-2: Silicon Labs : CP210x UART Bridge (10c4:ea60)
  : USB\VID_10C4&PID_EA60\DCC11553D40EEC11BB9EB9EB7A109228
  : (Defined at Interface level) (00/00/00)
  : 0 - Vendor Specific Class / unknown subclass / unknown protocol (ff/00/00)

sudo usbip attach -r 172.23.20.1 -b 1-2
libusbip: error: udev_device_new_from_subsystem_sysname failed
usbip: error: open vhci_driver

Usbipd log on windows
dbug: Microsoft.Extensions.Hosting.Internal.Host[1]
Hosting starting
dbug: Usbipd.PcapNg[1000]
usbipd:PcapNg:Path = ''
dbug: Usbipd.Server[1000]
2.4.1+1.Branch.master.Sha.90acf9456020ca8c6310ca62a71ee23cb6ca34ad
dbug: Usbipd.Server[1000]
usbipd:TcpKeepAliveInterval = 500 ms
dbug: Usbipd.Server[1000]
usbipd:TcpKeepAliveTime = 10000 ms
info: Microsoft.Hosting.Lifetime[0]
Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
Content root path: C:\Users
dbug: Microsoft.Extensions.Hosting.Internal.Host[2]
Hosting started
dbug: Usbipd.Server[1000]
new connection from 172.23.20.65
dbug: Usbipd.ConnectedClient[1000]
Received opcode: OP_REQ_IMPORT
info: Usbipd.ConnectedClient[1]
Client 172.23.20.65 claimed device at 1-2 (USB\VID_10C4&PID_EA60\DCC11553D40EEC11BB9EB9EB7A109228).
info: Usbipd.ConnectedClient[2]
Client 172.23.20.65 released device at 1-2 (USB\VID_10C4&PID_EA60\DCC11553D40EEC11BB9EB9EB7A109228).
dbug: Usbipd.ConnectedClient[1000]
Unbind or unplug while attached

Could you please help me to resolve this issue ?

[dorssel]

You need to load the USBIP driver on Linux first, before attaching:

sudo modprobe vhci-hcd
sudo usbip attach -r 172.23.20.1 -b 1-2

[rmshub]

Thanks for quick update

Got this error "modprobe: FATAL: "Module vhci-hcd not found" in directory /lib/modules/5.15.0-1022-azure"

[dorssel]

You need the generic Linux image, not the Azure one.

sudo apt install linux-image-generic

[rmshub]

After changing kernel image to generic image above commands are working properly

Refer https://askubuntu.com/questions/82140/how-can-i-boot-with-an-older-kernel-version to switch different kernel version