Hello all:
Rpi5 8GB with a Pi 512GB Hat. Creality GRBL 10w laser with air
I installed Win 11 Arm using BVM and then Lightburn. Works like a champ. The issue is the USB Passthrough. When I look at the USB Passthrough on the GUI, my key board and mouse show up but not the USB controller on the GRBL board. Is there a driver needed like CH430 or is this just a waste of time?
The Laser works fine in a normal windows environment.
Respect
John
Yes…
Firstly, serial USB devices like GRBL boards (never actually done it with GRBL - only industrial stuff) can be very picky with passthrough in virtual environments. (Source: pain and suffering) – never played with Win11 ARM though.
Most Creality (and generic GRBL) boards use one of:
(1) Even if the host sees the USB device, Windows 11 ARM needs its own driver to talk to it…So, yes Win11 might need a new driver.
Also…
Ensure the device is selected for passthrough. You need to manually enable or forward the USB device to the VM, it’s not automatic (like for keyboard / mouse). Never done this for GRBL - but it might be in the VM config. Something like:
-usb -device usb-host,hostbus=1,hostaddr=4
might work
Assuming you know the hostbus and hostaddr via the PI 
Get this via PI terminal
lsusb
(2) Try disconnecting and reconnecting the USB cable after booting into the VM. Possibly a folk remedy - but what the heck.
(3) Not sure if the Pi5 is USB3. Sometimes USB 3 crapps out on VM. Do you have and old USB2 hub? If so connect that to the PI and Creality to that. (Source - pain, suffering. Google).
You can try the ch341 driver here: CH341SER.EXE - NanjingQinhengMicroelectronics
No guarantees
I’ll have a look when I return home and let you know what I find. TY