USB Serial Problem Windows

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Last post
kanon
USB Serial Problem Windows

Hi,

I want to use virtualhere on Windows 10 to passthrough a denkovi USB Relay Board to a hyper-V guest.
The denkovi boards are based on a FT245R USB FIFO https://www.ftdichip.com/Products/ICs/FT245R.htm

Using it on the host everything works, when I try to use the program from the Guest the driver complains about an invalid handle.
This is the library I'm using: https://github.com/petersbingham/dae-py-relay-controller/tree/master/

Any ideas?

Thanks,
Kanon

Michael
.

On the server turn off windows selective suspend https://www.windowscentral.com/how-prevent-windows-10-turning-usb-devices

and when using via virtualhere on the guest also turn off selective suspend.

See if that fixes the issue

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