[PVE-User] USB Expansion Card for PCIE Hub passthrough?

[Lindsay Mathieson]

Card hasn't turned up yet but I did notice that one of the USB hubs had 
its own IOMMU group, so passed that through (added the PCI id to 
vfio.conf). Much to my surprise it worked.

Holy crap, the difference is amazing. USB Audio just works now, no 
cracking or interrupts when starting any disk io or high CPU. The mouse 
is much more responsive.

On 2/09/2023 10:49 am, Lindsay Mathieson wrote:
> That was a really interesting article - decided to get the "Startech 4 
> Port SuperSpeed PEXUSB3S44V" it uses the same chipset (Renesas/NEC - 
> µPD720202) as the card referenced in the article.

-- 
Lindsay Mathieson