Mac OS real USB device support issue

[Programmingkid]

Hi Gerd,

I was wondering if you had access to a Mac OS 10 or Mac OS 11 machine to test 
USB support. I am on Mac OS 11.1 and cannot make USB devices work with any of 
my guests. So far these are the guests I have tested with:

- Windows 7
- Mac OS 9.2
- Windows 2000

I have tried using USB flash drives, USB sound cards, and an USB headset. They 
all show up under 'info usb', but cannot be used in the guest. My setup does 
use a USB-C hub so I'm not sure if this is a bug with QEMU or an issue with the 
hub. Would you have any information on this issue?