I have 2 usb controllers installed via a riser card plugged into a M.2 slot. 
(Like those used for mining with GPU's). Everything works great for a long 
time, then my Windows 10 VM freezes and I lose all USB activity. LSPCI still 
sees the devices:

0a:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller
0b:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller
43:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller
44:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller

I assume a and b are the same physical card as its supposed to have 2 channels 
each, same with 44 and 43.

I tried for both 44 and 43

echo "1" > /sys/bus/pci/devices/0000\:43\:00.0/remove
echo "1" > /sys/bus/pci/rescan
echo "1" > /sys/bus/pci/devices/0000\:43\:00.0/reset

This did not work. I cannot determine if its just the VM thats no longer 
seeing/using the hardware or if its the hardware itself. I wonder if its a 
power state thing as well? Nothing I plug into the card seems to be recognized. 
Any Suggestions? rebooting the VM doesnt help either. It appears the hardware 
is functioning, but anything you plug into it isnt being detected.
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