I use a virtual machine for a scanner I have for which the vendor never
updated their driver. I have accessed it for years using a pass through:
<hostdev mode='subsystem' type='usb' managed='yes'>
<source>
<vendor id='0x055f'/>
<product id='0x040b'/>
</source>
</hostdev>
I brought this over from the old config and although the machine
boots as if it sees it, all I get with an lsusb it that the VM's
usb hub exists.
The scanner is showing on the host machine.
I tried deleting the device and remapping it in virt-manager and then
restarting
the vm. No joy.
So what has changed, or was there something I may have had to do 4 years
ago to set this up that I have long forgotten? Perhaps some hack in udev
on the host?
I really need access to this scanner... like 4 hours ago!
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