Re: [Qemu-devel] BUG: 0.14.0 -device usb-host supports only one device

[Erik Rull <erik.rull@rdsoftware.de>]

Gerd Hoffmann wrote:
>   Hi,
>
>>>> When enabling the -device usb-host option support for adding
>>>> automatically USB devices from the host to the guest, only one device
>>>> gets detected.
>
> Yes. -device usb-host creates a *single* virtual usb device instance.
> When a matching device on the host is found the virtual device is
> plugged in, otherwise it is plugged out. In plugged out state qemu looks
> now and then (every two seconds IIRC) whenever a matching device was
> plugged into the host.
>
> Try -device usb-host twice if you need two virtual usb devices.
>
> cheers,
> Gerd

Hi Gerd,

hm, if I add it multiple times and plug in a USB flashdrive, then all slots 
are filled up with this device (duplicated)...
And Windows detects them with the result, that the "not first" devices are 
marked with a yellow exclamation mark in the device manager.
And the next device plugged in gets then not detected because all 
preallocated slots are full :-(

Any ideas?

Best regards,

Erik