[fedora-virt] USB passthrough stopped working

VISEUR Eric eric.viseur at be.thalesgroup.com
Fri Aug 22 09:27:55 UTC 2014


I've just reinstalled a computer with F20 and virt-preview and noticed USB passthrough doesn't work with QEMU/KVM.  I add the device using virt-manager.

·         The device indeed appears in the XML declaration after I add it;

·         Qemu instances are created under the qemu user;

·         Qemu.conf wasn't modified;

·         The device remains owned by root;

·         The VM libvirt log signals a libusb error: libusb requires write access to USB device nodes.

Is it a known problem ?

Thanks in advance.

Eric VISEUR | System Engineer | THALES Belgium S.A.
Rue des Frères Taymans, 28 |B-1480 TUBIZE - BELGIUM | eric.viseur at be.thalesgroup.com<mailto:eric.viseur at be.thalesgroup.com>

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