--- abstractions/libvirt-qemu.orig      2010-05-04 16:22:19.071572022 +0200
+++ abstractions/libvirt-qemu   2010-05-04 16:22:02.611570981 +0200
@@ -25,6 +25,7 @@
   # For hostdev access. The actual devices will be added dynamically
   /sys/bus/usb/devices/ r,
   /sys/devices/*/*/usb[0-9]*/** r,
+  /sys/devices/*/*/*/usb[0-9]*/** r,

   # WARNING: this gives the guest direct access to host hardware and specific
   # portions of shared memory. This is required for sound using ALSA with kvm,