Qemu-kvm 0.15.1 & Spice 0.10.0 & Spice-Gtk-0.7.81 USB redirection for Precise (v.4)

Libusb build is based on git://git.libusb.org/libusb.git - 1.0.9-rc1 libusb-1.0.9-rc1 release candidate
Qemu-kvm 0.15.1 has been patched via top 28 commits from
  http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-0.15.0-usbredir

Patches set for debian build may be generated as follows :
$ git clone git://people.freedesktop.org/~jwrdegoede/qemu
$ cd qemu
$ git checkout -B qemu-kvm-0.15.0-usbredir origin/qemu-kvm-0.15.0-usbredir
$ mkdir -p /tmp/patches
$ git format-patch -M -C --output-directory \
/tmp/patches ea2798c1ebe0c12d5feb7d7471a999ea0671ef2f

Qemu-kvm debian/rules contains:-

./configure \
      --target-list="x86_64-softmmu i386-softmmu x86_64-linux-user i386-linux-user" \
      --prefix=/usr \
      --interp-prefix=/etc/qemu-binfmt/%M \
      --disable-blobs \
      --disable-strip \
      --enable-spice \
      --enable-usb-redir \
      $(conf_arch)

VirtFS support is available.

Spice Server and client upgraded up to 0.10.0

*****************************
To install packages from PPA
*****************************
$ sudo add-apt-repository ppa:bderzhavets/spice-gtk-781p
$ sudo apt-get update
$ sudo apt-get install qemu-kvm qemu qemu-common \
  spice-client libusb-1.0-0 libusb-1.0-0-dev \
  libusbredir libusbredir-dev \
  libspice-protocol-dev libspice-server-dev \
  libspice-client-glib-2.0-4 libspice-client-glib-2.0-dev \
  libspice-client-gtk-2.0-1 libspice-client-gtk-2.0-dev \
  libspice-client-gtk-3.0-1 libspice-client-gtk-3.0-dev \
  python-spice-client-gtk spice-client-gtk \
  gir1.2-spice-client-glib-2.0 \
  gir1.2-spice-client-gtk-2.0 \
  gir1.2-spice-client-gtk-3.0

$ sudo apt-get install virtinst virt-manager virt-viewer
$ sudo adduser $USER libvirtd
$ sudo ln -s /etc/apparmor.d/usr.sbin.libvirtd /etc/apparmor.d/disable/