rutoken ssh-agent howto + KDE
-----------------------

1. cat >> .ssh/config << __EOF__
Host foo.example.com
    HostName foo.example.com
    IdentityAgent /tmp/S.rutoken.ssh
    User thresh
    Port 22
__EOF__

2. cat >> /etc/udev/rules.d/90-rutoken.rules << __EOF__
 # remember to run: udevadm control --reload-rules
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="0a89", ATTR{idProduct}=="0030", RUN+="/usr/local/bin/rutoken-ssh add &"
ACTION=="remove", SUBSYSTEMS=="usb", ENV{ID_VENDOR_ID}=="0a89", ENV{ID_MODEL_ID}=="0030", RUN+="/usr/local/bin/rutoken-ssh remove &"
__EOF__

3. cat > /usr/local/bin/rutoken-ssh __EOF__
#!/bin/sh

# Set location of the IPC pipe
PIPE=/tmp/control_token.pipe

# Just exit if the control pipe doesn't exist
[ -p "$PIPE" ] || exit 0

echo "$1" "$ID_SERIAL" > "$PIPE"

4.