===============================================
Device Configuration for Gnuk Token with libusb
===============================================

In order to use Gnuk Token with libusb, configuration of device is
needed for permissions.  Note that this is not needed for the case of
PC/SC Lite, as it has its own device configuration.


udev rules for Gnuk Token
=========================

In case of Debian, there is a file /lib/udev/rules.d/60-gnupg.rules,
when you install "gnupg" package.  This is the place we need to
change, if your installation is older (than jessie).  Newer "gnupg"
package (1.4.15-1 or later) has already supported Gnuk Token.

If needed, please add lines for Gnuk Token to give a desktop user the
permission to use the device.  We specify USB ID of Gnuk Token (by
FSIJ)::

    --- /lib/udev/rules.d/60-gnupg.rules.orig	2012-06-24 21:51:26.000000000 +0900
    +++ /lib/udev/rules.d/60-gnupg.rules	2012-07-13 17:18:55.149587687 +0900
    @@ -10,4 +10,7 @@
     ATTR{idVendor}=="04e6", ATTR{idProduct}=="5115", ENV{ID_SMARTCARD_READER}="1", ENV{ID_SMARTCARD_READER_DRIVER}="gnupg"
     ATTR{idVendor}=="20a0", ATTR{idProduct}=="4107", ENV{ID_SMARTCARD_READER}="1", ENV{ID_SMARTCARD_READER_DRIVER}="gnupg"
     
    +# Gnuk
    +ATTR{idVendor}=="234b", ATTR{idProduct}=="0000", ENV{ID_SMARTCARD_READER}="1", ENV{ID_SMARTCARD_READER_DRIVER}="gnupg"
    +
     LABEL="gnupg_rules_end"

When we install "gnupg2" package only (with no "gnupg" package),
there will be no udev rules (there is a bug report #543217 for this issue).
In this case, we need something like this in /etc/udev/rules.d/60-gnuk.rules::

    SUBSYSTEMS=="usb", ATTRS{idVendor}=="234b", ATTRS{idProduct}=="0000",   \
    ENV{ID_SMARTCARD_READER}="1", ENV{ID_SMARTCARD_READER_DRIVER}="gnupg"

Usually, udev daemon automatically handles for the changes of configuration
files.  If not, please let the daemon reload rules::

  # udevadm control --reload-rules




udev rules for ST-Link/V2
=========================

For development of Gnuk, we use ST-Link/V2 as JTAG/SWD debugger.
We need to have a udev rule for ST-Link/V2.  It's like::

    ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="0483", ATTR{idProduct}=="3748", GROUP="tape", MODE="664", SYMLINK+="stlink"

I have this in the file /etc/udev/rules.d/10-stlink.rules.