Isolus / libnfc

Automatically exported from code.google.com/p/libnfc
GNU Lesser General Public License v3.0
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General Information

libnfc is a library which allows userspace application access to NFC devices.

The official web site is: http://www.nfc-tools.org/

The official forum site is: http://www.libnfc.org/community/

The official development site is: http://libnfc.googlecode.com/

Important note: this file covers POSIX systems, for Windows please read README-Windows.txt

Requirements

Some NFC drivers depend on third party software:

The regression test suite depends on the cutter framework: http://cutter.sf.net

Installation

See the file 'INSTALL' for configure, build and install details.

Additionnally, you may need to grant permissions to your user to drive your device. Under GNU/Linux systems, if you use udev, you could use the provided udev rules. e.g. under Debian, Ubuntu, etc. sudo cp contrib/udev/42-pn53x.rules /lib/udev/rules.d/

Under FreeBSD, if you use devd, there is also a rules file: contrib/devd/pn53x.conf.

How to report bugs

To report a bug, visit http://code.google.com/p/libnfc/issues/list and fill out a bug report form.

If you have questions, remarks, we encourage you to post this in the developers community: http://www.libnfc.org/community

Please make sure to include:

Patches

Patches can be posted to http://code.google.com/p/libnfc/issues/list or can be sent directly to libnfc's developers: http://nfc-tools.org/index.php?title=Contact

If the patch fixes a bug, it is usually a good idea to include all the information described in "How to Report Bugs".

Building

It should be as simple as running these two commands:

./configure make

Troubleshooting

Touchatag/ACR122:

If your Touchatag or ACR122 device fails being detected by libnfc, make sure that PCSC-lite daemon (pcscd) is installed and is running.

If your Touchatag or ACR122 device fails being detected by PCSC-lite daemon (pcsc_scan doesn't see anything) then try removing the bogus firmware detection of libccid: edit libccid_Info.plist configuration file (usually /etc/libccid_Info.plist) and locate "ifdDriverOptions", turn "0x0000" value into 0x0004 to allow bogus devices and restart pcscd daemon.

ACR122:

Using an ACR122 device with libnfc and without tag (e.g. to use NFCIP modes or card emulation) needs yet another PCSC-lite tweak: You need to allow usage of CCID Exchange command. To do this, edit libccid_Info.plist configuration file (usually /etc/libccid_Info.plist) and locate "ifdDriverOptions", turn "0x0000" value into 0x0001 to allow CCID exchange or 0x0005 to allow CCID exchange and bogus devices (cf previous remark) and restart pcscd daemon.

Warning: if you use ACS CCID drivers (acsccid), configuration file is located in something like: /usr/lib/pcsc/drivers/ifd-acsccid.bundle/Contents/Info.plist

SCL3711:

Libnfc cannot be used concurrently with the PCSC proprietary driver of SCL3711. Two possible solutions:

PN533 USB device on Linux >= 3.1:

Since Linux kernel version 3.1, two kernel-modules must not be loaded in order to use libnfc : "nfc" and "pn533". To prevent kernel from loading automatically these modules, you can blacklist them in a modprobe conf file. This file is provided within libnfc archive: sudo cp contrib/linux/blacklist-libnfc.conf /etc/modprobe.d/blacklist-libnfc.conf

Proprietary Notes

FeliCa is s registered trademark of the Sony Corporation. MIFARE is a trademark of NXP Semiconductors. Jewel Topaz is a trademark of Innovision Research & Technology. All other trademarks are the property of their respective owners.