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nfc-poll(1)			libnfc's examples		     nfc-poll(1)

NAME
     nfc-poll - poll first available NFC target

SYNOPSIS
     nfc-poll

DESCRIPTION
     nfc-poll is a utility for polling any available target (tags but also NFCIP
     targets) using ISO14443-A, FeliCa, Jewel and ISO14443-B modulations.

     This  tool uses hardware polling feature if available (ie. PN532) or switch
     back to software polling, it will display available  information  retrieved
     from the tag.

OPTIONS
     -v     Tells  nfc-poll to be verbose and display detailed information about
	    the targets shown.	This includes SAK decoding and fingerprinting is
	    available.

IMPORTANT
     There are some well-know limits with this example:
      - Even with NDO_AUTO_14443_4A enabled (default), nfc-poll  can  miss  ATS.
     That  due to the way the PN532 use to poll for ISO14443 type A, it will at-
     tempt to find ISO14443-4-only targets, then ISO14443-3. If your  ISO14443-4
     target  is  present  when	PN532 looks for ISO14443-4-only, ATS will be re-
     trieved. But if your target enter the field during  ISO14443-3,  RATS  will
     not be sent and ATS not retrieved.
      -  nfc-poll  can show up only one card while two are in field. That's due,
     again, to the way the PN532 poll for targets. It will stop polling when one
     modulation got a result, so if you have, for example, one	ISO14443-3  (eg.
     Mifare  Ultralight) and one ISO14443-4 (eg. Mifare DESFire), it will proba-
     bly return only the ISO14443-4.

BUGS
     Please report any bugs on the libnfc issue tracker at:
     https://github.com/nfc-tools/libnfc/issues

LICENCE
     libnfc is licensed under the GNU Lesser General Public License (LGPL), ver-
     sion 3.
     libnfc-utils and libnfc-examples are covered by the the  BSD  2-Clause  li-
     cense.

AUTHORS
     Romuald Conty <romuald@libnfc.org>

     This  manual page was written by Romuald Conty <romuald@libnfc.org>.  It is
     licensed under the terms of the GNU GPL (version 2 or later).

libnfc				  June 26, 2009 		     nfc-poll(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=nfc-poll&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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