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Add documentation related to previous commit (NFC_ETGRELEASED on MFC AUTH failure)

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This commit is contained in:
Romuald Conty 2012-06-03 21:02:38 +00:00
parent b7a74931f6
commit 2b81baa14f
2 changed files with 5 additions and 0 deletions
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2
NEWS
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@ -14,6 +14,8 @@ API Changes:
take a constant size for Rx buffer
- New nfc_initiator_target_is_present() to test is the previously selected
target is available in the field
- nfc_initiator_transceive_bytes() returns NFC_ETGRELEASED when AUTH
command failed on a Mifare Classic.
New in 1.6.0-rc1:

3
libnfc/nfc.c
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@ -614,6 +614,9 @@ nfc_initiator_deselect_target(nfc_device *pnd)
* Tests show that on average this way of communicating is much faster than using the regular driver/middle-ware (often supplied by manufacturers).
*
* @warning The configuration option \a NP_HANDLE_PARITY must be set to \c true (the default value).
*
* @note When used with MIFARE Classic, NFC_ETGRELEASED error is returned if authentication command failed. You need to re-select the tag to operate with.
*
*/
int
nfc_initiator_transceive_bytes(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, uint8_t *pbtRx,