crewID/libnfc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Minor documentation improvements.

Browse source
This commit is contained in:
Romuald Conty 2010-07-22 16:16:37 +00:00
parent c4bb23631b
commit 424a48714f
1 changed files with 7 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
libnfc/nfc.c
View file

@ -406,15 +406,20 @@ bool nfc_initiator_select_dep_target(const nfc_device_t* pnd, const nfc_modulati
* @fn nfc_initiator_select_passive_target(const nfc_device_t* pnd, const nfc_modulation_t nmInitModulation, const byte_t* pbtInitData, const size_t szInitDataLen, nfc_target_info_t* pti)
* @brief Select a passive or emulated tag
* @return Returns true if action was successfully performed; otherwise returns false.
*
* @param pnd nfc_device_t struct pointer that represent currently used device
* @param im Desired modulation
* @param nmInitModulation Desired modulation
* @param pbtInitData Optional initiator data used for Felica, ISO14443B, Topaz Polling or for ISO14443A selecting a specific UID.
* @param szInitDataLen Length of initiator data \a pbtInitData.
* @param pnti nfc_target_info_t struct pointer which will filled if available
*
* The NFC device will try to find the available passive tags. Some NFC devices are capable to emulate passive tags. The standards (ISO18092 and ECMA-340) describe the modulation that can be used for reader to passive communications. The chip needs to know with what kind of tag it is dealing with, therefore the initial modulation and speed (106, 212 or 424 kbps) should be supplied.
* @note For every initial modulation type there is a different collection of information returned (in nfc_target_info_t pointer pti) They all fit in the data-type which is called nfc_target_info_t. This is a union which contains the tag information that belongs to the according initial modulation type.
*/
bool nfc_initiator_select_passive_target(const nfc_device_t* pnd, const nfc_modulation_t nmInitModulation, const byte_t* pbtInitData, const size_t szInitDataLen, nfc_target_info_t* pnti)
bool nfc_initiator_select_passive_target(const nfc_device_t* pnd,
const nfc_modulation_t nmInitModulation,
const byte_t* pbtInitData, const size_t szInitDataLen,
nfc_target_info_t* pnti)
{
byte_t abtInit[MAX_FRAME_LEN];
size_t szInitLen;