/*********************************************************************
 *
 *  $Id: svn_id $
 *
 *  Declares yFindRfidReader(), the high-level API for RfidReader functions
 *
 *  - - - - - - - - - License information: - - - - - - - - -
 *
 *  Copyright (C) 2011 and beyond by Yoctopuce Sarl, Switzerland.
 *
 *  Yoctopuce Sarl (hereafter Licensor) grants to you a perpetual
 *  non-exclusive license to use, modify, copy and integrate this
 *  file into your software for the sole purpose of interfacing
 *  with Yoctopuce products.
 *
 *  You may reproduce and distribute copies of this file in
 *  source or object form, as long as the sole purpose of this
 *  code is to interface with Yoctopuce products. You must retain
 *  this notice in the distributed source file.
 *
 *  You should refer to Yoctopuce General Terms and Conditions
 *  for additional information regarding your rights and
 *  obligations.
 *
 *  THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT
 *  WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
 *  WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO
 *  EVENT SHALL LICENSOR BE LIABLE FOR ANY INCIDENTAL, SPECIAL,
 *  INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA,
 *  COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR
 *  SERVICES, ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT
 *  LIMITED TO ANY DEFENSE THEREOF), ANY CLAIMS FOR INDEMNITY OR
 *  CONTRIBUTION, OR OTHER SIMILAR COSTS, WHETHER ASSERTED ON THE
 *  BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE), BREACH OF
 *  WARRANTY, OR OTHERWISE.
 *
 *********************************************************************/

#include "yocto_api.h"
CF_EXTERN_C_BEGIN
NS_ASSUME_NONNULL_BEGIN

@class YRfidReader;

//--- (generated code: YRfidTagInfo globals)
#define Y_IEC_15693                     1
#define Y_IEC_14443                     2
#define Y_IEC_14443_MIFARE_ULTRALIGHT   3
#define Y_IEC_14443_MIFARE_CLASSIC1K    4
#define Y_IEC_14443_MIFARE_CLASSIC4K    5
#define Y_IEC_14443_MIFARE_DESFIRE      6
#define Y_IEC_14443_NTAG_213            7
#define Y_IEC_14443_NTAG_215            8
#define Y_IEC_14443_NTAG_216            9
#define Y_IEC_14443_NTAG_424_DNA        10
#define Y_IEC_15693_ST25DV              11
#define Y_IEC_15693_ST25TV              12
#define Y_IEC_15693_TAGIT_HFI           13
#define Y_IEC_15693_MB89R               14
#define Y_IEC_15693_ICODE_DNA           15
#define Y_IEC_15693_ICODE_SLI           16
//--- (end of generated code: YRfidTagInfo globals)

//--- (generated code: YRfidTagInfo class start)
/**
 * YRfidTagInfo Class: RFID tag description, used by class YRfidReader
 *
 * YRfidTagInfo objects are used to describe RFID tag attributes,
 * such as the tag type and its storage size. These objects are returned by
 * method get_tagInfo() of class YRfidReader.
 */
@interface YRfidTagInfo : NSObject
//--- (end of generated code: YRfidTagInfo class start)
{
@protected
//--- (generated code: YRfidTagInfo attributes declaration)
    NSString*       _tagId;
    int             _tagType;
    NSString*       _typeStr;
    int             _nfcType;
    int             _size;
    int             _usable;
    int             _blksize;
    int             _fblk;
    int             _lblk;
//--- (end of generated code: YRfidTagInfo attributes declaration)
}
-(id)    init;

//--- (generated code: YRfidTagInfo private methods declaration)
//--- (end of generated code: YRfidTagInfo private methods declaration)
//--- (generated code: YRfidTagInfo yapiwrapper declaration)
//--- (end of generated code: YRfidTagInfo yapiwrapper declaration)
//--- (generated code: YRfidTagInfo public methods declaration)
/**
 * Returns the RFID tag identifier.
 *
 * @return a string with the RFID tag identifier.
 */
-(NSString*)     get_tagId;

/**
 * Returns the type of the RFID tag, as a numeric constant.
 * (IEC_14443_MIFARE_CLASSIC1K, ...).
 *
 * @return an integer corresponding to the RFID tag type
 */
-(int)     get_tagType;

/**
 * Returns the type of the RFID tag, as a string.
 *
 * @return a string corresponding to the RFID tag type
 */
-(NSString*)     get_tagTypeStr;

/**
 * Returns the type of NFC type usable on the RFID tag, between 1 and 5.
 * If no known NFC type is know for the RFID tag, returns zero.
 *
 * @return an integer corresponding to the RFID tag type
 */
-(int)     get_tagNFCtype;

/**
 * Returns the total memory size of the RFID tag, in bytes.
 *
 * @return the total memory size of the RFID tag
 */
-(int)     get_tagMemorySize;

/**
 * Returns the usable storage size of the RFID tag, in bytes.
 *
 * @return the usable storage size of the RFID tag
 */
-(int)     get_tagUsableSize;

/**
 * Returns the block size of the RFID tag, in bytes.
 *
 * @return the block size of the RFID tag
 */
-(int)     get_tagBlockSize;

/**
 * Returns the index of the block available for data storage on the RFID tag.
 * Some tags have special block used to configure the tag behavior, these
 * blocks must be handled with precaution. However, the  block return by
 * get_tagFirstBlock() can be locked, use get_tagLockState()
 * to find out  which block are locked.
 *
 * @return the index of the first usable storage block on the RFID tag
 */
-(int)     get_tagFirstBlock;

/**
 * Returns the index of the last last black available for data storage on the RFID tag,
 * However, this block can be locked, use get_tagLockState() to find out
 * which block are locked.
 *
 * @return the index of the last usable storage block on the RFID tag
 */
-(int)     get_tagLastBlock;

-(void)     imm_init:(NSString*)tagId :(int)tagType :(int)size :(int)usable :(int)blksize :(int)fblk :(int)lblk;


//--- (end of generated code: YRfidTagInfo public methods declaration)

@end

//--- (generated code: YRfidTagInfo functions declaration)
//--- (end of generated code: YRfidTagInfo functions declaration)


//--- (generated code: YRfidStatus globals)
#define Y_SUCCESS                       0
#define Y_COMMAND_NOT_SUPPORTED         1
#define Y_COMMAND_NOT_RECOGNIZED        2
#define Y_COMMAND_OPTION_NOT_RECOGNIZED 3
#define Y_COMMAND_CANNOT_BE_PROCESSED_IN_TIME 4
#define Y_UNDOCUMENTED_ERROR            15
#define Y_BLOCK_NOT_AVAILABLE           16
#define Y_BLOCK_ALREADY_LOCKED          17
#define Y_BLOCK_LOCKED                  18
#define Y_BLOCK_NOT_SUCESSFULLY_PROGRAMMED 19
#define Y_BLOCK_NOT_SUCESSFULLY_LOCKED  20
#define Y_BLOCK_IS_PROTECTED            21
#define Y_CRYPTOGRAPHIC_ERROR           64
#define Y_READER_BUSY                   1000
#define Y_TAG_NOTFOUND                  1001
#define Y_TAG_LEFT                      1002
#define Y_TAG_JUSTLEFT                  1003
#define Y_TAG_COMMUNICATION_ERROR       1004
#define Y_TAG_NOT_RESPONDING            1005
#define Y_TIMEOUT_ERROR                 1006
#define Y_COLLISION_DETECTED            1007
#define Y_INVALID_CMD_ARGUMENTS         -66
#define Y_UNKNOWN_CAPABILITIES          -67
#define Y_MEMORY_NOT_SUPPORTED          -68
#define Y_INVALID_BLOCK_INDEX           -69
#define Y_MEM_SPACE_UNVERRUN_ATTEMPT    -70
#define Y_BROWNOUT_DETECTED             -71
#define Y_BUFFER_OVERFLOW               -72
#define Y_CRC_ERROR                     -73
#define Y_COMMAND_RECEIVE_TIMEOUT       -75
#define Y_DID_NOT_SLEEP                 -76
#define Y_ERROR_DECIMAL_EXPECTED        -77
#define Y_HARDWARE_FAILURE              -78
#define Y_ERROR_HEX_EXPECTED            -79
#define Y_FIFO_LENGTH_ERROR             -80
#define Y_FRAMING_ERROR                 -81
#define Y_NOT_IN_CNR_MODE               -82
#define Y_NUMBER_OU_OF_RANGE            -83
#define Y_NOT_SUPPORTED                 -84
#define Y_NO_RF_FIELD_ACTIVE            -85
#define Y_READ_DATA_LENGTH_ERROR        -86
#define Y_WATCHDOG_RESET                -87
#define Y_UNKNOW_COMMAND                -91
#define Y_UNKNOW_ERROR                  -92
#define Y_UNKNOW_PARAMETER              -93
#define Y_UART_RECEIVE_ERROR            -94
#define Y_WRONG_DATA_LENGTH             -95
#define Y_WRONG_MODE                    -96
#define Y_UNKNOWN_DWARFxx_ERROR_CODE    -97
#define Y_RESPONSE_SHORT                -98
#define Y_UNEXPECTED_TAG_ID_IN_RESPONSE -99
#define Y_UNEXPECTED_TAG_INDEX          -100
#define Y_READ_EOF                      -101
#define Y_READ_OK_SOFAR                 -102
#define Y_WRITE_DATA_MISSING            -103
#define Y_WRITE_TOO_MUCH_DATA           -104
#define Y_TRANSFER_CLOSED               -105
#define Y_COULD_NOT_BUILD_REQUEST       -106
#define Y_INVALID_OPTIONS               -107
#define Y_UNEXPECTED_RESPONSE           -108
#define Y_AFI_NOT_AVAILABLE             -109
#define Y_DSFID_NOT_AVAILABLE           -110
#define Y_TAG_RESPONSE_TOO_SHORT        -111
#define Y_DEC_EXPECTED                  -112
#define Y_HEX_EXPECTED                  -113
#define Y_NOT_SAME_SECOR                -114
#define Y_MIFARE_AUTHENTICATED          -115
#define Y_NO_DATABLOCK                  -116
#define Y_KEYB_IS_READABLE              -117
#define Y_OPERATION_NOT_EXECUTED        -118
#define Y_BLOK_MODE_ERROR               -119
#define Y_BLOCK_NOT_WRITABLE            -120
#define Y_BLOCK_ACCESS_ERROR            -121
#define Y_BLOCK_NOT_AUTHENTICATED       -122
#define Y_ACCESS_KEY_BIT_NOT_WRITABLE   -123
#define Y_USE_KEYA_FOR_AUTH             -124
#define Y_USE_KEYB_FOR_AUTH             -125
#define Y_KEY_NOT_CHANGEABLE            -126
#define Y_BLOCK_TOO_HIGH                -127
#define Y_AUTH_ERR                      -128
#define Y_NOKEY_SELECT                  -129
#define Y_CARD_NOT_SELECTED             -130
#define Y_BLOCK_TO_READ_NONE            -131
#define Y_NO_TAG                        -132
#define Y_TOO_MUCH_DATA                 -133
#define Y_CON_NOT_SATISFIED             -134
#define Y_BLOCK_IS_SPECIAL              -135
#define Y_READ_BEYOND_ANNOUNCED_SIZE    -136
#define Y_BLOCK_ZERO_IS_RESERVED        -137
#define Y_VALUE_BLOCK_BAD_FORMAT        -138
#define Y_ISO15693_ONLY_FEATURE         -139
#define Y_ISO14443_ONLY_FEATURE         -140
#define Y_MIFARE_CLASSIC_ONLY_FEATURE   -141
#define Y_BLOCK_MIGHT_BE_PROTECTED      -142
#define Y_NO_SUCH_BLOCK                 -143
#define Y_COUNT_TOO_BIG                 -144
#define Y_UNKNOWN_MEM_SIZE              -145
#define Y_MORE_THAN_2BLOCKS_MIGHT_NOT_WORK -146
#define Y_READWRITE_NOT_SUPPORTED       -147
#define Y_UNEXPECTED_VICC_ID_IN_RESPONSE -148
#define Y_LOCKBLOCK_NOT_SUPPORTED       -150
#define Y_INTERNAL_ERROR_SHOULD_NEVER_HAPPEN -151
#define Y_INVLD_BLOCK_MODE_COMBINATION  -152
#define Y_INVLD_ACCESS_MODE_COMBINATION -153
#define Y_INVALID_SIZE                  -154
#define Y_BAD_PASSWORD_FORMAT           -155
#define Y_RADIO_IS_OFF                  -156
#define Y_NOT_AVAILABLE_ON_THIS_TAG     -157
#define Y_PASSWORD_FEATURE_NOT_SUPPORTED -158
#define Y_BAD_PASSWORD_LENGTH           -159
#define Y_BAD_PASSWORD_TYPE             -160
#define Y_BAD_PASSWORD                  -161
#define Y_PASSWORD_REQUIRED             -162
#define Y_MULTIWRITE_NOT_SUPPORTED      -163
#define Y_MULTIREAD_NOT_SUPPORTED       -164
//--- (end of generated code: YRfidStatus globals)

//--- (generated code: YRfidStatus class start)
/**
 * YRfidStatus Class: Detailled information about the result of RFID tag operations, allowing to find
 * out what happened exactly after a tag operation failure.
 *
 * YRfidStatus objects provide additional information about
 * operations on RFID tags, including the range of blocks affected
 * by read/write operations and possible errors when communicating
 * with RFID tags.
 * This makes it possible, for example, to distinguish communication
 * errors that can be recovered by an additional attempt, from
 * security or other errors on the tag.
 * Combined with the EnableDryRun option in RfidOptions,
 * this structure can be used to predict which blocks will be affected
 * by a write operation.
 */
@interface YRfidStatus : NSObject
//--- (end of generated code: YRfidStatus class start)
{
@protected
//--- (generated code: YRfidStatus attributes declaration)
    NSString*       _tagId;
    int             _errCode;
    int             _errBlk;
    NSString*       _errMsg;
    int             _yapierr;
    int             _fab;
    int             _lab;
//--- (end of generated code: YRfidStatus attributes declaration)
}
-(id)    init;

//--- (generated code: YRfidStatus private methods declaration)
//--- (end of generated code: YRfidStatus private methods declaration)
//--- (generated code: YRfidStatus yapiwrapper declaration)
//--- (end of generated code: YRfidStatus yapiwrapper declaration)
//--- (generated code: YRfidStatus public methods declaration)
/**
 * Returns RFID tag identifier related to the status.
 *
 * @return a string with the RFID tag identifier.
 */
-(NSString*)     get_tagId;

/**
 * Returns the detailled error code, or 0 if no error happened.
 *
 * @return a numeric error code
 */
-(int)     get_errorCode;

/**
 * Returns the RFID tag memory block number where the error was encountered, or -1 if the
 * error is not specific to a memory block.
 *
 * @return an RFID tag block number
 */
-(int)     get_errorBlock;

/**
 * Returns a string describing precisely the RFID commande result.
 *
 * @return an error message string
 */
-(NSString*)     get_errorMessage;

-(int)     get_yapiError;

/**
 * Returns the block number of the first RFID tag memory block affected
 * by the operation. Depending on the type of operation and on the tag
 * memory granularity, this number may be smaller than the requested
 * memory block index.
 *
 * @return an RFID tag block number
 */
-(int)     get_firstAffectedBlock;

/**
 * Returns the block number of the last RFID tag memory block affected
 * by the operation. Depending on the type of operation and on the tag
 * memory granularity, this number may be bigger than the requested
 * memory block index.
 *
 * @return an RFID tag block number
 */
-(int)     get_lastAffectedBlock;

-(void)     imm_init:(NSString*)tagId :(int)errCode :(int)errBlk :(int)fab :(int)lab;


//--- (end of generated code: YRfidStatus public methods declaration)

@end

//--- (generated code: YRfidStatus functions declaration)
//--- (end of generated code: YRfidStatus functions declaration)


//--- (generated code: YRfidOptions globals)
#define Y_NO_RFID_KEY                   0
#define Y_MIFARE_KEY_A                  1
#define Y_MIFARE_KEY_B                  2
#define Y_ST25DV_CONFIG_PWD             3
#define Y_ST25DV_PWD1                   4
#define Y_ST25DV_PWD2                   5
#define Y_ST25DV_PWD3                   6
#define Y_ST25TV_CONFIG_PWD             7
#define Y_ST25TV_PWD1                   8
#define Y_ST25TV_PWD2                   9
//--- (end of generated code: YRfidOptions globals)

//--- (generated code: YRfidOptions class start)
/**
 * YRfidOptions Class: Additional parameters for operations on RFID tags.
 *
 * The YRfidOptions objects are used to specify additional
 * optional parameters to RFID commands that interact with tags,
 * including security keys. When instantiated,the parameters of
 * this object are pre-initialized to a value  which corresponds
 * to the most common usage.
 */
@interface YRfidOptions : NSObject
//--- (end of generated code: YRfidOptions class start)
{
@public
//--- (generated code: YRfidOptions attributes declaration)
    /**
     * Type of security key to be used to access the RFID tag.
     * For MIFARE Classic tags, allowed values are
     * Y_MIFARE_KEY_A or Y_MIFARE_KEY_B.
     * The default value is Y_NO_RFID_KEY, in that case
     * the reader will use the most common default key for the
     * tag type.
     * When a security key is required, it must be provided
     * using property HexKey.
     */
    int             KeyType;
    /**
     * Security key to be used to access the RFID tag, as an
     * hexadecimal string. The key will only be used if you
     * also specify which type of key it is, using property
     * KeyType.
     */
    NSString*       HexKey;
    /**
     * Forces the use of single-block commands to access RFID tag memory blocks.
     * By default, the Yoctopuce library uses the most efficient access strategy
     * generally available for each tag type, but you can force the use of
     * single-block commands if the RFID tags you are using do not support
     * multi-block commands. If operation speed is not a priority, choose
     * single-block mode as it will work with any mode.
     */
    bool            ForceSingleBlockAccess;
    /**
     * Forces the use of multi-block commands to access RFID tag memory blocks.
     * By default, the Yoctopuce library uses the most efficient access strategy
     * generally available for each tag type, but you can force the use of
     * multi-block commands if you know for sure that the RFID tags you are using
     * do support multi-block commands. Be  aware that even if a tag allows multi-block
     * operations, the maximum number of blocks that can be written or read at the same
     * time can be (very) limited. If the tag does not support multi-block mode
     * for the wanted operation, the option will be ignored.
     */
    bool            ForceMultiBlockAccess;
    /**
     * Enables direct access to RFID tag control blocks.
     * By default, Yoctopuce library read and write functions only work
     * on data blocks and automatically skip special blocks, as specific functions are provided
     * to configure security parameters found in control blocks.
     * If you need to access control blocks in your own way using
     * read/write functions, enable this option.  Use this option wisely,
     * as overwriting a special block migth very well irreversibly alter your
     * tag behavior.
     */
    bool            EnableRawAccess;
    /**
     * Disables the tag memory overflow test. By default, the Yoctopuce
     * library's read/write functions detect overruns and do not run
     * commands that are likely to fail. If you nevertheless wish to
     * try to access more memory than the tag announces, you can try to use
     * this option.
     */
    bool            DisableBoundaryChecks;
    /**
     * Enables simulation mode to check the affected block range as well
     * as access rights. When this option is active, the operation is
     * not fully applied to the RFID tag but the affected block range
     * is determined and the optional access key is tested on these blocks.
     * The access key rights are not tested though. This option applies to
     * write / configure operations only, it is ignored for read operations.
     */
    bool            EnableDryRun;
//--- (end of generated code: YRfidOptions attributes declaration)
}
-(id)    init;

//--- (generated code: YRfidOptions private methods declaration)
//--- (end of generated code: YRfidOptions private methods declaration)
//--- (generated code: YRfidOptions yapiwrapper declaration)
//--- (end of generated code: YRfidOptions yapiwrapper declaration)
//--- (generated code: YRfidOptions public methods declaration)
-(NSString*)     imm_getParams;


//--- (end of generated code: YRfidOptions public methods declaration)

@end

//--- (generated code: YRfidOptions functions declaration)
//--- (end of generated code: YRfidOptions functions declaration)


//--- (generated code: YRfidReader globals)
typedef void (*YRfidReaderValueCallback)(YRfidReader *func, NSString *functionValue);
typedef void (*YEventCallback)(YRfidReader *obj, double timestamp, NSString *eventType, NSString *eventData);
#define Y_NTAGS_INVALID                 YAPI_INVALID_UINT
#define Y_REFRESHRATE_INVALID           YAPI_INVALID_UINT
//--- (end of generated code: YRfidReader globals)

//--- (generated code: YRfidReader class start)
/**
 * YRfidReader Class: RfidReader function interface
 *
 * The YRfidReader class allows you to detect RFID tags, as well as
 * read and write on these tags if the security settings allow it.
 *
 * Short reminder:
 *
 * - A tag's memory is generally organized in fixed-size blocks.
 * - At tag level, each block must be read and written in its entirety.
 * - Some blocks are special configuration blocks, and may alter the tag's behavior
 * if they are rewritten with arbitrary data.
 * - Data blocks can be set to read-only mode, but on many tags, this operation is irreversible.
 *
 *
 * By default, the RfidReader class automatically manages these blocks so that
 * arbitrary size data  can be manipulated of  without risk and without knowledge of
 * tag architecture.
 */
@interface YRfidReader : YFunction
//--- (end of generated code: YRfidReader class start)
{
@protected
//--- (generated code: YRfidReader attributes declaration)
    int             _nTags;
    int             _refreshRate;
    YRfidReaderValueCallback _valueCallbackRfidReader;
    YEventCallback  _eventCallback;
    bool            _isFirstCb;
    int             _prevCbPos;
    int             _eventPos;
    int             _eventStamp;
//--- (end of generated code: YRfidReader attributes declaration)
}
// Constructor is protected, use yFindRfidReader factory function to instantiate
-(id)    initWith:(NSString*) func;

//--- (generated code: YRfidReader private methods declaration)
// Function-specific method for parsing of JSON output and caching result
-(int)             _parseAttr:(yJsonStateMachine*) j;

//--- (end of generated code: YRfidReader private methods declaration)
//--- (generated code: YRfidReader yapiwrapper declaration)
//--- (end of generated code: YRfidReader yapiwrapper declaration)
//--- (generated code: YRfidReader public methods declaration)
/**
 * Returns the number of RFID tags currently detected.
 *
 * @return an integer corresponding to the number of RFID tags currently detected
 *
 * On failure, throws an exception or returns YRfidReader.NTAGS_INVALID.
 */
-(int)     get_nTags;


-(int) nTags;
/**
 * Returns the tag list refresh rate, measured in Hz.
 *
 * @return an integer corresponding to the tag list refresh rate, measured in Hz
 *
 * On failure, throws an exception or returns YRfidReader.REFRESHRATE_INVALID.
 */
-(int)     get_refreshRate;


-(int) refreshRate;
/**
 * Changes the present tag list refresh rate, measured in Hz. The reader will do
 * its best to respect it. Note that the reader cannot detect tag arrival or removal
 * while it is  communicating with a tag.  Maximum frequency is limited to 100Hz,
 * but in real life it will be difficult to do better than 50Hz.  A zero value
 * will power off the device radio.
 * Remember to call the saveToFlash() method of the module if the
 * modification must be kept.
 *
 * @param newval : an integer corresponding to the present tag list refresh rate, measured in Hz
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code.
 */
-(int)     set_refreshRate:(int) newval;
-(int)     setRefreshRate:(int) newval;

/**
 * Retrieves a RFID reader for a given identifier.
 * The identifier can be specified using several formats:
 *
 * - FunctionLogicalName
 * - ModuleSerialNumber.FunctionIdentifier
 * - ModuleSerialNumber.FunctionLogicalName
 * - ModuleLogicalName.FunctionIdentifier
 * - ModuleLogicalName.FunctionLogicalName
 *
 *
 * This function does not require that the RFID reader is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YRfidReader.isOnline() to test if the RFID reader is
 * indeed online at a given time. In case of ambiguity when looking for
 * a RFID reader by logical name, no error is notified: the first instance
 * found is returned. The search is performed first by hardware name,
 * then by logical name.
 *
 * If a call to this object's is_online() method returns FALSE although
 * you are certain that the matching device is plugged, make sure that you did
 * call registerHub() at application initialization time.
 *
 * @param func : a string that uniquely characterizes the RFID reader, for instance
 *         MyDevice.rfidReader.
 *
 * @return a YRfidReader object allowing you to drive the RFID reader.
 */
+(YRfidReader*)     FindRfidReader:(NSString*)func;

/**
 * Registers the callback function that is invoked on every change of advertised value.
 * The callback is then invoked only during the execution of ySleep or yHandleEvents.
 * This provides control over the time when the callback is triggered. For good responsiveness,
 * remember to call one of these two functions periodically. The callback is called once juste after beeing
 * registered, passing the current advertised value  of the function, provided that it is not an empty string.
 * To unregister a callback, pass a nil pointer as argument.
 *
 * @param callback : the callback function to call, or a nil pointer. The callback function should take two
 *         arguments: the function object of which the value has changed, and the character string describing
 *         the new advertised value.
 * @noreturn
 */
-(int)     registerValueCallback:(YRfidReaderValueCallback _Nullable)callback;

-(int)     _invokeValueCallback:(NSString*)value;

-(int)     _chkerror:(NSString*)tagId :(NSData*)json :(YRfidStatus*)status;

-(int)     reset;

/**
 * Returns the list of RFID tags currently detected by the reader.
 *
 * @return a list of strings, corresponding to each tag identifier (UID).
 *
 * On failure, throws an exception or returns an empty list.
 */
-(NSMutableArray*)     get_tagIdList;

/**
 * Returns a description of the properties of an existing RFID tag.
 * This function can cause communications with the tag.
 *
 * @param tagId : identifier of the tag to check
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return a YRfidTagInfo object.
 *
 * On failure, throws an exception or returns an empty YRfidTagInfo objact.
 * When it happens, you can get more information from the status object.
 */
-(YRfidTagInfo*)     get_tagInfo:(NSString*)tagId :(YRfidStatus*)status;

/**
 * Changes an RFID tag configuration to prevents any further write to
 * the selected blocks. This operation is definitive and irreversible.
 * Depending on the tag type and block index, adjascent blocks may become
 * read-only as well, based on the locking granularity.  Note that some tags
 * may allow only a few blocks to be locked, for instance ST25DVxxx  tags
 * allows a lock on block 0 and 1 only.
 *
 *
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : first block to lock
 * @param nBlocks : number of blocks to lock
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagLockBlocks:(NSString*)tagId :(int)firstBlock :(int)nBlocks :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads the locked state for RFID tag memory data blocks.
 * FirstBlock cannot be a special block, and any special
 * block encountered in the middle of the read operation will be
 * skipped automatically.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : number of the first block to check
 * @param nBlocks : number of blocks to check
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return a list of booleans with the lock state of selected blocks
 *
 * On failure, throws an exception or returns an empty list. When it
 * happens, you can get more information from the status object.
 */
-(NSMutableArray*)     get_tagLockState:(NSString*)tagId :(int)firstBlock :(int)nBlocks :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Tells which block of a RFID tag memory are special and cannot be used
 * to store user data. Mistakely writing a special block can lead to
 * an irreversible alteration of the tag.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : number of the first block to check
 * @param nBlocks : number of blocks to check
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return a list of booleans with the lock state of selected blocks
 *
 * On failure, throws an exception or returns an empty list. When it
 * happens, you can get more information from the status object.
 */
-(NSMutableArray*)     get_tagSpecialBlocks:(NSString*)tagId :(int)firstBlock :(int)nBlocks :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads data from an RFID tag memory, as an hexadecimal string.
 * The read operation may span accross multiple blocks if the requested
 * number of bytes is larger than the RFID tag block size. By default
 * firstBlock cannot be a special block, and any special block encountered
 * in the middle of the read operation will be skipped automatically.
 * If you rather want to read special blocks, use the EnableRawAccess
 * field from the options parameter.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where read should start
 * @param nBytes : total number of bytes to read
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return an hexadecimal string if the call succeeds.
 *
 * On failure, throws an exception or returns an empty binary buffer. When it
 * happens, you can get more information from the status object.
 */
-(NSString*)     tagReadHex:(NSString*)tagId :(int)firstBlock :(int)nBytes :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads data from an RFID tag memory, as a binary buffer. The read operation
 * may span accross multiple blocks if the requested number of bytes
 * is larger than the RFID tag block size.  By default
 * firstBlock cannot be a special block, and any special block encountered
 * in the middle of the read operation will be skipped automatically.
 * If you rather want to read special blocks, use the EnableRawAccess
 * field frrm the options parameter.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where read should start
 * @param nBytes : total number of bytes to read
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return a binary object with the data read if the call succeeds.
 *
 * On failure, throws an exception or returns an empty binary buffer. When it
 * happens, you can get more information from the status object.
 */
-(NSMutableData*)     tagReadBin:(NSString*)tagId :(int)firstBlock :(int)nBytes :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads data from an RFID tag memory, as a byte list. The read operation
 * may span accross multiple blocks if the requested number of bytes
 * is larger than the RFID tag block size.  By default
 * firstBlock cannot be a special block, and any special block encountered
 * in the middle of the read operation will be skipped automatically.
 * If you rather want to read special blocks, use the EnableRawAccess
 * field from the options parameter.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where read should start
 * @param nBytes : total number of bytes to read
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return a byte list with the data read if the call succeeds.
 *
 * On failure, throws an exception or returns an empty list. When it
 * happens, you can get more information from the status object.
 */
-(NSMutableArray*)     tagReadArray:(NSString*)tagId :(int)firstBlock :(int)nBytes :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads data from an RFID tag memory, as a text string. The read operation
 * may span accross multiple blocks if the requested number of bytes
 * is larger than the RFID tag block size.  By default
 * firstBlock cannot be a special block, and any special block encountered
 * in the middle of the read operation will be skipped automatically.
 * If you rather want to read special blocks, use the EnableRawAccess
 * field from the options parameter.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where read should start
 * @param nChars : total number of characters to read
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return a text string with the data read if the call succeeds.
 *
 * On failure, throws an exception or returns an empty string. When it
 * happens, you can get more information from the status object.
 */
-(NSString*)     tagReadStr:(NSString*)tagId :(int)firstBlock :(int)nChars :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Writes data provided as a binary buffer to an RFID tag memory.
 * The write operation may span accross multiple blocks if the
 * number of bytes to write is larger than the RFID tag block size.
 * By default firstBlock cannot be a special block, and any special block
 * encountered in the middle of the write operation will be skipped
 * automatically. The last data block affected by the operation will
 * be automatically padded with zeros if neccessary.  If you rather want
 * to rewrite special blocks as well,
 * use the EnableRawAccess field from the options parameter.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where write should start
 * @param buff : the binary buffer to write
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagWriteBin:(NSString*)tagId :(int)firstBlock :(NSData*)buff :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Writes data provided as a list of bytes to an RFID tag memory.
 * The write operation may span accross multiple blocks if the
 * number of bytes to write is larger than the RFID tag block size.
 * By default firstBlock cannot be a special block, and any special block
 * encountered in the middle of the write operation will be skipped
 * automatically. The last data block affected by the operation will
 * be automatically padded with zeros if neccessary.
 * If you rather want to rewrite special blocks as well,
 * use the EnableRawAccess field from the options parameter.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where write should start
 * @param byteList : a list of byte to write
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagWriteArray:(NSString*)tagId :(int)firstBlock :(NSMutableArray*)byteList :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Writes data provided as an hexadecimal string to an RFID tag memory.
 * The write operation may span accross multiple blocks if the
 * number of bytes to write is larger than the RFID tag block size.
 * By default firstBlock cannot be a special block, and any special block
 * encountered in the middle of the write operation will be skipped
 * automatically. The last data block affected by the operation will
 * be automatically padded with zeros if neccessary.
 * If you rather want to rewrite special blocks as well,
 * use the EnableRawAccess field from the options parameter.
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where write should start
 * @param hexString : a string of hexadecimal byte codes to write
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagWriteHex:(NSString*)tagId :(int)firstBlock :(NSString*)hexString :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Writes data provided as an ASCII string to an RFID tag memory.
 * The write operation may span accross multiple blocks if the
 * number of bytes to write is larger than the RFID tag block size.
 * Note that only the characters present in the provided string
 * will be written, there is no notion of string length. If your
 * string data have variable length, you'll have to encode the
 * string length yourself, with a terminal zero for instannce.
 *
 * This function only works with ISO-latin characters, if you wish to
 * write strings encoded with alternate character sets, you'll have to
 * use tagWriteBin() function.
 *
 * By default firstBlock cannot be a special block, and any special block
 * encountered in the middle of the write operation will be skipped
 * automatically. The last data block affected by the operation will
 * be automatically padded with zeros if neccessary.
 * If you rather want to rewrite special blocks as well,
 * use the EnableRawAccess field from the options parameter
 * (definitely not recommanded).
 *
 * @param tagId : identifier of the tag to use
 * @param firstBlock : block number where write should start
 * @param text : the text string to write
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagWriteStr:(NSString*)tagId :(int)firstBlock :(NSString*)text :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Writes data provided as a binary object to an RFID tag, using NFC
 * compatible encoding.
 * The function will automatically create a NFC Capability Container,
 * and encapsulate the content with the required NDEF header corresponding
 * to the given content type.
 *
 * @param tagId : identifier of the tag to use
 * @param ndefType : the content type, either "U" for a URL, or a
 *         generic MIME type like "text/vcard"
 * @param payload : the payload of the NDEF record
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagWriteBinNFC:(NSString*)tagId :(NSString*)ndefType :(NSData*)payload :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Writes an URL to an RFID tag using NFC compatible encoding, so that
 * mobile phones with NFC support automatically offer to open
 * the URL when reading the tag.
 *
 * @param tagId : identifier of the tag to use
 * @param url : the URL to write on the tag
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagWriteUrlNFC:(NSString*)tagId :(NSString*)url :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Writes WiFi settings to an RFID tag using NFC compatible encoding, so that
 * mobile phones with NFC support automatically offer to connect to this WiFi
 * network.
 *
 * @param tagId : identifier of the tag to use
 * @param ssid : the SSID of the WiFi network to connect to
 * @param auth : the network authentication type (currently always "WPA2")
 * @param secret : the network password
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagWriteWifiConfigNFC:(NSString*)tagId :(NSString*)ssid :(NSString*)auth :(NSString*)secret :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads an RFID tag AFI byte (ISO 15693 only).
 *
 * @param tagId : identifier of the tag to use
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return the AFI value (0...255)
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagGetAFI:(NSString*)tagId :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads a byte from the Tag configuration (ISO 15693 ST25DVxx only).
 * This function is actually a call to the 0xA0 RFID command and is specific to
 * ST25DVxx tags. Check ST25DVxx datasheet for more information about
 * the data organisation of ST25DVxx tags configuration.
 *
 * @param tagId : identifier of the tag to use
 * @param addr  : offset of the byte in the tag configuation
 *
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return the requested byte value (0...255)
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagGetConfigByte:(NSString*)tagId :(int)addr :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Changes a byte in the tag's configuration (ISO 15693 ST25DVxx only).
 * Warning: modifing the tag configation may alter its behavior in a non-reversible way.
 * This operation requires the CONFIG_PWD password to be set in the options,
 * default value is "0000000000000000" (16 zeros). This function is actually
 * a call to the 0xA1 RFID command and is specific to ST25DVxx tags. Check
 * ST25DVxx datasheet for more information about the data organisation
 * of ST25DVxx tags configuration.
 *
 * @param tagId : identifier of the tag to use
 * @param addr  : address of the byte to write
 * @param value : the value to write (0...255)
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagSetConfigByte:(NSString*)tagId :(int)addr :(int)value :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Set a password that will be required to access the tag  (ISO 15693 ST25DVxx only).
 * The password must be a string of characters representing 8 bytes in hexadecimal.
 * There are several types of password for the same tag; please consult your tags
 * documentation to understand their respective applications. Once the password
 * has been configured, operations requiring this password must be initiated with
 * the password defined in the KeyType and HexKey fields of the
 * options parameter for the operations in question. It is not necessarily
 * required to consistently provide the same password for every operation during the
 * same session with a tag.
 *
 * @param tagId : identifier of the tag to use
 * @param passwordType  : type of password to be set (YRfidOptions.ST25D_CONFIG_PWD,YRfidOptions.ST25D_PWD1,YRfidOptions.ST25D_PWD2..)
 * @param password : the password (16 characters hex string encoding 8 bytes)
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagSetPassword:(NSString*)tagId :(int)passwordType :(NSString*)password :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Changes an RFID tag AFI byte (ISO 15693 only).
 *
 * @param tagId : identifier of the tag to use
 * @param afi : the AFI value to write (0...255)
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagSetAFI:(NSString*)tagId :(int)afi :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Locks the RFID tag AFI byte (ISO 15693 only).
 * This operation is definitive and irreversible.
 *
 * @param tagId : identifier of the tag to use
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagLockAFI:(NSString*)tagId :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Reads an RFID tag DSFID byte (ISO 15693 only).
 *
 * @param tagId : identifier of the tag to use
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return the DSFID value (0...255)
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagGetDSFID:(NSString*)tagId :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Changes an RFID tag DSFID byte (ISO 15693 only).
 *
 * @param tagId : identifier of the tag to use
 * @param dsfid : the DSFID value to write (0...255)
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagSetDSFID:(NSString*)tagId :(int)dsfid :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Locks the RFID tag DSFID byte (ISO 15693 only).
 * This operation is definitive and irreversible.
 *
 * @param tagId : identifier of the tag to use
 * @param options : an YRfidOptions object with the optional
 *         command execution parameters, such as security key
 *         if required
 * @param status : an RfidStatus object that will contain
 *         the detailled status of the operation
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code. When it
 * happens, you can get more information from the status object.
 */
-(int)     tagLockDSFID:(NSString*)tagId :(YRfidOptions*)options :(YRfidStatus*)status;

/**
 * Returns a string with last tag arrival/removal events observed.
 * This method return only events that are still buffered in the device memory.
 *
 * @return a string with last events observed (one per line).
 *
 * On failure, throws an exception or returns  YAPI_INVALID_STRING.
 */
-(NSString*)     get_lastEvents;

/**
 * Registers a callback function to be called each time that an RFID tag appears or
 * disappears. The callback is invoked only during the execution of
 * ySleep or yHandleEvents. This provides control over the time when
 * the callback is triggered. For good responsiveness, remember to call one of these
 * two functions periodically. To unregister a callback, pass a nil pointer as argument.
 *
 * @param callback : the callback function to call, or a nil pointer.
 *         The callback function should take four arguments:
 *         the YRfidReader object that emitted the event, the
 *         UTC timestamp of the event, a character string describing
 *         the type of event ("+" or "-") and a character string with the
 *         RFID tag identifier.
 *         On failure, throws an exception or returns a negative error code.
 */
-(int)     registerEventCallback:(YEventCallback _Nullable)callback;

-(int)     _internalEventHandler:(NSString*)cbVal;


/**
 * Continues the enumeration of RFID readers started using yFirstRfidReader().
 * Caution: You can't make any assumption about the returned RFID readers order.
 * If you want to find a specific a RFID reader, use RfidReader.findRfidReader()
 * and a hardwareID or a logical name.
 *
 * @return a pointer to a YRfidReader object, corresponding to
 *         a RFID reader currently online, or a nil pointer
 *         if there are no more RFID readers to enumerate.
 */
-(nullable YRfidReader*) nextRfidReader
NS_SWIFT_NAME(nextRfidReader());
/**
 * Starts the enumeration of RFID readers currently accessible.
 * Use the method YRfidReader.nextRfidReader() to iterate on
 * next RFID readers.
 *
 * @return a pointer to a YRfidReader object, corresponding to
 *         the first RFID reader currently online, or a nil pointer
 *         if there are none.
 */
+(nullable YRfidReader*) FirstRfidReader
NS_SWIFT_NAME(FirstRfidReader());
//--- (end of generated code: YRfidReader public methods declaration)

@end

//--- (generated code: YRfidReader functions declaration)
/**
 * Retrieves a RFID reader for a given identifier.
 * The identifier can be specified using several formats:
 *
 * - FunctionLogicalName
 * - ModuleSerialNumber.FunctionIdentifier
 * - ModuleSerialNumber.FunctionLogicalName
 * - ModuleLogicalName.FunctionIdentifier
 * - ModuleLogicalName.FunctionLogicalName
 *
 *
 * This function does not require that the RFID reader is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YRfidReader.isOnline() to test if the RFID reader is
 * indeed online at a given time. In case of ambiguity when looking for
 * a RFID reader by logical name, no error is notified: the first instance
 * found is returned. The search is performed first by hardware name,
 * then by logical name.
 *
 * If a call to this object's is_online() method returns FALSE although
 * you are certain that the matching device is plugged, make sure that you did
 * call registerHub() at application initialization time.
 *
 * @param func : a string that uniquely characterizes the RFID reader, for instance
 *         MyDevice.rfidReader.
 *
 * @return a YRfidReader object allowing you to drive the RFID reader.
 */
YRfidReader* yFindRfidReader(NSString* func);
/**
 * Starts the enumeration of RFID readers currently accessible.
 * Use the method YRfidReader.nextRfidReader() to iterate on
 * next RFID readers.
 *
 * @return a pointer to a YRfidReader object, corresponding to
 *         the first RFID reader currently online, or a nil pointer
 *         if there are none.
 */
YRfidReader* yFirstRfidReader(void);

//--- (end of generated code: YRfidReader functions declaration)

NS_ASSUME_NONNULL_END
CF_EXTERN_C_END

