CHG: the new NTAG_i2c_1K enums, broke the uint16_t size.. Had to go up one level.

[proxmark3-svn] / client / cmdlf.c

diff --git a/client/cmdlf.c b/client/cmdlf.c
index 79d6787bdee601a4abf49d5accb49288ffaa4460..7c5d273ff175da047df06b0a06af48c67df4f679 100644 (file)
--- a/client/cmdlf.c
+++ b/client/cmdlf.c
@@ -362,6 +362,7 @@ int usage_lf_read()
        PrintAndLog("Usage: lf read");
        PrintAndLog("Options:        ");
        PrintAndLog("       h            This help");
        PrintAndLog("Usage: lf read");
        PrintAndLog("Options:        ");
        PrintAndLog("       h            This help");

+       PrintAndLog("       s            silent run no printout");

        PrintAndLog("This function takes no arguments. ");
        PrintAndLog("Use 'lf config' to set parameters.");
        return 0;
        PrintAndLog("This function takes no arguments. ");
        PrintAndLog("Use 'lf config' to set parameters.");
        return 0;


@@ -481,15 +482,22 @@ int CmdLFSetConfig(const char *Cmd)
 int CmdLFRead(const char *Cmd)
 {
 
 int CmdLFRead(const char *Cmd)
 {
 

-       uint8_t cmdp =0;
-       if(param_getchar(Cmd, cmdp) == 'h')
+       uint8_t cmdp = 0;
+       bool arg1 = false;
+       if (param_getchar(Cmd, cmdp) == 'h')

        {
                return usage_lf_read();
        }
        {
                return usage_lf_read();
        }

+       if (param_getchar(Cmd, cmdp) == 's') arg1 = true; //suppress print

        //And ship it to device
        //And ship it to device

-       UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K};
+       UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};

        SendCommand(&c);
        SendCommand(&c);

-       WaitForResponse(CMD_ACK,NULL);
+       //WaitForResponse(CMD_ACK,NULL);        
+       if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
+               PrintAndLog("command execution time out");
+               return 1;
+       }
+

        return 0;
 }
 
        return 0;
 }
 


@@ -519,7 +527,8 @@ static void ChkBitstream(const char *str)
     }
   }
 }
     }
   }
 }

-//appears to attempt to simulate manchester
+//Attempt to simulate any wave in buffer (one bit per output sample)
+// converts GraphBuffer to bitstream (based on zero crossings) if needed.

 int CmdLFSim(const char *Cmd)
 {
   int i,j;
 int CmdLFSim(const char *Cmd)
 {
   int i,j;


@@ -527,11 +536,11 @@ int CmdLFSim(const char *Cmd)
 
   sscanf(Cmd, "%i", &gap);
 
 
   sscanf(Cmd, "%i", &gap);
 

-  /* convert to bitstream if necessary */
+       // convert to bitstream if necessary 

 
   ChkBitstream(Cmd);
 
 
   ChkBitstream(Cmd);
 

-  //can send 512 bits at a time (1 byte sent per bit...)
+       //can send only 512 bits at a time (1 byte sent per bit...)

   printf("Sending [%d bytes]", GraphTraceLen);
   for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
     UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};
   printf("Sending [%d bytes]", GraphTraceLen);
   for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
     UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};


@@ -570,12 +579,13 @@ int usage_lf_simfsk(void)
 int usage_lf_simask(void)
 {
   //print help
 int usage_lf_simask(void)
 {
   //print help

-  PrintAndLog("Usage: lf simask [c <clock>] [i] [m|r] [s] [d <raw hex to sim>]");
+  PrintAndLog("Usage: lf simask [c <clock>] [i] [b|m|r] [s] [d <raw hex to sim>]");

   PrintAndLog("Options:        ");
   PrintAndLog("       h              This help");
   PrintAndLog("       c <clock>      Manually set clock - can autodetect if using DemodBuffer");
   PrintAndLog("       i              invert data");
   PrintAndLog("Options:        ");
   PrintAndLog("       h              This help");
   PrintAndLog("       c <clock>      Manually set clock - can autodetect if using DemodBuffer");
   PrintAndLog("       i              invert data");

-  PrintAndLog("       m              sim ask/manchester");
+  PrintAndLog("       b              sim ask/biphase");
+  PrintAndLog("       m              sim ask/manchester - Default");

   PrintAndLog("       r              sim ask/raw");
   PrintAndLog("       s              TBD- -to enable a gap between playback repetitions - default: no gap");
   PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");
   PrintAndLog("       r              sim ask/raw");
   PrintAndLog("       s              TBD- -to enable a gap between playback repetitions - default: no gap");
   PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");


@@ -602,8 +612,8 @@ int usage_lf_simpsk(void)
 // - allow pull data from DemodBuffer
 int CmdLFfskSim(const char *Cmd)
 {
 // - allow pull data from DemodBuffer
 int CmdLFfskSim(const char *Cmd)
 {

-  //might be able to autodetect FC and clock from Graphbuffer if using demod buffer
-  //will need FChigh, FClow, Clock, and bitstream
+       //might be able to autodetect FCs and clock from Graphbuffer if using demod buffer
+       // otherwise will need FChigh, FClow, Clock, and bitstream

   uint8_t fcHigh=0, fcLow=0, clk=0;
   uint8_t invert=0;
   bool errors = FALSE;
   uint8_t fcHigh=0, fcLow=0, clk=0;
   uint8_t invert=0;
   bool errors = FALSE;


@@ -678,6 +688,8 @@ int CmdLFfskSim(const char *Cmd)
   } else {
     setDemodBuf(data, dataLen, 0);
   }
   } else {
     setDemodBuf(data, dataLen, 0);
   }

+
+       //default if not found

   if (clk == 0) clk = 50;
   if (fcHigh == 0) fcHigh = 10;
   if (fcLow == 0) fcLow = 8;
   if (clk == 0) clk = 50;
   if (fcHigh == 0) fcHigh = 10;
   if (fcLow == 0) fcLow = 8;


@@ -702,9 +714,8 @@ int CmdLFfskSim(const char *Cmd)
 int CmdLFaskSim(const char *Cmd)
 {
   //autodetect clock from Graphbuffer if using demod buffer
 int CmdLFaskSim(const char *Cmd)
 {
   //autodetect clock from Graphbuffer if using demod buffer

-  //will need clock, invert, manchester/raw as m or r, separator as s, and bitstream
-  uint8_t manchester = 1, separator = 0;
-  //char cmdp = Cmd[0], par3='m', par4=0;
+       // needs clock, invert, manchester/raw as m or r, separator as s, and bitstream
+  uint8_t encoding = 1, separator = 0;

   uint8_t clk=0, invert=0;
   bool errors = FALSE;
   char hexData[32] = {0x00}; 
   uint8_t clk=0, invert=0;
   bool errors = FALSE;
   char hexData[32] = {0x00}; 


@@ -725,12 +736,16 @@ int CmdLFaskSim(const char *Cmd)
       errors |= param_getdec(Cmd,cmdp+1,&clk);
       cmdp+=2;
       break;
       errors |= param_getdec(Cmd,cmdp+1,&clk);
       cmdp+=2;
       break;

+    case 'b':
+      encoding=2; //biphase
+      cmdp++;
+      break;

     case 'm':
     case 'm':

-      manchester=1;
+      encoding=1;

       cmdp++;
       break;
     case 'r':
       cmdp++;
       break;
     case 'r':

-      manchester=0;
+      encoding=0;

       cmdp++;
       break;
     case 's':
       cmdp++;
       break;
     case 's':


@@ -771,10 +786,10 @@ int CmdLFaskSim(const char *Cmd)
     setDemodBuf(data, dataLen, 0);
   }
   if (clk == 0) clk = 64;
     setDemodBuf(data, dataLen, 0);
   }
   if (clk == 0) clk = 64;

-  if (manchester == 0) clk = clk/2; //askraw needs to double the clock speed
+  if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed

   uint16_t arg1, arg2;
   size_t size=DemodBufferLen;
   uint16_t arg1, arg2;
   size_t size=DemodBufferLen;

-  arg1 = clk << 8 | manchester;
+  arg1 = clk << 8 | encoding;

   arg2 = invert << 8 | separator;
   if (size > USB_CMD_DATA_SIZE) {
     PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
   arg2 = invert << 8 | separator;
   if (size > USB_CMD_DATA_SIZE) {
     PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);


@@ -905,30 +920,6 @@ int CmdLFSimBidir(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

-/* simulate an LF Manchester encoded tag with specified bitstream, clock rate and inter-id gap */
-/*
-int CmdLFSimManchester(const char *Cmd)
-{
-  static int clock, gap;
-  static char data[1024], gapstring[8];
-
-  sscanf(Cmd, "%i %s %i", &clock, &data[0], &gap);
-
-  ClearGraph(0);
-
-  for (int i = 0; i < strlen(data) ; ++i)
-    AppendGraph(0, clock, data[i]- '0');
-
-  CmdManchesterMod("");
-
-  RepaintGraphWindow();
-
-  sprintf(&gapstring[0], "%i", gap);
-  CmdLFSim(gapstring);
-  return 0;
-}
-*/
-

 int CmdVchDemod(const char *Cmd)
 {
   // Is this the entire sync pattern, or does this also include some
 int CmdVchDemod(const char *Cmd)
 {
   // Is this the entire sync pattern, or does this also include some


@@ -1011,7 +1002,7 @@ int CmdLFfind(const char *Cmd)
   int ans=0;
   char cmdp = param_getchar(Cmd, 0);
   char testRaw = param_getchar(Cmd, 1);
   int ans=0;
   char cmdp = param_getchar(Cmd, 0);
   char testRaw = param_getchar(Cmd, 1);

-  if (strlen(Cmd) > 2 || cmdp == 'h' || cmdp == 'H') {
+  if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {

     PrintAndLog("Usage:  lf search <0|1> [u]");
     PrintAndLog("     <use data from Graphbuffer> , if not set, try reading data from tag.");
     PrintAndLog("     [Search for Unknown tags] , if not set, reads only known tags.");
     PrintAndLog("Usage:  lf search <0|1> [u]");
     PrintAndLog("     <use data from Graphbuffer> , if not set, try reading data from tag.");
     PrintAndLog("     [Search for Unknown tags] , if not set, reads only known tags.");


@@ -1020,82 +1011,133 @@ int CmdLFfind(const char *Cmd)
     PrintAndLog("          : lf search 1   = use data from GraphBuffer & search for known tags");
     PrintAndLog("          : lf search u   = try reading data from tag & search for known and unknown tags");
     PrintAndLog("          : lf search 1 u = use data from GraphBuffer & search for known and unknown tags");
     PrintAndLog("          : lf search 1   = use data from GraphBuffer & search for known tags");
     PrintAndLog("          : lf search u   = try reading data from tag & search for known and unknown tags");
     PrintAndLog("          : lf search 1 u = use data from GraphBuffer & search for known and unknown tags");

-

     return 0;
   }
 
   if (!offline && (cmdp != '1')){
     return 0;
   }
 
   if (!offline && (cmdp != '1')){

-    ans=CmdLFRead("");
-    ans=CmdSamples("20000");
+               CmdLFRead("s");
+               getSamples("30000",false);

   } else if (GraphTraceLen < 1000) {
     PrintAndLog("Data in Graphbuffer was too small.");
     return 0;
   }
   if (cmdp == 'u' || cmdp == 'U') testRaw = 'u';
   } else if (GraphTraceLen < 1000) {
     PrintAndLog("Data in Graphbuffer was too small.");
     return 0;
   }
   if (cmdp == 'u' || cmdp == 'U') testRaw = 'u';

+

   PrintAndLog("NOTE: some demods output possible binary\n  if it finds something that looks like a tag");
   PrintAndLog("False Positives ARE possible\n");  
   PrintAndLog("\nChecking for known tags:\n");
   PrintAndLog("NOTE: some demods output possible binary\n  if it finds something that looks like a tag");
   PrintAndLog("False Positives ARE possible\n");  
   PrintAndLog("\nChecking for known tags:\n");

+

   ans=CmdFSKdemodIO("");
   ans=CmdFSKdemodIO("");

+  

   if (ans>0) {
     PrintAndLog("\nValid IO Prox ID Found!");
     return 1;
   }
   if (ans>0) {
     PrintAndLog("\nValid IO Prox ID Found!");
     return 1;
   }

+

   ans=CmdFSKdemodPyramid("");
   if (ans>0) {
     PrintAndLog("\nValid Pyramid ID Found!");
     return 1;
   }
   ans=CmdFSKdemodPyramid("");
   if (ans>0) {
     PrintAndLog("\nValid Pyramid ID Found!");
     return 1;
   }

+

   ans=CmdFSKdemodParadox("");
   if (ans>0) {
     PrintAndLog("\nValid Paradox ID Found!");
     return 1;
   }
   ans=CmdFSKdemodParadox("");
   if (ans>0) {
     PrintAndLog("\nValid Paradox ID Found!");
     return 1;
   }

+

   ans=CmdFSKdemodAWID("");
   if (ans>0) {
     PrintAndLog("\nValid AWID ID Found!");
     return 1;
   }
   ans=CmdFSKdemodAWID("");
   if (ans>0) {
     PrintAndLog("\nValid AWID ID Found!");
     return 1;
   }

+

   ans=CmdFSKdemodHID("");
   if (ans>0) {
     PrintAndLog("\nValid HID Prox ID Found!");
     return 1;
   }
   ans=CmdFSKdemodHID("");
   if (ans>0) {
     PrintAndLog("\nValid HID Prox ID Found!");
     return 1;
   }

+

   //add psk and indala
   ans=CmdIndalaDecode("");
   if (ans>0) {
     PrintAndLog("\nValid Indala ID Found!");
     return 1;
   }
   //add psk and indala
   ans=CmdIndalaDecode("");
   if (ans>0) {
     PrintAndLog("\nValid Indala ID Found!");
     return 1;
   }

+

   ans=CmdAskEM410xDemod("");
   if (ans>0) {
     PrintAndLog("\nValid EM410x ID Found!");
     return 1;
   }
   ans=CmdAskEM410xDemod("");
   if (ans>0) {
     PrintAndLog("\nValid EM410x ID Found!");
     return 1;
   }

+

   ans=CmdG_Prox_II_Demod("");
   if (ans>0) {
     PrintAndLog("\nValid G Prox II ID Found!");
     return 1;
   }
   ans=CmdG_Prox_II_Demod("");
   if (ans>0) {
     PrintAndLog("\nValid G Prox II ID Found!");
     return 1;
   }

+
+       ans=EM4x50Read("", false);
+       if (ans>0) {
+               PrintAndLog("\nValid EM4x50 ID Found!");
+               return 1;
+       }       
+
+       ans=CmdPSKNexWatch("");
+       if (ans>0) {
+               PrintAndLog("\nValid NexWatch ID Found!");
+               return 1;
+       }
+

   PrintAndLog("\nNo Known Tags Found!\n");
   if (testRaw=='u' || testRaw=='U'){
     //test unknown tag formats (raw mode)
     PrintAndLog("\nChecking for Unknown tags:\n");
   PrintAndLog("\nNo Known Tags Found!\n");
   if (testRaw=='u' || testRaw=='U'){
     //test unknown tag formats (raw mode)
     PrintAndLog("\nChecking for Unknown tags:\n");

-    ans=CmdDetectClockRate("f");
+    ans=AutoCorrelate(4000, FALSE, FALSE);
+       
+    if (ans > 0) {
+
+               PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);
+
+               if ( ans % 8 == 0)  {
+                       int bytes = (ans / 8);
+                       PrintAndLog("Possible %d bytes", bytes);
+                       int blocks = 0;
+                       if ( bytes % 2 == 0) {
+                               blocks = (bytes / 2);   
+                               PrintAndLog("Possible  2 blocks, width %d", blocks);
+                       }
+                       if ( bytes % 4 == 0) {
+                               blocks = (bytes / 4);   
+                               PrintAndLog("Possible  4 blocks, width %d", blocks);
+                       }
+                       if ( bytes % 8 == 0) {
+                               blocks = (bytes / 8);   
+                               PrintAndLog("Possible  8 blocks, width %d", blocks);
+                       }
+                       if ( bytes % 16 == 0) {
+                               blocks = (bytes / 16);  
+                               PrintAndLog("Possible 16 blocks, width %d", blocks);
+                       }
+               }
+       }
+               ans=GetFskClock("",FALSE,FALSE); 

     if (ans != 0){ //fsk
     if (ans != 0){ //fsk

-      ans=CmdFSKrawdemod("");
+                       ans=FSKrawDemod("",TRUE);

       if (ans>0) {
         PrintAndLog("\nUnknown FSK Modulated Tag Found!");
         return 1;
       }
     }
       if (ans>0) {
         PrintAndLog("\nUnknown FSK Modulated Tag Found!");
         return 1;
       }
     }

-    ans=Cmdaskmandemod("");
+               ans=ASKDemod("0 0 0",TRUE,FALSE,1);

     if (ans>0) {
       PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");
     if (ans>0) {
       PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");

+      PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'");

       return 1;
     }
     ans=CmdPSK1rawDemod("");
     if (ans>0) {
       return 1;
     }
     ans=CmdPSK1rawDemod("");
     if (ans>0) {

-      PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data psk2rawdemod'");
+      PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'");

       PrintAndLog("\nCould also be PSK3 - [currently not supported]");
       PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod");
       return 1;
       PrintAndLog("\nCould also be PSK3 - [currently not supported]");
       PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod");
       return 1;


@@ -1108,28 +1150,29 @@ int CmdLFfind(const char *Cmd)
 static command_t CommandTable[] = 
 {
   {"help",        CmdHelp,            1, "This help"},
 static command_t CommandTable[] = 
 {
   {"help",        CmdHelp,            1, "This help"},

-  {"cmdread",     CmdLFCommandRead,   0, "<off period> <'0' period> <'1' period> <command> ['h'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'h' for 134)"},

   {"em4x",        CmdLFEM4X,          1, "{ EM4X RFIDs... }"},
   {"em4x",        CmdLFEM4X,          1, "{ EM4X RFIDs... }"},

+  {"hid",         CmdLFHID,           1, "{ HID RFIDs... }"},
+  {"hitag",       CmdLFHitag,         1, "{ HITAG RFIDs... }"},
+  {"io",                 CmdLFIO,                1, "{ IOPROX RFIDs... }"},
+  {"pcf7931",     CmdLFPCF7931,       1, "{ PCF7931 RFIDs... }"},
+  {"ti",          CmdLFTI,            1, "{ TI RFIDs... }"},
+  {"t55xx",       CmdLFT55XX,         1, "{ T55X7 RFIDs... }"},
+

   {"config",      CmdLFSetConfig,     0, "Set config for LF sampling, bit/sample, decimation, frequency"},
   {"config",      CmdLFSetConfig,     0, "Set config for LF sampling, bit/sample, decimation, frequency"},

+ 
+  {"cmdread",     CmdLFCommandRead,   0, "<off period> <'0' period> <'1' period> <command> ['h' 134] \n\t\t-- Modulate LF reader field to send command before read (all periods in microseconds)"},

   {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},
   {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},

-  {"hid",         CmdLFHID,           1, "{ HID RFIDs... }"},
-  {"io",                 CmdLFIO,                1, "{ ioProx tags... }"},

   {"indalademod", CmdIndalaDemod,     1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},
   {"indalaclone", CmdIndalaClone,     0, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},
   {"indalademod", CmdIndalaDemod,     1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},
   {"indalaclone", CmdIndalaClone,     0, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},

-  {"read",        CmdLFRead,          0, "Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"},
-  {"search",      CmdLFfind,          1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) - 'u' to search for unknown tags"},
+  {"read",        CmdLFRead,          0, "['s' silent] Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"},
+  {"search",      CmdLFfind,          1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) \n\t\t- 'u' to search for unknown tags"},

   {"sim",         CmdLFSim,           0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},
   {"sim",         CmdLFSim,           0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},

-  {"simask",      CmdLFaskSim,        0, "[clock] [invert <1|0>] [manchester/raw <'m'|'r'>] [msg separator 's'] [d <hexdata>] -- Simulate LF ASK tag from demodbuffer or input"},
-  {"simfsk",      CmdLFfskSim,        0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] -- Simulate LF FSK tag from demodbuffer or input"},
-  {"simpsk",      CmdLFpskSim,        0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] -- Simulate LF PSK tag from demodbuffer or input"},
+  {"simask",      CmdLFaskSim,        0, "[clock] [invert <1|0>] [manchester/raw <'m'|'r'>] [msg separator 's'] [d <hexdata>] \n\t\t-- Simulate LF ASK tag from demodbuffer or input"},
+  {"simfsk",      CmdLFfskSim,        0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"},
+  {"simpsk",      CmdLFpskSim,        0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] \n\t\t-- Simulate LF PSK tag from demodbuffer or input"},

   {"simbidir",    CmdLFSimBidir,      0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},
   {"simbidir",    CmdLFSimBidir,      0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},

-  //{"simman",      CmdLFSimManchester, 0, "<Clock> <Bitstream> [GAP] Simulate arbitrary Manchester LF tag"},
-  {"snoop",       CmdLFSnoop,         0, "['l'|'h'|<divisor>] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"},
-  {"ti",          CmdLFTI,            1, "{ TI RFIDs... }"},
-  {"hitag",       CmdLFHitag,         1, "{ Hitag tags and transponders... }"},
+  {"snoop",       CmdLFSnoop,         0, "['l'|'h'|<divisor>] [trigger threshold] -- Snoop LF (l:125khz, h:134khz)"},

   {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},
   {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},

-  {"t55xx",       CmdLFT55XX,         1, "{ T55xx RFIDs... }"},
-  {"pcf7931",     CmdLFPCF7931,       1, "{PCF7931 RFIDs...}"},

   {NULL, NULL, 0, NULL}
 };
 
   {NULL, NULL, 0, NULL}
 };