-
-local library = {
- -- This function does a connect.
- -- @param dont_disconnect - if true, does not disable the field
- read1443a = function(dont_disconnect)
-
- local command, result, info, err, data
-
- command = Command:new{cmd = cmds.CMD_READER_ISO_14443a,
- arg1 = ISO14A_COMMAND.ISO14A_CONNECT}
- if dont_disconnect then
- command.arg1 = command.arg1 + ISO14A_COMMAND.ISO14A_NO_DISCONNECT
- end
- local result,err = sendToDevice(command)
- if result then
- local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',result)
- if arg0 == 0 then
- return nil, "iso14443a card select failed"
- end
- data = string.sub(result,count)
- info, err = parse1443a(data)
- else
- err ="No response from card"
+-- This function does a connect and retrieves som einfo
+-- @param dont_disconnect - if true, does not disable the field
+-- @return if successfull: an table containing card info
+-- @return if unsuccessfull : nil, error
+local function read14443a(dont_disconnect)
+ local command, result, info, err, data
+
+ command = Command:new{cmd = cmds.CMD_READER_ISO_14443a,
+ arg1 = ISO14A_COMMAND.ISO14A_CONNECT}
+ if dont_disconnect then
+ command.arg1 = command.arg1 + ISO14A_COMMAND.ISO14A_NO_DISCONNECT
+ end
+ local result,err = sendToDevice(command)
+ if result then
+ local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',result)
+ if arg0 == 0 then
+ return nil, "iso14443a card select failed"