init(source:)
Initializes a TKSmartCardATR object from a provided data source.
Declaration
init?(source: @escaping () -> Int32)Parameters
- source:
The block providing a stream of data for an ATR.
The block takes no arguments and returns one byte. To indicate that an error occured, the block returns
-1.
Return Value
A TKSmartCardATR object initialized with the parsed data. If the byte stream produces an error or does not contain a valid ATR, returns nil.