SYNOPSIS
rdrhandle.processingComplete = function(rdrhandle, res [, data])
DESCRIPTION
This callback is run whenever a chip card access completes. res is zero on success and contains an
error code on error. If the chip access has provided some data (e.g. v4kf:chipRead()), then the
data parameter is a string containing the data.
BUGS
The res parameter needs to be explained.