public override CardReaderInfo GetReaderInventory()
{
CardReaderInfo cri = null;
string reader_name;
string chip_version;
string fw_version;
if (GetReaderInventory(out reader_name, out chip_version, out fw_version))
{
cri = new CardReaderInfo();
cri.sn = "N/A";
cri.firmware = fw_version;
cri.type = reader_name;
cri.manufacturer = "TransMac";
}
else if (!String.IsNullOrEmpty(reader_name))
{
if (reader_name != "UNKNOWN")
{
cri = new CardReaderInfo();
cri.sn = "N/A";
cri.firmware = "N/A";
cri.type = reader_name;
cri.manufacturer = "TransMac";
}
}
return(cri);
}
private bool ParseInventory(string serial, ref CardReaderInfo cri)
{
bool result = false;
if (!String.IsNullOrEmpty(serial))
{
int len = serial.Length;
int pos = serial.IndexOf(',');
if (pos > 0)
{
cri.type = serial.Substring(0, pos);
}
if (len > pos + 1)
{
int pos_next = serial.IndexOf(',', pos + 1);
if (pos_next > 0)
{
cri.firmware = serial.Substring(pos + 1, pos_next - pos - 1);
}
pos = serial.IndexOf('"', pos_next);
if (pos > 0)
{
if (len > pos + 1)
{
cri.manufacturer = serial.Substring(pos + 1, len - pos - 2);
result = true;
}
}
}
}
return(result);
}
public override CardReaderInfo GetReaderInventory()
{
const int RETRY_MAX = 3;
CardReaderInfo cri = null;
bool result = false;
byte[] reply = null;
try
{
lock (ReadWriteOperationLock)
{
for (int attempt = 0; attempt < RETRY_MAX; attempt++)
{
reply = serialPort.SendCmd(DDM845_COMMAND.READER_DEVICE_DESCRIPTORS);
if (reply != null && reply.Length > 0x40)
{
result = true;
break;
}
}
}
if (result)
{
cri = new CardReaderInfo();
ParseInventory(Encoding.ASCII.GetString(reply, 4, reply.Length - 5), ref cri);
lock (ReadWriteOperationLock)
{
for (int attempt = 0; attempt < RETRY_MAX; attempt++)
{
reply = serialPort.SendCmd(DDM845_COMMAND.READER_DEVICE_SERIAL);
if (reply != null && reply.Length > 0x0a)
{
result = true;
cri.sn = Encoding.ASCII.GetString(reply, 4, reply.Length - 5);
cri.sn = cri.sn.Replace(".", "");
break;
}
}
}
}
}
catch
{
cri = null;
}
return(cri);
}
