public static void Scan()
{
Communication.USBHost usbHost = new Communication.USBHost("/dev/ttyUSB0");
usbHost.Open();
if (usbHost.IsOpen)
{
FileStream fileStream = usbHost.GetStream();
try
{
int length;
while (true)
{
Byte[] bytes = new Byte[256];
if ((length = fileStream.Read(bytes, 0, bytes.Length)) > 0)
{
scannedBarcode = Encoding.ASCII.GetString(bytes, 0, length).Trim();
barcodeIsSet = true;
CountSetter.SetCountScreen();
break;
}
else
{
Thread.Sleep(1000);
}
}
}
catch (Exception ex)
{
}
usbHost.Close();
}
usbHost.Dispose();
}
public static int Test(string[] args)
{
Log.d("CommunicationUSBHost");
// Get list of USB Host connected devices
string[] usbPortNames = Communication.USBHost.GetPortNames();
foreach (string usbPortName in usbPortNames)
{
Log.d("Found: " + usbPortName);
}
if (usbPortNames.Length == 0)
{
Log.d("No usb device!");
return(-2);
}
// Open the first USB host device and read any data sent
Communication.USBHost usbHost =
new Communication.USBHost("/dev/ttyUSB0");
usbHost.Open();
if (usbHost.IsOpen)
{
Log.d(String.Format("Opened /dev/ttyUSB0 ({0})",
usbHost.HIDName));
FileStream fileStream = usbHost.GetStream();
try
{
int timeout = 0;
int i;
while (timeout < 10)
{
Log.d(String.Format("Exiting in {0} secs", 10 - timeout));
Byte[] bytes = new Byte[256];
if ((i = fileStream.Read(bytes, 0, bytes.Length)) > 0)
{
string data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
Log.d(String.Format("read {0} bytes: {1}", data.Length, data));
timeout = 0;
}
else
{
Thread.Sleep(1000);
timeout++;
}
}
}
catch (Exception ex)
{
Log.d(String.Format("Exception reading /dev/ttyUSB0: {0}", ex.Message));
}
usbHost.Close();
}
// Wait a short while
Thread.Sleep(1000);
// Clean up
usbHost.Dispose();
return(0);
}
