private bool WriteCommandToOutputBuffer(OutCmd command)
{
byte[] outputBuffer = new byte[MyHid.Capabilities.OutputReportByteLength];
outputBuffer[0] = 0;
outputBuffer[1] = Convert.ToByte(command);
outputBuffer[2] = 0;
Write(ref outputBuffer);
Hid.OutputReportViaInterruptTransfer outputReport = new Hid.OutputReportViaInterruptTransfer();
return(outputReport.Write(outputBuffer, writeHandle));
}
private bool Write(ref byte[] outputBuffer)
{
bool success = false;
try
{
// Check write handle
if (!writeHandle.IsInvalid)
{
if (MyHid.Capabilities.OutputReportByteLength > 0)
{
Hid.OutputReportViaInterruptTransfer outputReport = new Hid.OutputReportViaInterruptTransfer();
success = outputReport.Write(outputBuffer, writeHandle);
if (!success)
{
//response.responseInfo.Add("Write to colorimeter failed.");
}
}
else
{
//response.responseInfo.Add("This HID device doesn't have an Output report.");
}
}
else
{
//response.responseInfo.Add("Invalid write handle.");
}
return(success);
}
catch (Exception ex)
{
//response.responseInfo.Add($"Colorimeter.Write() {ex}");
throw;
}
}
//This method is used for the cases where a single response packet will be enough to contain the results, and we will not have to iterate through a large amount of data
private string GetSinglePacketResponse(OutCmd outCommand)
{
try
{
////build command to send buffer
byte[] outputBuffer = new byte[MyHid.Capabilities.OutputReportByteLength];
outputBuffer[0] = 0;
outputBuffer[1] = Convert.ToByte(outCommand);//the value of the query firmware state
outputBuffer[2] = 0;
//Write command to buffer
Hid.OutputReportViaInterruptTransfer outputReport = new Hid.OutputReportViaInterruptTransfer();
if (!outputReport.Write(outputBuffer, writeHandle))
{
//Failure writing to the report
throw new Exception();
}
//Read from the input report
bool deviceConnected = true;
bool success = false;
Hid.InputReportViaInterruptTransfer myInputReport = new Hid.InputReportViaInterruptTransfer();
myInputReport.Read(hidHandle, readHandle, writeHandle, ref deviceConnected, ref inputBuffer, ref success);
if (!success)
{
//failure reading from the report
throw new Exception();
}
InputReportReceived(ref inputBuffer, success);
newInputData = true;
if (outCommand.Equals(OutCmd.SendFwVers) || outCommand.Equals(OutCmd.SendTestFileVers))
{
//Both of these types of queries return the same type of packet, an encoded string
return(Encoding.GetEncoding("iso-8859-1").GetString(inputBuffer, 3, inputBuffer[2]));
}
if (outCommand.Equals(OutCmd.QueryFirmwareState))
{
switch ((InCmd)inputBuffer[1])
{
case InCmd.BootloaderRunning:
return("BootloaderRunning");
case InCmd.MainFwRunning:
return("MainFwRunning");
default:
return("Unknown");
}
}
}
catch (Exception ex)
{
}
return(null);
}
