/// <summary>
/// Send the command to the device. Preferred method for adding command bytes
/// </summary>
/// <param name="cmd">USB command</param>
/// <param name="readBuffer">Pre-allocated byte array</param>
/// <param name="commandBytes">command bytes passed in order from byte0..byte1..byte(n)
/// They are appended to the writeBuffer</param>
/// <returns>False if read or write error. True otherwise.</returns>
private bool sendCommand(USBcommand cmd, byte[] readBuffer, params byte[] commandBytes)
{
int bytesRead, bytesWritten;
byte[] writeBuffer = new byte[commandBytes.Length + 1];
writeBuffer[0] = (byte)cmd;
for (int i = 0; i < commandBytes.Length; i++)
{
writeBuffer[i + 1] = commandBytes[i];
}
this.ec = writer.Write(writeBuffer, Constants.TIMEOUT, out bytesWritten);
if (this.ec != ErrorCode.None)
{
return(false);
}
this.ec = reader.Read(readBuffer, Constants.TIMEOUT, out bytesRead);
if (this.ec != ErrorCode.None)
{
return(false);
}
return(true);
}
/*************************************************
* Methods for talking to the device *
* sendCommand() should not be called directly *
*************************************************/
/// <summary>
/// Send command with no command bytes in the writeBuffer
/// </summary>
/// <param name="cmd">USB command</param>
/// <param name="readBuffer">Pre-allocated byte array</param>
/// <returns>False if read or write error. True otherwise</returns>
private bool sendCommand(USBcommand cmd, byte[] readBuffer)
{
int bytesRead, bytesWritten;
byte[] writeBuffer = { (byte)cmd };
this.ec = writer.Write(writeBuffer, Constants.TIMEOUT, out bytesWritten);
if (this.ec != ErrorCode.None)
{
return(false);
}
this.ec = reader.Read(readBuffer, Constants.TIMEOUT, out bytesRead);
if (this.ec != ErrorCode.None)
{
return(false);
}
return(true);
}
/// <summary>
/// Send the command to the device. Preferred method for adding command bytes
/// </summary>
/// <param name="cmd">USB command</param>
/// <param name="readBuffer">Pre-allocated byte array</param>
/// <param name="commandBytes">command bytes passed in order from byte0..byte1..byte(n). They are appended to the writeBuffer</param>
/// <returns>False if read or write error. True otherwise.</returns>
private bool sendCommand(USBcommand cmd, byte[] readBuffer, params byte[] commandBytes)
{
int bytesRead, bytesWritten;
byte[] writeBuffer = new byte[commandBytes.Length + 1];
writeBuffer[0] = (byte)cmd;
for (int i = 0; i < commandBytes.Length; i++)
{
writeBuffer[i + 1] = commandBytes[i];
}
this.ec = writer.Write(writeBuffer, Constants.USB_TIMEOUT, out bytesWritten);
if (this.ec != ErrorCode.None)
return false;
this.ec = reader.Read(readBuffer, Constants.USB_TIMEOUT, out bytesRead);
if (this.ec != ErrorCode.None)
return false;
return true;
}
/*************************************************
* Methods for talking to the device *
* sendCommand() should not be called directly *
*************************************************/
//TODO revamp the send command to comply with USB Interface Protocol Rev A
/// <summary>
/// Send command with no command bytes in the writeBuffer
/// </summary>
/// <param name="cmd">USB command</param>
/// <param name="readBuffer">Pre-allocated byte array</param>
/// <returns>False if read or write error. True otherwise</returns>
private bool sendCommand(USBcommand cmd, byte[] readBuffer)
{
int bytesRead, bytesWritten;
byte[] writeBuffer = { (byte)cmd };
this.ec = writer.Write(writeBuffer, Constants.USB_TIMEOUT, out bytesWritten);
if (this.ec != ErrorCode.None)
return false;
this.ec = reader.Read(readBuffer, Constants.USB_TIMEOUT, out bytesRead);
if (this.ec != ErrorCode.None)
return false;
return true;
}
