How to set data bits on serial communication with USB Host Shield

[tkuwabara]

I'm struggling sketching to operate USB peripheral using USB Host Shield. But it doesn't work... The COM settings of the peripheral are as follows;
Baud Rate: 9600
Parity: Odd
Data Bits: 7
Stop Bit: 1

I'm afraid I have not yet set data bit on the sketch. Could you tell me how to set the data bits to be 7?

#include <cdcftdi.h>
#include <usbhub.h>

#include "pgmstrings.h"

// Satisfy the IDE, which needs to see the include statment in the ino too.
#ifdef dobogusinclude
#include <spi4teensy3.h>
#endif
#include <SPI.h>

class FTDIAsync : public FTDIAsyncOper
{
  public:
    uint8_t OnInit(FTDI *pftdi);
};

uint8_t FTDIAsync::OnInit(FTDI *pftdi)
{
  uint8_t rcode = 0;

  rcode = pftdi->SetBaudRate(9600);

  if (rcode)
  {
    ErrorMessage<uint8_t>(PSTR("SetBaudRate"), rcode);
    return rcode;
  }

  rcode = pftdi->SetData(FTDI_SIO_SET_DATA_STOP_BITS_1);
  {
    ErrorMessage<uint8_t>(PSTR("SetData 1"), rcode);
    return rcode;
  }

    rcode = pftdi->SetData(FTDI_SIO_SET_DATA_PARITY_ODD);
    {
        ErrorMessage<uint8_t>(PSTR("SetData 2"), rcode);
        return rcode;
    }

  rcode = pftdi->SetFlowControl(FTDI_SIO_DISABLE_FLOW_CTRL);

  if (rcode)
    ErrorMessage<uint8_t>(PSTR("SetFlowControl"), rcode);

  return rcode;
}



USB              Usb;
//USBHub         Hub(&Usb);
FTDIAsync        FtdiAsync;
FTDI             Ftdi(&Usb, &FtdiAsync);