From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Batdelger.O" <david.batdelger@grapecity.mn>
Subject: Fwd: Fwd: Re: pl2303 linux driver does not work
Date: Wed, 05 Nov 2014 12:11:00 +0800
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Thank you for your quick response.
It's  just simple python code. I'm not sure if flow control is correct. 
I also used gtkterm and tried by every option.  I'm new at usbserial 
devices. How to know how should it be?

    import time
    import serial
    import sys

    ser = serial.Serial(
         port='/dev/ttyUSB0',
         baudrate=4800,
         parity=serial.PARITY_ODD,
         stopbits=serial.STOPBITS_ONE,
         bytesize=serial.EIGHTBITS,
         # timeout=0
    )

    # RTS 0 DTR 1. not sure it's correct one. I tried by reverse.
    ser.setRTS(False)
    ser.setDTR(True)


    print ser.isOpen()

    ON="\x1B\x5D"
    ser.write(ON)
    ser.flushOutput()
    print "after write"
    # read = ser.read()
    # sys.stdout.write("RECEIVED:" + read + "\n")
    ser.close()


-- 
Best regards,
Batdelger.O R&D engineer
Grapecity Mongolia LLC


On 2014.11.05 10:25, Greg KH wrote:
> On Wed, Nov 05, 2014 at 09:37:59AM +0800, Batdelger.O wrote:
>> Hello
>> Hope you guys are doing great.
>> I've got problem with pl2303 Linux driver. In a nutshell, my mission is to
>> control magnetic card reader/writer with PL-2303 XA / HXA chip from the
>> Linux. I'm using Ubuntu 14.04(kernel version: 3.13.0-39-generic). Everything
>> is going fine. Giving no errors. Writing data via usb-serial seems to work.
>> But the device is not receiving data. If that issue familiar with you,
>> please give me advice.
> How exactly are you "writing data"?  And have you set up flow control
> properly?
>
> thanks,
>
> greg k-h
>

-- 
Best regards,
Batdelger.O R&D engineer
Grapecity Mongolia LLC