To provide feedback: I have found the way how to control serial port parity bit on the Linux (how to set the parity bit to the "mark" or "space" parity) within Python using termios module.
With the help of: http://www.lothosoft.ch/thomas/libmip/markspaceparity.php ======================================= import serial import termios import TERMIOS ser=serial.Serial('/dev/ttyS0', 9600, 8, "N", timeout=1) iflag, oflag, cflag, lflag, ispeed, ospeed, cc = termios.tcgetattr(ser) cflag |= PARENB | CMSPAR # To select SPACE parity cflag &= ~PARODD cflag |= PARENB | CMSPAR | PARODD # to select MARK parity termios.tcsetattr(ser, termios.TCSANOW, [iflag, oflag, cflag, lflag, ispeed, ospeed, cc]) ======================================= Using above mentioned it is possible to establish 9bit serial communication according to the given protocol specifics. It is necessary to control parity bit setting before sending each communication byte. Regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list
