Python termios.CLOCAL Examples

The following are 1 code examples of termios.CLOCAL(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module termios , or try the search function .
Example #1
Source File: serial.py    From rpi3-webiopi with Apache License 2.0 5 votes vote down vote up 
def __init__(self, device="/dev/ttyAMA0", baudrate=9600):
        if not device.startswith("/dev/"):
            device = "/dev/%s" % device
        
        if isinstance(baudrate, str):
            baudrate = int(baudrate)

        aname = "B%d" % baudrate
        if not hasattr(termios, aname):
            raise Exception("Unsupported baudrate")
        self.baudrate = baudrate

        Bus.__init__(self, "UART", device, os.O_RDWR | os.O_NOCTTY)
        fcntl.fcntl(self.fd, fcntl.F_SETFL, os.O_NDELAY)
        
        #backup  = termios.tcgetattr(self.fd)
        options = termios.tcgetattr(self.fd)
        # iflag
        options[0] = 0

        # oflag
        options[1] = 0

        # cflag
        options[2] |= (termios.CLOCAL | termios.CREAD)
        options[2] &= ~termios.PARENB
        options[2] &= ~termios.CSTOPB
        options[2] &= ~termios.CSIZE
        options[2] |= termios.CS8

        # lflag
        options[3] = 0

        speed = getattr(termios, aname)
        # input speed
        options[4] = speed
        # output speed
        options[5] = speed
        
        termios.tcsetattr(self.fd, termios.TCSADRAIN, options)