def listen(self, socket, backlog):
        if not isinstance(socket, TransmissionControlObject):
            raise Error(errno.ENOTSOCK)
        if not isinstance(socket, DataLinkConnection):
            raise Error(errno.EOPNOTSUPP)
        if not type(backlog) == IntType:
            raise TypeError("backlog must be integer")
        if backlog < 0:
            raise ValueError("backlog mmust not be negative")
        backlog = min(backlog, 16)
        if not socket.is_bound:
            self.bind(socket)
        socket.listen(backlog)
dataset/ETHPy150Open javgh/greenaddress-pos-tools/nfc/llcp/llc.py/LogicalLinkController.listen/original