import ctypes

# Placeholder datatypes for rdr status tellback
class RdrStatusTellback(ctypes.Union):
    _pack_ = 1
    _fields_ = [("raw", ctypes.c_uint16)]

class RdrFunAndParam1Tellback(ctypes.Union):
    _pack_ = 1
    _fields_ = [("raw", ctypes.c_uint16)]

class RdrFunAndParam2Tellback(ctypes.Union):
    _pack_ = 1
    _fields_ = [("raw", ctypes.c_uint16)]

class MsgRdrStatusTellback(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("rdr_mode_tellback", RdrStatusTellback),
        ("param1_tellback", RdrFunAndParam1Tellback),
        ("param2_tellback", RdrFunAndParam2Tellback),
    ]

    def __init__(self):
        super().__init__()
        self.rdr_mode_tellback = RdrStatusTellback()
        self.param1_tellback = RdrFunAndParam1Tellback()
        self.param2_tellback = RdrFunAndParam2Tellback()