def __init__(self, frame, no_rtap=False):
Control.__init__(self, frame, no_rtap)<EOL>(ra_mac, ta_mac) = struct.unpack('<STR_LIT>', self._packet[<NUM_LIT:4>:<NUM_LIT:16>])<EOL>self.ra = self.ta = None<EOL>self.ackpolicy = self.multitid = None<EOL>self.ssc_frag = self.ssc_seq = None<EOL>self.bitmap_str = None<EOL>self.acked_seqs = []<EOL>self.ra = Wifi.get_mac_addr(ra_mac)<EOL>self.ta = Wifi.get_mac_addr(ta_mac)<EOL>idx = <NUM_LIT:16><EOL>payload = self._packet[idx:idx + <NUM_LIT:2>]<EOL>self.ackpolicy, self.multitid = BACK.strip_cntrl(payload)<EOL>idx += <NUM_LIT:2><EOL>payload = self._packet[idx:idx + <NUM_LIT:2>]<EOL>self.ssc_seq, self.ssc_frag = BACK.strip_ssc(payload)<EOL>idx += <NUM_LIT:2><EOL>payload = self._packet[idx:idx + <NUM_LIT:8>]<EOL>self.bitmap_str = BACK.strip_bitmap_str(payload)<EOL>idx += <NUM_LIT:8><EOL>self.acked_seqs = BACK.extract_acked_seqs(self.bitmap_str, self.ssc_seq)<EOL>
Constructor method.
        :frame: ctypes.Structure