def bin_data_format(self):
        """
        Returns the format of the values in `bin_data` for the current mode.
        Possible values are:

        - `u8`: Unsigned 8-bit integer (byte)
        - `s8`: Signed 8-bit integer (sbyte)
        - `u16`: Unsigned 16-bit integer (ushort)
        - `s16`: Signed 16-bit integer (short)
        - `s16_be`: Signed 16-bit integer, big endian
        - `s32`: Signed 32-bit integer (int)
        - `float`: IEEE 754 32-bit floating point (float)
        """
        self._bin_data_format, value = self.get_attr_string(self._bin_data_format, 'bin_data_format')
        return value