def get_secchan_offs(type_, data):
    """http://git.kernel.org/cgit/linux/kernel/git/jberg/iw.git/tree/scan.c?id=v3.17#n927

    Positional arguments:
    type_ -- corresponding `ieprinters` dictionary key for the instance.
    data -- bytearray data to read.
    """
    raise NotImplementedError
