WL_CHANSPEC_BAND_MASK
(((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_5G)
(((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_2G)
#define CHSPEC_BAND(chspec) ((chspec) & WL_CHANSPEC_BAND_MASK)