in a past life I use to supply the android-x86 builds with b43 stuff enabled and working for the kernel....
I don't think you'll find any of the newer releases (4.4-r1/4.4-r2/5.0+) have that anymore.....
think they all depend on open source BRCMSMAC / BRCMFMAC for broardcom wifi stuff...trouble
is all available documentation I've looked at shows a "skewing" in that certain broadcom chips are NOT supported
by the newer stuff....go look at some of the documentation and you'll see....remember android-x86 also use to use
the wl driver which I guess has been "replaced/merged" by the xxx80211 stuff.....
this is a good thing except everyone has to get on the same page and that may be a while...and for how long do you
continue supporting drivers that are "outdated and unsupported" anymore????
you can still incorporate the b43/b43 legacy stuff in our defconfigs...I have my old Linksys WMP54G that uses the
broadcom BCM4306 v2 chip working fine by adding to my defconfigs...just as a sanity check....
FWIW