Open Source Linux driver for wireless network cards (DWL-[G]520+ PCI, DWL-[G]650+ CardBus, GL-2422MP mini-PCI, DWL-120+ USB etc.) which use the entirely undocumented Texas Instruments (TI) ACX100/ACX111 chips, for 2.4.x , 2.6.x to 3.x kernels. FreeBSD: see some other website (FIXME URL got clipped).
!! BIG FAT NOTE: development (i.e., driver "releases") is happening in git source repository tree (as of 2011-09-04), thus you're expected to look there (see web site menu Code --> Git) !!