This sort of software usually relies on kernel modules, and I believe there has not been any success in backers building kernel modules of any sort (at least not that they've posted). It appears we do not have the correct kernel configuration in the GPL/SDK releases, maybe because of proprietary dependencies, or may be just because that wasn't configured before being released. And I don't believe the official devs will build and host an openwrt repo, but it may be worth tallying votes in the feature requests section.