The guys over in the Arch AUR claim that they have a patch to enable support for the 4.0 kernel. https://aur.archlinux.org/packages/broadcom- wl-dkms/
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bcmwl in Ubuntu. https://bugs.launchpad.net/bugs/1443553 Title: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu2: bcmwl kernel module failed to build Status in bcmwl package in Ubuntu: Confirmed Bug description: module not working after 4.0 kernel update ProblemType: Package DistroRelease: Ubuntu 15.04 Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu2 ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3 Uname: Linux 3.19.0-12-generic x86_64 NonfreeKernelModules: nvidia wl ApportVersion: 2.17-0ubuntu2 Architecture: amd64 DKMSKernelVersion: 4.0.0-040000-generic Date: Mon Apr 13 18:02:02 2015 InstallationDate: Installed on 2015-04-10 (3 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326) PackageVersion: 6.30.223.248+bdcom-0ubuntu2 RelatedPackageVersions: dpkg 1.17.25ubuntu1 apt 1.0.9.7ubuntu4 SourcePackage: bcmwl Title: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu2: bcmwl kernel module failed to build UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1443553/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp