{ lib, stdenv, fetchurl, cabextract, bt-fw-converter }: # Kernels between 4.2 and 4.7 will not work with # this packages as they expect the firmware to be named "BCM.hcd" # see: https://github.com/NixOS/nixpkgs/pull/25478#issuecomment-299034865 stdenv.mkDerivation rec { pname = "broadcom-bt-firmware"; version = "12.0.1.1012"; src = fetchurl { url = "http://download.windowsupdate.com/c/msdownload/update/driver/drvs/2017/04/852bb503-de7b-4810-a7dd-cbab62742f09_7cf83a4c194116648d17707ae37d564f9c70bec2.cab"; sha256 = "1b1qjwxjk4y91l3iz157kms8601n0mmiik32cs6w9b1q4sl4pxx9"; }; nativeBuildInputs = [ cabextract bt-fw-converter ]; unpackCmd = '' mkdir -p ${pname}-${version} cabextract $src --directory ${pname}-${version} ''; installPhase = '' mkdir -p $out/lib/firmware/brcm bt-fw-converter -f bcbtums.inf -o $out/lib/firmware/brcm for filename in $out/lib/firmware/brcm/*.hcd do linkname=$(basename $filename | awk 'match($0,/^(BCM)[0-9A-Z]+(-[0-9a-z]{4}-[0-9a-z]{4}\.hcd)$/,c) { print c[1]c[2] }') if ! [ -z $linkname ] then ln -s --relative -T $filename $out/lib/firmware/brcm/$linkname fi done ''; outputHashMode = "recursive"; outputHashAlgo = "sha256"; outputHash = "042frb2dmrqfj8q83h5p769q6hg2b3i8fgnyvs9r9a71z7pbsagq"; meta = with lib; { description = "Firmware for Broadcom WIDCOMM® Bluetooth devices"; homepage = "http://www.catalog.update.microsoft.com/Search.aspx?q=Broadcom+bluetooth"; license = licenses.unfree; platforms = platforms.linux; maintainers = with maintainers; [ zraexy ]; }; }