上次通过更换内核实现成功编译驱动无线网卡，但是启动到系统原内核下依然没有bcm43142的驱动，遂准备在原内核下编译驱动，记录一下

ps：更推荐这种方法，避免因更换内核出现其他兼容性问题

1.准备驱动包

hybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz
点我下载 密cmet
下载拷贝进u盘，将源码包拷贝至/usr

2.安装工具

安装gccyum install -y gcc，如已安装可跳过
安装内核对应版本的kernel-headers，kerner-devel，本次使用当前系统镜像作为yum源，所以版本也是一致的

 [root@king ~]# yum list|grep kernelkernel.x86_64                           3.10.0-327.el7             @anaconda/7.2kernel-devel.x86_64                     3.10.0-327.el7             @rhel7.2_iso kernel-headers.x86_64                   3.10.0-327.el7             @rhel7.2_iso 

3.编译源码与安装驱动

复制源码包并解压

 [root@king ~]# mkdir -p /usr/local/other/wireless7_2[root@king ~]# cp /usr/hybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz /usr/local/other/wireless7_2[root@king ~]# cd /usr/local/other/wireless7_2[root@king wireless7_2]# tar zxf hybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz[root@king wireless7_2]# lshybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz  lib  Makefile  src

编译

 [root@king wireless7_2]# makeKBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`make: *** /lib/modules/3.10.0-327.el7.x86_64/build: No such file or directory.  Stop.make: *** [all] Error 2

报错，分析错误原因，发现/lib/modules/3.10.0-327.el7.x86_64/build软链接失效，重做之

 ln -s /usr/src/kernels/3.10.0-327.el7.x86_64/ /lib/modules/3.10.0-327.el7.x86_64/build  #注意做软链接要写绝对路径

重新编译

 [root@king wireless7_2]# make clean && makeKBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd` cleanmake[1]: Entering directory `/usr/src/kernels/3.10.0-327.el7.x86_64'CFG80211 API is prefered for this kernel version/usr/local/other/wireless7_2/Makefile:85: Neither CFG80211 nor Wireless Extension is enabled in kernelCLEAN   /usr/local/other/wireless7_2/.tmp_versionsCLEAN   /usr/local/other/wireless7_2/Module.symversmake[1]: Leaving directory `/usr/src/kernels/3.10.0-327.el7.x86_64'KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`make[1]: Entering directory `/usr/src/kernels/3.10.0-327.el7.x86_64'CFG80211 API is prefered for this kernel versionUsing CFG80211 APILD      /usr/local/other/wireless7_2/built-in.oCC [M]  /usr/local/other/wireless7_2/src/shared/linux_osl.oCC [M]  /usr/local/other/wireless7_2/src/wl/sys/wl_linux.oCC [M]  /usr/local/other/wireless7_2/src/wl/sys/wl_iw.oCC [M]  /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.o/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c: In function ‘wl_cfg80211_get_station’:/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1460:20: error: ‘STATION_INFO_TX_BITRATE’ undeclared (first use in this function)sinfo->filled |= STATION_INFO_TX_BITRATE;^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1460:20: note: each undeclared identifier is reported only once for each function it appears in/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1477:20: error: ‘STATION_INFO_SIGNAL’ undeclared (first use in this function)sinfo->filled |= STATION_INFO_SIGNAL;^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c: At top level:/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1799:2: warning: initialization from incompatible pointer type [enabled by default].get_station = wl_cfg80211_get_station,^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1799:2: warning: (near initialization for ‘wl_cfg80211_ops.get_station’) [enabled by default]/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c: In function ‘wl_alloc_wdev’:/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1894:22: error: incompatible types when assigning to type ‘const struct wiphy_wowlan_support *’ from type ‘struct wiphy_wowlan_support’wdev->wiphy->wowlan = wl_wowlan_support;^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c: In function ‘wl_inform_single_bss’:/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:2037:3: error: incompatible type for argument 3 of ‘cfg80211_inform_bss’(const u8 *)notify_ie, notify_ielen, signal, GFP_KERNEL);^
In file included from /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:33:0:
include/net/cfg80211.h:4029:1: note: expected ‘enum cfg80211_bss_frame_type’ but argument is of type ‘const u8 *’cfg80211_inform_bss(struct wiphy *wiphy,^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:2037:3: warning: passing argument 7 of ‘cfg80211_inform_bss’ makes integer from pointer without a cast [enabled by default](const u8 *)notify_ie, notify_ielen, signal, GFP_KERNEL);^
In file included from /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:33:0:
include/net/cfg80211.h:4029:1: note: expected ‘u16’ but argument is of type ‘const u8 *’cfg80211_inform_bss(struct wiphy *wiphy,^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:2037:3: warning: passing argument 8 of ‘cfg80211_inform_bss’ makes pointer from integer without a cast [enabled by default](const u8 *)notify_ie, notify_ielen, signal, GFP_KERNEL);^
In file included from /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:33:0:
include/net/cfg80211.h:4029:1: note: expected ‘const u8 *’ but argument is of type ‘size_t’cfg80211_inform_bss(struct wiphy *wiphy,^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:2037:3: error: too few arguments to function ‘cfg80211_inform_bss’(const u8 *)notify_ie, notify_ielen, signal, GFP_KERNEL);^
In file included from /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:33:0:
include/net/cfg80211.h:4029:1: note: declared herecfg80211_inform_bss(struct wiphy *wiphy,^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c: In function ‘wl_notify_connect_status’:/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:2124:4: warning: passing argument 3 of ‘cfg80211_ibss_joined’ makes pointer from integer without a cast [enabled by default]cfg80211_ibss_joined(ndev, (u8 *)&wl->bssid, GFP_KERNEL);^
In file included from /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:33:0:
include/net/cfg80211.h:4219:6: note: expected ‘struct ieee80211_channel *’ but argument is of type ‘unsigned int’void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:2124:4: error: too few arguments to function ‘cfg80211_ibss_joined’cfg80211_ibss_joined(ndev, (u8 *)&wl->bssid, GFP_KERNEL);^
In file included from /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:33:0:
include/net/cfg80211.h:4219:6: note: declared herevoid cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,^
make[2]: *** [/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.o] Error 1
make[1]: *** [_module_/usr/local/other/wireless7_2] Error 2
make[1]: Leaving directory `/usr/src/kernels/3.10.0-327.el7.x86_64'
make: *** [all] Error 2

发现报错，依次排错
由报错信息知wl_cfg80211_hybrid.c文件第1460，1477，1894，2037，2124行有错，做出如下更改

 [root@king wireless7_2]# vim src/wl/sys/wl_cfg80211_hybrid.c1460 //              sinfo->filled |= STATION_INFO_TX_BITRATE;1477 //              sinfo->filled |= STATION_INFO_SIGNAL;1894         wdev->wiphy->wowlan = &wl_wowlan_support;2035         cbss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN, (const u8 *)(bi->BSSID.octet),2036                 0, beacon_proberesp->capab_info, beacon_proberesp->beacon_int,2037                 (const u8 *)notify_ie, notify_ielen, signal, GFP_KERNEL);2124                         cfg80211_ibss_joined(ndev, (u8 *)&wl->bssid, &wl->conf->channel, GFP_KERNEL);

tips：vim里按冒号输入set nu显示行号，冒号后接行号定位到该行

重新编译

 [root@king wireless7_2]# make clean && makeKBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd` cleanmake[1]: Entering directory `/usr/src/kernels/3.10.0-327.el7.x86_64'CFG80211 API is prefered for this kernel version/usr/local/other/wireless7_2/Makefile:85: Neither CFG80211 nor Wireless Extension is enabled in kernelCLEAN   /usr/local/other/wireless7_2/.tmp_versionsCLEAN   /usr/local/other/wireless7_2/Module.symversmake[1]: Leaving directory `/usr/src/kernels/3.10.0-327.el7.x86_64'KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`make[1]: Entering directory `/usr/src/kernels/3.10.0-327.el7.x86_64'CFG80211 API is prefered for this kernel versionUsing CFG80211 APILD      /usr/local/other/wireless7_2/built-in.oCC [M]  /usr/local/other/wireless7_2/src/shared/linux_osl.oCC [M]  /usr/local/other/wireless7_2/src/wl/sys/wl_linux.oCC [M]  /usr/local/other/wireless7_2/src/wl/sys/wl_iw.oCC [M]  /usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.o/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1799:2: warning: initialization from incompatible pointer type [enabled by default].get_station = wl_cfg80211_get_station,^/usr/local/other/wireless7_2/src/wl/sys/wl_cfg80211_hybrid.c:1799:2: warning: (near initialization for ‘wl_cfg80211_ops.get_station’) [enabled by default]LD [M]  /usr/local/other/wireless7_2/wl.oBuilding modules, stage 2.CFG80211 API is prefered for this kernel versionUsing CFG80211 APIMODPOST 1 modulesCC      /usr/local/other/wireless7_2/wl.mod.oLD [M]  /usr/local/other/wireless7_2/wl.komake[1]: Leaving directory `/usr/src/kernels/3.10.0-327.el7.x86_64'

没有报错

 [root@king wireless7_2]# lsbuilt-in.o                                       modules.order   wl.mod.chybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz  Module.symvers  wl.mod.olib                                              src             wl.oMakefile                                         wl.ko

发现已生成驱动文件wl.ko

安装驱动文件

 [root@king wireless7_2]# make installinstall -D -m 755 wl.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless

4.驱动文件加载和配置

加载驱动文件

 [root@king wireless7_2]# insmod wl.ko[root@king wireless7_2]# lsmod|grep wlwl                   6445574  0 cfg80211              572836  1 wl

发现右上角出现wifi选项，驱动加载成功，可以连接wifi啦，Enjoying it！

参考
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