摘要：
安装Centos 6.4后，目视检查是否只有有线驱动程序，但没有无线驱动程序。无线网卡的卡号信息为BCM4312802.11b/g II。根据网卡信息安装网卡。在Centos的wiki网站上查找相应的安装信息http://wiki.centos.org/zh/HowTos/Laptops/Wireless?
安装完centos6.4之后，目测只有有线的驱动，没有无线驱动。
一、检测网卡
[root@centos ~]# lspci | grep Net 04:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) 07:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)
第一个是无线网卡，第二个是有线网卡。无线网卡的卡号信息是
BCM4312 802.11b/g二、按照网卡信息安装网卡
由第一步的信息，在centos的一个wiki网站找到相应的安装信息
不过要跳到“其他未被识别的网卡”这一选项
再进入此链接
http://wiki.centos.org/zh/HowTos/Laptops/Wireless/Broadcom?action=show
如果按照以上信息都出现错误
[root@centos hybrid-wl]# make KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd` make[1]: Entering directory `/usr/src/kernels/2.6.32-358.11.1.el6.i686' CFG80211 API is prefered for this kernel version Using CFG80211 API CC [M] /usr/local/src/hybrid-wl/src/shared/linux_osl.o CC [M] /usr/local/src/hybrid-wl/src/wl/sys/wl_linux.o CC [M] /usr/local/src/hybrid-wl/src/wl/sys/wl_iw.o CC [M] /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.o /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:64: warning: ‘enum tx_power_setting’ declared inside parameter list /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:64: warning: its scope is only this definition or declaration, which is probably not what you want /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1110: warning: ‘enum tx_power_setting’ declared inside parameter list /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1110: error: parameter 2 (‘type’) has incomplete type /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c: In function ‘wl_cfg80211_set_tx_power’: /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1123: error: ‘TX_POWER_AUTOMATIC’ undeclared (first use in this function) /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1123: error: (Each undeclared identifier is reported only once /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1123: error: for each function it appears in.) /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1125: error: ‘TX_POWER_LIMITED’ undeclared (first use in this function) /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1131: error: ‘TX_POWER_FIXED’ undeclared (first use in this function) /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c: At top level: /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1649: warning: initialization from incompatible pointer type /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1651: warning: initialization from incompatible pointer type /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1652: warning: initialization from incompatible pointer type /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1653: warning: initialization from incompatible pointer type /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1654: warning: initialization from incompatible pointer type /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1658: warning: initialization from incompatible pointer type /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c: In function ‘wl_inform_single_bss’: /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:1817: error: too few arguments to function ‘ieee80211_channel_to_frequency’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c: In function ‘wl_bss_roaming_done’: /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2117: warning: passing argument 2 of ‘cfg80211_roamed’ from incompatible pointer type include/net/cfg80211.h:3124: note: expected ‘struct ieee80211_channel *’ but argument is of type ‘u8 *’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2117: warning: passing argument 4 of ‘cfg80211_roamed’ makes pointer from integer without a cast include/net/cfg80211.h:3124: note: expected ‘const u8 *’ but argument is of type ‘s32’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2117: warning: passing argument 5 of ‘cfg80211_roamed’ makes integer from pointer without a cast include/net/cfg80211.h:3124: note: expected ‘size_t’ but argument is of type ‘u8 *’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2117: warning: passing argument 6 of ‘cfg80211_roamed’ makes pointer from integer without a cast include/net/cfg80211.h:3124: note: expected ‘const u8 *’ but argument is of type ‘s32’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2117: error: too few arguments to function ‘cfg80211_roamed’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c: In function ‘wl_bss_connect_done’: /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2149: warning: passing argument 2 of ‘cfg80211_roamed’ from incompatible pointer type include/net/cfg80211.h:3124: note: expected ‘struct ieee80211_channel *’ but argument is of type ‘u8 *’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2149: warning: passing argument 4 of ‘cfg80211_roamed’ makes pointer from integer without a cast include/net/cfg80211.h:3124: note: expected ‘const u8 *’ but argument is of type ‘s32’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2149: warning: passing argument 5 of ‘cfg80211_roamed’ makes integer from pointer without a cast include/net/cfg80211.h:3124: note: expected ‘size_t’ but argument is of type ‘u8 *’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2149: warning: passing argument 6 of ‘cfg80211_roamed’ makes pointer from integer without a cast include/net/cfg80211.h:3124: note: expected ‘const u8 *’ but argument is of type ‘s32’ /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.c:2149: error: too few arguments to function ‘cfg80211_roamed’ make[2]: *** [/usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211.o] Error 1 make[1]: *** [_module_/usr/local/src/hybrid-wl] Error 2 make[1]: Leaving directory `/usr/src/kernels/2.6.32-358.11.1.el6.i686' make: *** [all] Error 2
那么编译方式可以改为
make API=WEXT
就这样编译完成。
[root@centos hybrid-wl]# cp -rf wl.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless/
[root@centos hybrid-wl]# depmod
[root@centos hybrid-wl]# modprobe wl
安成啦！
附：无线驱动下载地址http://www.broadcom.com/support/802.11/linux_sta.php
要读README.txt,其中此处关键点
This driver now supports the new linux cfg80211 wireless configuration API in addition to the older Wireless Extensions (Wext). The makefile will automaticly build the right version for your system but it can be overridden if needed: # make API=WEXT or # make API=CFG80211