ubuntu14.04 升级kernel4.2 以后无线网卡驱动无法加载

[novices]

先查看网卡信息 lshw
carlos@carlos-PC:~$ lshw -C network
WARNING: you should run this program as super-user.
*-network UNCLAIMED
description: Network controller
product: BCM43225 802.11b/g/n
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: latency=0
resources: memory:d5400000-d5403fff
*-network
description: Ethernet interface
product: NetXtreme BCM57760 Gigabit Ethernet PCIe
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 01
serial: 00:1e:33:29:24:f4
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 duplex=full firmware=57760-v3.21 ip=115.154.120.18 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:28 memory:d3400000-d340ffff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
carlos@carlos-PC:~$

然后 尝试了一下 更新 bcmwl的驱动 apt-get install --reinstall bcmwl-kernel-source

正在将 bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu0.1) 解包到 (6.30.223.248+bdcom-0ubuntu0.1) 上 ...
正在设置 bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu0.1) ...
Loading new bcmwl-6.30.223.248+bdcom DKMS files...
Building only for 4.2.0-040200-generic
Building for architecture x86_64
Building initial module for 4.2.0-040200-generic
ERROR (dkms apport): kernel package linux-headers-4.2.0-040200-generic is not supported
Error! Bad return status for module build on kernel: 4.2.0-040200-generic (x86_64)
Consult /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/make.log for more information.
modprobe: FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
正在处理用于 initramfs-tools (0.103ubuntu4.2) 的触发器 ...
update-initramfs: Generating /boot/initrd.img-4.2.0-040200-generic

问题在于 Module wl not found 这个怎么处理？

[novices]

问题补充： 我直接用broadcom的驱动编译 会出现下列情况：

KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`
make[1]: 正在进入目录 `/usr/src/linux-headers-4.2.0-040200-generic'
CFG80211 API is prefered for this kernel version
Using CFG80211 API
CC [M] /home/carlos/wl/src/wl/sys/wl_linux.o
/home/carlos/wl/src/wl/sys/wl_linux.c: In function ‘wl_alloc_linux_if’:
/home/carlos/wl/src/wl/sys/wl_linux.c:1310:64: error: macro "alloc_netdev" requires 4 arguments, but only 3 given
dev = alloc_netdev(sizeof(priv_link_t), intf_name, ether_setup);
^
/home/carlos/wl/src/wl/sys/wl_linux.c:1310:8: error: ‘alloc_netdev’ undeclared (first use in this function)
dev = alloc_netdev(sizeof(priv_link_t), intf_name, ether_setup);
^
/home/carlos/wl/src/wl/sys/wl_linux.c:1310:8: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [/home/carlos/wl/src/wl/sys/wl_linux.o] 错误 1
make[1]: *** [_module_/home/carlos/wl] 错误 2
make[1]:正在离开目录 `/usr/src/linux-headers-4.2.0-040200-generic'
make: *** [all] 错误 2


请问这个什么意思？需要四个参数 但是只给了三个？

[vickycq]

1. BCM43225 这张卡受开源驱动支持，为何不使用开源驱动?
2. Linux 4.2 内核编译bcm私有驱动发生了一些变化。用私有驱动追新内核不是好主意。

[novices]

怎么直接使用开源的驱动呢？

1. BCM43225 这张卡受开源驱动 b43 支持(Linux 3.6+) ，为何不使用开源驱动?
2. Linux 4.2 内核编译bcm私有驱动发生了一些变化。用私有驱动追新内核不是好主意。

[poloshiao]

carlos@carlos-PC:~$ lshw -C network
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

1. 試試
sudo lshw -C network
看看內容 有否不同

怎么直接使用开源的驱动呢？

*-network UNCLAIMED
description: Network controller
product: BCM43225 802.11b/g/n

2. https://wireless.wiki.kernel.org/en/users/Drivers/b43
14e4:4357 yes (3.1+) BCM43225 b/g/n N (r6) wl/brcm80211
14e4:a8d8 (3.6+) BCM43225 ? N (r6) brcm80211

3. http://linuxwireless.sipsolutions.net/e ... brcm80211/
brcm80211
brcmsmac is a mac80211-based SoftMAC driver
brcmsmac (PCIe/AXI) driver:
BCM43225 0x4357

[vickycq]

怎么直接使用开源的驱动呢？

开源驱动b43集成在内核里，支持列表见 https://wireless.wiki.kernel.org/en/users/drivers/b43
可见支持 14e4:4357 (3.1+) 和 14e4:a8d8 (3.6+) 两款BCM43225
用 lspci -vnn 看自己的BCM43225 是否为14e4:4357 或 14e4:a8d8 （Subsystem一栏）

开源驱动brcm80211集成在内核里，支持列表见 https://wireless.wiki.kernel.org/en/use ... /brcm80211
可见 brcmsmac 支持 43225


卸载 bcmwl-kernel-source

代码： 全选

apt-get purge bcmwl-kernel-source

查看 /etc/modprobe.d/ 中每个文件，把所有 blacklist b43 和 blacklist brcmsmac, blacklist brcmfmac 的行删除。（安装 bcmwl-kernel-source 时，应该生成了一个专门文件用于blacklist所有开源驱动相关模块。如果找到这个文件，把它直接删除。）

更新一次initramfs

代码： 全选

update-initramfs -u -k all

=======================

b43 or brcm80211 ?
可以参考https://wiki.archlinux.org/index.php/Broadcom_wireless

重启后，用 lshw -C network 检查无线网卡驱动情况，使用的驱动见'configuration: ...... driver= '一栏。

一般来说，brcm80211(brcmsmac, brcmfmac) 可以直接使用，b43一般需要固件，由 firmware-b43-installer 或 b43-fwcutter 提供。

[novices]

已经搞定 多谢～