BCM4321 wireless card

Björn Jonare bjorn.jonare at gmail.com
Sun Jul 24 16:35:53 UTC 2016

On Friday 22 July 2016 at 19:35, Valery Filipchuk wrote:
> Hello Björn!
> I am trying to make BCM4321 work with PC-BSD (10.3)
> which I installed on my laptop.  
> I had done a few step toward this goal which I found at various sites:
> 1. % cd /usr/ports/net/bwn-firmware-kmod
> 2. % make install clean  
> 3. updated /boot/defaults/loader.conf with if_bwn_load-"YES"
> 4. rebooted
> After reboot my card is still not recognized.  
> Even "lspci" lists the card, "ifconfig" doesn't show wlan0 .
> "kldstat | grep bwn" lists following bwn modules:


The support for newer broadcom wifi-cards is new to FreeBSD-11. This means that you either have to install the latest PC-BSD-11 beta or wait for the final release of 11 (which should be ”soonish”) to follow these instructions.
First you have to reconfig/recompile your kernel. This is done by adding the following lines to your kernel config (found at /usr/src/sys/amd64/conf/GENERIC):

options BWN_GPL_PHY
options BWN_DEBUG

You then need to uncomment some lines in /usr/src/sys/modules/bwn/Makefile, just read the comments in the Makefile and it should be obvious which lines.

Then run "make buildkernel && make installkernel” in /usr/src. If everything went right, you should then add these lines to /boot/loader.conf and reboot:


Now, with any luck, you should have a working BCM4321! Just remember that it doesn’t do 802.11n yet. This however is far superior to no wireless at all!

If you have any further questions, don’t hesitate to ask!

/Hälsningar Björn  

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