HOWTO: Use b43 driver with 14e4:4315 (Broadcom bcm4312 rev 01)

[limaunion]

Limaunion, the speed issue is a known problem and it's going to be fixed by kernel 2.6.32.

By the way, what Windows driver did you use for ndiswrapper? It never worked for me. Also, do you mean 20 megabytes or megabits per second? I can barely get 1.5 megabytes per second with any OS or driver

Ok, glad to know that it's a known issue, but I'm already running 2.6.32 (I use to follow vanilla kernel), thus it seems that this issue it's not fixed yet.

I don't know precisely what ndiswrapper driver I was using but as far as I can remenber i donwloaded it from HP support website. Actually, today after I confirmed that this other alternative works I've uninstalled from my notebook all the ndiswrapper packages.

I mean 150 KBytes/s (~15Mbits/s) and 2 MBytes (~20Mbits/s).
Thanks.

[georg.65]

today i'm looking one time more in /etc/modprobe.d in all the files for blacklist b43 and blacklist ssb and i d'ont found them.

chenxiaolong here is the output, maybe now you now what is the problem

orion@orion-laptop:~$ sudo modprobe b43
[sudo] password for orion:
orion@orion-laptop:~$ dmesg | grep b43
[ 2.702224] b43-pci-bridge 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 2.702251] b43-pci-bridge 0000:02:00.0: setting latency timer to 64
[ 14.913052] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
[ 15.261935] Registered led device: b43-phy0::tx
[ 15.261996] Registered led device: b43-phy0::rx
[ 15.262059] Registered led device: b43-phy0::radio
[ 15.457410] b43 ssb0:0: firmware: requesting b43/ucode15.fw
[ 15.858076] b43 ssb0:0: firmware: requesting b43-open/ucode15.fw
[ 15.951294] b43-phy0 ERROR: Firmware file "b43/ucode15.fw" not found
[ 15.951480] b43-phy0 ERROR: Firmware file "b43-open/ucode15.fw" not found
[ 15.951651] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/...devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
[ 16.164125] b43 ssb0:0: firmware: requesting b43/ucode15.fw
[ 16.238466] b43 ssb0:0: firmware: requesting b43-open/ucode15.fw
[ 16.300861] b43-phy0 ERROR: Firmware file "b43/ucode15.fw" not found
[ 16.300874] b43-phy0 ERROR: Firmware file "b43-open/ucode15.fw" not found
[ 16.300883] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/...devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
orion@orion-laptop:~$

thanks georg

[chenxiaolong]

Ohh. So it's missing the firmware files. Try running this command and choose yes when it asks you to fetch the firmware:

sudo dpkg-reconfigure b43-fwcutter

[georg.65]

This was the problem chenxiaolong,

i'm activated the driver and can see the networks at network manager now.

yes i forgot to fetch the firmware when i'm installing the b43-fwcutter the first time.

thanks again

Limaunion, the speed issue is a known problem and it's going to be fixed by kernel 2.6.32.

Yes when i'm using the wl driver the speed was a little better, but still is ok with b43.

I hope that other people that have the problem with b43 will found this thread that have now over 22 000 clicks.


thanks and see you, georg

[shakty]

I have a macbookpro 5.1 + Karmic.

I had the problem described here:

http://ubuntuforums.org/showthread.p...81#post8449681

My network controller is Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01), which is different from the (Broadcom bcm4312 rev 01)

If you try to update the firmware, not surprisingly, it does not work at all and moreover it created a conflict with the proprietary NVIDIA driver, and lead the system to instability. So don't do that!

Btw, can anybody suggest me anything? I am rather new to Ubuntu. Thanks!

[limaunion]

Today I've been testing the network speed using the b43 driver and in spite of the advertised speed by 'iwconfig wlan0' that is 'Bit Rate=1 Mb/s', I'm getting the following results:

$ iperf -c debian1 -t 30 -f K
------------------------------------------------------------
Client connecting to debian1, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.1.5 port 49592 connected with 192.168.1.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-30.1 sec 34888 KBytes 1161 KBytes/sec

It's not so bad but I hope that someone will fix this in the near future albeit that this problem has a long history: https://bugs.launchpad.net/ubuntu/+s...er/+bug/201225

[chenxiaolong]

Sorry shakty, but the b43 driver won't work with your wireless card as wireless N cards aren't supported yet. And from the thread that you linked to, the wl driver isn't working well either. The only thing I can suggest is to download and compile the Broadcom STA (wl) driver from Broadcom's website: http://www.broadcom.com/support/802.11/linux_sta.php

BTW, if you need help, could you PM me instead of posting in this thread? It would nice to keep it on-topic.

[stigb]

Hi, I just posted this thread http://ubuntuforums.org/showthread.php?p=8450418 and I followed this tutorial (on page 1) afterwards. There is no change at all, as far as I can see. At least the wireless still does not work. Info about my system is in my thread.

[chenxiaolong]

Stigb, you either want to use the driver in the other thread or the driver in this thread. You definitely don't want to use both. I posted instructions in the thread you linked to, so you can take a look at that.

[daedalus317]

Damn, I'm having issues with this, my wireless card and the drivers are not talking talking nicely with each other.

Let me start with I have a HP mini 311 and it has a bcm4312 wireless card and it is running ubuntu 9.10 with a kernel of 2.6.31-16. I can get it to connect fine using the broadcom-std drivers, but that leaves me without the ability to be able to place the card in "monitoring" or "injection" modes.

I have study and tried what everyone in this thread has which it seems to be a hit or miss results. I really don't think I'm that dense to not get it, but google is not being my friend on this topic.

As far as I can tell, the driver I need to get to play correctly is the b43 driver. I'll give another shot and post the results tonight.

Daedalus

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Please ignore the above I got the driver working.

Sorry about this.

Daedalus