User Tools

Site Tools


For relicensing, the content of this page was removed.

The old website for now has a copy of the old content:

b43 and b43legacy are wireless drivers for Broadcom SoftMAC chipsets. Kernel will automatically pick a proper module for you:

  • b43 for any new (supported) hardware
  • b43legacy for BCM4301 and early BCM4306 versions


  • You need to have firmware files (usually in /lib/firmware/) so b43(legacy) can upload them to the card and run properly.
  • For FullMAC devices support see brcmfmac and rndis_wlan

Known problems & limitations

  • Some stalls (on G-PHY only?) possibly related to CCK vs. OFDM, see WRT54g / b43 / mac802.11 BREAKTHROUGH
  • N-PHY: 5 GHz support requires kernel 3.17+
  • HT-PHY: no support for 5 GHz
  • No support for 802.11n features (HT, aggregation, 40 MHz width)

Resolved problems

  • G-PHY devices: not working with kernels 3.15 and 3.16-rc1 (a regression). This was fixed in 3.15.5 (6f3f164) and 3.16-rc3 (2fc68eb).
  • Scanning/connectivity problems: caused by b43 bug exposed with kernel 3.8 (by 0172bb7). Fixed in kernel 3.14 (by 64e5acb) and backported to 3.13.2, 3.12.10, 3.10.29.

List of hardware

To check for a present hardware model execute following command:

lspci -nn -d 14e4:

Please look carefully at device ID and chipset name.

PCI-ID Supported? Chip ID Modes PHY version Alternative
14e4:0576 not tested BCM43224 a/b/g/n ? brcm80211
14e4:4301 yes (b43legacy) BCM4301 b B
14e4:4306 yes (b43legacy) BCM4306/2 b/g G
14e4:4307 yes BCM4306/3 b/g G
14e4:4311 yes BCM4311 b/g G wl
14e4:4312 yes BCM4311 a/b/g G (r8) wl
14e4:4313 not tested BCM4311 a ? wl
no BCM4313 b/g/n LCN (r1) brcm80211
14e4:4315 yes BCM4312 b/g LP (r1) wl
14e4:4318 yes BCM4318 b/g G (r7)
14e4:4319 yes BCM4318 a/b/g G
14e4:4320 yes (b43legacy) BCM4306/2 b/g G (r1)
yes BCM4306/3 ? G (r2)
14e4:4321 partially BCM4321 ? N (r2)
14e4:4322 yes (3.18+) BCM4322 b/g/n N (r4)
14e4:4324 yes (b43legacy) BCM4306 a/b/g G (r1)
yes BCM4306/3 a/b/g G (r5)
14e4:4325 yes (b43legacy) BCM4306/2 b/g G (r1)
14e4:4328 partially BCM4321 a/b/g/n N (r2) wl
14e4:4329 partially BCM4321 b/g/n N (r1) wl
14e4:432a not tested BCM4321 a/n N wl
14e4:432b partially BCM4322 a/b/g/n N (r4) wl
14e4:432c yes BCM4322 b/g/n N wl
14e4:432d not tested BCM4322 a/n N wl
14e4:4331 yes (3.2-rc3+) BCM4331 a/b/g/n HT (r1) wl
14e4:4350 yes (3.8+) BCM43222 a/b/g/n N (r6)
14e4:4353 yes (3.1+) BCM43224 a/b/g/n N (r6) wl/brcm80211
14e4:4357 yes (3.1+) BCM43225 b/g/n N (r6) wl/brcm80211
14e4:4358 yes (3.17+) BCM43227 b/g/n N (r16) wl
14e4:4359 yes (3.17+) BCM43228 a/b/g/n N (r16) wl
14e4:4360 no BCM4360 ? AC (r1)
14e4:4365 no BCM43142 b/g/n LCN40 (r3) wl
14e4:43a0 no BCM4360 a/b/g/n/ac AC? wl
no BCM4352 a/b/g/n/ac ? wl
14e4:43a9 yes (3.17+) BCM43217 b/g/n N (r17)
14e4:43aa yes (3.17+) BCM43131 b/g/n N (r17)
14e4:43b1 no BCM4352 a/b/g/n/ac AC (r3)
14e4:4727 no BCM4313 b/g/n LCN (r1) wl/brcm80211
14e4:a8d6 not tested BCM43222 ? N (6)
14e4:a8d8 yes (3.6+) BCM43224 a/b/g/n N (r6) brcm80211
yes (3.6+) BCM43225 ? N (r6) brcm80211
14e4:a8db partially (3.18+) BCM43217 b/g/n N (r17)
14e4:a99d not tested BCM43421? ? ?


  • For instant contact you can try #bcm-users channel in IRC freenode network. Please note the limited activity and that you may need to wait for an answer.
  • As a more reliable way you can use b43-dev mailing list.

In case of any problem, please start with providing hardware model (including ID) and description of the issue.

en/users/drivers/b43.txt · Last modified: 2018/07/04 17:06 by Xose Vazquez Perez