I'm using Ubuntu 10.04.4 LTS, and in my laptop there is a Broadcom BCM4312 WLAN card.
04:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01) Subsystem: Broadcom Corporation Device 04b5 Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at f4500000 (64-bit, non-prefetchable) [size=16K] Capabilities:  Power Management version 3 Capabilities:  Vendor Specific Information <?> Capabilities: [e8] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- Capabilities: [d0] Express Endpoint, MSI 00 Capabilities:  Advanced Error Reporting <?> Capabilities: [13c] Virtual Channel <?> Capabilities:  Device Serial Number 81-ac-1d-ff-ff-12-54-92 Capabilities: [16c] Power Budgeting <?> Kernel driver in use: wl Kernel modules: wl, ssb
So as you can see, the current (and default) driver is
wl - installed with Jockey.
But I have another Ubuntu based distribution on my laptop (BackTrack linux), which is also 10.04, but it has the
b43 driver installed and the overall performance is much better. So I would like to install it on this OS too, but even google didn't help me.
So my question is how to install the latest
b43 driver on my Ubuntu?