Firmware for reverse engineering b43?

Joshua Peisach jpeisach at ubuntu.com
Tue Apr 14 04:30:43 PDT 2026


On Tue Apr 14, 2026 at 5:14 AM EDT, Johannes Berg wrote:
> I think there's no easy answer - what are you even trying to achieve?
> Does b43 not work sufficiently well? Do you even know if some specific
> calibration have a tendency to go out of whack? Is there later firmware
> that has some advantage (given how little actually happens in firmware
> in these devices, I'd be surprised by that) but isn't compatible with
> the driver now, and you want to change that?
>
> I'd be tempted to say that if there's no problem there don't try to fix
> anything, the hardware is ancient anyway, likely has few users, and
> those users would probably be fine with just leaving it?
>
> johannes

The BCM4321 (nphy) doesn't connect to my 5G network, so I figured that
by filling in TODOs and FIXME's, I could eventually get something
working.

Other than that, I was thinking of making improvements for the sake of
improving the driver.

-Josh



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