b43 / LCN PHY

Larry Finger Larry.Finger at lwfinger.net
Mon Nov 25 16:47:36 EST 2013


On 11/25/2013 01:54 PM, Rafał Miłecki wrote:
> 2013/11/25 Christopher Horler <cshorler at googlemail.com>:
>> On 25 November 2013 16:42, Larry Finger <Larry.Finger at lwfinger.net> wrote:
>>> On 11/25/2013 05:32 AM, Hauke Mehrtens wrote:
>>>>
>>>> On 11/25/2013 11:33 AM, Christopher Horler wrote:
>>>>>
>>>>> Hi All,
>>>>>
>>>>> I enabled the (broken) LCN PHY support.  I understand it's broken, I'm
>>>>> not expecting it to work... at least not yet!
>>>>>
>>>>> Is anyone looking at this?
>>>>>
>>>>> Are there any obvious major blocking issues (so as to avoid unnecessary
>>>>> effort)?
>>>>>
>>>>> Chris
>>>>
>>>>
>>>> I do not think anybody will work on adding support for the LCN PHY
>>>> (BCM4313) to b43 any more, because brcmsmac already supports this device.
>>>>
>>>> There is some code missing to make this card working in b43, it is not
>>>> working at all, you should use brcmsmac.
>>>
>>>
>>> As the only person working on reverse engineering of Broadcom chips, I am
>>> certain that anything missing from the LCN specs is unlikely to be added. I
>>> agree that you should use brcmsmac and report all problems.
>>>
>>> Larry
>>>
>>
>> Thanks for the info guys.
>>
>> okay, will use brcmsmac - I've just noted the same info about LCN PHY
>> support is also here:
>> http://wireless.kernel.org/en/users/Drivers/b43#Comparison_of_recent_drivers
>>
>> I also failed to notice that my system is automatically loading b43,
>> ssb, brcmsmac and bcma.  Is it normal (or necessary) for both drivers
>> to be loaded?
>>
>> Things still seem to work correctly if I blacklist b43.
>
> This is weird, even if b43 claims 802.11 device on your card, it
> should simply exit after detecting unsupported hardware. That should
> let brcmsmac load and work just fine.
>
> If that doesn't work that way, I think it's something wrong there.

In the very first post in this thread, the OP said that he enabled the LCN PHY 
option. Does that change the behavior?

Larry





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