BCM4322 keeps switching band frequency

[Dora Smith <tiggernut24@yahoo.com>]

I'm confused.  A MAC is not a radio.   A wireless card definitely scans for 
things to connect to, and then you choose a connection and connect.

If I ever ran into the card switching frequencies, I didn't know it.  I did 
however have constant problems with the connection.

I finally gave up on that card and installed another one with a different 
manufacturer; no problems since.

Dora

-----Original Message----- 
From: Adrian Chadd
Sent: Wednesday, February 22, 2017 6:30 PM
To: Can selcuk
Cc: b43-dev at lists.infradead.org
Subject: Re: BCM4322 keeps switching band frequency

Hi,

That's the radio doing scanning. What's the "scan dump" output look like?


-adrian


On 22 February 2017 at 04:51, Can selcuk <can.selcuk@limsi.fr> wrote:
> Hi I do have an old macbook (late 2008) with an embedded BCM4322 wireless
> device. I use the b43 driver and I keep getting disconnected/reconnected 
> as
> the driver switches band frequencies ..  I always had this issue with all
> the kernels I used. Do you guys have any idea how to force the driver
> working at a single frequency ??
>
> dmesg :
>
> [   58.001746] b43-phy0 debug: Switching to 2.4 GHz band
> [   58.174227] b43-phy0 debug: Switching to 5 GHz band
> [   58.592232] b43-phy0 debug: Switching to 2.4 GHz band
> [   58.763176] b43-phy0 debug: Switching to 5 GHz band
> [   59.184229] b43-phy0 debug: Switching to 2.4 GHz band
> [   59.355203] b43-phy0 debug: Switching to 5 GHz band
> [   59.776220] b43-phy0 debug: Switching to 2.4 GHz band
> [   59.947211] b43-phy0 debug: Switching to 5 GHz band
> [   60.368227] b43-phy0 debug: Switching to 2.4 GHz band
> [   60.539231] b43-phy0 debug: Switching to 5 GHz band
> [   60.960210] b43-phy0 debug: Switching to 2.4 GHz band
> [ 61.135034] b43-phy0 debug: Switching to 5 GHz band
> [   61.552285] b43-phy0 debug: Switching to 2.4 GHz band
> [   61.723233] b43-phy0 debug: Switching to 5 GHz band
> [   62.145194] b43-phy0 debug: Switching to 2.4 GHz band
> [   62.321226] b43-phy0 debug: Switching to 5 GHz band
> [   62.736254] b43-phy0 debug: Switching to 2.4 GHz band
> [   62.913209] b43-phy0 debug: Switching to 5 GHz band
> [   63.328209] b43-phy0 debug: Switching to 2.4 GHz band
> [   63.500552] b43-phy0 debug: Switching to 5 GHz band
> [   63.920224] b43-phy0 debug: Switching to 2.4 GHz band
> [   64.094227] b43-phy0 debug: Switching to 5 GHz band
> [   64.512215] b43-phy0 debug: Switching to 2.4 GHz band
> [   64.685221] b43-phy0 debug: Switching to 5 GHz band
> [   65.112208] b43-phy0 debug: Switching to 2.4 GHz band
> [   65.284251] b43-phy0 debug: Switching to 5 GHz band
>
>
> uname -a
>
> Linux djanboox 4.9.6-gentoo-r1-nouveau-kernel #2 SMP PREEMPT Wed Feb 22
> 12:25:07 CET 2017 x86_64 Intel(R) Core(TM)2 Duo CPU P7350 @ 2.00GHz
> GenuineIntel GNU/Linux
>
> lspci -vvn|grep 43 -A7
> 03:00.0 0280: 14e4:432b (rev 01)
>         Subsystem: 106b:008d
>         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
> ParErr-
> Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 0, Cache Line Size: 256 bytes
>         Interrupt: pin A routed to IRQ 20
>         Region 0: Memory at 93100000 (64-bit, non-prefetchable) [size=16K]
>         Capabilities: [40] Power Management version 3
> --
>         Kernel driver in use: b43-pci-bridge
>
> Best,
> Can
>
> _______________________________________________
> b43-dev mailing list
> b43-dev at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/b43-dev

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