BCM4322 keeps switching band frequency

[Can selcuk]

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

[Adrian Chadd]

Hi,

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


-adrian

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 ??
[ 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
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
http://lists.infradead.org/mailman/listinfo/b43-dev

[Dora Smith]

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-***@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

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 ??
[ 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
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
http://lists.infradead.org/mailman/listinfo/b43-dev

[Adrian Chadd]

Post by Dora Smith
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.

The MAC has a PHY attached and a radio attached. The broadcom stuff
can actually be, hm:

MAC <-> PHY <-> Radio

MAC <-> PHY-2G <-> radio 2G
PHY-5G <-> radio-5G

and some earlier things:

MAC-2G <-> PHY-2G <-> radio-2G
MAC-5G <-> PHY-5G <-> radio-5G

So MAC and PHY can sometimes need switching...


-adrian

Post by Dora Smith
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
Subject: Re: BCM4322 keeps switching band frequency
Hi,
That's the radio doing scanning. What's the "scan dump" output look like?
-adrian

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 ??
[ 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
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
http://lists.infradead.org/mailman/listinfo/b43-dev

_______________________________________________
b43-dev mailing list
http://lists.infradead.org/mailman/listinfo/b43-dev

[Can selcuk]

Hi,

How do I check the "scan dump" ? Could you please be more specific and
explain what that means ?

Best,
Can

Post by Adrian Chadd

Post by Dora Smith
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.

The MAC has a PHY attached and a radio attached. The broadcom stuff
MAC <-> PHY <-> Radio
MAC <-> PHY-2G <-> radio 2G
PHY-5G <-> radio-5G
MAC-2G <-> PHY-2G <-> radio-2G
MAC-5G <-> PHY-5G <-> radio-5G
So MAC and PHY can sometimes need switching...
-adrian

Post by Dora Smith
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
Subject: Re: BCM4322 keeps switching band frequency
Hi,
That's the radio doing scanning. What's the "scan dump" output look like?
-adrian

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 ??
[ 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
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

Post by Can selcuk
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
http://lists.infradead.org/mailman/listinfo/b43-dev

_______________________________________________
b43-dev mailing list
http://lists.infradead.org/mailman/listinfo/b43-dev