b43 help,

Cheng Renquan crquan at gmail.com
Sat Jul 31 01:56:53 EDT 2010


Today I was using this computer with boradcom4312 with b43 (for
14e4:4312) driver, in an environment there were 30~40 wifi hotspot,
some encrypted some not, all other win/mac can connect one unencrypted
wifi while my ubuntu 10.04 with this b43 driver cannot, all I know to
try is "modprobe -r b43" and "modprobe b43"; iwconfig/iwlist output
also seems good,

I post the pci data and dmesg log, in the hope of someone could
analyze and see how to improve, thanks;

# lspci -D -nn -vv -d 14e4:
0000:02:00.0 Network controller [0280]: Broadcom Corporation BCM4312
802.11b/g [14e4:4315] (rev 01)
	Subsystem: Hewlett-Packard Company Device [103c:1508]
	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
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at d8500000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=2 PME-
	Capabilities: [58] Vendor Specific Information <?>
	Capabilities: [e8] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
		Address: 0000000000000000  Data: 0000
	Capabilities: [d0] Express (v1) Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
			ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0
<4us, L1 <64us
			ClockPM+ Suprise- LLActRep- BwNot-
		LnkCtl:	ASPM L0s L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
	Capabilities: [100] Advanced Error Reporting <?>
	Capabilities: [13c] Virtual Channel <?>
	Capabilities: [160] Device Serial Number ff-ff-00-ff-ff-00-00-00
	Capabilities: [16c] Power Budgeting <?>
	Kernel driver in use: b43-pci-bridge
	Kernel modules: ssb

--
Cheng Renquan, Singapore



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