I also have "adapter 1" the WPEA-111N AR9280 Half-mini card and I can ACK that
my TxPower output is buggy.
The TxPower does not seem to adjust in Ad Hoc mode and sometimes not in
Infrastructure either. Here is my system info:
~/Desktop$ uname -a
Linux B-netbook 2.6.32-24-generic #41-Ubuntu SMP Thu Aug 19 01:12:52 UTC 2010
i686 GNU/Linux
~/Desktop$ sudo lspci -vvv
05:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network
Adapter (PCI-Express) (rev 01)
Subsystem: Lite-On Communications Inc Device 6512
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: 32 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f0100000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
Address: 00000000 Data: 0000
Capabilities: [60] Express (v1) Legacy Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr+ FatalErr- UnsuppReq+ AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM unknown, Latency L0 <512ns, L1
<64us
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 128 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt-
ABWMgmt-
Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
Vector table: BAR=0 offset=00000000
PBA: BAR=0 offset=00000000
Capabilities: [100] Advanced Error Reporting <?>
Capabilities: [140] Virtual Channel <?>
Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: ath9k
Kernel modules: ath9k
~/Desktop$ sudo lshw
*-network
description: Wireless interface
product: AR928X Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: p...@0000:05:00.0
logical name: wlan2
version: 01
serial: 00:0e:8e:28:01:ec
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list
ethernet physical wireless logical
configuration: broadcast=yes driver=ath9k
driverversion=2.6.32-24-generic firmware=N/A ip=192.168.1.1 latency=0 link=yes
multicast=yes wireless=IEEE 802.11abgn
resources: irq:16 memory:f0100000-f010ffff
>
>Date: Mon, 6 Dec 2010 23:47:48 -0800
From: Blaise Gassend <[email protected]>
Subject: Re: [ath9k-devel] Is setting txpower in master mode on ath9k
supposed to work?
To: Brian Prodoehl <[email protected]>
Cc: [email protected]
Message-ID:
<[email protected]>
Content-Type: text/plain; charset=ISO-8859-1
> Which chipset are you using? ?On which cards? ?With the AR9280/AR9220,
> I see the output power is pretty close to what is being set through iw
> (measured with a spectrum analyzer). ?I've been selecting output
> levels between 5 and 17dBm.
>I agree that with my adapter 2, things behave well from 5 to 17dBm.
(Adapter 1 works well from 3 to 20, but with worse calibration.)
However, there the fact that it goes to a high power level from 0 to 5
dBm is disturbing to me. At best it is very misleading, and at worst
it could cause regulatory violations.
>Adapter 1 is a PCI-E adapter from Sparklan
http://sparklan.com/product.php?func=view&prod_id=157
http://sparklan.com/product.php?func=view&prod_id=63
(I have one of each, and they behave identically.)
03:00.0 Network controller: Atheros Communications Inc. AR928X
Wireless Network Adapter (PCI-Express) (rev 01)
Subsystem: Lite-On Communications Inc Device 6512
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at fbaf0000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath9k
Kernel modules: ath9k
>Adapter 2 is an Ubiquiti SR71-A (http://ubnt.com/sr71a)
02:02.0 Network controller: Atheros Communications Inc. AR9160
802.11abgn Wireless PCI Adapter (rev 01)
Subsystem: Device 0777:4082
Flags: bus master, 66MHz, medium devsel, latency 168, IRQ 16
Memory at fb9e0000 (32-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath9k
Kernel modules: ath9k
------------------------------
Brandon M. Combs
[email protected]
mypage.iusb.edu/~brmcombs
(574)202-0972
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