Hi,
I got a Atheros AR9285 that i can't increase tx-power level over 15 dBM.
The problem is that at such power, the connection is (very) unstable when
i'm not near the AP.
when I try to increae tx-power
[root@Gauchita etc]# iwconfig wlan0 txpower 16dBM
Error for wireless request "Set Tx Power" (8B26) :
SET failed on device wlan0 ; Invalid argument.
[root@Gauchita etc]# iw reg get
country BO:
(2402 - 2482 @ 40), (N/A, 30)
(5735 - 5835 @ 40), (N/A, 30)
More info about environment: (using compat-wireless 3.4-rc3-1 )
[root@Gauchita etc]# uname -a
Linux Gauchita 3.2-CHAKRA #1 SMP PREEMPT Tue Feb 28 14:55:18 UTC 2012
x86_64 Intel(R) Core(TM) i3-2330M CPU @ 2.20GHz GenuineIntel GNU/Linux
[root@Gauchita etc]# hwinfo --wlan
13: PCI 200.0: 0282 WLAN controller
[Created at pci.319]
Unique ID: y9sn.apYiokQ9666
Parent ID: qTvu.lbqpt3ZK2l3
SysFS ID: /devices/pci0000:00/0000:00:1c.1/0000:02:00.0
SysFS BusID: 0000:02:00.0
Hardware Class: network
Model: "Atheros AR9285 Wireless Network Adapter (PCI-Express)"
Vendor: pci 0x168c "Atheros Communications Inc."
Device: pci 0x002b "AR9285 Wireless Network Adapter (PCI-Express)"
SubVendor: pci 0x1a3b
SubDevice: pci 0x1089
Revision: 0x01
Driver: "ath9k"
Driver Modules: "ath9k", "ath9k"
Device File: wlan0
Features: WLAN
Memory Range: 0xd0500000-0xd050ffff (rw,non-prefetchable)
IRQ: 17 (no events)
HW Address: 74:2f:68:01:c2:31
Link detected: yes
WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452
2.457 2.462 2.467 2.472 2.484
WLAN encryption modes: WEP40 WEP104 TKIP CCMP
WLAN authentication modes: open sharedkey wpa-psk wpa-eap
Module Alias: "pci:v0000168Cd0000002Bsv00001A3Bsd00001089bc02sc80i00"
Driver Info #0:
Driver Status: ath9k is active
Driver Activation Cmd: "modprobe ath9k"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #7 (PCI bridge)
[root@Gauchita etc]# modinfo ath9k
filename:
/lib/modules/3.2-CHAKRA/updates/drivers/net/wireless/ath/ath9k/ath9k.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
alias: platform:ar934x_wmac
alias: platform:ar933x_wmac
alias: platform:ath9k
alias: pci:v0000168Cd00000034sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000033sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000032sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000030sv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Esv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Csv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Bsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Asv*sd*bc*sc*i*
alias: pci:v0000168Cd00000029sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000027sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000024sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000023sv*sd*bc*sc*i*
depends: ath9k_hw,ath9k_common,mac80211,ath,cfg80211,compat
vermagic: 3.2-CHAKRA SMP preempt mod_unload modversions
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
parm: blink:Enable LED blink on activity (int)
parm: btcoex_enable:Enable wifi-BT coexistence (int)
If you need any other info, please let me know.
Thanks,
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