#393: Txpower malfunction
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Reporter: anonymous | Owner: dyqith
Type: defect | Status: assigned
Priority: minor | Milestone: version 1.0.0 - first stable
release
Component: madwifi: driver | Version: trunk
Resolution: | Keywords:
Patch_attached: 0 |
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Comment (by [EMAIL PROTECTED]):
The NMP 8602 (FCC) still has problem with latest madwifi-ng SVN (r1663).
400mw TXpower under 11bg can not be achieved.
Basically all others power setting (that list out by "iwlist txpower") is
ok.
Spectrum showing the txpower achieved does not exceed cards with 40mw.
Initial txpower (most of case) is 15mw. Wierdly, the initial txpower can
be vary.
Max txpower can be drove 19mw.
Here some info:
* Using Linux kernel 2.4.32, OS: CfLinux (www.cflinux.hu)
* close look into chipset, found: AR5413A
* PCI ID: cat /proc/pci
{{{
Ethernet controller: PCI device 168c:001b (rev 1).
}}}
* Exec: dmesg | tail -n40
{{{
ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413,
RF5413)
wlan: 0.8.4.2 (svn r1663)
ath_rate_sample: 1.2 (svn r1663)
ath_pci: 0.9.4.5 (svn r1663)
wifi0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
wifi0: H/W encryption support: WEP AES AES_CCM TKIP
wifi0: mac 10.4 phy 6.1 radio 6.3
wifi0: Use hw queue 1 for WME_AC_BE traffic
wifi0: Use hw queue 0 for WME_AC_BK traffic
wifi0: Use hw queue 2 for WME_AC_VI traffic
wifi0: Use hw queue 3 for WME_AC_VO traffic
wifi0: Use hw queue 8 for CAB traffic
wifi0: Use hw queue 9 for beacons
wifi0: Atheros 5212: mem=0xa0000000, irq=10
ap0 (WE) : Buffer for request SIOCGIWPRIV too small (16<144)
ap0 (WE) : Buffer for request SIOCGIWPRIV too small (32<144)
ap0 (WE) : Buffer for request SIOCGIWPRIV too small (64<144)
ap0 (WE) : Buffer for request SIOCGIWPRIV too small (128<144)
}}}
* Exec: iwlist ap0 txpower
{{{
ap0 8 available transmit-powers :
0 dBm (1 mW)
7 dBm (5 mW)
9 dBm (7 mW)
11 dBm (12 mW)
13 dBm (19 mW)
15 dBm (31 mW)
17 dBm (50 mW)
19 dBm (79 mW)
Current Tx-Power:19 dBm (79 mW)
}}}
* Exec: iwconfig ap0
{{{
ap0 IEEE 802.11g ESSID:"eBAP"
Mode:Master Frequency:2.427 GHz Access Point:
00:02:6F:xx:xx:xx
Bit Rate:0 kb/s Tx-Power:19 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:xxxx-xxxx-xx Security mode:restricted
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:2077 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
}}}
* Exec: iwconfig ap0 txpower 20
{{{
Error for wireless request "Set Tx Power" (8B26) :
SET failed on device ap0 ; Invalid argument.
}}}
--
Ticket URL: <http://madwifi.org/ticket/393>
MadWifi <http://madwifi.org/>
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