On Saturday 06 March 2010 08:35:24 Xingang Zhang wrote:
> Hello,
>
> I used to check the link quality with "iwconfig" and it outputs something
> like:
>
> wlan0 IEEE 802.11abg ESSID:"xxxx"
> Mode:Managed Frequency:2.462 GHz Access Point:
> 00:18:3A:B9:54:02 Bit Rate=54 Mb/s Tx-Power=14 dBm
> Retry long limit:7 RTS thr:off Fragment thr:off
> Power Management:off
> Link Quality=70/70 Signal level=-29 dBm
> Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
> Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>
> However, when I check the wlan0 status with ath5k in IBSS mode, it only
> outputs:
>
> wlan0 IEEE 802.11abg ESSID:"ath5k"
> Mode:Ad-Hoc Frequency:5.2 GHz Cell: A5:A5:A5:A5:A5:A5
> Tx-Power=1 dBm
> Retry long limit:7 RTS thr:off Fragment thr:off
> Power Management:off
>
> Any idea how I can obtain the stats like link quality and Rx invalid
> nwid, etc. like Madwifi
> driver?
a general link quality statement does not make sense in IBSS mode because you
have different link qualities and bit rates for different stations. therefore
the above iwconfig output is not very informative... some would say plain
wrong. you can use iw to get some per station statistics. e.g.:
r...@rk1:~# iw dev wlan0 station dump
Station 00:0e:8e:25:92:7f (on wlan0)
inactive time: 100 ms
rx bytes: 73986
rx packets: 1254
tx bytes: 0
tx packets: 0
signal: -33 dBm
tx bitrate: 6.0 MBit/s
also you can see some statistics in debugfs (if you enabled it in menuconfig):
/sys/kernel/debug/ieee80211/phy0/statistics/
i don't know where "Rx invalid nwid", etc. went unfortunately...
bruno
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