Re: carl9170 problem

[Christian Lamparter <chunkeey@googlemail.com>]

On Tuesday 28 September 2010 03:47:00 Dale Turner wrote:
> >> kernel: ieee80211 phy9: FW: MAC RESET
> > The device failed to send pending data for more than 150ms(HT40) - 300ms,
> > either because the medium was busy, or the AP failed to response at all
> > mostly because it has crashed first.
> > (check if your AP's TSF is no where near your AP's uptime)
> 
> I don't think there are any nearby networks on my channel.
> I purposely change it from default ( 6 ) to 11 (actually wide 9).
What's wide 9? HT40 with the primary channel on 11 and the extension
on 6?
 
> The access point is a Linksys wrt120n (probably not the best, I know).
Isn't this a 1-stream align-n (AR9285) platform? If so then there is
no advantage of using an AR9170 over the AR9271.

> To be honest, I don't know what a TSF is or how to check it.
The TSF keeps the timers for all STAs in the "network" synchronized.
http://en.wikipedia.org/wiki/Timing_Synchronization_Function_%28TSF%29

It can be easily check by: iw dev wlanX scan

e.g.: (sample output)
BSS 00:02:32:0d:d1:32 (on wlan13)
        TSF: 2669831323 usec (0d, 00:44:29) <-------
        freq: 2437

This will tell you that the "network" has an uptime of
0 days, 0 hours, 44 minutes and 29 seconds.

Regards,
	Chr