[ath9k-devel] Question about Atheros AR9220

[manan <m.manan23@gmail.com>]

 <gtolon <at> inti.gob.ar> writes:

> 
> Thank you for the answer Adrian, i'll try with that. By the way, i've 
> found in the code a register called RFCNT, i guess it's the RXCNT you 
> mentioned.
> 
> Gabriel
> 
> El 20/03/2012 12:30 a.m., Adrian Chadd escribi?:
> > Hi,
> >
> > It's likely a mixture of both.
> >
> > * The channel survey gives you an idea of what percentage of time the
> > NIC thinks the air is busy (RCCNT). RXCNT is the time spent _RX_ing
> > frames, even if they (a) fail FCS/CRC, or (b) aren't destined for it.
> > It's still decoding them. So, you can calculate a rough estimation of
> > the time spent doing "other" by taking RCCNT and subtracting RXCNT.
> > * You should see FCS/CRC errors pop up in RX frames. There's bits in
> > the RX descriptor that get set. There should be CRC error statistics
> > kept by the driver somewhere accessible by debugfs.
> >
> >
> > Adrian
> >
> 


Hi 

I want to know how we can change CCA mode in Atheros chipset and what is
default CCA mode in AR9220.
As I tested with different CCA threshold value but after making High CCA
threshold it is receiving all packets with lower rssi also, is this in CCA
mode 2 as Dan mentioned?

How to get CCA mode the atheros chip is using?


Thanks
manan