[ath9k-devel] Question about Atheros AR9220

[gtolon at inti.gob.ar <gtolon@inti.gob.ar>]

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
>