[ath9k-devel] ar9003_rxs struct

Adrian Chadd <adrian <at> freebsd.org> writes:

> 
> Hi,
> 
> It's just a placeholder for each of the fields defined. look at
> ath9k_hw_process_rxdesc_edma() for what those fields mean.
> 
> -a
> 

The author of the "Atheros CSI tool" found that there is CSI data just past
this struct on some of the received frames (in the `buf_addr` buffer passed
to the `ath9k_hw_process_rxdesc_edma' function). The author claims that they
experimentally found the CSI data:

https://github.com/xieyaxiongfly/Atheros-CSI-Tool/issues/4

Is this behavior documented anywhere (other than in the source code)? Is
there any way we know for sure which frames contain CSI data?