On 2011-10-05 8:09 PM, Daniel Smith wrote:
On 9/2/2011 7:40 PM, Felix Fietkau wrote:
On MIMO chips this can be used to enable/disable hardware chains, ensuring
that the MCS information is updated accordingly.
On non-MIMO chips with rx diversity (e.g. 9285), this configures the rx
input antenna.
I have been working with this patch as I needed the ability to select
the rx chain/antenna on an AR9820.. A problem I have ran into is that
regardless of what I set the antenna chain to, the radiotap header
always reports antenna 1. I know this originates from the rx status
descriptor, but is this really what should be used to report the antenna
when using chains to select the antenna?
Typically all receive chains are used simultaneously when receiving
packets, and the antenna field in the rx status is meaningless. I'm
currently working on a patch that makes per-chain rx signal strength
available in the status info and puts it in the station info available
via nl80211.
- Felix
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