On Tue December 14 2010 11:23:09 Daniel Halperin wrote:
> > diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
> > index b8fa25d..63b603c 100644
> > --- a/include/linux/nl80211.h
> > +++ b/include/linux/nl80211.h
> > @@ -841,6 +841,9 @@ enum nl80211_commands {
> > * the hardware should not be configured to receive on this antenna.
> > * For a more detailed descripton see @NL80211_ATTR_WIPHY_ANTENNA_TX.
> > *
> > + * @NL80211_ATTR_WIPHY_ANTENNA_AVAIL: Bitmap of antennas which are
> > available for + * configuration via the above parameters.
> > + *
>
> Not clear exactly what the point of this is -- there's no commit
> message -- but should not this API distinguish between TX and RX?
> E.g., several chipsets can only TX from a subset of RX antennas.
This is just the nl80211 part of a patch that got merged earlier, the
description of which has more info:
https://patchwork.kernel.org/patch/389682/
If it's necessary to distinguish between RX and TX it has to be done there
too. Can you give us examples of these chipsets which you mentioned?
bruno
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