On Tue December 14 2010 12:11:52 Daniel Halperin wrote:
> Several of the Intel ones, I believe. For instance 4965 can RX with 3
> antennas but can maybe only TX with A and B? Intel also has a 1x2
> (5100 maybe?) chipset.
A lot of maybees ;) Can anyone else comment? Do we need available antennas
separately for RX and TX?
bruno
> On Mon, Dec 13, 2010 at 6:31 PM, Bruno Randolf <br1@xxxxxxxxxxx> wrote:
> > 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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