On Tue, May 31, 2011 at 5:46 PM, Adrian Chadd [off-list ref] wrote:

Hi,

On 1 June 2011 03:51, Daniel Halperin [off-list ref] wrote:

quoted

On Tue, May 31, 2011 at 12:36 PM, Gabor Juhos [off-list ref] wrote:

quoted

It is a 1x1 chip and supports 2.4GHz only.

[snip]

quoted

 ath9k: enable antenna diversity for AR9330

I'm confused by the combination of these two.

I bet it's like the AR9285 - there's one TX and one RX chain, but two
RX inputs, two LNAs and some controllable bits to determine how the
baseband controls how the LNAs are configured/combined for packet RX.

For clarity (heh), see the diversity combining code in recv.c; it
outlines the various LNA combination modes.

Gotcha. I was under the impression that Atheros has historically
marketed these (misleadingly) as '1x2' devices, e.g., see the '3x3'
devices that have 3 antennas but only 2 chains.

Dan