Does rt2870 support carrier sensing - it has the HAS_CS_SUPPORT flag in the config.mk file, which is disabled (set to 'n') by default.

Ideally, I would expect that in this case there shouldn't be any carrier sensing at all. But that doesn't seem to be the case.. I took 2 machines, used iperf to send bidirectional UDP traffic simultaneously.. and the throughputs were close to 1/2 of what they would get if sending alone; which implies they are sharing the medium generously.

Any thoughts? I'm trying to disable carrier sensing in rt2870..