Hi Markus, First, I think you should squash these two patches, there's no point in adding unused attributes :-) > The respective arguments are optional on tx and included on rx. > Therefore unaware existing software is not affected. This may be true, but doesn't *new* hostapd have to know that this is supported, or otherwise fall back to sending the frames as data frames? Seems to me a (driver) capability for this is needed. johannes