Re: [PATCH 1/2] mac80211_hwsim: Set VHT capabilities only for the 5.2 GHz band

[Jouni Malinen <j@w1.fi>]

On Wed, Apr 08, 2015 at 06:29:38PM +0000, Peer, Ilan wrote:
> According to the 802.11ac amendment: "The IEEE 802.11 VHT STA operates in frequency bands below 6 GHz excluding the 2.4 GHz band", so at least the spec. is clear about it. However, I guess it would be possible to enable VHT for 2.4 as well to enjoy some of benefits, but do you see a reason/use case to enable it also for hwsim?

It does not matter what the standard says on VHT in general; there are
clearly already products out there that allow some capabilities defined
in 802.11ac (mainly, 256-QAM) to be used on the 2.4 GHz band. As far as
hwsim is concerned, I'm already using it to verify the negotiation part
for this (see ap_vht_on_24ghz test case). The main remaining question
for cfg80211/nl80211 is on whether we can come up with a clean way of
advertising driver capability for doing this.

-- 
Jouni Malinen                                            PGP id EFC895FA