On Wed, 2015-04-08 at 18:29 +0000, Peer, Ilan wrote: > > I saw a patch on ath10k list that enabled VHT for 2.4Ghz for that > > driver/firmware...are you sure it is absolutely not supported? > 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? In addition to this: there's some interest with vendors to enable the higher MCSes that VHT has on 2.4 GHz, so have only 20/40 MHz bandwidth but with up to MCS 9. This is a bit problematic as the standard doesn't really allow this, since as soon as you have VHT IEs you implicitly have support for 80 MHz. There's some ongoing analysis in this area to see how vendors would really want to do this IIRC, but for now I think we should disable it here in hwsim to match what the real devices are doing, and once we figure out how we want to handle the higher MCSes in 2.4 GHz we can enable the same in hwsim. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
