Thomas, Dave, Adrian, Johannes, Thanks for comments and encouragement. I bought the TP-Link TL-WA901ND access point and TP-Link TL-WDN4800 PCIe card. Had no problem getting them talking to each other with ath9k, and the rate table contains 52 entries, so plenty to start out with. I've written a follow-up post about it if anybody's interested: http://www.openias.org/bayesian-wifi-materials-and-methods Cheers, Björn On Wed, Oct 26, 2016 at 7:56 AM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > >> The intel 7260 and later parts also allow user controllable rate >> control and provide transmit completion feedback, but I don't know >> whether it's enough for your needs. > > Perhaps. However, existing rate control is *very* tightly coupled to > the driver, and it'd be fairly pointless to disentangle just for the > sake of playing with a rate control algorithm. > > Also, the device doesn't support per-frame control nor any kind of > sampling-with-table-fallback, only the rate table that you give to the > device and update. > > Btw, mac80211_hwsim with wmediumd doing some medium simulation might > also be something to look at for just extending to VHT. > > And come to think of it, there's this new driver Felix et al have been > working on, mt7601u, which also should support proper rate control > APIs. > > johannes
