Also, several vendors are advertising QCA9980 and QCA9984 based access points with 256QAM support in 2.4GHz, such as the TP-Link AD7200 and the Netgear R7800, both of which advertise 800mbps 4-stream 2.4GHz capabilities.
> On Apr 21, 2016, at 4:09 PM, Sebastian Gottschall <s.gottsch...@dd-wrt.com> > wrote: > > Am 21.04.2016 um 17:15 schrieb Ben Greear: >> On 04/21/2016 06:17 AM, Kalle Valo wrote: >>> From: Johannes Berg <johannes.b...@intel.com> >>> >>> According to the spec, VHT doesn't exist in 2.4GHz. >>> >>> There are vendor extensions to allow a subset of VHT to work >>> (notably 256-QAM), but since mac80211 doesn't support those >>> advertising VHT capability on 2.4GHz leads to the behaviour >>> of reporting VHT capabilities but not being able to use any >>> of them due to mac80211's code requiring 80 MHz support. >>> >>> Remove the VHT capabilities from 2.4GHz for now. If mac80211 >>> gets extended to use the (likely Broadcom) vendor IEs for it >>> and handles the lack of 80 MHz support, it can be added back. >>> >>> Signed-off-by: Johannes Berg <johannes.b...@intel.com> >>> Signed-off-by: Kalle Valo <kv...@qca.qualcomm.com> >> >> The thing is, it actually works just fine with the patch I posted >> to fix mac80211, and at any rate, even if the mac80211 patch isn't >> applied, the ath10k driver works just fine in HT mode. >> >> Have you actually found any case where the existing behaviour causes >> a real problem? > i agree. other vendor chipsets to support QAM256 as well in 2.4 ghz (notably > broadcom) > this is nonstandard, but since all going the same way it wouldnt be a great > idea to keep QCA out of that extensions. >> >> Thanks, >> Ben >> > > > _______________________________________________ > ath10k mailing list > ath10k@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/ath10k _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k
