On Fri, Jan 03, 2020 at 10:23:32AM +0800, Neo Jou wrote: > In the hostapd.conf, it is said that > "a special value "any" can be used to indicate that any support band can be > used. This special case is currently supported only with drivers with > which offloaded ACS is used.". > > And in the current hostapd program, it fails if we set "hw_mode=any" > without QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY. > > So it seems hw_mode=any is only for ACS offload case. That is the only currently implemented case, but that hw_mode=any could certainly be made to work with the not-offloaded ACS case and that would be the correct approach to take here. At its simplest form, this could pick any one of the bands that the driver supports and fill in hw_mode based on that. > The doubt is that "hw_mode=any has nothing to say on whether ACS > should or should not be offloaded" as you said. Based on the > description in hostapd.conf and the behavior at the hostapd program, > it seems "hw_mode=any" is only for ACS offloaded. It is not in any way implying that the configuration item would be designed to work only with the offloaded case and no such implication should be made explicit by breaking this for any use case. There is no point in changing the meaning of hw_mode=any if the goal is to make that work with a driver that does not use ACS offloading; it would be much more valuable to make hw_mode=any work with such a driver (i.e., with the not offloaded ACS version). -- Jouni Malinen PGP id EFC895FA _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
