Thanks for your kind reply. As you mentioned as below, I understand the design philosophy of hw_mode now, and please abandon this patch. Will try to find another approach to do it. >"That is the only currently implemented case, but that hw_mode=any could >certainly be made to work with the not-offloaded ACS case " > 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 <j@xxxxx> > > 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
