On Fri, Apr 19, 2024 at 04:00:17AM +0000, David Lin wrote: > Can you let me know what does "external_auth" mean? Look around for NL80211_CMD_EXTERNAL_AUTH. It's in nl80211.h with plenty of comments. (And also cfg80211_ops::cfg80211_ops, cfg80211_external_auth_request, ...) I've never looked at this interface before, personally. It seems to rely on cfg80211_ops::mgmt_tx support too; that seems to exist in mwifiex, although I have no clue the quality of support there. Brian