ISO 3166-1: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 Kernel regulatory domain list: https://kernel.googlesource.com/pub/scm/linux/kernel/git/linville/wireless-regdb/+/master/db.txt ====== how to change / create a regulatory domain support list ====== 1.Enable “CFG80211_INTERNAL_REGDB” in the Kernel config CFG80211 INTERNAL_REGDB=y 2.Copy regulatory database(db.txt) download from git://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git to Kernel path "${Kernel}/net/wireless" $ cp db.txt ${Kernel}/net/wireless 3.Rebuild the Kernel