config BR2_PACKAGE_WIRELESS_REGDB bool "wireless-regdb" help Wireless regulatory database. Wireless regulatory database. The database lists the allowed radio frequencies for each local jurisdiction. Since linux-4.15 the kernel supports loading the files regulatory.db/regulatory.db.p7s directly from the /lib/firmware directory, for earlier versions the crda helper application is needed. https://wireless.wiki.kernel.org/en/developers/regulatory/wireless-regdb