Wifi/IEEE 802.11

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This page is a translated version of the page Wifi/IEEE 802.11 and the translation is 83% complete.
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至少需要激活cfg80211CONFIG_CFG80211)和 mac80211CONFIG_MAC80211)。

内核 linux-4.19 示例
[*] Networking support  --->
    [*] Wireless  --->
        <M>   cfg80211 - wireless configuration API
        [ ]     nl80211 testmode command
        [ ]     enable developer warnings
        [ ]     cfg80211 certification onus
        [*]     enable powersave by default
        [ ]     cfg80211 DebugFS entries
        [ ]     support CRDA
        [ ]     cfg80211 wireless extensions compatibility
        <M>   Generic IEEE 802.11 Networking Stack (mac80211)
        [*]   Minstrel
        [*]     Minstrel 802.11n support
        [ ]       Minstrel 802.11ac support
              Default rate control algorithm (Minstrel)  --->
        [ ]   Enable mac80211 mesh networking (pre-802.11s) support
        -*-   Enable LED triggers
        [ ]   Export mac80211 internals in DebugFS
        [ ]   Trace all mac80211 debug messages
        [ ]   Select mac80211 debugging features  ----

Minstrel 和 802.11n 支持速率控制算法,一些无线设备可能需要开启这个选项。

重要
In case the wireless configuration API (CONFIG_CFG80211) is built into the kernel (<*>) instead as a module (<M>), the driver won't be able to load regulatory.db from /lib/firmware resulting in broken regulatory domain support. Please set CONFIG_CFG80211=m or add regulatory.db and regulatory.db.p7s (from net-wireless/wireless-regdb) to CONFIG_EXTRA_FIRMWARE.