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Raspberry Pi 3の無線LAN(内蔵WiFi)をオフにする

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はじめに

Raspberry Pi 3 MODEL B、いろいろと設定しています。2通りの内蔵無線LAN(WiFi)をオフにする方法があるようなのでメモしておきます。(2018年1月現在)

記述方法

下記のどちらかを設定すれば大丈夫です。両方とも記載する必要はありません。

/boot/config.txtに書く方法

ファイルの最後に追記します。

/boot/config.txt
# Additional overlays and parameters are documented /boot/overlays/README
+ #turn wifi and bluetooth off
+ dtoverlay=pi3-disable-wifi
+ dtoverlay=pi3-disable-bt

ほかにも機能のオン/オフの制御ができるようなので、チャレンジしてみたい場合は/boot/overlays/READMEまたはGitHubを見てみるとよいかも。

/etc/modprobe.d/raspi-blacklist.conf に書く方法

/etc/modprobe.d/raspi-blacklist.conf
# internal wifi off
blacklist brcmfmac
blacklist brcmutil

# internal bt off
blacklist btbcm
blacklist hci_uart

構築されている環境によって/etc/modprobe.d/raspi-blacklist.confのファイルはあったりなかったりするようです。自分が試した環境ではファイルが無かったので新しく作りました。

参考

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