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Jan 18, 2021
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Update docs on how to install with Raspberry Pi 4 #65

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Update docs on how to install with Raspberry Pi 4
Tiryoh Jan 16, 2021
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Update README.md
Tiryoh Jan 18, 2021
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3 changes: 2 additions & 1 deletion README.md
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Expand Up @@ -60,7 +60,8 @@ rtmouseをインストールして不具合が出た場合のみ以下の設定
Edit [`rtmouse.c`](https://github.com/rt-net/RaspberryPiMouse/blob/dd0343449951a99b067e24aef3c03ae5ed9ab936/src/drivers/rtmouse.c#L54) to change the defined value `RASPBERRYPI` from '2' to '4'.

Raspberry Pi 4ではCPUのレジスタがそれまでのRaspberry Piとは異なります（[issues#21](https://github.com/rt-net/RaspberryPiMouse/issues/21)）。
Raspberry Pi 4で本ドライバを使用する際には`rtmouse.c`の以下の行（2020年4月13日現在の最新版のv2.1.0では[54行目](https://github.com/rt-net/RaspberryPiMouse/blob/dd0343449951a99b067e24aef3c03ae5ed9ab936/src/drivers/rtmouse.c#L54)）を`RASPBERRYPI 4`に書き換えて手動でビルドする必要があります。
Raspberry Pi 4で本ドライバを使用する際には`rtmouse.c`の以下の行（2020年4月13日現在の最新版のv2.1.0では[54行目](https://github.com/rt-net/RaspberryPiMouse/blob/dd0343449951a99b067e24aef3c03ae5ed9ab936/src/drivers/rtmouse.c#L54)）を`RASPBERRYPI 4`に書き換えてビルドする必要があります。
※[`./utils/build_install.bash`](./utils/build_install.bash)を実行すると、Raspberry Piのモデルに合わせて[`rtmouse.c`](./src/drivers/rtmouse.c)が[自動で書き換わります](https://github.com/rt-net/RaspberryPiMouse/blob/a9af4fa2b2a8e34c0f93a6ce5cf88ebd50ff39c2/utils/build_install.raspi4ubuntu.bash#L13-L14)。

```c
// define the Raspberry Pi version here
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