Initialization

$ make init TARGET=rpi3 BUILDROOT=/home/user/src/buildroot

Possible values for TARGET:

• rpi0: Raspberry Pi Zero
• rpi0w: Raspberry Pi Zero W
• rpi3: Raspberry Pi 3

Buildroot configuration

To change the buildroot configuration, execute:

$ cd /home/usr/src/buildroot
$ make menuconfig
$ make

To change the kernel configuration, execute:

$ cd /home/usr/src/buildroot
$ make linux-menuconfig
$ make

The last commands copies changes made to the kernel configuration to the minikube-iso defconfig.

Saving buildroot configuration changes

To save any buildroot configuration changes made with make menuconfig, execute:

$ cd /home/usr/src/buildroot
$ make savedefconfig

The changes will be reflected in the configs/recorder_$(TARGET)_defconfig file.

Saving kernel configuration changes

To save any kernel configuration changes made with make linux-menuconfig, execute:

$ cd /home/usr/src/buildroot
$ make linux-savedefconfig
$ cp output/build/linux-xxx/defconfig \
    /home/user/src/recorder-buildroot/board/raspi/recorder/linux-xxx_defconfig

Setting up wifi networks

Place a file called networks.conf in the board directory and configure networks in WPA supplicant configuration syntax.

$ cat board/raspi/pi0w/networks.conf 
network={
        ssid="foo"
        psk="secret"
}

Note: This file will be ignored by git and won't be checked in.