linux-kernel-module-cheat/device-tree.md

Device tree

platform_device.c together with its kernel and QEMU forks contains a minimal runnable example.

Good format descriptions:

• https://www.raspberrypi.org/documentation/configuration/device-tree.md

Minimal example

/dts-v1/;

/ {
    a;
};

Check correctness with:

dtc a.dts

Separate nodes are simply merged by node path, e.g.:

/dts-v1/;

/ {
    a;
};

/ {
    b;
};

then dtc a.dts gives:

/dts-v1/;

/ {
        a;
        b;
};