First, you can create an object of the FlattenedDeviceTree class by reading a byte blob. You can also create a new, empty tree and populate it manually.

Manipulate the tree by adding, changing and removing nodes and properties and write the changed tree back to the blob.

Reading

To read the FDT file, use:

var blob = File.ReadAllBytes(file.dtb); // or any other way you need
var fdt = new FlattenedDeviceTree(binaryBlob);

Manipulating

For a newly created tree, or one just read from file, you can access the root node via the Root property; then each node contains two collections:

Subnodes - containing subnodes;
Properties - containing objects of the Property class.

A Property is a general node entry (also called property in the specification) which has its name and data. Data is available as a byte array or a null terminated string. Other useful types will be implemented when needed.

Writing

To write the tree into a file:

// fdt is a FlattenedDeviceTree object
var outputBlob = fdt.GetBinaryBlob();

License

The library is released under the MIT license. See the LICENSE file for details.