| # Driver Metadata Examples |
| |
| Here are examples of how to send, retrieve, and forward metadata between drivers using the `//sdk/lib/driver/metadata` library. |
| |
| ## Defining Metadata |
| |
| The `fuchsia.examples.metadata` FIDL library is an example of how to define metadata. |
| |
| ## Sending Metadata |
| |
| The `sender` driver is an example of how a driver can send metadata to its child nodes. |
| |
| ## Retrieving Metadata |
| |
| The `retriever` driver is an example of how a driver can retrieve metadata from parent node. |
| |
| ## Forward Metadata |
| |
| The `forwarder` driver is an example of how a driver can forward metadata from its parent node to its child nodes. |
| |
| ## Testing |
| |
| Include the tests to your build by appending `--with-test //examples/drivers/metadata:tests` to your `fx set` command. For example: |
| |
| ``` |
| $ fx set core.x64 --with-test //examples/drivers/metadata:tests |
| $ fx build |
| ``` |
| |
| Run unit tests with the command: |
| ``` |
| $ fx test metadata_example_test |
| ``` |
