Function get_handle_for_protocol 

pub fn get_handle_for_protocol<P: ProtocolPointer + ?Sized>() -> Result<Handle>

Find an arbitrary handle that supports a particular Protocol. Returns NOT_FOUND if no handles support the protocol.

This method is a convenient wrapper around locate_handle_buffer for getting just one handle. This is useful when you don’t care which handle the protocol is opened on. For example, DevicePathToText isn’t tied to a particular device, so only a single handle is expected to exist.

Example

use uefi::proto::device_path::text::DevicePathToText;
use uefi::{boot, Handle};

let handle = boot::get_handle_for_protocol::<DevicePathToText>()?;
let device_path_to_text = boot::open_protocol_exclusive::<DevicePathToText>(handle)?;

Errors

• Status::NOT_FOUND: no matching handle.
• Status::OUT_OF_RESOURCES: out of memory.