# tokio-socketcan-bcm
[](LICENSE)
[](https://crates.io/crates/tokio-socketcan-bcm)
[](https://docs.rs/tokio-socketcan-bcm)
The Broadcast Manager protocol provides a command based configuration
interface to filter and send (e.g. cyclic) CAN messages in kernel space.
Filtering messages in kernel space may significantly reduce the load in an application.
A BCM socket is not intended for sending individual CAN frames.
To send invidiual frames use the [tokio-socketcan](https://crates.io/crates/tokio-socketcan) crate.
This crate would not have been possible without the [socketcan crate](https://github.com/mbr/socketcan-rs).
# Example
```Rust
use std::time;
use tokio_socketcan_bcm::*;
use futures_util::stream::StreamExt;
#[tokio::main]
async fn main() {
let socket = BCMSocket::open_nb("vcan0").unwrap();
let ival = time::Duration::from_millis(0);
// create a stream of messages that filters by the can frame id 0x123
let mut can_frame_stream = socket
.filter_id_incoming_frames(0x123.into(), ival, ival)
.unwrap();
while let Some(frame) = can_frame_stream.next().await {
println!("Frame {:?}", frame);
()
}
}
```