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# Libudev
This crate provides a safe wrapper around the native `libudev` library. It applies the RAII pattern
and Rust lifetimes to ensure safe usage of all `libudev` functionality. The RAII pattern ensures
that all acquired resources are released when they're no longer needed, and Rust lifetimes ensure
that resources are released in a proper order.
* [Documentation](http://dcuddeback.github.io/libudev-rs/libudev/)
## Dependencies
In order to use the `libudev` crate, you must have a Linux system with the `libudev` library
installed where it can be found by `pkg-config`. To install `libudev` on Debian-based Linux
distributions, execute the following command:
```
sudo apt-get install libudev-dev
```
`libudev` is a Linux-specific package. It is not available for Windows, OS X, or other operating
systems.
### Cross-Compiling
The `libudev` crate can be used when cross-compiling to a foreign target. Details on how to
cross-compile `libudev` are explained in the [`libudev-sys` crate's
README](https://github.com/dcuddeback/libudev-sys#cross-compiling).
## Usage
Add `libudev` as a dependency in `Cargo.toml`:
```toml
[dependencies]
libudev = "0.2"
```
If you plan to support operating systems other than Linux, you'll need to add `libudev` as a
target-specific dependency:
```toml
[target.x86_64-unknown-linux-gnu.dependencies]
libudev = "0.2"
```
Import the `libudev` crate. The starting point for nearly all `libudev` functionality is to create a
context object.
```rust
extern crate libudev;
fn main() {
let context = libudev::Context::new().unwrap();
let mut enumerator = libudev::Enumerator::new(&context).unwrap();
enumerator.match_subsystem("tty").unwrap();
for device in enumerator.scan_devices().unwrap() {
println!("found device: {:?}", device.syspath());
}
}
```
## Contributors
* [dcuddeback](https://github.com/dcuddeback)
* [Susurrus](https://github.com/Susurrus)
## License
Copyright © 2015 David Cuddeback
Distributed under the [MIT License](LICENSE).
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