@

use kernel::prelude::*;
use kernel::error::Result; // Use this for the return type

// Import the `module` item itself, plus the `KernelModule` trait and `Module` type
use kernel::module::{self, KernelModule, Module}; 

struct HelloWorldModule;

/// This is called when you `insmod` the module.
// Use the full path `module::KernelModule` to be unambiguous
impl module::KernelModule for HelloWorldModule {
    fn init(_module: &'static Module) -> Result<Self> {
        pr_info!("rust_hello: Hello, world! My first Rust module is alive!\n");
        Ok(HelloWorldModule)
    }
}

/// This is called when you `rmmod` the module.
impl Drop for HelloWorldModule {
    fn drop(&mut self) {
        pr_info!("rust_hello: Goodbye, world! Cleaning up.\n");
    }
}

// Register the module with the kernel
module! {
    type: HelloWorldModule,
    name: b"rust_hello",
    author: b"Anas",
    description: b"Anas's first 'hello world' Rust kernel module",
    license: b"GPL v2",
}