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|
use rusb::{Context, Device, HotplugBuilder, UsbContext};
struct HotPlugHandler;
impl<T: UsbContext> rusb::Hotplug<T> for HotPlugHandler {
fn device_arrived(&mut self, device: Device<T>) {
println!("device arrived {:?}", device);
}
fn device_left(&mut self, device: Device<T>) {
println!("device left {:?}", device);
}
}
impl Drop for HotPlugHandler {
fn drop(&mut self) {
println!("HotPlugHandler dropped");
}
}
fn main() -> rusb::Result<()> {
if rusb::has_hotplug() {
let context = Context::new()?;
let mut reg = Some(
HotplugBuilder::new()
.enumerate(true)
.register(&context, Box::new(HotPlugHandler {}))?,
);
loop {
context.handle_events(None).unwrap();
if let Some(reg) = reg.take() {
context.unregister_callback(reg);
break;
}
}
Ok(())
} else {
eprint!("libusb hotplug api unsupported");
Ok(())
}
}
|
