Beep the PC speaker using evdev
.
The current user must be allowed to r/w to the speaker device:
$ cat /etc/udev/rules.d/70-pcspkr-beep.rules
ACTION=="add", SUBSYSTEM=="input", ATTRS{name}=="PC Speaker", ENV{DEVNAME}!="", GROUP="beep", MODE="0660"
```rust extern crate beep_evdev;
use beep_evdev::beep; use std::{thread, time};
fn main() { beep(440).expect("could not beep"); thread::sleep(time::Duration::frommillis(500)); beep(880).expect("could not beep"); thread::sleep(time::Duration::frommillis(500)); beep(0).expect("could not beep"); } ```