Struct ScancodeSet1

Source

pub struct ScancodeSet1 { /* private fields */ }

Expand description

Contains the implementation of Scancode Set 1.

See the OS dev wiki: https://wiki.osdev.org/PS/2_Keyboard#Scan_Code_Set_1

Implementations§

Source §

impl ScancodeSet1

Source

pub const fn new() -> ScancodeSet1

Construct a new ScancodeSet1 decoder.

Examples found in repository ?

examples/scancodes.rs (line 4)

3fn main() {
4    let mut s = ScancodeSet1::new();
5    // [ 0x01 ] means "Pressed Escape" in Set 1
6    match s.advance_state(0x01) {
7        Ok(Some(KeyEvent { code, state })) => {
8            println!("Scancode Set 1 0x01 is KeyCode '{code:?}' KeyState '{state:?}'");
9        }
10        Ok(None) => {
11            println!("This is wrong, we didn't think that was a complete sequence");
12        }
13        Err(e) => {
14            println!("There was an error: {e:?}");
15        }
16    }
17    // [ 0x81 ] means "Released Escape" in Set 1
18    match s.advance_state(0x81) {
19        Ok(Some(KeyEvent { code, state })) => {
20            println!("Scancode Set 1 0x81 is KeyCode '{code:?}' KeyState '{state:?}'");
21        }
22        Ok(None) => {
23            println!("This is wrong, we didn't think that was a complete sequence");
24        }
25        Err(e) => {
26            println!("There was an error: {e:?}");
27        }
28    }
29
30    let mut s = ScancodeSet2::new();
31    // [ 0x01 ] means "Pressed F9" in Set 2
32    match s.advance_state(0x01) {
33        Ok(Some(KeyEvent { code, state })) => {
34            println!("Scancode Set 2 0x01 is KeyCode '{code:?}' KeyState '{state:?}'");
35        }
36        Ok(None) => {
37            println!("This is wrong, we didn't think that was a complete sequence");
38        }
39        Err(e) => {
40            println!("There was an error: {e:?}");
41        }
42    }
43    // [ 0xF0, 0x01 ] means "Released F9" in Set 2
44    assert_eq!(Ok(None), s.advance_state(0xF0));
45    match s.advance_state(0x01) {
46        Ok(Some(KeyEvent { code, state })) => {
47            println!("Scancode Set 2 0xF0 0x01 is KeyCode '{code:?}' KeyState '{state:?}'");
48        }
49        Ok(None) => {
50            println!("This is wrong, we didn't think that was a complete sequence");
51        }
52        Err(e) => {
53            println!("There was an error: {e:?}");
54        }
55    }
56}