oled_async 0.2.1

Driver for various OLED display controllers. e.g. SH110x SSD130X works with embedded-graphics
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

//! Helpers for use in examples and tests

use embedded_hal::{
    blocking::{
        i2c,
        spi::{self, Transfer},
    },
    digital::v2::OutputPin,
};

#[allow(dead_code)]
#[derive(Debug, Clone, Copy)]
pub struct SpiStub;

impl spi::Write<u8> for SpiStub {
    type Error = ();

    fn write(&mut self, _buf: &[u8]) -> Result<(), ()> {
        Ok(())
    }
}

impl Transfer<u8> for SpiStub {
    type Error = ();

    fn transfer<'a>(&mut self, buf: &'a mut [u8]) -> Result<&'a [u8], ()> {
        Ok(buf)
    }
}

#[allow(dead_code)]
#[derive(Debug, Clone, Copy)]
pub struct PinStub;

impl OutputPin for PinStub {
    type Error = ();

    fn set_high(&mut self) -> Result<(), ()> {
        Ok(())
    }

    fn set_low(&mut self) -> Result<(), ()> {
        Ok(())
    }
}

#[allow(dead_code)]
#[derive(Debug, Clone, Copy)]
pub struct I2cStub;

impl i2c::Write for I2cStub {
    type Error = ();

    fn write(&mut self, _addr: u8, _buf: &[u8]) -> Result<(), ()> {
        Ok(())
    }
}