ssd1306 0.2.3

I2C/SPI driver for the SSD1306 OLED display controller
Documentation 
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//! Display size

// TODO: Add to prelude
/// Display size enumeration
#[derive(Clone, Copy)]
pub enum DisplaySize {
    /// 128 by 64 pixels
    Display128x64,
    /// 128 by 32 pixels
    Display128x32,
    /// 96 by 16 pixels
    Display96x16,
}

impl DisplaySize {
    /// Get integral dimensions from DisplaySize
    // TODO: Use whatever vec2 impl I decide to use here
    pub fn dimensions(&self) -> (u8, u8) {
        match *self {
            DisplaySize::Display128x64 => (128, 64),
            DisplaySize::Display128x32 => (128, 32),
            DisplaySize::Display96x16 => (96, 16),
        }
    }
}