Trait pca9539::pins::AccessMode

pub trait AccessMode { }

Marker trait defining how the state of pins is handled.

Currently there are two modes supported:

• Regular: State of the pin is synchronously fetched from I2C bus when calling functions like is_high()
• Refreshable: State of all pins is refreshed explicitly and functions like is_high() are working on a cached state. This reducing the I2C overhead

Implementors

impl AccessMode for RefreshMode

impl AccessMode for RegularAccessMode