keybrd/src/PortReadInterface.h

#ifndef PORTREADINTERFACE_H
#define PORTREADINTERFACE_H
#include <Arduino.h>
#include <inttypes.h>

/*
Port classes are the keybrd library's interface to microcontroller ports or I/O expander ports.

If your 8-bit AVR (Teensy 2) is running low on memory, using a smaller read_pins_t type saves SRAM.
Details are in config_key.h
*/
class PortReadInterface
{
    public:
        virtual void begin()=0;
        virtual uint8_t read()=0;
};
#endif