I2CInput Class Reference

Base class for switches/buttons attached to an I2C GPIO expander. More...

#include <InputHardware.hpp>

Public Member Functions
	I2CInput (uint8_t address7Bits, I2CBus bus=I2CBus::PRIMARY, uint8_t max_speed_mult=1)
	Construct a new I2CButtonsInput object.
Public Member Functions inherited from DigitalInput
virtual uint64_t	read (uint64_t lastState)=0
	Read the current state of the inputs (pressed or released)

Protected Attributes
void *	device = nullptr
	Slave device in the I2C API (must be type-casted)

Additional Inherited Members
Public Attributes inherited from DigitalInput
uint64_t	mask = ~0ULL
	Input mask. For read-only.
Protected Member Functions inherited from DigitalInput
void	addToMask (uint64_t bitmap)
	Add an input bitmap to the current mask.

Detailed Description

Base class for switches/buttons attached to an I2C GPIO expander.

Note

All buttons must work in negative logic (pulled up)

Definition at line 316 of file InputHardware.hpp.

Constructor & Destructor Documentation

I2CInput()

I2CInput::I2CInput	(	uint8_t	address7Bits,
		I2CBus	bus = I2CBus::PRIMARY,
		uint8_t	max_speed_mult = 1 )

Construct a new I2CButtonsInput object.

Parameters

address7Bits	I2C address in 7 bits format
bus	Bus where the chip is attached to
max_speed_mult	Bus speed multiplier in the range from 1 to 4

Member Data Documentation

device

void* I2CInput::device = nullptr

protected

Slave device in the I2C API (must be type-casted)

Definition at line 320 of file InputHardware.hpp.

---

The documentation for this class was generated from the following file:

• /github/workspace/src/include/InputHardware.hpp