roo_control::Pcf8574::OutputPort Class Reference

Output-only port. More...

#include <pcf8574.h>

Inheritance diagram for roo_control::Pcf8574::OutputPort:

Collaboration diagram for roo_control::Pcf8574::OutputPort:

Public Member Functions
	OutputPort (Pcf8574 &extender, uint8_t port)
bool	setState (BinaryLogicalState state) override
	Updates the state of the switch. Returns true on success.
bool	getState (BinaryLogicalState &result) const override
Public Member Functions inherited from roo_control::Switch< BinaryLogicalState >
virtual	~Switch ()=default
Public Member Functions inherited from roo_control::Selector< State >
virtual	~Selector ()=default
virtual bool	getState (State &result) const =0
	Retrieves the current state, or returns false when it cannot be read.

Detailed Description

Output-only port.

Reading the state (getState()) returns the last set value without communicating with the extender. Prefer this to Port for output-only ports.

Definition at line 43 of file pcf8574.h.

Constructor & Destructor Documentation

OutputPort()

roo_control::Pcf8574::OutputPort::OutputPort	(	Pcf8574 &	extender,
		uint8_t	port
	)

Definition at line 31 of file pcf8574.cpp.

Member Function Documentation

getState()

bool roo_control::Pcf8574::OutputPort::getState ( BinaryLogicalState &  result ) const

override

Definition at line 25 of file pcf8574.cpp.

References roo_control::BINARY_STATE_HIGH, and roo_control::BINARY_STATE_LOW.

setState()

bool roo_control::Pcf8574::OutputPort::setState ( BinaryLogicalState  state )

overridevirtual

Updates the state of the switch. Returns true on success.

Implements roo_control::Switch< BinaryLogicalState >.

Definition at line 21 of file pcf8574.cpp.

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

• temp_repos/roo_control/src/roo_control/port_extender/pcf8574.h
• temp_repos/roo_control/src/roo_control/port_extender/pcf8574.cpp