GPIO functions

This module provides functions to set and get values of a GPIO. More...

Functions
enum mygpio_gpio_value	mygpio_gpioget (struct t_mygpio_connection *connection, unsigned gpio)
bool	mygpio_gpioset (struct t_mygpio_connection *connection, unsigned gpio, enum mygpio_gpio_value value)
bool	mygpio_gpiotoggle (struct t_mygpio_connection *connection, unsigned gpio)
bool	mygpio_gpioblink (struct t_mygpio_connection *connection, unsigned gpio, int timeout_ms, int interval_ms)

Detailed Description

This module provides functions to set and get values of a GPIO.

Function Documentation

mygpio_gpioblink()

bool mygpio_gpioblink	(	struct t_mygpio_connection *	connection,
		unsigned	gpio,
		int	timeout_ms,
		int	interval_ms )

Toggles the value of a configured output GPIO at given timeout and interval.

Parameters

connection	Pointer to the connection struct returned by mygpio_connection_new.
gpio	GPIO number
timeout_ms	timeout in milliseconds
interval_ms	interval in milliseconds, set it 0 to blink only once.

Returns

true on success, else false.

mygpio_gpioget()

enum mygpio_gpio_value mygpio_gpioget	(	struct t_mygpio_connection *	connection,
		unsigned	gpio )

Returns the current value of a configured input or output GPIO.

Parameters

connection	Pointer to the connection struct returned by mygpio_connection_new.
gpio	GPIO number

Returns

Value of the GPIO or MYGPIO_GPIO_VALUE_UNKNOWN on error.

mygpio_gpioset()

bool mygpio_gpioset	(	struct t_mygpio_connection *	connection,
		unsigned	gpio,
		enum mygpio_gpio_value	value )

Sets the value of a configured output GPIO.

Parameters

connection	Pointer to the connection struct returned by mygpio_connection_new.
gpio	GPIO number
value	Value to set: MYGPIO_GPIO_VALUE_INACTIVE or MYGPIO_GPIO_VALUE_ACTIVE

Returns

true on success, else false.

mygpio_gpiotoggle()

bool mygpio_gpiotoggle	(	struct t_mygpio_connection *	connection,
		unsigned	gpio )

Toggles the value of a configured output GPIO.

Parameters

connection	Pointer to the connection struct returned by mygpio_connection_new.
gpio	GPIO number

Returns

true on success, else false.