gpio_operations Struct Reference

GPIO operations. More...

#include <gpio.h>

Data Fields
int(*	in )(struct gpios *gpios, struct gpio *gpio)
	Get current GPIO input value.
void(*	out )(struct gpios *gpios, struct gpio *gpio, int active)
	Set current GPIO output value.
int(*	config )(struct gpios *gpios, struct gpio *gpio, unsigned int config)
	Configure GPIO pin.

Detailed Description

GPIO operations.

Definition at line 57 of file gpio.h.

Field Documentation

in

int(* gpio_operations::in) (struct gpios *gpios, struct gpio *gpio)

Get current GPIO input value.

Parameters

gpios	GPIO controller
gpio	GPIO pin

Return values

active

Pin is in the active state

Definition at line 65 of file gpio.h.

Referenced by gpio_in().

out

void(* gpio_operations::out) (struct gpios *gpios, struct gpio *gpio, int active)

Set current GPIO output value.

Parameters

gpios	GPIO controller
gpio	GPIO pin
active	Set pin to active state

Definition at line 73 of file gpio.h.

Referenced by gpio_out().

config

int(* gpio_operations::config) (struct gpios *gpios, struct gpio *gpio, unsigned int config)

Configure GPIO pin.

Parameters

gpios	GPIO controller
gpio	GPIO pin
config	Configuration

Return values

rc	Return status code

Definition at line 82 of file gpio.h.

Referenced by gpio_config().

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

• include/ipxe/gpio.h