27 lines
744 B
C
27 lines
744 B
C
#ifndef __USER_GPIO_DRIVER_H
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#define __USER_GPIO_DRIVER_H
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#include <stdint.h>
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#include <gpiod.h>
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typedef struct {
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struct gpiod_chip *chip;
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struct gpiod_line *line;
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} user_gpio_t;
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typedef enum {
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USER_GPIO_INTR_RISING = 0x01,
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USER_GPIO_INTR_FALLING = 0x02,
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} user_gpio_intr_t;
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int user_gpio_init(user_gpio_t *gpio, char *chip, uint32_t offset,
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uint8_t output_enabled);
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int user_gpio_set(user_gpio_t *gpio, uint8_t value);
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int user_gpio_get(user_gpio_t *gpio, uint8_t *value);
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int user_gpio_intr_poll(user_gpio_t *gpio, uint32_t timeout_ms,
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user_gpio_intr_t *event);
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int user_gpio_setup_intr(user_gpio_t *gpio, user_gpio_intr_t type);
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int user_gpio_deinit(user_gpio_t *gpio);
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#endif |