demo/include/gpio.h

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2020-02-13 11:00:05 +00:00
#ifndef __GPIO_H__
#define __GPIO_H__
#include <stdarg.h>
#include "driver.h"
#define IOCTL_CMD_SET_DIRECTION 0
int gpio_open(const struct driver *drv);
int gpio_close(const struct driver *drv);
int gpio_read(const struct driver *drv, char *buffer, unsigned int len);
int gpio_write(const struct driver *drv, const char *buffer, unsigned int len);
int gpio_ioctl(const struct driver *drv, unsigned int cmd, unsigned int argc, va_list args);
struct gpio {
int pin;
};
static const struct driver_fp gpio_fp = {
.open = gpio_open,
.close = gpio_close,
.read = gpio_read,
.write = gpio_write,
.ioctl = gpio_ioctl
};
#endif