test.c/inc/driver.h

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2021-06-09 05:41:08 +00:00
#ifndef __DRIVER_H__
#define __DRIVER_H__
struct driver;
typedef int (*fp_open_t)(const struct driver *);
typedef int (*fp_close_t)(const struct driver *);
typedef int (*fp_read_t)(const struct driver *, char *, unsigned int);
typedef int (*fp_write_t)(const struct driver *, const char *, unsigned int);
struct driver_fp {
fp_open_t open;
fp_close_t close;
fp_read_t read;
fp_write_t write;
};
struct driver {
const struct driver_fp *fp;
const void *dev;
};
int drv_open(const struct driver *drv);
int drv_close(const struct driver *drv);
int drv_read(const struct driver *drv, char *buffer, unsigned int length);
int drv_write(const struct driver *drv, const char *buffer, unsigned int length);
#endif