crt.h

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#pragma once
#include <sys/stat.h>
#include <stddef.h>
 
#ifdef  __cplusplus
extern  "C" {
#endif
 
typedef struct
{
  void*   f_priv;     
  void*   d_priv;     
  uint8_t used;       
  int     mode;       
} File;
 
typedef struct
{
  int     (*open)(  File* filep);             
  int     (*close)( File* filep);             
  ssize_t (*read)(  File* filep, char *buffer, size_t buflen); 
  ssize_t (*write)( File* filep, const char *buffer, size_t buflen); 
  off_t   (*seek)(  File* filep, int ptr,int dir); 
  int     (*ioctl)( File* filep, unsigned int cmd, void* arg); 
} file_operations;
 
#define N_MAX_PATH  (32)
typedef struct {
  char _path[ N_MAX_PATH ];                   
  const file_operations* _fops;               
  mode_t _mode;                               
  void* _priv;                                
} FsDriver ;
 
extern  int fs_register_driver(
  const char* path,
  const file_operations* fops,
  mode_t mode,
  void* priv
);
 
extern  int _ioctl(int fd, unsigned int cmd, void* arg);
 
#ifdef  __cplusplus
}
#endif