Programming

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>       /* mmap() */
#include <fcntl.h>        /* open(), close(), etc. */
#include <unistd.h>       /* exit() */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <linux/cdev.h>

#include "iptimer_ppc_linux26_fnc.h"
#include "iptimer_ppc_linux26_io.h"

int main(int argc, char ** args)
{
      int fd, status = 0;
      unsigned long quantum, qset;
      
      if( (status = open("/dev/iptimer0", O_RDWR)) < 0 ){
            perror("open");
            printf("Error opening /dev/iptimer device file, errno = %d\n", errno);
            exit (1);
      }
      
      if((status = ioctl(fd, IPTIMER_IOCTL_GET_QUANTUM, quantum)) < 0 ){
            perror("ioctl");
            printf("Error getting quantum, errno = %d\n", errno);
            exit (1);
      }
      printf("*** quantum = %d", quantum);

      if((status = ioctl(fd, IPTIMER_IOCTL_GET_QSET, qset)) < 0 ){
            perror("ioctl");
            printf("Error getting qset, errno = %d\n", errno);
            exit (1);
      }
      printf("*** qset = %d", qset);      
      
      return 0;
}

 ~/src/rwtest # make
ppc_60x-gcc -c -o main.o -g main.c
In file included from main.c:13:
iptimer_ppc_linux26_fnc.h:32: error: field `iptimer_cdev' has incomplete type
iptimer_ppc_linux26_fnc.h:33: error: field `iptimer_sem' has incomplete type
make: *** [main.o] Error 1

struct iptimer_dev{
      iptimer_qset_t   *iptimer_data;      /* Pointer to first quantum set */
      int                    quantum;            /* The current quantum size */
      int                    qset;               /* The current array size */
      unsigned long int  size;             /* Amount of data stored */
      struct cdev           ptimer_cdev;  /* Char device structure */
      struct semaphore  iptimer_sem;       /* Mutual exclusion semaphore */
      int                       dev_minor;                        
};

07-08-09 12:41 :( # uname -a
Linux 2.4.21-47.0.1.ELsmp #1 SMP Thu Oct 19 10:46:05 CDT 2006 i686 i686 i386 GNU/Linux
07-08-09 12:52 :( # $CC --version
ppc_60x-gcc (GCC) 3.4.4

struct a { long x; };

 #ifndef _LINUX_CDEV_H
 #define _LINUX_CDEV_H
 #ifdef __KERNEL__
 
 struct cdev {
         struct kobject kobj;
         struct module *owner;
         struct file_operations *ops;
         struct list_head list;
         dev_t dev;
         unsigned int count;
 };
...
#endif
#endif

 #ifdef __KERNEL__
 ...
 #include <asm/atomic.h>
 #include <asm/system.h>
 #include <linux/wait.h>
 #include <linux/rwsem.h>
 
 struct semaphore {
         atomic_t count;
         wait_queue_head_t wait;
 };
...
#endif