proc.h

/* Prototypes for functions called upon a read to a /proc file
   These functions all fill the buffer parameter with a string, 
   which is returned to the process calling read() */
#define NR_DEVS            6        /* number of minor devices */

_PROTOTYPE( void get_uptime,    (char *buffer, int bufSize)       );
_PROTOTYPE( void get_Hz,    (char *buffer, int bufSize)       );
_PROTOTYPE( void get_bootenv,   (char *buffer, int bufSize)      );
_PROTOTYPE( void get_cpuinfo,   (char *buffer, int bufSize)      );
_PROTOTYPE( void get_processes, (char *buffer, int bufSize)         );
_PROTOTYPE( void get_bootimage, (char *buffer, int bufSize)         );

/* call vector of functions to retrieve file contents, indexed by minor no. */
void (*pr_vec[NR_DEVS]) (char *buffer, int bufSize) = { 
/* function     minor  file         */
   get_Hz,      /* 0 = /proc/hz    */
   get_uptime,  /* 1 = /proc/uptime  */
   get_bootenv, /* 2 = /proc/bootenv    */
   get_cpuinfo, /* 3 = /proc/cpuinfo    */
   get_processes,/*4 = /proc/processes */
   get_bootimage,/*5 = /proc/bootimage */
};