ibuddy.h

#ifndef IBUDDY_H
#define IBUDDY_H

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/sysfs.h>
#include <linux/proc_fs.h>

#ifdef CONFIG_USB_DEBUG
#define DEBUG_IBUDDY 5
#endif

#ifndef DEBUG_IBUDDY 
#define DEBUG_IBUDDY 1
#endif

#define DRIVER_AUTHOR "Jyke Tapani Jokinen, tietomaakari@gmail.com"
#define DRIVER_NAME "ibuddy"
#define DRIVER_DESC "iBuddy USB driver"
#define IBUDDY_INITIAL_VALUE 0xF5


/* --- kernel printing routines --- */
/* DEBUG_IBUDDY == 0,  no debug at all */
/* DEBUG_IBUDDY == 1, debug controlled by module parameter 'debug' */
/* DEBUG_IBUDDY > 1, always debug prints */

#define KERNPRINT(fmt,arg...) 
#if DEBUG_IBUDDY == 0
#define PRINT(fmt,arg...) do {} while(0)
#elif DEBUG_IBUDDY == 1
extern bool ibuddy_debug;
#define PRINT(fmt,arg...) do { \
  if( unlikely( ibuddy_debug ) ) { \
    printk(KERN_INFO DRIVER_NAME ": " fmt,##arg); \
  } } while(0)
#else /* DEBUG_IBUDDY > 1 */
#define PRINT(fmt,arg...)  do { \
  printk(KERN_INFO DRIVER_NAME ": " fmt,##arg) \
} while(0)
#endif
#define ERROR(fmt,arg...) do { \
  printk(KERN_ALERT DRIVER_NAME ":%s: Error! - " fmt, __func__, ##arg); \
  } while(0) 

/* --- per i-buddy information ---- */
struct ibuddy_dev {
  struct usb_device* udev;      // usb device for this ibuddy
  unsigned char      raw;       // data sent to ibuddy
  unsigned short     type;      // type from probe
  unsigned char*     procname;  // /proc/driver/ibuddy/X name
  unsigned char      num;       // enumeration of this device (0-9)
  struct kobject*    kobj;
};

/* initial setup of usb communications (called from module init) */
void ibuddy_usb_setup( unsigned int timeout );
/* send command to ibuddy */
void ibuddy_cmd( struct ibuddy_dev* dev, uint8_t cmd );

/* create the attributes for one ibuddy (called from probe) */
void ibuddy_attr_init( struct usb_interface* interface );
/* remove attributes (called from disconned) */
void ibuddy_attr_remove( struct usb_interface* interface );

#endif /* IBUDDY_H */