include/spl-device.h

   1 #ifndef _SPL_DEVICE_H
   2 #define _SPL_DEVICE_H
   3
   4 #include <linux/device.h>
   5
   6 /*
   7  * Preferred API from 2.6.18 to 2.6.26+
   8  */
   9 #ifdef HAVE_DEVICE_CREATE
  10
  11 typedef struct class                    spl_class;
  12 typedef struct device                   spl_device;
  13
  14 #define spl_class_create(mod, name)     class_create(mod, name)
  15 #define spl_class_destroy(cls)          class_destroy(cls)
  16 #define spl_device_create(cls, parent, devt, device, fmt, args...)            \
  17         device_create(cls, parent, devt, fmt, ## args)
  18 #define spl_device_destroy(cls, cls_dev, devt)                                \
  19         device_destroy(cls, devt)
  20
  21 /*
  22  * Preferred API from 2.6.13 to 2.6.17
  23  * Depricated in 2.6.18
  24  * Removed in 2.6.26
  25  */
  26 #else
  27 #ifdef HAVE_CLASS_DEVICE_CREATE
  28
  29 typedef struct class                    spl_class;
  30 typedef struct class_device             spl_device;
  31
  32 #define spl_class_create(mod, name)     class_create(mod, name)
  33 #define spl_class_destroy(cls)          class_destroy(cls)
  34 #define spl_device_create(cls, parent, devt, device, fmt, args...)            \
  35         class_device_create(cls, devt, device, fmt, ## args)
  36 #define spl_device_destroy(cls, cls_dev, devt)                                \
  37         class_device_unregister(cls_dev)
  38
  39 /*
  40  * Prefered API from 2.6.0 to 2.6.12
  41  * Depricated in 2.6.13
  42  * Removed in 2.6.13
  43  */
  44 #else /* Legacy API */
  45
  46 typedef struct class_simple             spl_class;
  47 typedef struct class_device             spl_class_device;
  48
  49 #define spl_class_create(mod, name)     class_simple_create(mod, name)
  50 #define spl_class_destroy(cls)          class_simple_destroy(cls)
  51 #define spl_device_create(cls, parent, devt, device, fmt, args...)            \
  52         class_simple_device_add(cls, devt, device, fmt, ## args)
  53 #define spl_device_destroy(cls, cls_dev, devt)                                \
  54         class_simple_device_remove(devt)
  55
  56 #endif
  57 #endif
  58
  59 #endif /* _SPL_DEVICE_H */