include/linux/bsg.h

   1 #ifndef BSG_H
   2 #define BSG_H
   3
   4 #include <uapi/linux/bsg.h>
   5
   6
   7 #if defined(CONFIG_BLK_DEV_BSG)
   8 struct bsg_class_device {
   9         struct device *class_dev;
  10         struct device *parent;
  11         int minor;
  12         struct request_queue *queue;
  13         struct kref ref;
  14         void (*release)(struct device *);
  15 };
  16
  17 extern int bsg_register_queue(struct request_queue *q,
  18                               struct device *parent, const char *name,
  19                               void (*release)(struct device *));
  20 extern void bsg_unregister_queue(struct request_queue *);
  21 #else
  22 static inline int bsg_register_queue(struct request_queue *q,
  23                                      struct device *parent, const char *name,
  24                                      void (*release)(struct device *))
  25 {
  26         return 0;
  27 }
  28 static inline void bsg_unregister_queue(struct request_queue *q)
  29 {
  30 }
  31 #endif
  32
  33 #endif