servers/vfs/dmap.h

   1 #ifndef __VFS_DMAP_H__
   2 #define __VFS_DMAP_H__
   3
   4 #include "threads.h"
   5
   6 /*===========================================================================*
   7  *                       Device <-> Driver Table                             *
   8  *===========================================================================*/
   9
  10 /* Device table.  This table is indexed by major device number.  It provides
  11  * the link between major device numbers and the routines that process them.
  12  * The table can be updated dynamically. The field 'dmap_flags' describe an
  13  * entry's current status and determines what control options are possible.
  14  */
  15
  16 extern struct dmap {
  17   int(*dmap_opcl) (int, dev_t, int, int);
  18   int(*dmap_io) (int, message *);
  19   endpoint_t dmap_driver;
  20   char dmap_label[LABEL_MAX];
  21   int dmap_flags;
  22   int dmap_style;
  23   struct filp *dmap_sel_filp;
  24   endpoint_t dmap_servicing;
  25   mutex_t dmap_lock;
  26   mutex_t *dmap_lock_ref;
  27   int dmap_recovering;
  28 } dmap[];
  29
  30 #endif