drivers/scsi/sd.h

/* */
   1 /*
   2  *      sd.h Copyright (C) 1992 Drew Eckhardt 
   3  *      SCSI disk driver header file by
   4  *              Drew Eckhardt 
   5  *
   6  *      <drew@colorado.edu>
   7  *
   8  *       Modified by Eric Youngdale eric@tantalus.nrl.navy.mil to
   9  *       add scatter-gather, multiple outstanding request, and other
  10  *       enhancements.
  11  */
  12 #ifndef _SD_H
  13         #define _SD_H
  14 /*
  15         $Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/sd.h,v 1.1 1992/07/24 06:27:38 root Exp root $
  16 */
  17 
  18 #ifndef _SCSI_H
  19 #include "scsi.h"
  20 #endif
  21 
  22 #ifndef _GENDISK_H
  23 #include <linux/genhd.h>
  24 #endif
  25 
  26 /*
  27         This is an arbitrary constant, and may be changed to whatever
  28         suits your purposes.  Note that smaller will get you a few bytes
  29         more in kernel space if that is your thing.
  30 */
  31 
  32 extern struct hd_struct * sd;
  33 
  34 typedef struct {
  35                 unsigned capacity;              /* size in blocks */
  36                 unsigned sector_size;           /* size in bytes */
  37                 Scsi_Device  *device;           
  38                 unsigned char sector_bit_size;  /* sector_size = 2 to the  bit size power */
  39                 unsigned char sector_bit_shift; /* power of 2 sectors per FS block */
  40                 unsigned ten:1;                 /* support ten byte read / write */
  41                 unsigned remap:1;               /* support remapping  */
  42                 } Scsi_Disk;
  43         
  44 extern Scsi_Disk * rscsi_disks;
  45 
  46 #endif
/* */
root/drivers/scsi/sd.h

INCLUDED FROM
