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@aib.com 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 extern struct hd_struct * sd;
  27 
  28 typedef struct scsi_disk {
  29     unsigned capacity;              /* size in blocks */
  30     unsigned sector_size;           /* size in bytes */
  31     Scsi_Device  *device;           
  32     unsigned char ready;            /* flag ready for FLOPTICAL */
  33     unsigned char write_prot;       /* flag write_protect for rmvable dev */
  34     unsigned char sector_bit_size;  /* sector_size = 2 to the  bit size power */
  35     unsigned char sector_bit_shift; /* power of 2 sectors per FS block */
  36     unsigned ten:1;                 /* support ten byte read / write */
  37     unsigned remap:1;               /* support remapping  */
  38     unsigned has_part_table:1;      /* has partition table */
  39 } Scsi_Disk;
  40 
  41 extern Scsi_Disk * rscsi_disks;
  42 
  43 extern int revalidate_scsidisk(kdev_t dev, int maxusage);
  44 
  45 #endif
  46 
  47 /*
  48  * Overrides for Emacs so that we follow Linus's tabbing style.
  49  * Emacs will notice this stuff at the end of the file and automatically
  50  * adjust the settings for this buffer only.  This must remain at the end
  51  * of the file.
  52  * ---------------------------------------------------------------------------
  53  * Local variables:
  54  * c-indent-level: 4
  55  * c-brace-imaginary-offset: 0
  56  * c-brace-offset: -4
  57  * c-argdecl-indent: 4
  58  * c-label-offset: -4
  59  * c-continued-statement-offset: 4
  60  * c-continued-brace-offset: 0
  61  * indent-tabs-mode: nil
  62  * tab-width: 8
  63  * End:
  64  */
  65
/* */
root/drivers/scsi/sd.h

INCLUDED FROM
