/* * sd.h Copyright (C) 1992 Drew Eckhardt * SCSI disk driver header file by * Drew Eckhardt * * * * Modified by Eric Youngdale eric@tantalus.nrl.navy.mil to * add scatter-gather, multiple outstanding request, and other * enhancements. */ #ifndef _SD_H #define _SD_H /* $Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/sd.h,v 1.1 1992/07/24 06:27:38 root Exp root $ */ #ifndef _SCSI_H #include "scsi.h" #endif #ifndef _GENDISK_H #include #endif /* This is an arbitrary constant, and may be changed to whatever suits your purposes. Note that smaller will get you a few bytes more in kernel space if that is your thing. */ extern struct hd_struct * sd; typedef struct { unsigned capacity; /* size in blocks */ unsigned sector_size; /* size in bytes */ Scsi_Device *device; unsigned char sector_bit_size; /* sector_size = 2 to the bit size power */ unsigned char sector_bit_shift; /* power of 2 sectors per FS block */ unsigned ten:1; /* support ten byte read / write */ unsigned remap:1; /* support remapping */ } Scsi_Disk; extern Scsi_Disk * rscsi_disks; #endif