#ifndef _LINUX_GENHD_H #define _LINUX_GENHD_H /* * genhd.h Copyright (C) 1992 Drew Eckhardt * Generic hard disk header file by * Drew Eckhardt * * */ #define EXTENDED_PARTITION 5 struct partition { unsigned char boot_ind; /* 0x80 - active */ unsigned char head; /* starting head */ unsigned char sector; /* starting sector */ unsigned char cyl; /* starting cylinder */ unsigned char sys_ind; /* What partition type */ unsigned char end_head; /* end head */ unsigned char end_sector; /* end sector */ unsigned char end_cyl; /* end cylinder */ unsigned int start_sect; /* starting sector counting from 0 */ unsigned int nr_sects; /* nr of sectors in partition */ }; struct hd_struct { long start_sect; long nr_sects; }; struct gendisk { int major; /* major number of driver */ char *major_name; /* name of major driver */ int minor_shift; /* number of times minor is shifted to get real minor */ int max_p; /* maximum partitions per device */ int max_nr; /* maximum number of real devices */ void (*init)(void); /* Initialization called before we do our thing */ struct hd_struct *part; /* partition table */ int *sizes; /* size of device in blocks */ int nr_real; /* number of real devices */ void *real_devices; /* internal use */ struct gendisk *next; }; extern int NR_GENDISKS; /* total */ extern struct gendisk *gendisk_head; /* linked list of disks */ #endif