[unix-history] / usr / src / sys / i386 / include / dkio.h

/*	dkio.h	1.1	86/01/05	*/
/*
 * Structures and definitions for disk io control commands
 *
 * THIS WHOLE AREA NEEDS MORE THOUGHT.  FOR NOW JUST IMPLEMENT
 * ENOUGH TO READ AND WRITE HEADERS ON MASSBUS DISKS.  EVENTUALLY
 * SHOULD BE ABLE TO DETERMINE DRIVE TYPE AND DO OTHER GOOD STUFF.
 */

/* disk io control commands */
#define DKIOCHDR	_IO(d, 1)	/* next I/O will read/write header */
Commit	Line	Data
ee734010 BJ	1	/* dkio.h 1.1 86/01/05 */
	2	/*
	3	* Structures and definitions for disk io control commands
	4	*
	5	* THIS WHOLE AREA NEEDS MORE THOUGHT. FOR NOW JUST IMPLEMENT
	6	* ENOUGH TO READ AND WRITE HEADERS ON MASSBUS DISKS. EVENTUALLY
	7	* SHOULD BE ABLE TO DETERMINE DRIVE TYPE AND DO OTHER GOOD STUFF.
	8	*/
	9
	10	/* disk io control commands */
	11	#define DKIOCHDR _IO(d, 1) /* next I/O will read/write header */