1 /* dkio.h 6.1 83/07/29 */ 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 */ 12