/*
* 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 (('d'<<8)|1) /* next I/O will read/write header */