1 /* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This software was developed by the Computer Systems Engineering group 6 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7 * contributed to Berkeley. 8 * 9 * All advertising materials mentioning features or use of this software 10 * must display the following acknowledgement: 11 * This product includes software developed by the University of 12 * California, Lawrence Berkeley Laboratories. 13 * 14 * %sccs.include.redist.c% 15 * 16 * @(#)scsi_ioctl.h 8.1 (Berkeley) 06/10/93 17 * 18 * from: $Header: scsi_ioctl.h,v 1.3 92/12/02 03:54:19 torek Exp $ (LBL) 19 */ 20 21 /* 22 * SCSI ioctls (`format' mode). 23 * 24 * Format mode allows a privileged process to issue direct SCSI commands 25 * to a drive (it is intended primarily to allow on-line formatting). 26 * SDIOCSFORMAT sets format mode (nonzero arg => on, zero arg => off). 27 * When in format mode, only the process that issued the SDIOCSFORMAT 28 * can read or write the drive. 29 * 30 * In format mode, the process is expected to 31 * - do SDIOCSCSICOMMAND to supply cdb for next SCSI op 32 * - do read or write as appropriate for cdb 33 * - if I/O error, optionally do SDIOCSENSE to get completion 34 * status and sense data from last SCSI operation. 35 */ 36 37 struct scsi_fmt_sense { 38 u_int status; /* completion status of last op */ 39 u_char sense[28]; /* sense data (if any) from last op */ 40 }; 41 42 #define SDIOCSFORMAT _IOW('S', 1, int) 43 #define SDIOCGFORMAT _IOR('S', 2, int) 44 #define SDIOCSCSICOMMAND _IOW('S', 3, struct scsi_cdb) 45 #define SDIOCSENSE _IOR('S', 4, struct scsi_fmt_sense) 46