47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/*
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* Copyright (c) 1992 The Regents of the University of California.
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* All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratories.
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*
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* %sccs.include.redist.c%
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*
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* %W% (Berkeley) %G%
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*
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* from: Header: scsi_ioctl.h,v 1.3 92/12/02 03:54:19 torek Exp (LBL)
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* $Id: scsi_ioctl.h,v 1.1 1993/10/27 17:48:39 deraadt Exp $
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*/
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/*
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* SCSI ioctls (`format' mode).
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*
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* Format mode allows a privileged process to issue direct SCSI commands
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* to a drive (it is intended primarily to allow on-line formatting).
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* SDIOCSFORMAT sets format mode (nonzero arg => on, zero arg => off).
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* When in format mode, only the process that issued the SDIOCSFORMAT
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* can read or write the drive.
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*
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* In format mode, the process is expected to
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* - do SDIOCSCSICOMMAND to supply cdb for next SCSI op
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* - do read or write as appropriate for cdb
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* - if I/O error, optionally do SDIOCSENSE to get completion
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* status and sense data from last SCSI operation.
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*/
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struct scsi_fmt_sense {
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u_int status; /* completion status of last op */
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u_char sense[28]; /* sense data (if any) from last op */
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};
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#define SDIOCSFORMAT _IOW('S', 1, int)
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#define SDIOCGFORMAT _IOR('S', 2, int)
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#define SDIOCSCSICOMMAND _IOW('S', 3, struct scsi_cdb)
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#define SDIOCSENSE _IOR('S', 4, struct scsi_fmt_sense)
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