hdio(7I)							  Ioctl Requests							  hdio(7I)

NAME

       hdio - SMD and IPI disk control operations

SYNOPSIS

       #include <sys/hdio.h>

DESCRIPTION

       Note -  The SMC and IPI drivers have been discontinued. dkio(7I) is now the preferred method for retrieving disk information.

       The  SMD  and  IPI  disk  drivers supplied with this release support a set of ioctl(2) requests for diagnostics and bad sector information.
       Basic to these  ioctl() requests are the definitions in <sys/hdio.h>.

IOCTLS

       HDKIOCGTYPE     The argument is a pointer to a hdk_type structure (described below).  This ioctl() gets specific information from the  hard
		       disk.

       HDKIOCSTYPE     The argument is a pointer to a hdk_type structure (described below).  This ioctl() sets specific information about the hard
		       disk.

       /*
	* Used for drive info
	*/
       struct hdk_type {
	ushort_t  hdkt_hsect;	 /* hard sector count (read only) */
	ushort_t  hdkt_promrev;  /* prom revision (read only) */
	uchar_t   hdkt_drtype;	 /* drive type (ctlr specific) */
	uchar_t   hdkt_drstat;	 /* drive status (ctlr specific, ro) */
       };

       HDKIOCGBAD      The argument is a pointer to a hdk_badmap structure (described below).  This ioctl() is used to get the bad sector map from
		       the disk.

       HDKIOCSBAD      The  argument  is a pointer to a hdk_badmap structure (described below).  This ioctl() is used to set the bad sector map on
		       the disk.

       /*
	* Used for bad sector map
	*/
       struct hdk_badmap {
	    caddr_t   hdkb_bufaddr;  /* address of user's map buffer */
       };

       HDKIOCGDIAG     The argument is a pointer to a hdk_diag structure (described below).  This ioctl() gets the most recent command that failed
		       along with the sector and error number from the hard disk.

       /*
	* Used for disk diagnostics
	*/
       struct hdk_diag {
	ushort_t hdkd_errcmd;  /* most recent command in error */
	daddr_t  hdkd_errsect; /* most recent sector in error */
	uchar_t  hdkd_errno;   /* most recent error number */
	uchar_t  hdkd_severe;  /* severity of most recent error */
       };

SEE ALSO

       ioctl(2), dkio(7I)

SunOS 5.10							    13 Aug 2002 							  hdio(7I)