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 5.11							    13 Aug 2002 							  hdio(7I)