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 sup-
     port a set of ioctl(2) requests for diagnostics and bad sec-
     tor 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  struc-
                ture  (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  struc-
                ture  (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)