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Name

Synopsis

#include <sys/hdio.h>

Description

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 {
    u_short    hdkt_hsect;        /* hard sector count (read only) */
    u_short    hdkt_promrev;        /* prom revision (read only) */
    u_char    hdkt_drtype;        /* drive type (ctlr specific) */
    u_char    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 {
    u_short    hdkd_errcmd;    /* most recent command in error */
    daddr_t    hdkd_errsect;    /* most recent sector in error */
    u_char    hdkd_errno;    /* most recent error number */
    u_char    hdkd_severe;    /* severity of most recent error */
};

See Also

Table of Contents

• Name
• Synopsis
• Description
• IOCTLs
• See Also