NAME

hdio − SMD and IPI disk control operations

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_charhdkt_drtype;/∗ drive type (ctlr specific) ∗/
u_charhdkt_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_shorthdkd_errcmd;/∗ most recent command in error ∗/
daddr_thdkd_errsect;/∗ most recent sector in error ∗/
u_charhdkd_errno;/∗ most recent error number ∗/
u_charhdkd_severe;/∗ severity of most recent error ∗/
};

SEE ALSO

ioctl(2), dkio(7), ipi(7), xd(7), xy(7)

Sun Microsystems  —  Last change: 19 Feb 1993