NAME

sesio — enclosure services device driver interface

SYNOPSIS

#include <sys/scsi/targets/sesio.h>

DESCRIPTION

The ses device driver provides the following ioctls as a means to access SCSI enclosure services devices.

IOCTLS

The ses driver supports the following ioctls:

SES_IOCTL_GETSTATE: This ioctl obtains enclosure state in the ses_ioctl structure.
SES_IOCTL_SETSTATE: This ioctl is used to set parameters on the enclosure services device. The ses_ioctl structure is used to pass information into the driver.

EXAMPLES

Example 1: Using the SES_IOCTL_GETSTATE ioctl

The following example uses the SES_IOCTL_GETSTATE ioctl to recover 20 bytes of page 4 from a previously opened device.

char   abuf[30];
struct ses_ioctl *sesp;
int    status;

sesp = (ses_ioctl *)abuf;
sesp->size = 20;
sesp->page_code = 4;
status = ioctl(fd, SES_IOCTL_GETSTATE, abuf);

ERRORS

EIO: The ses driver was unable to obtain data from the enclosure services device or the data transfer could not be completed.
ENOTTY: The ses driver does not support the requested ioctl function.
ENXIO: The enclosure services device does not exist.
EFAULT: The user specified a bad data length.

STRUCTURES

The ses_ioctl structure has the following fields:

uint32_t page_size;      /* Size of buffer that follows */
uint8_t  page_code:      /* Page to be read/written */
uint8_t  reserved[3];    /* Reserved; Set to 0 */

ARCHITECTURE

SPARC X86