Проект OpenNet: MAN sesio (7) Макропакеты и соглашения (FreeBSD и Linux)

Интерактивная система просмотра системных руководств (man-ов)

sesio (7)

>> sesio (7) ( Solaris man: Макропакеты и соглашения )

NAME

sesio - enclosure services device driver interface

SYNOPSIS

#include <sys/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.

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;               /* Size of buffer that follows */
uint8_t page_code:      /* Page to be read/written */
uint8_t reserved[3];    /* Reserved; Set to 0 */
unit8t  buffer[1];      /* Size arbitrary, user specifies */

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);