SES(4)                  NetBSD Kernel Interfaces Manual                 SES(4)

NAME
     ses -- SCSI Environmental Services Driver

SYNOPSIS
     ses* at scsibus? target? lun?

DESCRIPTION
     The ses driver provides support for all SCSI devices of the environmental
     services class that are attached to the system through a supported SCSI
     Host Adapter, as well as emulated support for SAF-TE (SCSI Accessible
     Fault Tolerant Enclosures).  The environmental services class generally
     are enclosure devices that provide environmental information such as num-
     ber of power supplies (and state), temperature, device slots, and so on.

     A SCSI Host adapter must also be separately configured into the system
     before a SCSI Environmental Services device can be configured.

IOCTLS
     The following ioctl(2) calls apply to SES devices.  They are defined in
     the header file <scsipi/ses.h> (q.v.).

     SESIOC_GETNOBJ     Used to find out how many SES objects are driven by
                        this particular device instance.

     SESIOC_GETOBJMAP   Read, from the kernel, an array of SES objects which
                        contains the object identifier, which sub-enclosure it
                        is in, and the SES type of the object.

     SESIOC_GETENCSTAT  Get the overall enclosure status.

     SESIOC_SETENCSTAT  Set the overall enclosure status.

     SESIOC_GETOBJSTAT  Get the status of a particular object.

     SESIOC_SETOBJSTAT  Set the status of a particular object.

     SESIOC_GETTEXT     Get the associated help text for an object (not yet
                        implemented).  SES devices often have descriptive text
                        for an object which can tell you things like location
                        (e.g, "left power supply").

     SESIOC_INIT        Initialize the enclosure.

FILES
     /dev/sesN      The Nth ses device.

DIAGNOSTICS
     When the kernel is configured with DEBUG enabled, the first open to an
     SES device will spit out overall enclosure parameters to the console.

SEE ALSO
     getencstat(8), sesd(8), setencstat(8), setobjstat(8)

HISTORY
     The ses driver was written for the SCSI subsystem by Matthew Jacob. This
     is the functional equivalent of a similar driver available in Solaris,
     Release 7.

NetBSD 5.1                       May 24, 2007                       NetBSD 5.1

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