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.\" Copyright (c) 2000 .\" Matthew Jacob <mjacob@FreeBSD.org>. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD: release/9.1.0/share/man/man4/ses.4 235578 2012-05-18 00:55:47Z gjb $ .\" .Dd January 29, 2000 .Dt SES 4 .Os .Sh NAME .Nm ses .Nd SCSI Environmental Services driver .Sh SYNOPSIS .Cd device ses .Sh DESCRIPTION The .Nm driver provides support for all .Tn SCSI devices of the environmental services class that are attached to the system through a supported .Tn 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 number of power supplies (and state), temperature, device slots, and so on. .Pp A .Tn SCSI Host adapter must also be separately configured into the system before a .Tn SCSI Environmental Services device can be configured. .Sh KERNEL CONFIGURATION It is only necessary to explicitly configure one .Nm device; data structures are dynamically allocated as devices are found on the .Tn SCSI bus. .Pp A separate option, .Va SES_ENABLE_PASSTHROUGH , may be specified to allow the .Nm driver to perform functions on devices of other classes that claim to also support .Nm functionality. .Sh IOCTLS The following .Xr ioctl 2 calls apply to .Nm devices. They are defined in the header file .In cam/scsi/scsi_ses.h (\fIq.v.\fR). .Bl -tag -width SESIOC_GETENCSTAT .It Dv SESIOC_GETNOBJ Used to find out how many .Nm objects are driven by this particular device instance. .It Dv SESIOC_GETOBJMAP Read, from the kernel, an array of SES objects which contains the object identifier, which subenclosure it is in, and the .Nm type of the object. .It Dv SESIOC_GETENCSTAT Get the overall enclosure status. .It Dv SESIOC_SETENCSTAT Set the overall enclosure status. .It Dv SESIOC_GETOBJSTAT Get the status of a particular object. .It Dv SESIOC_SETOBJSTAT Set the status of a particular object. .It Dv SESIOC_GETTEXT Get the associated help text for an object (not yet implemented). .Nm devices often have descriptive text for an object which can tell you things like location (e.g., "left power supply"). .It Dv SESIOC_INIT Initialize the enclosure. .El .Sh EXAMPLE USAGE The files contained in .In usr/share/examples/ses show simple mechanisms for how to use these interfaces, as well as a very stupid simple monitoring daemon. .Sh FILES .Bl -tag -width /dev/rsdXXXXX -compact .It Pa /dev/ses Ns Ar N The .Em Nth .Nm SES device. .El .Sh DIAGNOSTICS When the kernel is configured with .Tn DEBUG enabled, the first open to an SES device will spit out overall enclosure parameters to the console. .Sh HISTORY The .Nm driver was written for the .Tn CAM .Tn SCSI subsystem by Matthew Jacob. This is a functional equivalent of a similar driver available in Solaris, Release 7.