ledmon(8) [debian man page]

ledmon(8)					      Intel(R) Enclosure LED Monitor Service						 ledmon(8)

NAME

       ledmon - Intel(R) LED monitor service for storage enclosures.

SYNOPSIS

       ledmon [OPTIONS]

DESCRIPTION

       The ledmon application is a daemon process used to monitor a state of software RAID devices (md only) or a state of block devices. The
       state is visualizing on LEDs associated to each slot in an enclosure or a drive bay. There are two types of system: 2-LEDs system (Activity
       LED, Status LED) and 3-LEDs system (Activity LED, Locate LED, Fail LED). This application has the highest priority when accessing the LEDs.

       The ledmon application uses SGPIO and SES-2 protocol to control LEDs. The program implements IBPI patterns of SFF-8489 specification for
       SGPIO. Please note some enclosures do not stick close to SFF-8489 specification. It might happen that enclosure processor will accept IBPI
       pattern but it will blink LEDs not according to SFF-8489 specification or it has limited number of patterns supported.

       LED management (AHCI) and SAF-TE protocols are not supported.

       There's no method provided to specify which RAID volume should be monitored and which not. The ledmon application monitors all RAID devices
       and visualizes their state.

       The ledmon application has been verified to work with Intel(R) storage controllers (i.e. Intel(R) AHCI controller). The application might
       work with storage controllers of other vendors (especially SAS/SCSI controllers). However storage controllers of other vendors have not
       been tested.

       The ledmon application is part of Intel(R) Enclosure LED Utilities. Only single instance of the application is allowed.

OPTIONS

       -c or --config=path
	       Sets a path to local configuration file. If this option is specified the global configuration file and user configuration file has
	       no effect.

       -l or --log=path
	       Sets a path to local log file. If this option is specified the global log file /var/log/ledmon.log is not used.

       -t or --interval=seconds
	       Sets time interval between scans of sysfs. The value is given in seconds.  The minimum is 5 seconds the maximum is not specified.

       --quiet or --error or --warning or --info or --debug or --all
	       Verbose level - 'quiet' means no logging at all and 'all' means to log everything. The levels are given in order. If user specifies
	       more then one verbose option the last option comes into effect.

       -h or --help
	       Prints this text out and exits.

       -v or --version
	       Displays version of ledmon and information about the license and exits.

FILES

       /var/log/ledmon.log
	       Global log file, used by ledmon application. To force logging to user defined file use -l option switch.

       ~/.ledctl
	       User configuration file, shared between ledmon and all ledctl application instances.

       /etc/ledcfg.conf
	       Global configuration file, shared between ledmon and all ledctl application instances.

LICENSE

       Copyright (c) 2009 Intel Corporation.

       This program is distributed under the terms of the GNU General Public License as published by the Free Software Foundation. See the build-
       in help for details on the License and the lack of warranty.

BUGS

       The ledmon application does not recognize PFA state (Predicted Failure Analysis), hence the PFA pattern from SFF-8489 specification is not
       visualized.

SEE ALSO

       ledctl(8), ledctl.conf(5)

AUTHOR

       This manual page was written by Artur Wojcik <artur.wojcik@intel.com>. It may be used by others.

LEDMON Version 0.32						   February 2012							 ledmon(8)

Check Out this Related Man Page

XkbAddDeviceLedInfo(3)						   XKB FUNCTIONS					    XkbAddDeviceLedInfo(3)

NAME

       XkbAddDeviceLedInfo - Initialize an XkbDeviceLedInfoRec structure

SYNOPSIS

       XkbDeviceLedInfoPtr XkbAddDeviceLedInfo ( device_info, led_class, led_id )
	     XkbDeviceInfoPtr device_info;
	     unsigned int led_class;
	     unsigned int led_id;

ARGUMENTS

       - device_info
	      structure in which to add LED info

       - led_class
	      input extension class for LED device of interest

       - led_id
	      input extension ID for LED device of interest

DESCRIPTION

       XkbAddDeviceLedInfo first checks to see whether an entry matching led_class and led_id already exists in the device_info->leds array. If it
       finds a matching entry, it returns a pointer to that entry. Otherwise, it checks  to  be  sure  there  is  at  least  one  empty  entry	in
       device_info->leds  and  extends	it  if	there is not enough room. It then increments device_info->num_leds and fills in the next available
       entry in device_info->leds with led_class and led_id.

       If successful, XkbAddDeviceLedInfo returns a pointer to the XkbDeviceLedInfoRec structure that was initialized. If unable to allocate  suf-
       ficient	storage, or if device_info points to an invalid XkbDeviceInfoRec structure, or if led_class or led_id are inappropriate, XkbAddDe-
       viceLedInfo returns NULL.

       To allocate additional space for button actions in an XkbDeviceInfoRec structure, use XkbResizeDeviceButtonActions.

STRUCTURES

       Information about X Input Extension devices is transferred between a client program and the Xkb extension in an XkbDeviceInfoRec structure:

	   typedef struct {
	       char *		    name;	   /* name for device */
	       Atom		    type;	   /* name for class of devices */
	       unsigned short	    device_spec;   /* device of interest */
	       Bool		    has_own_state; /* True=>this device has its own state */
	       unsigned short	    supported;	   /* bits indicating supported capabilities */
	       unsigned short	    unsupported;   /* bits indicating unsupported capabilities */
	       unsigned short	    num_btns;	   /* number of entries in btn_acts */
	       XkbAction *	    btn_acts;	   /* button actions */
	       unsigned short	    sz_leds;	   /* total number of entries in LEDs vector */
	       unsigned short	    num_leds;	   /* number of valid entries in LEDs vector */
	       unsigned short	    dflt_kbd_fb;   /* input extension ID of default (core kbd) indicator */
	       unsigned short	    dflt_led_fb;   /* input extension ID of default indicator feedback */
	       XkbDeviceLedInfoPtr  leds;	   /* LED descriptions */
	   } XkbDeviceInfoRec, *XkbDeviceInfoPtr;

	   typedef struct {
	       unsigned short	   led_class;	     /* class for this LED device*/
	       unsigned short	   led_id;	     /* ID for this LED device */
	       unsigned int	   phys_indicators;  /* bits for which LEDs physically present */
	       unsigned int	   maps_present;     /* bits for which LEDs have maps in maps */
	       unsigned int	   names_present;    /* bits for which LEDs are in names */
	       unsigned int	   state;	     /* 1 bit => corresponding LED is on */
	       Atom		   names[XkbNumIndicators];   /* names for LEDs */
	       XkbIndicatorMapRec  maps;	     /* indicator maps for each LED */
	   } XkbDeviceLedInfoRec, *XkbDeviceLedInfoPtr;

SEE ALSO

       XkbResizeDeviceButtonActions(3)

X Version 11							   libX11 1.2.1 					    XkbAddDeviceLedInfo(3)

Linux and UNIX Man Pages

ledmon(8) [debian man page]

Check Out this Related Man Page