eeprom man page on NetBSD

Man page or keyword search:  
man Server   9087 pages
apropos Keyword Search (all sections)
Output format
NetBSD logo
[printable version]

EEPROM(8)		  BSD System Manager's Manual		     EEPROM(8)

NAME
     eeprom — display or modify contents of the EEPROM or openprom

SUN 3 SYNOPSIS
     eeprom [-] [-c] [-f device] [-i] [field[=value] ...]

SPARC, SPARC64, MACPPC and PREP SYNOPSIS
     eeprom [-] [-c] [-f device] [-i] [-v] [field[=value] ...]

DESCRIPTION
     eeprom provides an interface for displaying and changing the contents of
     the EEPROM or openprom.  The eeprom tool is only installed on supported
     platforms.

     Without any arguments, eeprom will list all of the known fields and their
     corresponding values.  When given the name of a specific field, eeprom
     will display that value or set it if the field name is followed by ‘=’
     and a value.  Only the super-user may modify the contents of the EEPROM
     or openprom.

     The options are as follows:

     -	     Commands are taken from stdin and displayed on stdout.

     -c	     eeprom will fix incorrect checksum values and exit.  This flag is
	     quietly ignored on systems with an openprom.

     -f device
	     On systems with an EEPROM, use device instead of the default
	     /dev/eeprom.  On systems with an openprom, use device instead of
	     the default /dev/openprom.

     -i	     If checksum values are incorrect, eeprom will ignore them and
	     continue after displaying a warning.  This flag is quietly
	     ignored on systems with an openprom.

     The following options are valid only on the SPARC and will produce an
     error when used on a Sun 3:

     -v	     On systems with an openprom, be verbose when setting a value.
	     Systems with an EEPROM are always verbose.

     The -v option is also present on sparc64, macppc, and prep systems.

FIELDS AND VALUES
     The following fields and values are for systems with an EEPROM:

     hwupdate		A valid date, such as “7/12/95”.  The strings “today”
			and “now” are also acceptable.

     memsize		How much memory, in megabytes, is installed in the
			system.

     memtest		How much memory, in megabytes, is to be tested upon
			power-up.

     scrsize		The size of the screen.	 Acceptable values are
			“1024x1024”, “1152x900”, “1600x1280”, and “1440x1440”.

     watchdog_reboot	If true, the system will reboot upon reset.  Other‐
			wise, the system will fall into the monitor.

     default_boot	If true, the system will use the boot device stored in
			bootdev.

     bootdev		Specifies the default boot device in the form
			cc(x,x,x), where ‘cc’ is a combination of two letters
			such as ‘sd’ or ‘le’ and each ‘x’ is a hexadecimal
			number between 0 and ff, less the prepending ‘0x’.

     kbdtype		This value is “0” for all Sun keyboards.

     console		Specifies the console type.  Valid values are “b&w”,
			“ttya”, “ttyb”, “color”, and “p4opt”.

     keyclick		If true, the keys click annoyingly.

     diagdev		This is a string very similar to that used by bootdev.
			It specifies the default boot device when the diagnos‐
			tic switch is turned on.

     diagpath		A 40-character, NULL-terminated string specifying the
			kernel or standalone program to load when the diagnos‐
			tic switch is turned on.

     columns		An 8-bit integer specifying the number of columns on
			the console.

     rows		An 8-bit integer specifying the number of rows on the
			console.

     ttya_use_baud	Use the baud rate stored in ttya_baud instead of the
			default 9600.

     ttya_baud		A 16-bit integer specifying the baud rate to use on
			ttya.

     ttya_no_rtsdtr	If true, disables RTS/DTR.

     ttyb_use_baud	Similar to ttya_use_baud, but for ttyb.

     ttyb_baud		Similar to ttya_baud, but for ttyb.

     ttyb_no_rtsdtr	Similar to ttya_no_rtsdtr, but for ttyb.

     banner		An 80-character, NULL-terminated string to use at
			power-up instead of the default Sun banner.

     Note that the secure, bad_login, and password fields are not currently
     supported.

     Since the openprom is designed such that the field names are arbitrary,
     explaining them here is dubious.  Below are field names and values that
     one is likely to see on a system with an openprom.	 NOTE: this list may
     be incomplete or incorrect due to differences between revisions of the
     openprom.

     sunmon-compat?	     If true, the old EEPROM-style interface will be
			     used while in the monitor, rather than the open‐
			     prom-style interface.

     selftest-#megs	     A 32-bit integer specifying the number of
			     megabytes of memory to test upon power-up.

     oem-logo		     A 64bitx64bit bitmap in Sun Iconedit format.  To
			     set the bitmap, give the pathname of the file
			     containing the image.  NOTE: this property is not
			     yet supported.

     oem-logo?		     If true, enables the use of the bitmap stored in
			     oem-logo rather than the default Sun logo.

     oem-banner		     A string to use at power up, rather than the
			     default Sun banner.

     oem-banner?	     If true, enables the use of the banner stored in
			     oem-banner rather than the default Sun banner.

     ttya-mode		     A string of five comma separated fields in the
			     format “9600,8,n,1,-”.  The first field is the
			     baud rate.	 The second field is the number of
			     data bits.	 The third field is the parity;
			     acceptable values for parity are ‘n’ (none), ‘e’
			     (even), ‘o’ (odd), ‘m’ (mark), and ‘s’ (space).
			     The fourth field is the number of stop bits.  The
			     fifth field is the ‘handshake’ field; acceptable
			     values are ‘-’ (none), ‘h’ (RTS/CTS), and ‘s’
			     (Xon/Xoff).

     ttya-rts-dtr-off	     If true, the system will ignore RTS/DTR.

     ttya-ignore-cd	     If true, the system will ignore carrier detect.

     ttyb-mode		     Similar to ttya-mode, but for ttyb.

     ttyb-rts-dtr-off	     Similar to ttya-rts-dtr-off, but for ttyb.

     ttyb-ignore-cd	     Similar to ttya-ignore-cd, but for ttyb.

     sbus-probe-list	     Four digits in the format “0123” specifying which
			     order to probe the sbus at power-up.  It is
			     unlikely that this value should ever be changed.

     screen-#columns	     An 8-bit integer specifying the number of columns
			     on the console.

     screen-#rows	     An 8-bit integer specifying the number of rows on
			     the console.

     auto-boot?		     If true, the system will boot automatically at
			     power-up.

     watchdog-reboot?	     If true, the system will reboot upon reset.  Oth‐
			     erwise, system will fall into the monitor.

     input-device	     One of the strings “keyboard”, “ttya”, or “ttyb”
			     specifying the default console input device.

     output-device	     One of the strings “screen”, “ttya”, or “ttyb”
			     specifying the default console output device.

     keyboard-click?	     If true, the keys click annoyingly.

     sd-targets		     A string in the format “31204567” describing the
			     translation of physical to logical target.

     st-targets		     Similar to sd-targets, but for tapes.  The
			     default translation is “45670123”.

     scsi-initiator-id	     The SCSI ID of the on-board SCSI controller.

     hardware-revision	     A 7-character string describing a date, such as
			     “25May95”.

     last-hardware-update    Similar to hardware-revision, describing when the
			     CPU was last updated.

     diag-switch?	     If true, the system will boot and run in diagnos‐
			     tic mode.

FILES
     /dev/eeprom      The EEPROM device on systems with an EEPROM.

     /dev/openprom    The openprom device on systems with an openprom.

     /dev/nvram	      The nvram device on PReP systems.

SEE ALSO
     ofctl(8)

BUGS
     The fields and their values are not necessarily well defined on systems
     with an openprom.	Your mileage may vary.

     There are a few fields known to exist in some revisions of the EEPROM
     and/or openprom that are not yet supported.  Most notable are those
     relating to password protection of the EEPROM or openprom.

     Avoid gratuitously changing the contents of the EEPROM.  It has a limited
     number of write cycles.

     The date parser isn't very intelligent.

BSD			       February 27, 2007			   BSD
[top]
                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 
More information is available in HTML format for server NetBSD

List of man pages available for NetBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net