Commit Graph

5 Commits

Author SHA1 Message Date
Marius Strobl
652985b98f - Sprinkle const.
- Remove incorrect __unused.
2009-03-19 20:24:30 +00:00
Marius Strobl
6ca1d15e09 Fix indentation in two spots to match the rest of this file. 2006-09-01 20:07:15 +00:00
Marius Strobl
45ad3f1162 Save on one variable in ofwo_action(). Leftover from an older version of
this function which needed the handle of the /options node more than once.
2004-08-15 20:18:54 +00:00
Alexander Kabaev
8568d3e3f4 Move __iniline function definition before its first usage in the file. 2004-07-28 07:17:00 +00:00
Marius Strobl
96818a07a7 Add eeprom(8), a utility to display and modify system configurations
stored in EEPROM or NVRAM. It's inspired by the NetBSD eeprom(8) and
the SunOS/Solaris eeprom(1M) utilities. Currently, this eeprom(8)
only supports systems equipped with Open Firmware and is only tested
on Sun machines but should work on any platform using Open Firmware.
A bit more specific, eeprom(8) can be used on these systems to do the
same under FreeBSD as can be done using the printenv and setenv
commandos in the boot monitor. One thing that only hardly can be done
using the boot monitor but easily with eeprom(8) is to write a logo
to the "oem-logo" property. eeprom(8) may also be useful to recover
the boot monitor password (in the default configuration only as root,
of course), i.e. when the boot monitor allows you to boot but you
can't alter the configuration because the password is unknown. The
man page may also be a useful reference of the various configuration
variables.

The idea of eeprom(8) is that handlers can be written to add support
for any firmware that stores such configuration in EEPROM or NVRAM;
sort of e.g. eeprom(1M) on Solaris/x86 is used to turn PAE-support
on and off (stored in a file then, not hardware). In FreeBSD, a
candidate for this would be a handler for the EFI boot environment
for FreeBSD/ia64.

eeprom(8) uses some code from NetBSD (eeprom.c and the base for
eeprom.8), the handler for the Open Firmware /options node
(ofw_options.[c,h]) was written using ofw_util.[c,h] from ofwdump(8).

Reviewed by:	ru (slightly earlier version of the man page)
2004-05-22 16:56:04 +00:00