User`s guide

72 • Appendix C
• RESERVE SDR REPOSITORY – Sets the present “owner” of the
repository, as identified by the “Software ID” or by the requesters Slave
Address from the command.
• GET SDR – Returns the sensor record specified by Record ID.
• GET SDR REPOSITORY TIME – Returns the time for the SDR
Repository device.
• SET SDR REPOSITORY TIME– Sets the time for the SDR Repository
device.
• ENTER SDR REPOSITORY UPDATE MODE – Used to enter SDR
Repository Update Mode.
• RUN INITIALIZATION AGENT - After power-on and system resets,
Zircon executes the initialization agent. The initialization agent reads
SDR records and initializes sensors and management controllers
whose SDR entry has the “initialization required” bit set.
C.1.4.5 Sensor Device Commands
The firmware supports digital sensors based on GPIO readings and the
following analog sensors: fan tachometers, analog to digital converters
(ADCs) and LM75 temperature readings
• GET SENSOR READING – Returns the present reading for the
specified sensor. Source code is provided for this command.
C.1.4.6 SEL Device Commands
This section lists the commands used to support the System Event Log
(SEL).
• GET SEL INFO - Returns the number of entries in the SEL, free space,
SEL command version, and the timestamp for the most recent entry or
clear.
• GET SEL ALLOCATION INFO – Returns information on the SEL
allocation such as allocation unit size, total number of allocation units,
allocation units available, maximum contiguous block available, and
maximum record size.
• RESERVE SEL - Sets the present “owner” of the SEL, as identified by
the “Software ID” or by the requesters Slave Address from the
command.
• GET SEL ENTRY - Used to retrieve entries from the SEL specified by
Record ID.