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Service Indicators (LEDS)
-------------------------
The 'led' node under 'ibm,opal' lists service indicators available in the
system and their capabilities.
led {
compatible = "ibm,opal-v3-led";
phandle = <0x1000006b>;
linux,phandle = <0x1000006b>;
led-mode = "lightpath";
U78C9.001.RST0027-P1-C1 {
led-types = "identify", "fault";
led-loc = "descendent";
phandle = <0x1000006f>;
linux,phandle = <0x1000006f>;
};
...
...
};
'compatible' property describes LEDs compatibility.
'led-mode' property describes service indicator mode (lightpath/guidinglight).
Each node under 'led' node describes location code of FRU/Enclosure.
The properties under each node:
led-types : Supported indicators (attention/identify/fault).
led-loc : enclosure/descendent(FRU) location code.
These LEDs can be accessed through OPAL_LEDS_{GET/SET}_INDICATOR interfaces.
Refer to doc/opal-api/opal-led-get-set-114-115.txt for interface details.
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