| .. _device-tree/ibm,opal/leds: |
| |
| Service Indicators (LEDS) |
| ========================= |
| |
| The 'leds' node under 'ibm,opal' lists service indicators available in the |
| system and their capabilities. |
| |
| .. code-block:: dts |
| |
| leds { |
| compatible = "ibm,opal-v3-led"; |
| phandle = <0x1000006b>; |
| linux,phandle = <0x1000006b>; |
| led-mode = "lightpath"; |
| |
| U78C9.001.RST0027-P1-C1 { |
| led-types = "identify", "fault"; |
| phandle = <0x1000006f>; |
| linux,phandle = <0x1000006f>; |
| }; |
| /* Other LED nodes like the above one */ |
| }; |
| |
| compatible |
| property describes LEDs compatibility. |
| |
| led-mode |
| property describes service indicator mode (lightpath/guidinglight). |
| |
| Each node under 'leds' node describes location code of FRU/Enclosure. |
| |
| The properties under each node: |
| |
| led-types |
| Supported indicators (attention/identify/fault). |
| |
| These LEDs can be accessed through OPAL_LEDS_{GET/SET}_INDICATOR interfaces. |
| Refer to :ref:`opal-api-LEDs` for interface details. |
