| Operator Panel (oppanel) |
| ======================== |
| |
| .. code-block:: dts |
| |
| oppanel { |
| compatible = "ibm,opal-oppanel"; |
| #lines = <0x2>; |
| #length = <0x10>; |
| }; |
| |
| The Operator Panel is a device for displaying small amounts of textual |
| data to an administrator. On IBM POWER8 systems with an FSP, this is a |
| small 16x2 LCD panel that can be viewed either from the Web UI of the FSP |
| (known as ASM) or by physically going to the machine and looking at the |
| panel. |
| |
| The operator panel does not have to be present. |
| |
| If it is, there are OPAL calls to read and write to it. |
| |
| The device tree entry is so that the host OS knows the size of the panel |
| and can pass buffers of the appropriate size to the OPAL calls. |