sysctlr - Onyx and Challenge L/XL system controller communication device
The system controller device is used by sysctlrd to communicate with the
Onyx and Challenge L/XL system controller. The system controller
sequences power, monitors sensors, and drives the LCD front panel.
Through this driver, sysctlrd(1M) reads sensor information, displays
front panel messages, retrieves log messages, drives the CPU performance
meter, and handles alarms.
sysctlrd(1M), cpumeter(1M), cleanpowerdown(1M)
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