A kernel subsystem that provides a common interface for power-capping technologies, letting the OS limit how much energy CPUs and other components can draw. Backends plugged into it include Intel's RAPL (Running Average Power Limit), DTPM for ARM systems, and IDLE injection mechanisms used in data centers and laptops to enforce thermal and energy budgets.
This is not actually a driver directory; it is the umbrella framework under which several power-capping backends (such as Intel RAPL and ARM DTPM) live. Any keep-or-remove decision needs to be made on the individual backends inside it, not on the framework itself.
repository signals
12files
5,844source lines
140commits, 5y
+3,545 / −1,163lines added / removed, 5y
45authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 140 total · active in 48/61 months
sources
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codex reasoning notes (technical)
Not a driver directory: top-level powercap subsystem/framework directory containing multiple power-capping components rather than one hardware driver.