Core kernel plumbing that implements runtime power management, system suspend and resume, and wakeup handling for every device the kernel knows about. It is the shared framework that individual hardware drivers hook into when they need to sleep, wake, or coordinate power transitions.
This is not actually a driver directory; it is part of the Linux device model and provides the power-management scaffolding that the rest of the kernel relies on. Removal is not a meaningful question here — every modern system depends on this code to suspend, resume, and idle devices.
repository signals
15files
10,361source lines
215commits, 5y
+2,859 / −5,505lines added / removed, 5y
76authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 215 total · active in 53/61 months
sources
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codex reasoning notes (technical)
Not a driver directory: contains Linux driver-core power-management infrastructure code, not a kernel-bound hardware device driver for a specific chipset or product family.