Kconfig - OpenGrok cross reference for /linux-6.15/drivers/acpi/Kconfig

1 # SPDX-License-Identifier: GPL-2.0
10 	bool "ACPI (Advanced Configuration and Power Interface) Support"
18 	  Advanced Configuration and Power Interface (ACPI) support for
19 	  Linux requires an ACPI-compliant platform (hardware/firmware),
20 	  and assumes the presence of OS-directed configuration and power
25 	  legacy configuration and power management interfaces, including
26 	  the Plug-and-Play BIOS specification (PnP BIOS), the
27 	  MultiProcessor Specification (MPS), and the Advanced Power
36 	  ACPI is an open industry specification originally co-developed by
37 	  Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. Currently,
72 	  Enable in-kernel debugging of AML facilities: statistics,
101 	  This table provides information on the timing of the system
121 	  the supported ACPI revision which makes it expose system configuration
130 	  This option enables a DMI-based quirk for the above Dell machine (so
136 	bool "Embedded Controller"
147 	  Say N to disable Embedded Controller /sys/kernel/debug interface
150 	  Controller in a way that a normal reboot is not enough. You then
151 	  have to power off your system, and remove the laptop battery for
153 	  An Embedded Controller typically is available on laptops and reads
167 	  whether a system is on AC or not.  If you have a system that can
179 	  /proc/acpi/battery. If you have a mobile system with a battery,
190 	  This driver handles events on the power, sleep, and lid buttons.
192 	  performs user-defined actions such as shutting down the system.
193 	  This is necessary for software-controlled poweroff.
199 	tristate "Tiny Power Button Driver"
203 	  The tiny power button driver only handles the power button. Rather
208 	  which use a simulated power button to initiate a controlled poweroff,
213 	int "Tiny Power Button Signal"
217 	  Default signal to send to init in response to the power button.
219 	  Likely values here include 38 (SIGRTMIN+4) to power off, or 2
243 	  This driver supports ACPI fan devices, allowing user-mode
254 	  Time Clock (RTC).  Its wake timers allow the system to transition from
258 	  TAD maintain the time of day information across platform power
265 	  This driver supports ACPI-controlled docking stations and removable
305 	  by several flavors of cpufreq performance-state, thermal, throttling and
315 	  This driver enables the ACPI to access the BMC controller. And it
317 	  controller, which can be found on the server.
335 	  is defined, which is to reduce power consumption. This driver
383 	  See Documentation/admin-guide/acpi/initrd_table_override.rst for details
386 	bool "Override ACPI tables from built-in initrd"
391 	  from built-in uncompressed initrd.
393 	  See Documentation/admin-guide/acpi/initrd_table_override.rst for details
401 	  Use the acpi.debug_layer and acpi.debug_level kernel command-line
402 	  parameters documented in Documentation/firmware-guide/acpi/debug.rst and
403 	  Documentation/admin-guide/kernel-parameters.rst to control the type and
411 	  slots in the system.  This can help correlate PCI bus addresses,
413 	  the system.  If you are unsure, say N.
444 	tristate "Smart Battery System"
448 	  This driver supports the Smart Battery System, another
466 	  Resource Table, which allows the operating system to obtain
471 	bool "Hardware-reduced ACPI support only" if EXPERT
502 	  widely from one processor to another, system software cannot
508 	  information to system software, synchronous with MCE or CMCI. This
528 	  to be updated on the fly while the system is running (runtime)
530 	  the system needs to be available 100% of the time and it cannot
532 	  carried out by the system is particularly important, so it cannot
602 	bool "Power Management Timer Support" if EXPERT
606 	  The Power Management Timer is available on all ACPI-capable,
609 	  This timing source is not affected by power management features