Kconfig - OpenGrok cross reference for /linux-6.12.1/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
138 	  Say N to disable Embedded Controller /sys/kernel/debug interface
141 	  Controller in a way that a normal reboot is not enough. You then
142 	  have to power off your system, and remove the laptop battery for
144 	  An Embedded Controller typically is available on laptops and reads
158 	  whether a system is on AC or not.  If you have a system that can
170 	  /proc/acpi/battery. If you have a mobile system with a battery,
181 	  This driver handles events on the power, sleep, and lid buttons.
183 	  performs user-defined actions such as shutting down the system.
184 	  This is necessary for software-controlled poweroff.
190 	tristate "Tiny Power Button Driver"
194 	  The tiny power button driver only handles the power button. Rather
199 	  which use a simulated power button to initiate a controlled poweroff,
204 	int "Tiny Power Button Signal"
208 	  Default signal to send to init in response to the power button.
210 	  Likely values here include 38 (SIGRTMIN+4) to power off, or 2
234 	  This driver supports ACPI fan devices, allowing user-mode
245 	  Time Clock (RTC).  Its wake timers allow the system to transition from
249 	  TAD maintain the time of day information across platform power
256 	  This driver supports ACPI-controlled docking stations and removable
296 	  by several flavors of cpufreq performance-state, thermal, throttling and
306 	  This driver enables the ACPI to access the BMC controller. And it
308 	  controller, which can be found on the server.
326 	  is defined, which is to reduce power consumption. This driver
374 	  See Documentation/admin-guide/acpi/initrd_table_override.rst for details
377 	bool "Override ACPI tables from built-in initrd"
382 	  from built-in uncompressed initrd.
384 	  See Documentation/admin-guide/acpi/initrd_table_override.rst for details
392 	  Use the acpi.debug_layer and acpi.debug_level kernel command-line
393 	  parameters documented in Documentation/firmware-guide/acpi/debug.rst and
394 	  Documentation/admin-guide/kernel-parameters.rst to control the type and
402 	  slots in the system.  This can help correlate PCI bus addresses,
404 	  the system.  If you are unsure, say N.
435 	tristate "Smart Battery System"
439 	  This driver supports the Smart Battery System, another
457 	  Resource Table, which allows the operating system to obtain
462 	bool "Hardware-reduced ACPI support only" if EXPERT
493 	  widely from one processor to another, system software cannot
499 	  information to system software, synchronous with MCE or CMCI. This
519 	  to be updated on the fly while the system is running (runtime)
521 	  the system needs to be available 100% of the time and it cannot
523 	  carried out by the system is particularly important, so it cannot
593 	bool "Power Management Timer Support" if EXPERT
597 	  The Power Management Timer is available on all ACPI-capable,
600 	  This timing source is not affected by power management features