Kconfig - OpenGrok cross reference for /linux-5.10/drivers/acpi/Kconfig

1 # SPDX-License-Identifier: GPL-2.0
10 	bool "ACPI (Advanced Configuration and Power Interface) Support"
16 	  Advanced Configuration and Power Interface (ACPI) support for
17 	  Linux requires an ACPI-compliant platform (hardware/firmware),
18 	  and assumes the presence of OS-directed configuration and power
23 	  legacy configuration and power management interfaces, including
24 	  the Plug-and-Play BIOS specification (PnP BIOS), the
25 	  MultiProcessor Specification (MPS), and the Advanced Power
30 	  <https://01.org/linux-acpi>
37 	  ACPI is an open industry specification originally co-developed by
38 	  Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. Currently,
66 	  Enable in-kernel debugging of AML facilities: statistics,
107 	  the supported ACPI revision which makes it expose system configuration
116 	  This option enables a DMI-based quirk for the above Dell machine (so
124 	  Say N to disable Embedded Controller /sys/kernel/debug interface
127 	  Controller in a way that a normal reboot is not enough. You then
128 	  have to power off your system, and remove the laptop battery for
130 	  An Embedded Controller typically is available on laptops and reads
144 	  whether a system is on AC or not.  If you have a system that can
156 	  /proc/acpi/battery. If you have a mobile system with a battery,
167 	  This driver handles events on the power, sleep, and lid buttons.
169 	  performs user-defined actions such as shutting down the system.
170 	  This is necessary for software-controlled poweroff.
176 	tristate "Tiny Power Button Driver"
180 	  The tiny power button driver only handles the power button. Rather
185 	  which use a simulated power button to initiate a controlled poweroff,
190 	int "Tiny Power Button Signal"
194 	  Default signal to send to init in response to the power button.
196 	  Likely values here include 38 (SIGRTMIN+4) to power off, or 2
219 	  This driver supports ACPI fan devices, allowing user-mode
230 	  Time Clock (RTC).  Its wake timers allow the system to transition from
234 	  TAD maintain the time of day information across platform power
241 	  This driver supports ACPI-controlled docking stations and removable
281 	  by several flavors of cpufreq performance-state, thermal, throttling and
291 	  This driver enables the ACPI to access the BMC controller. And it
293 	  controller, which can be found on on the server.
312 	  is defined, which is to reduce power consumption. This driver
335 	  See Documentation/admin-guide/acpi/dsdt-override.rst
357 	  See Documentation/admin-guide/acpi/initrd_table_override.rst for details
360 	bool "Override ACPI tables from built-in initrd"
365 	  from built-in uncompressed initrd.
367 	  See Documentation/admin-guide/acpi/initrd_table_override.rst for details
375 	  Use the acpi.debug_layer and acpi.debug_level kernel command-line
376 	  parameters documented in Documentation/firmware-guide/acpi/debug.rst and
377 	  Documentation/admin-guide/kernel-parameters.rst to control the type and
385 	  slots in the system.  This can help correlate PCI bus addresses,
387 	  the system.  If you are unsure, say N.
424 	tristate "Smart Battery System"
428 	  This driver supports the Smart Battery System, another
446 	  replaced without rebooting the system. For details refer to:
447 	  Documentation/firmware-guide/acpi/method-customizing.rst.
460 	  Resource Table, which allows the operating system to obtain
465 	bool "Hardware-reduced ACPI support only" if EXPERT
494 	  widely from one processor to another, system software cannot
500 	  information to system software, synchronous with MCE or CMCI. This
527 	bool "Power Management Timer Support" if EXPERT
531 	  The Power Management Timer is available on all ACPI-capable,
534 	  This timing source is not affected by power management features