| # | |
| # ACPI Configuration | |
| # | |
| menuconfig ACPI | |
| bool "ACPI (Advanced Configuration and Power Interface) Support" | |
| depends on !IA64_HP_SIM | |
| depends on IA64 || X86 | |
| depends on PCI | |
| depends on PM | |
| select PNP | |
| default y | |
| ---help--- | |
| Advanced Configuration and Power Interface (ACPI) support for | |
| Linux requires an ACPI compliant platform (hardware/firmware), | |
| and assumes the presence of OS-directed configuration and power | |
| management (OSPM) software. This option will enlarge your | |
| kernel by about 70K. | |
| Linux ACPI provides a robust functional replacement for several | |
| legacy configuration and power management interfaces, including | |
| the Plug-and-Play BIOS specification (PnP BIOS), the | |
| MultiProcessor Specification (MPS), and the Advanced Power | |
| Management (APM) specification. If both ACPI and APM support | |
| are configured, whichever is loaded first shall be used. | |
| The ACPI SourceForge project contains the latest source code, | |
| documentation, tools, mailing list subscription, and other | |
| information. This project is available at: | |
| <http://sourceforge.net/projects/acpi> | |
| Linux support for ACPI is based on Intel Corporation's ACPI | |
| Component Architecture (ACPI CA). For more information see: | |
| <http://developer.intel.com/technology/iapc/acpi> | |
| ACPI is an open industry specification co-developed by Compaq, | |
| Intel, Microsoft, Phoenix, and Toshiba. The specification is | |
| available at: | |
| <http://www.acpi.info> | |
| if ACPI | |
| config ACPI_SLEEP | |
| bool | |
| depends on SUSPEND || HIBERNATION | |
| default y | |
| config ACPI_PROCFS | |
| bool "Deprecated /proc/acpi files" | |
| depends on PROC_FS | |
| ---help--- | |
| For backwards compatibility, this option allows | |
| deprecated /proc/acpi/ files to exist, even when | |
| they have been replaced by functions in /sys. | |
| The deprecated files (and their replacements) include: | |
| /proc/acpi/sleep (/sys/power/state) | |
| /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) | |
| /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) | |
| /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) | |
| /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) | |
| /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) | |
| This option has no effect on /proc/acpi/ files | |
| and functions which do not yet exist in /sys. | |
| Say N to delete /proc/acpi/ files that have moved to /sys/ | |
| config ACPI_PROCFS_POWER | |
| bool "Deprecated power /proc/acpi directories" | |
| depends on PROC_FS | |
| default y | |
| ---help--- | |
| For backwards compatibility, this option allows | |
| deprecated power /proc/acpi/ directories to exist, even when | |
| they have been replaced by functions in /sys. | |
| The deprecated directories (and their replacements) include: | |
| /proc/acpi/battery/* (/sys/class/power_supply/*) | |
| /proc/acpi/ac_adapter/* (sys/class/power_supply/*) | |
| This option has no effect on /proc/acpi/ directories | |
| and functions, which do not yet exist in /sys | |
| Say N to delete power /proc/acpi/ directories that have moved to /sys/ | |
| config ACPI_SYSFS_POWER | |
| bool "Future power /sys interface" | |
| select POWER_SUPPLY | |
| default y | |
| ---help--- | |
| Say N to disable power /sys interface | |
| config ACPI_PROC_EVENT | |
| bool "Deprecated /proc/acpi/event support" | |
| depends on PROC_FS | |
| default y | |
| ---help--- | |
| A user-space daemon, acpi, typically read /proc/acpi/event | |
| and handled all ACPI sub-system generated events. | |
| These events are now delivered to user-space via | |
| either the input layer, or as netlink events. | |
| This build option enables the old code for legacy | |
| user-space implementation. After some time, this will | |
| be moved under CONFIG_ACPI_PROCFS, and then deleted. | |
| Say Y here to retain the old behaviour. Say N if your | |
| user-space is newer than kernel 2.6.23 (September 2007). | |
| config ACPI_AC | |
| tristate "AC Adapter" | |
| depends on X86 | |
| default y | |
| help | |
| This driver adds support for the AC Adapter object, which indicates | |
| whether a system is on AC, or not. If you have a system that can | |
| switch between A/C and battery, say Y. | |
| config ACPI_BATTERY | |
| tristate "Battery" | |
| depends on X86 | |
| default y | |
| help | |
| This driver adds support for battery information through | |
| /proc/acpi/battery. If you have a mobile system with a battery, | |
| say Y. | |
| config ACPI_BUTTON | |
| tristate "Button" | |
| depends on INPUT | |
| default y | |
| help | |
| This driver handles events on the power, sleep and lid buttons. | |
| A daemon reads /proc/acpi/event and perform user-defined actions | |
| such as shutting down the system. This is necessary for | |
| software controlled poweroff. | |
| config ACPI_VIDEO | |
| tristate "Video" | |
| depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL | |
| depends on INPUT | |
| select THERMAL | |
| help | |
| This driver implement the ACPI Extensions For Display Adapters | |
| for integrated graphics devices on motherboard, as specified in | |
| ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
| control like defining the video POST device, retrieving EDID information | |
| or to setup a video output, etc. | |
| Note that this is an ref. implementation only. It may or may not work | |
| for your integrated video device. | |
| config ACPI_FAN | |
| tristate "Fan" | |
| select THERMAL | |
| default y | |
| help | |
| This driver adds support for ACPI fan devices, allowing user-mode | |
| applications to perform basic fan control (on, off, status). | |
| config ACPI_DOCK | |
| bool "Dock" | |
| depends on EXPERIMENTAL | |
| help | |
| This driver adds support for ACPI controlled docking stations and removable | |
| drive bays such as the IBM ultrabay or the Dell Module Bay. | |
| config ACPI_PROCESSOR | |
| tristate "Processor" | |
| select THERMAL | |
| default y | |
| help | |
| This driver installs ACPI as the idle handler for Linux, and uses | |
| ACPI C2 and C3 processor states to save power, on systems that | |
| support it. It is required by several flavors of cpufreq | |
| Performance-state drivers. | |
| config ACPI_HOTPLUG_CPU | |
| bool | |
| depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
| select ACPI_CONTAINER | |
| default y | |
| config ACPI_THERMAL | |
| tristate "Thermal Zone" | |
| depends on ACPI_PROCESSOR | |
| select THERMAL | |
| default y | |
| help | |
| This driver adds support for ACPI thermal zones. Most mobile and | |
| some desktop systems support ACPI thermal zones. It is HIGHLY | |
| recommended that this option be enabled, as your processor(s) | |
| may be damaged without it. | |
| config ACPI_NUMA | |
| bool "NUMA support" | |
| depends on NUMA | |
| depends on (X86 || IA64) | |
| default y if IA64_GENERIC || IA64_SGI_SN2 | |
| config ACPI_CUSTOM_DSDT_FILE | |
| string "Custom DSDT Table file to include" | |
| default "" | |
| depends on !STANDALONE | |
| help | |
| This option supports a custom DSDT by linking it into the kernel. | |
| See Documentation/acpi/dsdt-override.txt | |
| Enter the full path name to the file which includes the AmlCode | |
| declaration. | |
| If unsure, don't enter a file name. | |
| config ACPI_CUSTOM_DSDT | |
| bool | |
| default ACPI_CUSTOM_DSDT_FILE != "" | |
| config ACPI_BLACKLIST_YEAR | |
| int "Disable ACPI for systems before Jan 1st this year" if X86_32 | |
| default 0 | |
| help | |
| enter a 4-digit year, eg. 2001 to disable ACPI by default | |
| on platforms with DMI BIOS date before January 1st that year. | |
| "acpi=force" can be used to override this mechanism. | |
| Enter 0 to disable this mechanism and allow ACPI to | |
| run by default no matter what the year. (default) | |
| config ACPI_DEBUG | |
| bool "Debug Statements" | |
| default n | |
| help | |
| The ACPI subsystem can produce debug output. Saying Y enables this | |
| output and increases the kernel size by around 50K. | |
| Use the acpi.debug_layer and acpi.debug_level kernel command-line | |
| parameters documented in Documentation/acpi/debug.txt and | |
| Documentation/kernel-parameters.txt to control the type and | |
| amount of debug output. | |
| config ACPI_DEBUG_FUNC_TRACE | |
| bool "Additionally enable ACPI function tracing" | |
| default n | |
| depends on ACPI_DEBUG | |
| help | |
| ACPI Debug Statements slow down ACPI processing. Function trace | |
| is about half of the penalty and is rarely useful. | |
| config ACPI_PCI_SLOT | |
| tristate "PCI slot detection driver" | |
| default n | |
| help | |
| This driver will attempt to discover all PCI slots in your system, | |
| and creates entries in /sys/bus/pci/slots/. This feature can | |
| help you correlate PCI bus addresses with the physical geography | |
| of your slots. If you are unsure, say N. | |
| config ACPI_SYSTEM | |
| bool | |
| default y | |
| help | |
| This driver will enable your system to shut down using ACPI, and | |
| dump your ACPI DSDT table using /proc/acpi/dsdt. | |
| config X86_PM_TIMER | |
| bool "Power Management Timer Support" if EMBEDDED | |
| depends on X86 | |
| default y | |
| help | |
| The Power Management Timer is available on all ACPI-capable, | |
| in most cases even if ACPI is unusable or blacklisted. | |
| This timing source is not affected by power management features | |
| like aggressive processor idling, throttling, frequency and/or | |
| voltage scaling, unlike the commonly used Time Stamp Counter | |
| (TSC) timing source. | |
| You should nearly always say Y here because many modern | |
| systems require this timer. | |
| config ACPI_CONTAINER | |
| tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
| depends on EXPERIMENTAL | |
| default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
| ---help--- | |
| This allows _physical_ insertion and removal of CPUs and memory. | |
| This can be useful, for example, on NUMA machines that support | |
| ACPI based physical hotplug of nodes, or non-NUMA machines that | |
| support physical cpu/memory hot-plug. | |
| If one selects "m", this driver can be loaded with | |
| "modprobe acpi_container". | |
| config ACPI_HOTPLUG_MEMORY | |
| tristate "Memory Hotplug" | |
| depends on MEMORY_HOTPLUG | |
| default n | |
| help | |
| This driver adds supports for ACPI Memory Hotplug. This driver | |
| provides support for fielding notifications on ACPI memory | |
| devices (PNP0C80) which represent memory ranges that may be | |
| onlined or offlined during runtime. | |
| Enabling this driver assumes that your platform hardware | |
| and firmware have support for hot-plugging physical memory. If | |
| your system does not support physically adding or ripping out | |
| memory DIMMs at some platform defined granularity (individually | |
| or as a bank) at runtime, then you need not enable this driver. | |
| If one selects "m," this driver can be loaded using the following | |
| command: | |
| $>modprobe acpi_memhotplug | |
| config ACPI_SBS | |
| tristate "Smart Battery System" | |
| depends on X86 | |
| help | |
| This driver adds support for the Smart Battery System, another | |
| type of access to battery information, found on some laptops. | |
| endif # ACPI |