[mirror_ubuntu-artful-kernel.git] / drivers / acpi / Kconfig

#
# ACPI Configuration
#

menuconfig ACPI
	bool "ACPI Support (Advanced Configuration and Power Interface) Support"
	depends on !X86_NUMAQ
	depends on !X86_VISWS
	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 PM_SLEEP
	default y

config ACPI_PROCFS
	bool "Deprecated /proc/acpi files"
	depends on PROC_FS
	---help---
	  For backwards compatibility, this option allows
	  depricated /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	  they have been replaced by functions in /sys.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_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
	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"
	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
	tristate "Dock"
	depends on EXPERIMENTAL
	help
	  This driver adds support for ACPI controlled docking stations

config ACPI_BAY
	tristate "Removable Drive Bay (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	depends on ACPI_DOCK
	help
	  This driver adds support for ACPI controlled removable drive
	  bays such as the IBM ultrabay or the Dell Module Bay.

config ACPI_PROCESSOR
	tristate "Processor"
	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
	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_ASUS
        tristate "ASUS/Medion Laptop Extras"
	depends on X86
	select BACKLIGHT_CLASS_DEVICE
        ---help---
          This driver provides support for extra features of ACPI-compatible
          ASUS laptops. As some of Medion laptops are made by ASUS, it may also
          support some Medion laptops (such as 9675 for example).  It makes all
          the extra buttons generate standard ACPI events that go through
          /proc/acpi/events, and (on some models) adds support for changing the
          display brightness and output, switching the LCD backlight on and off,
          and most importantly, allows you to blink those fancy LEDs intended
          for reporting mail and wireless status.

	  Note: display switching code is currently considered EXPERIMENTAL,
	  toying with these values may even lock your machine.

          All settings are changed via /proc/acpi/asus directory entries. Owner
          and group for these entries can be set with asus_uid and asus_gid
          parameters.

          More information and a userspace daemon for handling the extra buttons
          at <http://sourceforge.net/projects/acpi4asus/>.

          If you have an ACPI-compatible ASUS laptop, say Y or M here. This
          driver is still under development, so if your laptop is unsupported or
          something works not quite as expected, please use the mailing list
          available on the above page (acpi4asus-user@lists.sourceforge.net).

	  NOTE: This driver is deprecated and will probably be removed soon,
	  use asus-laptop instead.

config ACPI_TOSHIBA
	tristate "Toshiba Laptop Extras"
	depends on X86
	select BACKLIGHT_CLASS_DEVICE
	---help---
	  This driver adds support for access to certain system settings
	  on "legacy free" Toshiba laptops.  These laptops can be recognized by
	  their lack of a BIOS setup menu and APM support.

	  On these machines, all system configuration is handled through the
	  ACPI.  This driver is required for access to controls not covered
	  by the general ACPI drivers, such as LCD brightness, video output,
	  etc.

	  This driver differs from the non-ACPI Toshiba laptop driver (located
	  under "Processor type and features") in several aspects.
	  Configuration is accessed by reading and writing text files in the
	  /proc tree instead of by program interface to /dev.  Furthermore, no
	  power management functions are exposed, as those are handled by the
	  general ACPI drivers.

	  More information about this driver is available at
	  <http://memebeam.org/toys/ToshibaAcpiDriver>.

	  If you have a legacy free Toshiba laptop (such as the Libretto L1
	  series), say Y.

config ACPI_CUSTOM_DSDT
	bool "Include Custom DSDT"
	depends on !STANDALONE
	default n 
	help
	  This option is to load a custom ACPI DSDT
	  If you don't know what that is, say N.

config ACPI_CUSTOM_DSDT_FILE
	string "Custom DSDT Table file to include"
	depends on ACPI_CUSTOM_DSDT
	default ""
	help
	  Enter the full path name to the file which includes the AmlCode
	  declaration.

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 driver can optionally report errors with a great deal
	  of verbosity. Saying Y enables these statements. This will increase
	  your kernel size by around 50K.

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_EC
	bool
	default y
	help
	  This driver is required on some systems for the proper operation of
	  the battery and thermal drivers.  If you are compiling for a 
	  mobile system, say Y.

config ACPI_POWER
	bool
	default y

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 (EXPERIMENTAL)"
	depends on X86
	depends on EXPERIMENTAL
	help
	  This driver adds support for the Smart Battery System.
	  A "Smart Battery" is quite old and quite rare compared
	  to today's ACPI "Control Method" battery.

endif	# ACPI
Commit	Line	Data
1da177e4 LT	1	#
	2	# ACPI Configuration
	3	#
	4
3f2c48c9 JE	5	menuconfig ACPI
3f2c48c9 JE	6	bool "ACPI Support (Advanced Configuration and Power Interface) Support"
db503422	7	depends on !X86_NUMAQ
1da177e4 LT	8	depends on !X86_VISWS
	9	depends on !IA64_HP_SIM
	10	depends on IA64 \|\| X86
1300124f	11	depends on PCI
6796a120	12	depends on PM
243b66e7	13	select PNP
1da177e4 LT	14	default y
	15	---help---
	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
	19	management (OSPM) software. This option will enlarge your
	20	kernel by about 70K.
	21
	22	Linux ACPI provides a robust functional replacement for several
	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
	26	Management (APM) specification. If both ACPI and APM support
	27	are configured, whichever is loaded first shall be used.
	28
	29	The ACPI SourceForge project contains the latest source code,
	30	documentation, tools, mailing list subscription, and other
	31	information. This project is available at:
	32	<http://sourceforge.net/projects/acpi>
	33
	34	Linux support for ACPI is based on Intel Corporation's ACPI
	35	Component Architecture (ACPI CA). For more information see:
	36	<http://developer.intel.com/technology/iapc/acpi>
	37
	38	ACPI is an open industry specification co-developed by Compaq,
	39	Intel, Microsoft, Phoenix, and Toshiba. The specification is
	40	available at:
	41	<http://www.acpi.info>
	42
3e11c3ce LB	43	if ACPI
3e11c3ce LB	44
673d5b43 LB	45	config ACPI_SLEEP
	46	bool
	47	depends on PM_SLEEP
	48	default y
	49
b981c591	50	config ACPI_PROCFS
fb804714 LB	51	bool "Deprecated /proc/acpi files"
fb804714 LB	52	depends on PROC_FS
b981c591	53	---help---
fb804714 LB	54	For backwards compatibility, this option allows
	55	depricated /proc/acpi/ files to exist, even when
	56	they have been replaced by functions in /sys.
	57	The deprecated files (and their replacements) include:
	58
43532c8a	59	/proc/acpi/sleep (/sys/power/state)
fb804714 LB	60	/proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
	61	/proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
	62	/proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
	63	/proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
	64	/proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
	65
	66	This option has no effect on /proc/acpi/ files
	67	and functions which do not yet exist in /sys.
	68
	69	Say N to delete /proc/acpi/ files that have moved to /sys/
b981c591	70
14e04fb3 LB	71	config ACPI_PROC_EVENT
	72	bool "Deprecated /proc/acpi/event support"
	73	depends on PROC_FS
721ebe00	74	default y
14e04fb3 LB	75	---help---
	76	A user-space daemon, acpi, typically read /proc/acpi/event
	77	and handled all ACPI sub-system generated events.
	78
	79	These events are now delivered to user-space via
	80	either the input layer, or as netlink events.
	81
721ebe00	82	This build option enables the old code for legacy
14e04fb3 LB	83	user-space implementation. After some time, this will
	84	be moved under CONFIG_ACPI_PROCFS, and then deleted.
	85
721ebe00 HD	86	Say Y here to retain the old behaviour. Say N if your
	87	user-space is newer than kernel 2.6.23 (September 2007).
	88
1da177e4 LT	89	config ACPI_AC
	90	tristate "AC Adapter"
	91	depends on X86
07fefe4c	92	default y
1da177e4 LT	93	help
1da177e4 LT	94	This driver adds support for the AC Adapter object, which indicates
07fefe4c LB	95	whether a system is on AC, or not. If you have a system that can
07fefe4c LB	96	switch between A/C and battery, say Y.
1da177e4 LT	97
	98	config ACPI_BATTERY
	99	tristate "Battery"
	100	depends on X86
07fefe4c	101	default y
1da177e4 LT	102	help
	103	This driver adds support for battery information through
	104	/proc/acpi/battery. If you have a mobile system with a battery,
	105	say Y.
	106
	107	config ACPI_BUTTON
	108	tristate "Button"
c0968f0e	109	depends on INPUT
07fefe4c	110	default y
1da177e4	111	help
07fefe4c LB	112	This driver handles events on the power, sleep and lid buttons.
	113	A daemon reads /proc/acpi/event and perform user-defined actions
	114	such as shutting down the system. This is necessary for
	115	software controlled poweroff.
1da177e4 LT	116
	117	config ACPI_VIDEO
	118	tristate "Video"
23b0f015	119	depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
1da177e4 LT	120	help
	121	This driver implement the ACPI Extensions For Display Adapters
	122	for integrated graphics devices on motherboard, as specified in
	123	ACPI 2.0 Specification, Appendix B, allowing to perform some basic
	124	control like defining the video POST device, retrieving EDID information
	125	or to setup a video output, etc.
	126	Note that this is an ref. implementation only. It may or may not work
	127	for your integrated video device.
	128
	129	config ACPI_FAN
	130	tristate "Fan"
07fefe4c	131	default y
1da177e4 LT	132	help
	133	This driver adds support for ACPI fan devices, allowing user-mode
	134	applications to perform basic fan control (on, off, status).
	135
c8f7a62c LB	136	config ACPI_DOCK
c8f7a62c LB	137	tristate "Dock"
8d7bff6c	138	depends on EXPERIMENTAL
c8f7a62c LB	139	help
	140	This driver adds support for ACPI controlled docking stations
	141
01b57e73	142	config ACPI_BAY
0ed1e38d	143	tristate "Removable Drive Bay (EXPERIMENTAL)"
01b57e73	144	depends on EXPERIMENTAL
b1a316f6	145	depends on ACPI_DOCK
01b57e73 KCA	146	help
	147	This driver adds support for ACPI controlled removable drive
	148	bays such as the IBM ultrabay or the Dell Module Bay.
	149
1da177e4 LT	150	config ACPI_PROCESSOR
1da177e4 LT	151	tristate "Processor"
07fefe4c	152	default y
1da177e4 LT	153	help
	154	This driver installs ACPI as the idle handler for Linux, and uses
	155	ACPI C2 and C3 processor states to save power, on systems that
07fefe4c LB	156	support it. It is required by several flavors of cpufreq
07fefe4c LB	157	Performance-state drivers.
1da177e4 LT	158
1da177e4 LT	159	config ACPI_HOTPLUG_CPU
cbfc1bae AB	160	bool
cbfc1bae AB	161	depends on ACPI_PROCESSOR && HOTPLUG_CPU
1da177e4	162	select ACPI_CONTAINER
cbfc1bae	163	default y
1da177e4 LT	164
	165	config ACPI_THERMAL
	166	tristate "Thermal Zone"
	167	depends on ACPI_PROCESSOR
07fefe4c	168	default y
1da177e4 LT	169	help
	170	This driver adds support for ACPI thermal zones. Most mobile and
	171	some desktop systems support ACPI thermal zones. It is HIGHLY
	172	recommended that this option be enabled, as your processor(s)
	173	may be damaged without it.
	174
	175	config ACPI_NUMA
	176	bool "NUMA support"
	177	depends on NUMA
762834e8	178	depends on (X86 \|\| IA64)
1da177e4 LT	179	default y if IA64_GENERIC \|\| IA64_SGI_SN2
	180
	181	config ACPI_ASUS
	182	tristate "ASUS/Medion Laptop Extras"
	183	depends on X86
2039a6eb	184	select BACKLIGHT_CLASS_DEVICE
1da177e4 LT	185	---help---
	186	This driver provides support for extra features of ACPI-compatible
	187	ASUS laptops. As some of Medion laptops are made by ASUS, it may also
	188	support some Medion laptops (such as 9675 for example). It makes all
	189	the extra buttons generate standard ACPI events that go through
	190	/proc/acpi/events, and (on some models) adds support for changing the
	191	display brightness and output, switching the LCD backlight on and off,
	192	and most importantly, allows you to blink those fancy LEDs intended
	193	for reporting mail and wireless status.
	194
	195	Note: display switching code is currently considered EXPERIMENTAL,
	196	toying with these values may even lock your machine.
85091b71	197
1da177e4 LT	198	All settings are changed via /proc/acpi/asus directory entries. Owner
	199	and group for these entries can be set with asus_uid and asus_gid
	200	parameters.
85091b71	201
1da177e4 LT	202	More information and a userspace daemon for handling the extra buttons
1da177e4 LT	203	at <http://sourceforge.net/projects/acpi4asus/>.
85091b71	204
1da177e4 LT	205	If you have an ACPI-compatible ASUS laptop, say Y or M here. This
	206	driver is still under development, so if your laptop is unsupported or
	207	something works not quite as expected, please use the mailing list
85091b71 CC	208	available on the above page (acpi4asus-user@lists.sourceforge.net).
	209
	210	NOTE: This driver is deprecated and will probably be removed soon,
	211	use asus-laptop instead.
	212
1da177e4 LT	213	config ACPI_TOSHIBA
	214	tristate "Toshiba Laptop Extras"
	215	depends on X86
c9263557	216	select BACKLIGHT_CLASS_DEVICE
1da177e4 LT	217	---help---
	218	This driver adds support for access to certain system settings
	219	on "legacy free" Toshiba laptops. These laptops can be recognized by
	220	their lack of a BIOS setup menu and APM support.
	221
	222	On these machines, all system configuration is handled through the
	223	ACPI. This driver is required for access to controls not covered
	224	by the general ACPI drivers, such as LCD brightness, video output,
	225	etc.
	226
	227	This driver differs from the non-ACPI Toshiba laptop driver (located
	228	under "Processor type and features") in several aspects.
	229	Configuration is accessed by reading and writing text files in the
	230	/proc tree instead of by program interface to /dev. Furthermore, no
	231	power management functions are exposed, as those are handled by the
	232	general ACPI drivers.
	233
	234	More information about this driver is available at
	235	<http://memebeam.org/toys/ToshibaAcpiDriver>.
	236
	237	If you have a legacy free Toshiba laptop (such as the Libretto L1
	238	series), say Y.
	239
	240	config ACPI_CUSTOM_DSDT
	241	bool "Include Custom DSDT"
	242	depends on !STANDALONE
	243	default n
	244	help
c73a668c	245	This option is to load a custom ACPI DSDT
1da177e4 LT	246	If you don't know what that is, say N.
	247
	248	config ACPI_CUSTOM_DSDT_FILE
	249	string "Custom DSDT Table file to include"
	250	depends on ACPI_CUSTOM_DSDT
	251	default ""
	252	help
c30fe7f7 UZ	253	Enter the full path name to the file which includes the AmlCode
c30fe7f7 UZ	254	declaration.
1da177e4 LT	255
1da177e4 LT	256	config ACPI_BLACKLIST_YEAR
2eb1bdba	257	int "Disable ACPI for systems before Jan 1st this year" if X86_32
1da177e4 LT	258	default 0
	259	help
	260	enter a 4-digit year, eg. 2001 to disable ACPI by default
	261	on platforms with DMI BIOS date before January 1st that year.
	262	"acpi=force" can be used to override this mechanism.
	263
	264	Enter 0 to disable this mechanism and allow ACPI to
	265	run by default no matter what the year. (default)
	266
	267	config ACPI_DEBUG
	268	bool "Debug Statements"
1da177e4 LT	269	default n
	270	help
	271	The ACPI driver can optionally report errors with a great deal
	272	of verbosity. Saying Y enables these statements. This will increase
	273	your kernel size by around 50K.
	274
798d9103 TR	275	config ACPI_DEBUG_FUNC_TRACE
	276	bool "Additionally enable ACPI function tracing"
	277	default n
	278	depends on ACPI_DEBUG
	279	help
	280	ACPI Debug Statements slow down ACPI processing. Function trace
	281	is about half of the penalty and is rarely useful.
	282
1da177e4 LT	283	config ACPI_EC
1da177e4 LT	284	bool
1da177e4 LT	285	default y
	286	help
	287	This driver is required on some systems for the proper operation of
	288	the battery and thermal drivers. If you are compiling for a
	289	mobile system, say Y.
	290
	291	config ACPI_POWER
	292	bool
1da177e4 LT	293	default y
1da177e4 LT	294
1da177e4 LT	295	config ACPI_SYSTEM
1da177e4 LT	296	bool
1da177e4 LT	297	default y
	298	help
	299	This driver will enable your system to shut down using ACPI, and
	300	dump your ACPI DSDT table using /proc/acpi/dsdt.
	301
1da177e4	302	config X86_PM_TIMER
e78256b8	303	bool "Power Management Timer Support" if EMBEDDED
1da177e4	304	depends on X86
07fefe4c	305	default y
1da177e4 LT	306	help
	307	The Power Management Timer is available on all ACPI-capable,
	308	in most cases even if ACPI is unusable or blacklisted.
	309
c73a668c	310	This timing source is not affected by power management features
1da177e4 LT	311	like aggressive processor idling, throttling, frequency and/or
	312	voltage scaling, unlike the commonly used Time Stamp Counter
	313	(TSC) timing source.
	314
e78256b8 AK	315	You should nearly always say Y here because many modern
e78256b8 AK	316	systems require this timer.
1da177e4 LT	317
	318	config ACPI_CONTAINER
	319	tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
	320	depends on EXPERIMENTAL
	321	default (ACPI_HOTPLUG_MEMORY \|\| ACPI_HOTPLUG_CPU \|\| ACPI_HOTPLUG_IO)
	322	---help---
45b1b196 KT	323	This allows _physical_ insertion and removal of CPUs and memory.
	324	This can be useful, for example, on NUMA machines that support
	325	ACPI based physical hotplug of nodes, or non-NUMA machines that
	326	support physical cpu/memory hot-plug.
	327
	328	If one selects "m", this driver can be loaded with
	329	"modprobe acpi_container".
1da177e4 LT	330
	331	config ACPI_HOTPLUG_MEMORY
	332	tristate "Memory Hotplug"
bc02af93	333	depends on MEMORY_HOTPLUG
1da177e4 LT	334	default n
	335	help
	336	This driver adds supports for ACPI Memory Hotplug. This driver
	337	provides support for fielding notifications on ACPI memory
	338	devices (PNP0C80) which represent memory ranges that may be
	339	onlined or offlined during runtime.
	340
	341	Enabling this driver assumes that your platform hardware
	342	and firmware have support for hot-plugging physical memory. If
	343	your system does not support physically adding or ripping out
c73a668c	344	memory DIMMs at some platform defined granularity (individually
1da177e4 LT	345	or as a bank) at runtime, then you need not enable this driver.
	346
	347	If one selects "m," this driver can be loaded using the following
	348	command:
	349	$>modprobe acpi_memhotplug
3f86b832 RT	350
	351	config ACPI_SBS
	352	tristate "Smart Battery System (EXPERIMENTAL)"
b4150fc4	353	depends on X86
3f86b832	354	depends on EXPERIMENTAL
3f86b832 RT	355	help
3f86b832 RT	356	This driver adds support for the Smart Battery System.
3f86b832 RT	357	A "Smart Battery" is quite old and quite rare compared
	358	to today's ACPI "Control Method" battery.
	359
1da177e4	360	endif # ACPI