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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# ACPI Configuration
3#
4
Jan Engelhardt3f2c48c2007-07-03 01:40:59 -04005menuconfig ACPI
Frans Pop355ee5e2007-10-29 17:20:38 -04006 bool "ACPI (Advanced Configuration and Power Interface) Support"
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 depends on !IA64_HP_SIM
8 depends on IA64 || X86
Adrian Bunk13001242006-03-28 17:04:00 -05009 depends on PCI
Andrew Morton6796a122006-12-19 12:56:13 -080010 depends on PM
Len Brown243b66e2007-02-15 22:34:36 -050011 select PNP
Len Brown9fdd54f2009-02-06 12:24:17 -050012 select CPU_IDLE
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 default y
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070014 help
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 Advanced Configuration and Power Interface (ACPI) support for
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070016 Linux requires an ACPI-compliant platform (hardware/firmware),
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 and assumes the presence of OS-directed configuration and power
18 management (OSPM) software. This option will enlarge your
19 kernel by about 70K.
20
21 Linux ACPI provides a robust functional replacement for several
22 legacy configuration and power management interfaces, including
23 the Plug-and-Play BIOS specification (PnP BIOS), the
24 MultiProcessor Specification (MPS), and the Advanced Power
25 Management (APM) specification. If both ACPI and APM support
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070026 are configured, ACPI is used.
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070028 The project home page for the Linux ACPI subsystem is here:
29 <http://www.lesswatts.org/projects/acpi/>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030
31 Linux support for ACPI is based on Intel Corporation's ACPI
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070032 Component Architecture (ACPI CA). For more information on the
33 ACPI CA, see:
34 <http://acpica.org/>
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070036 ACPI is an open industry specification co-developed by
37 Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba.
38 The specification is available at:
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 <http://www.acpi.info>
40
Len Brown3e11c3c2005-05-27 04:53:27 -040041if ACPI
42
Len Brown673d5b42007-07-28 03:33:16 -040043config ACPI_SLEEP
44 bool
Rafael J. Wysocki5d1e0722008-10-22 14:58:43 -040045 depends on SUSPEND || HIBERNATION
Len Brown673d5b42007-07-28 03:33:16 -040046 default y
47
Zhang Ruib981c592007-01-29 11:02:30 +080048config ACPI_PROCFS
Len Brownfb804712007-07-24 01:50:46 -040049 bool "Deprecated /proc/acpi files"
50 depends on PROC_FS
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070051 help
Len Brownfb804712007-07-24 01:50:46 -040052 For backwards compatibility, this option allows
Rolf Eike Beer405bbe9f2007-10-20 03:10:57 +020053 deprecated /proc/acpi/ files to exist, even when
Len Brownfb804712007-07-24 01:50:46 -040054 they have been replaced by functions in /sys.
55 The deprecated files (and their replacements) include:
56
Len Brown43532c82007-07-24 02:16:50 -040057 /proc/acpi/sleep (/sys/power/state)
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070058 /proc/acpi/info (/sys/module/acpi/parameters/acpica_version)
Len Brownfb804712007-07-24 01:50:46 -040059 /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
60 /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
61 /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
62 /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
Zhao Yakui74cad4e2009-06-24 11:49:49 +080063 /proc/acpi/processor/*/power (/sys/devices/system/cpu/*/cpuidle/*)
64 /proc/acpi/processor/*/performance (/sys/devices/system/cpu/*/
65 cpufreq/*)
66 /proc/acpi/processor/*/throttling (/sys/class/thermal/
67 cooling_device*/*)
Len Brownfb804712007-07-24 01:50:46 -040068 This option has no effect on /proc/acpi/ files
69 and functions which do not yet exist in /sys.
70
71 Say N to delete /proc/acpi/ files that have moved to /sys/
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070072
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030073config ACPI_PROCFS_POWER
Alan Cox9e527972008-01-03 16:31:42 +000074 bool "Deprecated power /proc/acpi directories"
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030075 depends on PROC_FS
76 default y
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070077 help
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030078 For backwards compatibility, this option allows
Alan Cox9e527972008-01-03 16:31:42 +000079 deprecated power /proc/acpi/ directories to exist, even when
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030080 they have been replaced by functions in /sys.
Alan Cox9e527972008-01-03 16:31:42 +000081 The deprecated directories (and their replacements) include:
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030082 /proc/acpi/battery/* (/sys/class/power_supply/*)
83 /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
Alan Cox9e527972008-01-03 16:31:42 +000084 This option has no effect on /proc/acpi/ directories
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030085 and functions, which do not yet exist in /sys
Zhang Ruib981c592007-01-29 11:02:30 +080086
Alan Cox9e527972008-01-03 16:31:42 +000087 Say N to delete power /proc/acpi/ directories that have moved to /sys/
88
Darrick J. Wongde584af2009-09-18 12:41:09 -070089config ACPI_POWER_METER
90 tristate "ACPI 4.0 power meter"
91 depends on HWMON
92 help
93 This driver exposes ACPI 4.0 power meters as hardware monitoring
94 devices. Say Y (or M) if you have a computer with ACPI 4.0 firmware
95 and a power meter.
96
97 To compile this driver as a module, choose M here:
98 the module will be called power-meter.
99
Alexey Starikovskiy97749cd2008-01-01 14:27:24 -0500100config ACPI_SYSFS_POWER
101 bool "Future power /sys interface"
102 select POWER_SUPPLY
103 default y
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700104 help
Alexey Starikovskiy97749cd2008-01-01 14:27:24 -0500105 Say N to disable power /sys interface
Alan Cox9e527972008-01-03 16:31:42 +0000106
Thomas Renninger1195a092010-07-16 13:11:31 +0200107config ACPI_EC_DEBUGFS
108 tristate "EC read/write access through /sys/kernel/debug/ec"
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200109 default n
Thomas Renninger1195a092010-07-16 13:11:31 +0200110 help
111 Say N to disable Embedded Controller /sys/kernel/debug interface
112
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200113 Be aware that using this interface can confuse your Embedded
114 Controller in a way that a normal reboot is not enough. You then
115 have to power of your system, and remove the laptop battery for
116 some seconds.
Thomas Renninger1195a092010-07-16 13:11:31 +0200117 An Embedded Controller typically is available on laptops and reads
118 sensor values like battery state and temperature.
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200119 The kernel accesses the EC through ACPI parsed code provided by BIOS
120 tables. This option allows to access the EC directly without ACPI
121 code being involved.
Thomas Renninger1195a092010-07-16 13:11:31 +0200122 Thus this option is a debug option that helps to write ACPI drivers
123 and can be used to identify ACPI code or EC firmware bugs.
124
Len Brown14e04fb2007-08-23 15:20:26 -0400125config ACPI_PROC_EVENT
126 bool "Deprecated /proc/acpi/event support"
127 depends on PROC_FS
Hugh Dickins721ebe02007-08-27 16:04:39 +0100128 default y
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700129 help
130 A user-space daemon, acpid, typically reads /proc/acpi/event
131 and handles all ACPI-generated events.
Len Brown14e04fb2007-08-23 15:20:26 -0400132
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700133 These events are now delivered to user-space either
134 via the input layer or as netlink events.
Len Brown14e04fb2007-08-23 15:20:26 -0400135
Hugh Dickins721ebe02007-08-27 16:04:39 +0100136 This build option enables the old code for legacy
Len Brown14e04fb2007-08-23 15:20:26 -0400137 user-space implementation. After some time, this will
138 be moved under CONFIG_ACPI_PROCFS, and then deleted.
139
Hugh Dickins721ebe02007-08-27 16:04:39 +0100140 Say Y here to retain the old behaviour. Say N if your
141 user-space is newer than kernel 2.6.23 (September 2007).
142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143config ACPI_AC
144 tristate "AC Adapter"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400145 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400146 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700148 This driver supports the AC Adapter object, which indicates
149 whether a system is on AC or not. If you have a system that can
Len Brown07fefe42005-08-25 12:22:04 -0400150 switch between A/C and battery, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700152 To compile this driver as a module, choose M here:
153 the module will be called ac.
154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155config ACPI_BATTERY
156 tristate "Battery"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400157 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400158 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 help
160 This driver adds support for battery information through
161 /proc/acpi/battery. If you have a mobile system with a battery,
162 say Y.
163
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700164 To compile this driver as a module, choose M here:
165 the module will be called battery.
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167config ACPI_BUTTON
168 tristate "Button"
Dmitry Torokhovc0968f02006-11-09 00:40:13 -0500169 depends on INPUT
Len Brown07fefe42005-08-25 12:22:04 -0400170 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700172 This driver handles events on the power, sleep, and lid buttons.
Len Brown07fefe42005-08-25 12:22:04 -0400173 A daemon reads /proc/acpi/event and perform user-defined actions
174 such as shutting down the system. This is necessary for
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700175 software-controlled poweroff.
176
177 To compile this driver as a module, choose M here:
178 the module will be called button.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179
180config ACPI_VIDEO
181 tristate "Video"
Luming Yu23b0f012007-05-09 21:07:05 +0800182 depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
Andreas Herrmann03e2bf22007-09-17 23:41:05 +0200183 depends on INPUT
Zhang Rui63c4ec92008-04-21 16:07:13 +0800184 select THERMAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700186 This driver implements the ACPI Extensions For Display Adapters
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 for integrated graphics devices on motherboard, as specified in
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700188 ACPI 2.0 Specification, Appendix B. This supports basic operations
189 such as defining the video POST device, retrieving EDID information,
190 and setting up a video output.
191
192 To compile this driver as a module, choose M here:
193 the module will be called video.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
195config ACPI_FAN
196 tristate "Fan"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800197 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400198 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700200 This driver supports ACPI fan devices, allowing user-mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 applications to perform basic fan control (on, off, status).
202
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700203 To compile this driver as a module, choose M here:
204 the module will be called fan.
205
Len Brownc8f7a62c2006-07-09 17:22:28 -0400206config ACPI_DOCK
Shaohua Li898b0542008-09-27 11:10:28 +0800207 bool "Dock"
Len Brown8d7bff62006-07-09 22:09:57 -0400208 depends on EXPERIMENTAL
Len Brownc8f7a62c2006-07-09 17:22:28 -0400209 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700210 This driver supports ACPI-controlled docking stations and removable
211 drive bays such as the IBM Ultrabay and the Dell Module Bay.
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700212
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213config ACPI_PROCESSOR
214 tristate "Processor"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800215 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400216 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700218 This driver installs ACPI as the idle handler for Linux and uses
219 ACPI C2 and C3 processor states to save power on systems that
Len Brown07fefe42005-08-25 12:22:04 -0400220 support it. It is required by several flavors of cpufreq
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700221 performance-state drivers.
222
223 To compile this driver as a module, choose M here:
224 the module will be called processor.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225
226config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400227 bool
228 depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400230 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231
Shaohua Li8e0af512009-07-27 18:11:02 -0400232config ACPI_PROCESSOR_AGGREGATOR
233 tristate "Processor Aggregator"
234 depends on ACPI_PROCESSOR
235 depends on EXPERIMENTAL
Len Brownd91f79e2009-09-27 02:35:55 -0400236 depends on X86
Shaohua Li8e0af512009-07-27 18:11:02 -0400237 help
238 ACPI 4.0 defines processor Aggregator, which enables OS to perform
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200239 specific processor configuration and control that applies to all
Shaohua Li8e0af512009-07-27 18:11:02 -0400240 processors in the platform. Currently only logical processor idling
241 is defined, which is to reduce power consumption. This driver
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200242 supports the new device.
Shaohua Li8e0af512009-07-27 18:11:02 -0400243
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244config ACPI_THERMAL
245 tristate "Thermal Zone"
246 depends on ACPI_PROCESSOR
Zhang Rui3f655ef2008-01-17 15:51:11 +0800247 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400248 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700250 This driver supports ACPI thermal zones. Most mobile and
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 some desktop systems support ACPI thermal zones. It is HIGHLY
252 recommended that this option be enabled, as your processor(s)
253 may be damaged without it.
254
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700255 To compile this driver as a module, choose M here:
256 the module will be called thermal.
257
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258config ACPI_NUMA
259 bool "NUMA support"
260 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700261 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 default y if IA64_GENERIC || IA64_SGI_SN2
263
Randy Dunlap7ce95732008-02-22 11:25:04 -0800264config ACPI_CUSTOM_DSDT_FILE
265 string "Custom DSDT Table file to include"
266 default ""
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 depends on !STANDALONE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 help
Len Brownd89e9d62008-02-06 19:28:02 -0500269 This option supports a custom DSDT by linking it into the kernel.
270 See Documentation/acpi/dsdt-override.txt
271
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100272 Enter the full path name to the file which includes the AmlCode
273 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274
Randy Dunlap7ce95732008-02-22 11:25:04 -0800275 If unsure, don't enter a file name.
276
277config ACPI_CUSTOM_DSDT
278 bool
279 default ACPI_CUSTOM_DSDT_FILE != ""
280
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281config ACPI_BLACKLIST_YEAR
Andi Kleen2eb1bdb2006-02-26 04:18:43 +0100282 int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 default 0
284 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700285 Enter a 4-digit year, e.g., 2001, to disable ACPI by default
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 on platforms with DMI BIOS date before January 1st that year.
287 "acpi=force" can be used to override this mechanism.
288
289 Enter 0 to disable this mechanism and allow ACPI to
290 run by default no matter what the year. (default)
291
292config ACPI_DEBUG
293 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 default n
295 help
Bjorn Helgaasa0d84a92008-11-07 16:58:05 -0700296 The ACPI subsystem can produce debug output. Saying Y enables this
297 output and increases the kernel size by around 50K.
298
299 Use the acpi.debug_layer and acpi.debug_level kernel command-line
300 parameters documented in Documentation/acpi/debug.txt and
301 Documentation/kernel-parameters.txt to control the type and
302 amount of debug output.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303
Thomas Renninger798d91032007-05-31 17:20:39 +0200304config ACPI_DEBUG_FUNC_TRACE
305 bool "Additionally enable ACPI function tracing"
306 default n
307 depends on ACPI_DEBUG
308 help
309 ACPI Debug Statements slow down ACPI processing. Function trace
310 is about half of the penalty and is rarely useful.
311
Alex Chiang8344b562008-06-10 15:30:42 -0600312config ACPI_PCI_SLOT
313 tristate "PCI slot detection driver"
Alex Chiang268a03a2009-06-17 19:03:57 -0600314 depends on SYSFS
Alex Chiang8344b562008-06-10 15:30:42 -0600315 default n
316 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700317 This driver creates entries in /sys/bus/pci/slots/ for all PCI
318 slots in the system. This can help correlate PCI bus addresses,
319 i.e., segment/bus/device/function tuples, with physical slots in
320 the system. If you are unsure, say N.
321
322 To compile this driver as a module, choose M here:
323 the module will be called pci_slot.
Alex Chiang8344b562008-06-10 15:30:42 -0600324
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325config X86_PM_TIMER
Andi Kleene78256b2006-02-26 04:18:37 +0100326 bool "Power Management Timer Support" if EMBEDDED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400328 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 help
330 The Power Management Timer is available on all ACPI-capable,
331 in most cases even if ACPI is unusable or blacklisted.
332
Matt LaPlantec73a6682006-10-03 22:24:43 +0200333 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334 like aggressive processor idling, throttling, frequency and/or
335 voltage scaling, unlike the commonly used Time Stamp Counter
336 (TSC) timing source.
337
Andi Kleene78256b2006-02-26 04:18:37 +0100338 You should nearly always say Y here because many modern
339 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
341config ACPI_CONTAINER
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700342 tristate "Container and Module Devices (EXPERIMENTAL)"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 depends on EXPERIMENTAL
344 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700345 help
346 This driver supports ACPI Container and Module devices (IDs
347 ACPI0004, PNP0A05, and PNP0A06).
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500348
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700349 This helps support hotplug of nodes, CPUs, and memory.
350
351 To compile this driver as a module, choose M here:
352 the module will be called container.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
354config ACPI_HOTPLUG_MEMORY
355 tristate "Memory Hotplug"
Yasunori Gotobc02af92006-06-27 02:53:30 -0700356 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 default n
358 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700359 This driver supports ACPI memory hotplug. The driver
360 fields notifications on ACPI memory devices (PNP0C80),
361 which represent memory ranges that may be onlined or
362 offlined during runtime.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700364 If your hardware and firmware do not support adding or
365 removing memory devices at runtime, you need not enable
366 this driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700368 To compile this driver as a module, choose M here:
369 the module will be called acpi_memhotplug.
Rich Townsend3f86b832006-07-01 11:36:54 -0400370
371config ACPI_SBS
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400372 tristate "Smart Battery System"
Vladimir Lebedevb4150fc2007-03-19 17:45:50 +0300373 depends on X86
Rich Townsend3f86b832006-07-01 11:36:54 -0400374 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700375 This driver supports the Smart Battery System, another
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400376 type of access to battery information, found on some laptops.
Rich Townsend3f86b832006-07-01 11:36:54 -0400377
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700378 To compile this driver as a module, choose M here:
379 the modules will be called sbs and sbshc.
380
Huang Ying801eab82010-05-18 14:35:17 +0800381config ACPI_HED
382 tristate "Hardware Error Device"
383 help
384 This driver supports the Hardware Error Device (PNP0C33),
385 which is used to report some hardware errors notified via
386 SCI, mainly the corrected errors.
387
Huang Yinga643ce22010-05-18 14:35:12 +0800388source "drivers/acpi/apei/Kconfig"
389
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390endif # ACPI