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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
Len Brown243b66e2007-02-15 22:34:36 -050010 select PNP
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 default y
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070012 help
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 Advanced Configuration and Power Interface (ACPI) support for
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070014 Linux requires an ACPI-compliant platform (hardware/firmware),
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 and assumes the presence of OS-directed configuration and power
16 management (OSPM) software. This option will enlarge your
17 kernel by about 70K.
18
19 Linux ACPI provides a robust functional replacement for several
20 legacy configuration and power management interfaces, including
21 the Plug-and-Play BIOS specification (PnP BIOS), the
22 MultiProcessor Specification (MPS), and the Advanced Power
23 Management (APM) specification. If both ACPI and APM support
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070024 are configured, ACPI is used.
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070026 The project home page for the Linux ACPI subsystem is here:
27 <http://www.lesswatts.org/projects/acpi/>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
29 Linux support for ACPI is based on Intel Corporation's ACPI
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070030 Component Architecture (ACPI CA). For more information on the
31 ACPI CA, see:
32 <http://acpica.org/>
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070034 ACPI is an open industry specification co-developed by
35 Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba.
36 The specification is available at:
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 <http://www.acpi.info>
38
Len Brown3e11c3c2005-05-27 04:53:27 -040039if ACPI
40
Len Brown673d5b42007-07-28 03:33:16 -040041config ACPI_SLEEP
42 bool
Rafael J. Wysocki5d1e0722008-10-22 14:58:43 -040043 depends on SUSPEND || HIBERNATION
Len Brown673d5b42007-07-28 03:33:16 -040044 default y
45
Zhang Ruib981c592007-01-29 11:02:30 +080046config ACPI_PROCFS
Len Brownfb804712007-07-24 01:50:46 -040047 bool "Deprecated /proc/acpi files"
48 depends on PROC_FS
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070049 help
Len Brownfb804712007-07-24 01:50:46 -040050 For backwards compatibility, this option allows
Rolf Eike Beer405bbe92007-10-20 03:10:57 +020051 deprecated /proc/acpi/ files to exist, even when
Len Brownfb804712007-07-24 01:50:46 -040052 they have been replaced by functions in /sys.
Len Brownfb804712007-07-24 01:50:46 -040053
Len Brownfb804712007-07-24 01:50:46 -040054 This option has no effect on /proc/acpi/ files
55 and functions which do not yet exist in /sys.
56
57 Say N to delete /proc/acpi/ files that have moved to /sys/
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070058
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030059config ACPI_PROCFS_POWER
Alan Cox9e527972008-01-03 16:31:42 +000060 bool "Deprecated power /proc/acpi directories"
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030061 depends on PROC_FS
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070062 help
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030063 For backwards compatibility, this option allows
Alan Cox9e527972008-01-03 16:31:42 +000064 deprecated power /proc/acpi/ directories to exist, even when
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030065 they have been replaced by functions in /sys.
Alan Cox9e527972008-01-03 16:31:42 +000066 The deprecated directories (and their replacements) include:
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030067 /proc/acpi/battery/* (/sys/class/power_supply/*)
68 /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
Alan Cox9e527972008-01-03 16:31:42 +000069 This option has no effect on /proc/acpi/ directories
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030070 and functions, which do not yet exist in /sys
Zhang Rui6d855fc2011-01-10 11:16:30 +080071 This option, together with the proc directories, will be
72 deleted in 2.6.39.
Zhang Ruib981c592007-01-29 11:02:30 +080073
Alan Cox9e527972008-01-03 16:31:42 +000074 Say N to delete power /proc/acpi/ directories that have moved to /sys/
75
Thomas Renninger1195a092010-07-16 13:11:31 +020076config ACPI_EC_DEBUGFS
77 tristate "EC read/write access through /sys/kernel/debug/ec"
Thomas Renninger500de3dd2010-07-29 22:30:24 +020078 default n
Thomas Renninger1195a092010-07-16 13:11:31 +020079 help
80 Say N to disable Embedded Controller /sys/kernel/debug interface
81
Thomas Renninger500de3dd2010-07-29 22:30:24 +020082 Be aware that using this interface can confuse your Embedded
83 Controller in a way that a normal reboot is not enough. You then
Andrea Gelmini25cb1bf2010-08-18 15:22:10 +020084 have to power off your system, and remove the laptop battery for
Thomas Renninger500de3dd2010-07-29 22:30:24 +020085 some seconds.
Thomas Renninger1195a092010-07-16 13:11:31 +020086 An Embedded Controller typically is available on laptops and reads
87 sensor values like battery state and temperature.
Thomas Renninger500de3dd2010-07-29 22:30:24 +020088 The kernel accesses the EC through ACPI parsed code provided by BIOS
89 tables. This option allows to access the EC directly without ACPI
90 code being involved.
Thomas Renninger1195a092010-07-16 13:11:31 +020091 Thus this option is a debug option that helps to write ACPI drivers
92 and can be used to identify ACPI code or EC firmware bugs.
93
Len Brown14e04fb2007-08-23 15:20:26 -040094config ACPI_PROC_EVENT
95 bool "Deprecated /proc/acpi/event support"
96 depends on PROC_FS
Hugh Dickins721ebe02007-08-27 16:04:39 +010097 default y
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070098 help
99 A user-space daemon, acpid, typically reads /proc/acpi/event
100 and handles all ACPI-generated events.
Len Brown14e04fb2007-08-23 15:20:26 -0400101
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700102 These events are now delivered to user-space either
103 via the input layer or as netlink events.
Len Brown14e04fb2007-08-23 15:20:26 -0400104
Hugh Dickins721ebe02007-08-27 16:04:39 +0100105 This build option enables the old code for legacy
Len Brown14e04fb2007-08-23 15:20:26 -0400106 user-space implementation. After some time, this will
107 be moved under CONFIG_ACPI_PROCFS, and then deleted.
108
Hugh Dickins721ebe02007-08-27 16:04:39 +0100109 Say Y here to retain the old behaviour. Say N if your
110 user-space is newer than kernel 2.6.23 (September 2007).
111
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112config ACPI_AC
113 tristate "AC Adapter"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400114 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800115 select POWER_SUPPLY
Len Brown07fefe42005-08-25 12:22:04 -0400116 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700118 This driver supports the AC Adapter object, which indicates
119 whether a system is on AC or not. If you have a system that can
Len Brown07fefe42005-08-25 12:22:04 -0400120 switch between A/C and battery, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700122 To compile this driver as a module, choose M here:
123 the module will be called ac.
124
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125config ACPI_BATTERY
126 tristate "Battery"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400127 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800128 select POWER_SUPPLY
Len Brown07fefe42005-08-25 12:22:04 -0400129 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 help
131 This driver adds support for battery information through
132 /proc/acpi/battery. If you have a mobile system with a battery,
133 say Y.
134
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700135 To compile this driver as a module, choose M here:
136 the module will be called battery.
137
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138config ACPI_BUTTON
139 tristate "Button"
Dmitry Torokhovc0968f02006-11-09 00:40:13 -0500140 depends on INPUT
Len Brown07fefe42005-08-25 12:22:04 -0400141 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700143 This driver handles events on the power, sleep, and lid buttons.
Len Brown07fefe42005-08-25 12:22:04 -0400144 A daemon reads /proc/acpi/event and perform user-defined actions
145 such as shutting down the system. This is necessary for
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700146 software-controlled poweroff.
147
148 To compile this driver as a module, choose M here:
149 the module will be called button.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
151config ACPI_VIDEO
152 tristate "Video"
Luming Yu23b0f012007-05-09 21:07:05 +0800153 depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
Andreas Herrmann03e2bf22007-09-17 23:41:05 +0200154 depends on INPUT
Zhang Rui63c4ec92008-04-21 16:07:13 +0800155 select THERMAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700157 This driver implements the ACPI Extensions For Display Adapters
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 for integrated graphics devices on motherboard, as specified in
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700159 ACPI 2.0 Specification, Appendix B. This supports basic operations
160 such as defining the video POST device, retrieving EDID information,
161 and setting up a video output.
162
163 To compile this driver as a module, choose M here:
164 the module will be called video.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
166config ACPI_FAN
167 tristate "Fan"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800168 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400169 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700171 This driver supports ACPI fan devices, allowing user-mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172 applications to perform basic fan control (on, off, status).
173
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700174 To compile this driver as a module, choose M here:
175 the module will be called fan.
176
Len Brownc8f7a622006-07-09 17:22:28 -0400177config ACPI_DOCK
Shaohua Li898b0542008-09-27 11:10:28 +0800178 bool "Dock"
Len Brownc8f7a622006-07-09 17:22:28 -0400179 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700180 This driver supports ACPI-controlled docking stations and removable
181 drive bays such as the IBM Ultrabay and the Dell Module Bay.
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700182
Mika Westerberg907ddf82012-11-23 12:23:40 +0100183config ACPI_I2C
184 def_tristate I2C
185 depends on I2C
186 help
187 ACPI I2C enumeration support.
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189config ACPI_PROCESSOR
190 tristate "Processor"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800191 select THERMAL
Jean Delvarea4084c12010-10-10 14:54:52 +0200192 select CPU_IDLE
Len Brown07fefe42005-08-25 12:22:04 -0400193 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700195 This driver installs ACPI as the idle handler for Linux and uses
196 ACPI C2 and C3 processor states to save power on systems that
Len Brown07fefe42005-08-25 12:22:04 -0400197 support it. It is required by several flavors of cpufreq
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700198 performance-state drivers.
199
200 To compile this driver as a module, choose M here:
201 the module will be called processor.
Zhao Yakuie92b2972010-12-08 10:10:18 +0800202config ACPI_IPMI
203 tristate "IPMI"
Kees Cookf756f282013-01-16 18:53:28 -0800204 depends on IPMI_SI && IPMI_HANDLER
Zhao Yakuie92b2972010-12-08 10:10:18 +0800205 default n
206 help
207 This driver enables the ACPI to access the BMC controller. And it
208 uses the IPMI request/response message to communicate with BMC
209 controller, which can be found on on the server.
210
211 To compile this driver as a module, choose M here:
212 the module will be called as acpi_ipmi.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213
214config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400215 bool
Kees Cookf756f282013-01-16 18:53:28 -0800216 depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400218 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219
Shaohua Li8e0af512009-07-27 18:11:02 -0400220config ACPI_PROCESSOR_AGGREGATOR
221 tristate "Processor Aggregator"
222 depends on ACPI_PROCESSOR
Len Brownd91f79e2009-09-27 02:35:55 -0400223 depends on X86
Shaohua Li8e0af512009-07-27 18:11:02 -0400224 help
225 ACPI 4.0 defines processor Aggregator, which enables OS to perform
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200226 specific processor configuration and control that applies to all
Shaohua Li8e0af512009-07-27 18:11:02 -0400227 processors in the platform. Currently only logical processor idling
228 is defined, which is to reduce power consumption. This driver
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200229 supports the new device.
Shaohua Li8e0af512009-07-27 18:11:02 -0400230
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231config ACPI_THERMAL
232 tristate "Thermal Zone"
233 depends on ACPI_PROCESSOR
Zhang Rui3f655ef2008-01-17 15:51:11 +0800234 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400235 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700237 This driver supports ACPI thermal zones. Most mobile and
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 some desktop systems support ACPI thermal zones. It is HIGHLY
239 recommended that this option be enabled, as your processor(s)
240 may be damaged without it.
241
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700242 To compile this driver as a module, choose M here:
243 the module will be called thermal.
244
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245config ACPI_NUMA
246 bool "NUMA support"
247 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700248 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 default y if IA64_GENERIC || IA64_SGI_SN2
250
Randy Dunlap7ce95732008-02-22 11:25:04 -0800251config ACPI_CUSTOM_DSDT_FILE
252 string "Custom DSDT Table file to include"
253 default ""
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 depends on !STANDALONE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 help
Len Brownd89e9d62008-02-06 19:28:02 -0500256 This option supports a custom DSDT by linking it into the kernel.
257 See Documentation/acpi/dsdt-override.txt
258
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100259 Enter the full path name to the file which includes the AmlCode
260 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
Randy Dunlap7ce95732008-02-22 11:25:04 -0800262 If unsure, don't enter a file name.
263
264config ACPI_CUSTOM_DSDT
265 bool
266 default ACPI_CUSTOM_DSDT_FILE != ""
267
Thomas Renninger53aac442012-10-01 00:23:54 +0200268config ACPI_INITRD_TABLE_OVERRIDE
Thomas Renninger565d9562013-02-22 14:12:22 +0100269 bool "ACPI tables override via initrd"
270 depends on BLK_DEV_INITRD && X86
Thomas Renninger53aac442012-10-01 00:23:54 +0200271 default n
272 help
273 This option provides functionality to override arbitrary ACPI tables
274 via initrd. No functional change if no ACPI tables are passed via
275 initrd, therefore it's safe to say Y.
276 See Documentation/acpi/initrd_table_override.txt for details
277
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278config ACPI_BLACKLIST_YEAR
Andi Kleen2eb1bdb2006-02-26 04:18:43 +0100279 int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 default 0
281 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700282 Enter a 4-digit year, e.g., 2001, to disable ACPI by default
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 on platforms with DMI BIOS date before January 1st that year.
284 "acpi=force" can be used to override this mechanism.
285
286 Enter 0 to disable this mechanism and allow ACPI to
287 run by default no matter what the year. (default)
288
289config ACPI_DEBUG
290 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 default n
292 help
Bjorn Helgaasa0d84a92008-11-07 16:58:05 -0700293 The ACPI subsystem can produce debug output. Saying Y enables this
294 output and increases the kernel size by around 50K.
295
296 Use the acpi.debug_layer and acpi.debug_level kernel command-line
297 parameters documented in Documentation/acpi/debug.txt and
298 Documentation/kernel-parameters.txt to control the type and
299 amount of debug output.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
Thomas Renninger798d91032007-05-31 17:20:39 +0200301config ACPI_DEBUG_FUNC_TRACE
302 bool "Additionally enable ACPI function tracing"
303 default n
304 depends on ACPI_DEBUG
305 help
306 ACPI Debug Statements slow down ACPI processing. Function trace
307 is about half of the penalty and is rarely useful.
308
Alex Chiang8344b562008-06-10 15:30:42 -0600309config ACPI_PCI_SLOT
Jiang Liuab1a2e02013-01-19 00:07:42 +0800310 bool "PCI slot detection driver"
Alex Chiang268a03a2009-06-17 19:03:57 -0600311 depends on SYSFS
Alex Chiang8344b562008-06-10 15:30:42 -0600312 default n
313 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700314 This driver creates entries in /sys/bus/pci/slots/ for all PCI
315 slots in the system. This can help correlate PCI bus addresses,
316 i.e., segment/bus/device/function tuples, with physical slots in
317 the system. If you are unsure, say N.
318
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319config X86_PM_TIMER
David Rientjes6a108a12011-01-20 14:44:16 -0800320 bool "Power Management Timer Support" if EXPERT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400322 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 help
324 The Power Management Timer is available on all ACPI-capable,
325 in most cases even if ACPI is unusable or blacklisted.
326
Matt LaPlantec73a6682006-10-03 22:24:43 +0200327 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 like aggressive processor idling, throttling, frequency and/or
329 voltage scaling, unlike the commonly used Time Stamp Counter
330 (TSC) timing source.
331
Andi Kleene78256b2006-02-26 04:18:37 +0100332 You should nearly always say Y here because many modern
333 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334
335config ACPI_CONTAINER
Linus Torvalds06991c22013-02-21 12:05:51 -0800336 bool "Container and Module Devices"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700338 help
339 This driver supports ACPI Container and Module devices (IDs
340 ACPI0004, PNP0A05, and PNP0A06).
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500341
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700342 This helps support hotplug of nodes, CPUs, and memory.
343
344 To compile this driver as a module, choose M here:
345 the module will be called container.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347config ACPI_HOTPLUG_MEMORY
348 tristate "Memory Hotplug"
Yasunori Gotobc02af92006-06-27 02:53:30 -0700349 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 default n
351 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700352 This driver supports ACPI memory hotplug. The driver
353 fields notifications on ACPI memory devices (PNP0C80),
354 which represent memory ranges that may be onlined or
355 offlined during runtime.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700357 If your hardware and firmware do not support adding or
358 removing memory devices at runtime, you need not enable
359 this driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700361 To compile this driver as a module, choose M here:
362 the module will be called acpi_memhotplug.
Rich Townsend3f86b832006-07-01 11:36:54 -0400363
364config ACPI_SBS
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400365 tristate "Smart Battery System"
Vladimir Lebedevb4150fc2007-03-19 17:45:50 +0300366 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800367 select POWER_SUPPLY
Rich Townsend3f86b832006-07-01 11:36:54 -0400368 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700369 This driver supports the Smart Battery System, another
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400370 type of access to battery information, found on some laptops.
Rich Townsend3f86b832006-07-01 11:36:54 -0400371
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700372 To compile this driver as a module, choose M here:
373 the modules will be called sbs and sbshc.
374
Huang Ying801eab82010-05-18 14:35:17 +0800375config ACPI_HED
376 tristate "Hardware Error Device"
377 help
378 This driver supports the Hardware Error Device (PNP0C33),
379 which is used to report some hardware errors notified via
380 SCI, mainly the corrected errors.
381
Thomas Renninger526b4af2011-05-26 12:26:24 +0200382config ACPI_CUSTOM_METHOD
383 tristate "Allow ACPI methods to be inserted/replaced at run time"
384 depends on DEBUG_FS
385 default n
386 help
Justin P. Mattockbd1b2a52012-01-03 08:49:48 -0800387 This debug facility allows ACPI AML methods to be inserted and/or
Thomas Renninger526b4af2011-05-26 12:26:24 +0200388 replaced without rebooting the system. For details refer to:
389 Documentation/acpi/method-customizing.txt.
390
391 NOTE: This option is security sensitive, because it allows arbitrary
392 kernel memory to be written to by root (uid=0) users, allowing them
393 to bypass certain security measures (e.g. if root is not allowed to
394 load additional kernel modules after boot, this feature may be used
395 to override that restriction).
396
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500397config ACPI_BGRT
Josh Triplett2223af32012-09-28 17:57:05 -0700398 bool "Boottime Graphics Resource Table support"
399 depends on EFI
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500400 help
401 This driver adds support for exposing the ACPI Boottime Graphics
402 Resource Table, which allows the operating system to obtain
403 data from the firmware boot splash. It will appear under
404 /sys/firmware/acpi/bgrt/ .
405
Huang Yinga643ce22010-05-18 14:35:12 +0800406source "drivers/acpi/apei/Kconfig"
407
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408endif # ACPI