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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 Brown8d7bff62006-07-09 22:09:57 -0400179 depends on EXPERIMENTAL
Len Brownc8f7a622006-07-09 17:22:28 -0400180 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700181 This driver supports ACPI-controlled docking stations and removable
182 drive bays such as the IBM Ultrabay and the Dell Module Bay.
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700183
Mika Westerberg907ddf82012-11-23 12:23:40 +0100184config ACPI_I2C
185 def_tristate I2C
186 depends on I2C
187 help
188 ACPI I2C enumeration support.
189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190config ACPI_PROCESSOR
191 tristate "Processor"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800192 select THERMAL
Jean Delvarea4084c12010-10-10 14:54:52 +0200193 select CPU_IDLE
Len Brown07fefe42005-08-25 12:22:04 -0400194 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700196 This driver installs ACPI as the idle handler for Linux and uses
197 ACPI C2 and C3 processor states to save power on systems that
Len Brown07fefe42005-08-25 12:22:04 -0400198 support it. It is required by several flavors of cpufreq
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700199 performance-state drivers.
200
201 To compile this driver as a module, choose M here:
202 the module will be called processor.
Zhao Yakuie92b2972010-12-08 10:10:18 +0800203config ACPI_IPMI
204 tristate "IPMI"
205 depends on EXPERIMENTAL && IPMI_SI && IPMI_HANDLER
206 default n
207 help
208 This driver enables the ACPI to access the BMC controller. And it
209 uses the IPMI request/response message to communicate with BMC
210 controller, which can be found on on the server.
211
212 To compile this driver as a module, choose M here:
213 the module will be called as acpi_ipmi.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
215config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400216 bool
Fabio Estevam2f07a612012-01-05 10:47:58 -0200217 depends on EXPERIMENTAL && ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400219 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
Shaohua Li8e0af512009-07-27 18:11:02 -0400221config ACPI_PROCESSOR_AGGREGATOR
222 tristate "Processor Aggregator"
223 depends on ACPI_PROCESSOR
224 depends on EXPERIMENTAL
Len Brownd91f79e2009-09-27 02:35:55 -0400225 depends on X86
Shaohua Li8e0af512009-07-27 18:11:02 -0400226 help
227 ACPI 4.0 defines processor Aggregator, which enables OS to perform
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200228 specific processor configuration and control that applies to all
Shaohua Li8e0af512009-07-27 18:11:02 -0400229 processors in the platform. Currently only logical processor idling
230 is defined, which is to reduce power consumption. This driver
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200231 supports the new device.
Shaohua Li8e0af512009-07-27 18:11:02 -0400232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233config ACPI_THERMAL
234 tristate "Thermal Zone"
235 depends on ACPI_PROCESSOR
Zhang Rui3f655ef2008-01-17 15:51:11 +0800236 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400237 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700239 This driver supports ACPI thermal zones. Most mobile and
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 some desktop systems support ACPI thermal zones. It is HIGHLY
241 recommended that this option be enabled, as your processor(s)
242 may be damaged without it.
243
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700244 To compile this driver as a module, choose M here:
245 the module will be called thermal.
246
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247config ACPI_NUMA
248 bool "NUMA support"
249 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700250 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 default y if IA64_GENERIC || IA64_SGI_SN2
252
Randy Dunlap7ce95732008-02-22 11:25:04 -0800253config ACPI_CUSTOM_DSDT_FILE
254 string "Custom DSDT Table file to include"
255 default ""
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 depends on !STANDALONE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 help
Len Brownd89e9d62008-02-06 19:28:02 -0500258 This option supports a custom DSDT by linking it into the kernel.
259 See Documentation/acpi/dsdt-override.txt
260
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100261 Enter the full path name to the file which includes the AmlCode
262 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
Randy Dunlap7ce95732008-02-22 11:25:04 -0800264 If unsure, don't enter a file name.
265
266config ACPI_CUSTOM_DSDT
267 bool
268 default ACPI_CUSTOM_DSDT_FILE != ""
269
Thomas Renninger53aac442012-10-01 00:23:54 +0200270config ACPI_INITRD_TABLE_OVERRIDE
Thomas Renninger565d9562013-02-22 14:12:22 +0100271 bool "ACPI tables override via initrd"
272 depends on BLK_DEV_INITRD && X86
Thomas Renninger53aac442012-10-01 00:23:54 +0200273 default n
274 help
275 This option provides functionality to override arbitrary ACPI tables
276 via initrd. No functional change if no ACPI tables are passed via
277 initrd, therefore it's safe to say Y.
278 See Documentation/acpi/initrd_table_override.txt for details
279
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280config ACPI_BLACKLIST_YEAR
Andi Kleen2eb1bdb2006-02-26 04:18:43 +0100281 int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 default 0
283 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700284 Enter a 4-digit year, e.g., 2001, to disable ACPI by default
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 on platforms with DMI BIOS date before January 1st that year.
286 "acpi=force" can be used to override this mechanism.
287
288 Enter 0 to disable this mechanism and allow ACPI to
289 run by default no matter what the year. (default)
290
291config ACPI_DEBUG
292 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 default n
294 help
Bjorn Helgaasa0d84a92008-11-07 16:58:05 -0700295 The ACPI subsystem can produce debug output. Saying Y enables this
296 output and increases the kernel size by around 50K.
297
298 Use the acpi.debug_layer and acpi.debug_level kernel command-line
299 parameters documented in Documentation/acpi/debug.txt and
300 Documentation/kernel-parameters.txt to control the type and
301 amount of debug output.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
Thomas Renninger798d91032007-05-31 17:20:39 +0200303config ACPI_DEBUG_FUNC_TRACE
304 bool "Additionally enable ACPI function tracing"
305 default n
306 depends on ACPI_DEBUG
307 help
308 ACPI Debug Statements slow down ACPI processing. Function trace
309 is about half of the penalty and is rarely useful.
310
Alex Chiang8344b562008-06-10 15:30:42 -0600311config ACPI_PCI_SLOT
312 tristate "PCI slot detection driver"
Alex Chiang268a03a2009-06-17 19:03:57 -0600313 depends on SYSFS
Alex Chiang8344b562008-06-10 15:30:42 -0600314 default n
315 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700316 This driver creates entries in /sys/bus/pci/slots/ for all PCI
317 slots in the system. This can help correlate PCI bus addresses,
318 i.e., segment/bus/device/function tuples, with physical slots in
319 the system. If you are unsure, say N.
320
321 To compile this driver as a module, choose M here:
322 the module will be called pci_slot.
Alex Chiang8344b562008-06-10 15:30:42 -0600323
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324config X86_PM_TIMER
David Rientjes6a108a12011-01-20 14:44:16 -0800325 bool "Power Management Timer Support" if EXPERT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400327 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 help
329 The Power Management Timer is available on all ACPI-capable,
330 in most cases even if ACPI is unusable or blacklisted.
331
Matt LaPlantec73a6682006-10-03 22:24:43 +0200332 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 like aggressive processor idling, throttling, frequency and/or
334 voltage scaling, unlike the commonly used Time Stamp Counter
335 (TSC) timing source.
336
Andi Kleene78256b2006-02-26 04:18:37 +0100337 You should nearly always say Y here because many modern
338 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
340config ACPI_CONTAINER
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700341 tristate "Container and Module Devices (EXPERIMENTAL)"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 depends on EXPERIMENTAL
343 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700344 help
345 This driver supports ACPI Container and Module devices (IDs
346 ACPI0004, PNP0A05, and PNP0A06).
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500347
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700348 This helps support hotplug of nodes, CPUs, and memory.
349
350 To compile this driver as a module, choose M here:
351 the module will be called container.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352
353config ACPI_HOTPLUG_MEMORY
354 tristate "Memory Hotplug"
Yasunori Gotobc02af92006-06-27 02:53:30 -0700355 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356 default n
357 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700358 This driver supports ACPI memory hotplug. The driver
359 fields notifications on ACPI memory devices (PNP0C80),
360 which represent memory ranges that may be onlined or
361 offlined during runtime.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700363 If your hardware and firmware do not support adding or
364 removing memory devices at runtime, you need not enable
365 this driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700367 To compile this driver as a module, choose M here:
368 the module will be called acpi_memhotplug.
Rich Townsend3f86b832006-07-01 11:36:54 -0400369
370config ACPI_SBS
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400371 tristate "Smart Battery System"
Vladimir Lebedevb4150fc2007-03-19 17:45:50 +0300372 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800373 select POWER_SUPPLY
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
Thomas Renninger526b4af2011-05-26 12:26:24 +0200388config ACPI_CUSTOM_METHOD
389 tristate "Allow ACPI methods to be inserted/replaced at run time"
390 depends on DEBUG_FS
391 default n
392 help
Justin P. Mattockbd1b2a52012-01-03 08:49:48 -0800393 This debug facility allows ACPI AML methods to be inserted and/or
Thomas Renninger526b4af2011-05-26 12:26:24 +0200394 replaced without rebooting the system. For details refer to:
395 Documentation/acpi/method-customizing.txt.
396
397 NOTE: This option is security sensitive, because it allows arbitrary
398 kernel memory to be written to by root (uid=0) users, allowing them
399 to bypass certain security measures (e.g. if root is not allowed to
400 load additional kernel modules after boot, this feature may be used
401 to override that restriction).
402
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500403config ACPI_BGRT
Josh Triplett2223af32012-09-28 17:57:05 -0700404 bool "Boottime Graphics Resource Table support"
405 depends on EFI
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500406 help
407 This driver adds support for exposing the ACPI Boottime Graphics
408 Resource Table, which allows the operating system to obtain
409 data from the firmware boot splash. It will appear under
410 /sys/firmware/acpi/bgrt/ .
411
Huang Yinga643ce22010-05-18 14:35:12 +0800412source "drivers/acpi/apei/Kconfig"
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414endif # ACPI