drivers/platform/x86/Kconfig

   1 #
   2 # X86 Platform Specific Drivers
   3 #
   4
   5 menuconfig X86_PLATFORM_DEVICES
   6         bool "X86 Platform Specific Device Drivers"
   7         default y
   8         depends on X86
   9         ---help---
  10           Say Y here to get to see options for device drivers for various
  11           x86 platforms, including vendor-specific laptop extension drivers.
  12           This option alone does not add any kernel code.
  13
  14           If you say N, all options in this submenu will be skipped and disabled.
  15
  16 if X86_PLATFORM_DEVICES
  17
  18 config ACER_WMI
  19         tristate "Acer WMI Laptop Extras"
  20         depends on ACPI
  21         depends on LEDS_CLASS
  22         depends on NEW_LEDS
  23         depends on BACKLIGHT_CLASS_DEVICE
  24         depends on SERIO_I8042
  25         depends on INPUT
  26         depends on RFKILL || RFKILL = n
  27         depends on ACPI_WMI
  28         select INPUT_SPARSEKMAP
  29         ---help---
  30           This is a driver for newer Acer (and Wistron) laptops. It adds
  31           wireless radio and bluetooth control, and on some laptops,
  32           exposes the mail LED and LCD backlight.
  33
  34           For more information about this driver see
  35           <file:Documentation/laptops/acer-wmi.txt>
  36
  37           If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
  38           here.
  39
  40 config ACERHDF
  41         tristate "Acer Aspire One temperature and fan driver"
  42         depends on THERMAL && THERMAL_HWMON && ACPI
  43         ---help---
  44           This is a driver for Acer Aspire One netbooks. It allows to access
  45           the temperature sensor and to control the fan.
  46
  47           After loading this driver the BIOS is still in control of the fan.
  48           To let the kernel handle the fan, do:
  49           echo -n enabled > /sys/class/thermal/thermal_zone0/mode
  50
  51           For more information about this driver see
  52           <http://piie.net/files/acerhdf_README.txt>
  53
  54           If you have an Acer Aspire One netbook, say Y or M
  55           here.
  56
  57 config ASUS_LAPTOP
  58         tristate "Asus Laptop Extras"
  59         depends on ACPI
  60         depends on !ACPI_ASUS
  61         select LEDS_CLASS
  62         select NEW_LEDS
  63         select BACKLIGHT_CLASS_DEVICE
  64         depends on INPUT
  65         depends on RFKILL || RFKILL = n
  66         select INPUT_SPARSEKMAP
  67         ---help---
  68           This is the new Linux driver for Asus laptops. It may also support some
  69           MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate
  70           standard ACPI events and input events. It also adds
  71           support for video output switching, LCD backlight control, Bluetooth and
  72           Wlan control, and most importantly, allows you to blink those fancy LEDs.
  73
  74           For more information and a userspace daemon for handling the extra
  75           buttons see <http://acpi4asus.sf.net>.
  76
  77           If you have an ACPI-compatible ASUS laptop, say Y or M here.
  78
  79 config DELL_LAPTOP
  80         tristate "Dell Laptop Extras (EXPERIMENTAL)"
  81         depends on X86
  82         depends on DCDBAS
  83         depends on EXPERIMENTAL
  84         depends on BACKLIGHT_CLASS_DEVICE
  85         depends on RFKILL || RFKILL = n
  86         depends on POWER_SUPPLY
  87         depends on SERIO_I8042
  88         default n
  89         ---help---
  90         This driver adds support for rfkill and backlight control to Dell
  91         laptops.
  92
  93 config DELL_WMI
  94         tristate "Dell WMI extras"
  95         depends on ACPI_WMI
  96         depends on INPUT
  97         select INPUT_SPARSEKMAP
  98         ---help---
  99           Say Y here if you want to support WMI-based hotkeys on Dell laptops.
 100
 101           To compile this driver as a module, choose M here: the module will
 102           be called dell-wmi.
 103
 104 config FUJITSU_LAPTOP
 105         tristate "Fujitsu Laptop Extras"
 106         depends on ACPI
 107         depends on INPUT
 108         depends on BACKLIGHT_CLASS_DEVICE
 109         depends on LEDS_CLASS || LEDS_CLASS=n
 110         ---help---
 111           This is a driver for laptops built by Fujitsu:
 112
 113             * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks
 114             * Possibly other Fujitsu laptop models
 115             * Tested with S6410 and S7020
 116
 117           It adds support for LCD brightness control and some hotkeys.
 118
 119           If you have a Fujitsu laptop, say Y or M here.
 120
 121 config FUJITSU_LAPTOP_DEBUG
 122         bool "Verbose debug mode for Fujitsu Laptop Extras"
 123         depends on FUJITSU_LAPTOP
 124         default n
 125         ---help---
 126           Enables extra debug output from the fujitsu extras driver, at the
 127           expense of a slight increase in driver size.
 128
 129           If you are not sure, say N here.
 130
 131 config TC1100_WMI
 132         tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
 133         depends on !X86_64
 134         depends on EXPERIMENTAL
 135         depends on ACPI
 136         depends on ACPI_WMI
 137         ---help---
 138           This is a driver for the WMI extensions (wireless and bluetooth power
 139           control) of the HP Compaq TC1100 tablet.
 140
 141 config HP_WMI
 142         tristate "HP WMI extras"
 143         depends on ACPI_WMI
 144         depends on INPUT
 145         depends on RFKILL || RFKILL = n
 146         select INPUT_SPARSEKMAP
 147         help
 148          Say Y here if you want to support WMI-based hotkeys on HP laptops and
 149          to read data from WMI such as docking or ambient light sensor state.
 150
 151          To compile this driver as a module, choose M here: the module will
 152          be called hp-wmi.
 153
 154 config MSI_LAPTOP
 155         tristate "MSI Laptop Extras"
 156         depends on ACPI
 157         depends on BACKLIGHT_CLASS_DEVICE
 158         depends on RFKILL
 159         depends on SERIO_I8042
 160         ---help---
 161           This is a driver for laptops built by MSI (MICRO-STAR
 162           INTERNATIONAL):
 163
 164           MSI MegaBook S270 (MS-1013)
 165           Cytron/TCM/Medion/Tchibo MD96100/SAM2000
 166
 167           It adds support for Bluetooth, WLAN and LCD brightness control.
 168
 169           More information about this driver is available at
 170           <http://0pointer.de/lennart/tchibo.html>.
 171
 172           If you have an MSI S270 laptop, say Y or M here.
 173
 174 config PANASONIC_LAPTOP
 175         tristate "Panasonic Laptop Extras"
 176         depends on INPUT && ACPI
 177         depends on BACKLIGHT_CLASS_DEVICE
 178         select INPUT_SPARSEKMAP
 179         ---help---
 180           This driver adds support for access to backlight control and hotkeys
 181           on Panasonic Let's Note laptops.
 182
 183           If you have a Panasonic Let's note laptop (such as the R1(N variant),
 184           R2, R3, R5, T2, W2 and Y2 series), say Y.
 185
 186 config COMPAL_LAPTOP
 187         tristate "Compal Laptop Extras"
 188         depends on ACPI
 189         depends on BACKLIGHT_CLASS_DEVICE
 190         depends on RFKILL
 191         depends on HWMON
 192         depends on POWER_SUPPLY
 193         ---help---
 194           This is a driver for laptops built by Compal:
 195
 196           Compal FL90/IFL90
 197           Compal FL91/IFL91
 198           Compal FL92/JFL92
 199           Compal FT00/IFT00
 200
 201           It adds support for Bluetooth, WLAN and LCD brightness control.
 202
 203           If you have an Compal FL9x/IFL9x/FT00 laptop, say Y or M here.
 204
 205 config SONY_LAPTOP
 206         tristate "Sony Laptop Extras"
 207         depends on ACPI
 208         select BACKLIGHT_CLASS_DEVICE
 209         depends on INPUT
 210         depends on RFKILL
 211           ---help---
 212           This mini-driver drives the SNC and SPIC devices present in the ACPI
 213           BIOS of the Sony Vaio laptops.
 214
 215           It gives access to some extra laptop functionalities like Bluetooth,
 216           screen brightness control, Fn keys and allows powering on/off some
 217           devices.
 218
 219           Read <file:Documentation/laptops/sony-laptop.txt> for more information.
 220
 221 config SONYPI_COMPAT
 222         bool "Sonypi compatibility"
 223         depends on SONY_LAPTOP
 224           ---help---
 225           Build the sonypi driver compatibility code into the sony-laptop driver.
 226
 227 config IDEAPAD_LAPTOP
 228         tristate "Lenovo IdeaPad Laptop Extras"
 229         depends on ACPI
 230         depends on RFKILL
 231         select INPUT_SPARSEKMAP
 232         help
 233           This is a driver for the rfkill switches on Lenovo IdeaPad netbooks.
 234
 235 config THINKPAD_ACPI
 236         tristate "ThinkPad ACPI Laptop Extras"
 237         depends on ACPI
 238         depends on INPUT
 239         depends on RFKILL || RFKILL = n
 240         select BACKLIGHT_LCD_SUPPORT
 241         select BACKLIGHT_CLASS_DEVICE
 242         select HWMON
 243         select NVRAM
 244         select NEW_LEDS
 245         select LEDS_CLASS
 246         ---help---
 247           This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
 248           support for Fn-Fx key combinations, Bluetooth control, video
 249           output switching, ThinkLight control, UltraBay eject and more.
 250           For more information about this driver see
 251           <file:Documentation/laptops/thinkpad-acpi.txt> and
 252           <http://ibm-acpi.sf.net/> .
 253
 254           This driver was formerly known as ibm-acpi.
 255
 256           Extra functionality will be available if the rfkill (CONFIG_RFKILL)
 257           and/or ALSA (CONFIG_SND) subsystems are available in the kernel.
 258           Note that if you want ThinkPad-ACPI to be built-in instead of
 259           modular, ALSA and rfkill will also have to be built-in.
 260
 261           If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
 262
 263 config THINKPAD_ACPI_ALSA_SUPPORT
 264         bool "Console audio control ALSA interface"
 265         depends on THINKPAD_ACPI
 266         depends on SND
 267         depends on SND = y || THINKPAD_ACPI = SND
 268         default y
 269         ---help---
 270           Enables monitoring of the built-in console audio output control
 271           (headphone and speakers), which is operated by the mute and (in
 272           some ThinkPad models) volume hotkeys.
 273
 274           If this option is enabled, ThinkPad-ACPI will export an ALSA card
 275           with a single read-only mixer control, which should be used for
 276           on-screen-display feedback purposes by the Desktop Environment.
 277
 278           Optionally, the driver will also allow software control (the
 279           ALSA mixer will be made read-write).  Please refer to the driver
 280           documentation for details.
 281
 282           All IBM models have both volume and mute control.  Newer Lenovo
 283           models only have mute control (the volume hotkeys are just normal
 284           keys and volume control is done through the main HDA mixer).
 285
 286 config THINKPAD_ACPI_DEBUGFACILITIES
 287         bool "Maintainer debug facilities"
 288         depends on THINKPAD_ACPI
 289         default n
 290         ---help---
 291           Enables extra stuff in the thinkpad-acpi which is completely useless
 292           for normal use.  Read the driver source to find out what it does.
 293
 294           Say N here, unless you were told by a kernel maintainer to do
 295           otherwise.
 296
 297 config THINKPAD_ACPI_DEBUG
 298         bool "Verbose debug mode"
 299         depends on THINKPAD_ACPI
 300         default n
 301         ---help---
 302           Enables extra debugging information, at the expense of a slightly
 303           increase in driver size.
 304
 305           If you are not sure, say N here.
 306
 307 config THINKPAD_ACPI_UNSAFE_LEDS
 308         bool "Allow control of important LEDs (unsafe)"
 309         depends on THINKPAD_ACPI
 310         default n
 311         ---help---
 312           Overriding LED state on ThinkPads can mask important
 313           firmware alerts (like critical battery condition), or misled
 314           the user into damaging the hardware (undocking or ejecting
 315           the bay while buses are still active), etc.
 316
 317           LED control on the ThinkPad is write-only (with very few
 318           exceptions on very ancient models), which makes it
 319           impossible to know beforehand if important information will
 320           be lost when one changes LED state.
 321
 322           Users that know what they are doing can enable this option
 323           and the driver will allow control of every LED, including
 324           the ones on the dock stations.
 325
 326           Never enable this option on a distribution kernel.
 327
 328           Say N here, unless you are building a kernel for your own
 329           use, and need to control the important firmware LEDs.
 330
 331 config THINKPAD_ACPI_VIDEO
 332         bool "Video output control support"
 333         depends on THINKPAD_ACPI
 334         default y
 335         ---help---
 336           Allows the thinkpad_acpi driver to provide an interface to control
 337           the various video output ports.
 338
 339           This feature often won't work well, depending on ThinkPad model,
 340           display state, video output devices in use, whether there is a X
 341           server running, phase of the moon, and the current mood of
 342           Schroedinger's cat.  If you can use X.org's RandR to control
 343           your ThinkPad's video output ports instead of this feature,
 344           don't think twice: do it and say N here to save memory and avoid
 345           bad interactions with X.org.
 346
 347           NOTE: access to this feature is limited to processes with the
 348           CAP_SYS_ADMIN capability, to avoid local DoS issues in platforms
 349           where it interacts badly with X.org.
 350
 351           If you are not sure, say Y here but do try to check if you could
 352           be using X.org RandR instead.
 353
 354 config THINKPAD_ACPI_HOTKEY_POLL
 355         bool "Support NVRAM polling for hot keys"
 356         depends on THINKPAD_ACPI
 357         default y
 358         ---help---
 359           Some thinkpad models benefit from NVRAM polling to detect a few of
 360           the hot key press events.  If you know your ThinkPad model does not
 361           need to do NVRAM polling to support any of the hot keys you use,
 362           unselecting this option will save about 1kB of memory.
 363
 364           ThinkPads T40 and newer, R52 and newer, and X31 and newer are
 365           unlikely to need NVRAM polling in their latest BIOS versions.
 366
 367           NVRAM polling can detect at most the following keys: ThinkPad/Access
 368           IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute,
 369           Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12).
 370
 371           If you are not sure, say Y here.  The driver enables polling only if
 372           it is strictly necessary to do so.
 373
 374 config SENSORS_HDAPS
 375         tristate "Thinkpad Hard Drive Active Protection System (hdaps)"
 376         depends on INPUT && X86
 377         select INPUT_POLLDEV
 378         default n
 379         help
 380           This driver provides support for the IBM Hard Drive Active Protection
 381           System (hdaps), which provides an accelerometer and other misc. data.
 382           ThinkPads starting with the R50, T41, and X40 are supported.  The
 383           accelerometer data is readable via sysfs.
 384
 385           This driver also provides an absolute input class device, allowing
 386           the laptop to act as a pinball machine-esque joystick.
 387
 388           If your ThinkPad is not recognized by the driver, please update to latest
 389           BIOS. This is especially the case for some R52 ThinkPads.
 390
 391           Say Y here if you have an applicable laptop and want to experience
 392           the awesome power of hdaps.
 393
 394 config INTEL_MENLOW
 395         tristate "Thermal Management driver for Intel menlow platform"
 396         depends on ACPI_THERMAL
 397         select THERMAL
 398         ---help---
 399           ACPI thermal management enhancement driver on
 400           Intel Menlow platform.
 401
 402           If unsure, say N.
 403
 404 config EEEPC_LAPTOP
 405         tristate "Eee PC Hotkey Driver (EXPERIMENTAL)"
 406         depends on ACPI
 407         depends on INPUT
 408         depends on EXPERIMENTAL
 409         depends on RFKILL || RFKILL = n
 410         depends on HOTPLUG_PCI
 411         select BACKLIGHT_CLASS_DEVICE
 412         select HWMON
 413         select LEDS_CLASS
 414         select NEW_LEDS
 415         select INPUT_SPARSEKMAP
 416         ---help---
 417           This driver supports the Fn-Fx keys on Eee PC laptops.
 418
 419           It  also gives access to some extra laptop functionalities like
 420           Bluetooth, backlight and allows powering on/off some other
 421           devices.
 422
 423           If you have an Eee PC laptop, say Y or M here.
 424
 425 config EEEPC_WMI
 426         tristate "Eee PC WMI Hotkey Driver (EXPERIMENTAL)"
 427         depends on ACPI_WMI
 428         depends on INPUT
 429         depends on EXPERIMENTAL
 430         depends on BACKLIGHT_CLASS_DEVICE
 431         depends on RFKILL || RFKILL = n
 432         select INPUT_SPARSEKMAP
 433         select LEDS_CLASS
 434         select NEW_LEDS
 435         ---help---
 436           Say Y here if you want to support WMI-based hotkeys on Eee PC laptops.
 437
 438           To compile this driver as a module, choose M here: the module will
 439           be called eeepc-wmi.
 440
 441 config ACPI_WMI
 442         tristate "WMI"
 443         depends on ACPI
 444         help
 445           This driver adds support for the ACPI-WMI (Windows Management
 446           Instrumentation) mapper device (PNP0C14) found on some systems.
 447
 448           ACPI-WMI is a proprietary extension to ACPI to expose parts of the
 449           ACPI firmware to userspace - this is done through various vendor
 450           defined methods and data blocks in a PNP0C14 device, which are then
 451           made available for userspace to call.
 452
 453           The implementation of this in Linux currently only exposes this to
 454           other kernel space drivers.
 455
 456           This driver is a required dependency to build the firmware specific
 457           drivers needed on many machines, including Acer and HP laptops.
 458
 459           It is safe to enable this driver even if your DSDT doesn't define
 460           any ACPI-WMI devices.
 461
 462 config MSI_WMI
 463         tristate "MSI WMI extras"
 464         depends on ACPI_WMI
 465         depends on INPUT
 466         depends on BACKLIGHT_CLASS_DEVICE
 467         select INPUT_SPARSEKMAP
 468         help
 469          Say Y here if you want to support WMI-based hotkeys on MSI laptops.
 470
 471          To compile this driver as a module, choose M here: the module will
 472          be called msi-wmi.
 473
 474 config ACPI_ASUS
 475         tristate "ASUS/Medion Laptop Extras (DEPRECATED)"
 476         depends on ACPI
 477         select BACKLIGHT_CLASS_DEVICE
 478         ---help---
 479           This driver provides support for extra features of ACPI-compatible
 480           ASUS laptops. As some of Medion laptops are made by ASUS, it may also
 481           support some Medion laptops (such as 9675 for example).  It makes all
 482           the extra buttons generate standard ACPI events that go through
 483           /proc/acpi/events, and (on some models) adds support for changing the
 484           display brightness and output, switching the LCD backlight on and off,
 485           and most importantly, allows you to blink those fancy LEDs intended
 486           for reporting mail and wireless status.
 487
 488           Note: display switching code is currently considered EXPERIMENTAL,
 489           toying with these values may even lock your machine.
 490
 491           All settings are changed via /proc/acpi/asus directory entries. Owner
 492           and group for these entries can be set with asus_uid and asus_gid
 493           parameters.
 494
 495           More information and a userspace daemon for handling the extra buttons
 496           at <http://acpi4asus.sf.net>.
 497
 498           If you have an ACPI-compatible ASUS laptop, say Y or M here. This
 499           driver is still under development, so if your laptop is unsupported or
 500           something works not quite as expected, please use the mailing list
 501           available on the above page (acpi4asus-user@lists.sourceforge.net).
 502
 503           NOTE: This driver is deprecated and will probably be removed soon,
 504           use asus-laptop instead.
 505
 506 config TOPSTAR_LAPTOP
 507         tristate "Topstar Laptop Extras"
 508         depends on ACPI
 509         depends on INPUT
 510         select INPUT_SPARSEKMAP
 511         ---help---
 512           This driver adds support for hotkeys found on Topstar laptops.
 513
 514           If you have a Topstar laptop, say Y or M here.
 515
 516 config ACPI_TOSHIBA
 517         tristate "Toshiba Laptop Extras"
 518         depends on ACPI
 519         depends on LEDS_CLASS
 520         depends on NEW_LEDS
 521         depends on BACKLIGHT_CLASS_DEVICE
 522         depends on INPUT
 523         depends on RFKILL || RFKILL = n
 524         select INPUT_POLLDEV
 525         select INPUT_SPARSEKMAP
 526         ---help---
 527           This driver adds support for access to certain system settings
 528           on "legacy free" Toshiba laptops.  These laptops can be recognized by
 529           their lack of a BIOS setup menu and APM support.
 530
 531           On these machines, all system configuration is handled through the
 532           ACPI.  This driver is required for access to controls not covered
 533           by the general ACPI drivers, such as LCD brightness, video output,
 534           etc.
 535
 536           This driver differs from the non-ACPI Toshiba laptop driver (located
 537           under "Processor type and features") in several aspects.
 538           Configuration is accessed by reading and writing text files in the
 539           /proc tree instead of by program interface to /dev.  Furthermore, no
 540           power management functions are exposed, as those are handled by the
 541           general ACPI drivers.
 542
 543           More information about this driver is available at
 544           <http://memebeam.org/toys/ToshibaAcpiDriver>.
 545
 546           If you have a legacy free Toshiba laptop (such as the Libretto L1
 547           series), say Y.
 548
 549 config TOSHIBA_BT_RFKILL
 550         tristate "Toshiba Bluetooth RFKill switch support"
 551         depends on ACPI
 552         ---help---
 553           This driver adds support for Bluetooth events for the RFKill
 554           switch on modern Toshiba laptops with full ACPI support and
 555           an RFKill switch.
 556
 557           This driver handles RFKill events for the TOS6205 Bluetooth,
 558           and re-enables it when the switch is set back to the 'on'
 559           position.
 560
 561           If you have a modern Toshiba laptop with a Bluetooth and an
 562           RFKill switch (such as the Portege R500), say Y.
 563
 564 config ACPI_CMPC
 565         tristate "CMPC Laptop Extras"
 566         depends on X86 && ACPI
 567         depends on RFKILL || RFKILL=n
 568         select INPUT
 569         select BACKLIGHT_CLASS_DEVICE
 570         default n
 571         help
 572           Support for Intel Classmate PC ACPI devices, including some
 573           keys as input device, backlight device, tablet and accelerometer
 574           devices.
 575
 576 config INTEL_SCU_IPC
 577         bool "Intel SCU IPC Support"
 578         depends on X86_MRST
 579         default y
 580         ---help---
 581           IPC is used to bridge the communications between kernel and SCU on
 582           some embedded Intel x86 platforms. This is not needed for PC-type
 583           machines.
 584
 585 config INTEL_SCU_IPC_UTIL
 586         tristate "Intel SCU IPC utility driver"
 587         depends on INTEL_SCU_IPC
 588         default y
 589         ---help---
 590           The IPC Util driver provides an interface with the SCU enabling
 591           low level access for debug work and updating the firmware. Say
 592           N unless you will be doing this on an Intel MID platform.
 593
 594 config GPIO_INTEL_PMIC
 595         bool "Intel PMIC GPIO support"
 596         depends on INTEL_SCU_IPC && GPIOLIB
 597         ---help---
 598           Say Y here to support GPIO via the SCU IPC interface
 599           on Intel MID platforms.
 600
 601 config RAR_REGISTER
 602         bool "Restricted Access Region Register Driver"
 603         depends on PCI && X86_MRST
 604         default n
 605         ---help---
 606           This driver allows other kernel drivers access to the
 607           contents of the restricted access region control registers.
 608
 609           The restricted access region control registers
 610           (rar_registers) are used to pass address and
 611           locking information on restricted access regions
 612           to other drivers that use restricted access regions.
 613
 614           The restricted access regions are regions of memory
 615           on the Intel MID Platform that are not accessible to
 616           the x86 processor, but are accessible to dedicated
 617           processors on board peripheral devices.
 618
 619           The purpose of the restricted access regions is to
 620           protect sensitive data from compromise by unauthorized
 621           programs running on the x86 processor.
 622
 623 config INTEL_IPS
 624         tristate "Intel Intelligent Power Sharing"
 625         depends on ACPI
 626         ---help---
 627           Intel Calpella platforms support dynamic power sharing between the
 628           CPU and GPU, maximizing performance in a given TDP.  This driver,
 629           along with the CPU frequency and i915 drivers, provides that
 630           functionality.  If in doubt, say Y here; it will only load on
 631           supported platforms.
 632
 633 config IBM_RTL
 634         tristate "Device driver to enable PRTL support"
 635         depends on X86 && PCI
 636         ---help---
 637          Enable support for IBM Premium Real Time Mode (PRTM).
 638          This module will allow you the enter and exit PRTM in the BIOS via
 639          sysfs on platforms that support this feature.  System in PRTM will
 640          not receive CPU-generated SMIs for recoverable errors.  Use of this
 641          feature without proper support may void your hardware warranty.
 642
 643          If the proper BIOS support is found the driver will load and create
 644          /sys/devices/system/ibm_rtl/.  The "state" variable will indicate
 645          whether or not the BIOS is in PRTM.
 646          state = 0 (BIOS SMIs on)
 647          state = 1 (BIOS SMIs off)
 648
 649 config XO1_RFKILL
 650         tristate "OLPC XO-1 software RF kill switch"
 651         depends on OLPC
 652         depends on RFKILL
 653         ---help---
 654           Support for enabling/disabling the WLAN interface on the OLPC XO-1
 655           laptop.
 656
 657 endif # X86_PLATFORM_DEVICES