drivers/platform/x86/Kconfig

#
# X86 Platform Specific Drivers
#

menuconfig X86_PLATFORM_DEVICES
	bool "X86 Platform Specific Device Drivers"
	default y
	depends on X86
	---help---
	  Say Y here to get to see options for device drivers for various
	  x86 platforms, including vendor-specific laptop extension drivers.
	  This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and disabled.

if X86_PLATFORM_DEVICES

config ACER_WMI
	tristate "Acer WMI Laptop Extras"
	depends on ACPI
	select LEDS_CLASS
	select NEW_LEDS
	depends on BACKLIGHT_CLASS_DEVICE
	depends on SERIO_I8042
	depends on INPUT
	depends on RFKILL || RFKILL = n
	depends on ACPI_WMI
	select INPUT_SPARSEKMAP
	---help---
	  This is a driver for newer Acer (and Wistron) laptops. It adds
	  wireless radio and bluetooth control, and on some laptops,
	  exposes the mail LED and LCD backlight.

	  For more information about this driver see
	  <file:Documentation/laptops/acer-wmi.txt>

	  If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
	  here.

config ACERHDF
	tristate "Acer Aspire One temperature and fan driver"
	depends on THERMAL && THERMAL_HWMON && ACPI
	---help---
	  This is a driver for Acer Aspire One netbooks. It allows to access
	  the temperature sensor and to control the fan.

	  After loading this driver the BIOS is still in control of the fan.
	  To let the kernel handle the fan, do:
	  echo -n enabled > /sys/class/thermal/thermal_zone0/mode

	  For more information about this driver see
	  <http://piie.net/files/acerhdf_README.txt>

	  If you have an Acer Aspire One netbook, say Y or M
	  here.

config ASUS_LAPTOP
	tristate "Asus Laptop Extras"
	depends on ACPI
	depends on !ACPI_ASUS
	select LEDS_CLASS
	select NEW_LEDS
	select BACKLIGHT_CLASS_DEVICE
	depends on INPUT
	depends on RFKILL || RFKILL = n
	select INPUT_SPARSEKMAP
	---help---
	  This is the new Linux driver for Asus laptops. It may also support some
	  MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate
	  standard ACPI events and input events. It also adds
	  support for video output switching, LCD backlight control, Bluetooth and
	  Wlan control, and most importantly, allows you to blink those fancy LEDs.

	  For more information and a userspace daemon for handling the extra
	  buttons see <http://acpi4asus.sf.net>.

	  If you have an ACPI-compatible ASUS laptop, say Y or M here.

config DELL_LAPTOP
	tristate "Dell Laptop Extras (EXPERIMENTAL)"
	depends on X86
	depends on DCDBAS
	depends on EXPERIMENTAL
	depends on BACKLIGHT_CLASS_DEVICE
	depends on RFKILL || RFKILL = n
	depends on POWER_SUPPLY
	depends on SERIO_I8042
	default n
	---help---
	This driver adds support for rfkill and backlight control to Dell
	laptops.

config DELL_WMI
	tristate "Dell WMI extras"
	depends on ACPI_WMI
	depends on INPUT
	select INPUT_SPARSEKMAP
	---help---
	  Say Y here if you want to support WMI-based hotkeys on Dell laptops.

	  To compile this driver as a module, choose M here: the module will
	  be called dell-wmi.

config DELL_WMI_AIO
	tristate "WMI Hotkeys for Dell All-In-One series"
	depends on ACPI_WMI
	depends on INPUT
	select INPUT_SPARSEKMAP
	---help---
	  Say Y here if you want to support WMI-based hotkeys on Dell
	  All-In-One machines.

	  To compile this driver as a module, choose M here: the module will
	  be called dell-wmi.


config FUJITSU_LAPTOP
	tristate "Fujitsu Laptop Extras"
	depends on ACPI
	depends on INPUT
	depends on BACKLIGHT_CLASS_DEVICE
	depends on LEDS_CLASS || LEDS_CLASS=n
	---help---
	  This is a driver for laptops built by Fujitsu:

	    * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks
	    * Possibly other Fujitsu laptop models
	    * Tested with S6410 and S7020

	  It adds support for LCD brightness control and some hotkeys.

	  If you have a Fujitsu laptop, say Y or M here.

config FUJITSU_LAPTOP_DEBUG
	bool "Verbose debug mode for Fujitsu Laptop Extras"
	depends on FUJITSU_LAPTOP
	default n
	---help---
	  Enables extra debug output from the fujitsu extras driver, at the
	  expense of a slight increase in driver size.

	  If you are not sure, say N here.

config TC1100_WMI
	tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
	depends on !X86_64
	depends on EXPERIMENTAL
	depends on ACPI
	depends on ACPI_WMI
	---help---
	  This is a driver for the WMI extensions (wireless and bluetooth power
	  control) of the HP Compaq TC1100 tablet.

config HP_ACCEL
	tristate "HP laptop accelerometer"
	depends on INPUT && ACPI
	select SENSORS_LIS3LV02D
	select NEW_LEDS
	select LEDS_CLASS
	help
	  This driver provides support for the "Mobile Data Protection System 3D"
	  or "3D DriveGuard" feature of HP laptops. On such systems the driver
	  should load automatically (via ACPI alias).

	  Support for a led indicating disk protection will be provided as
	  hp::hddprotect. For more information on the feature, refer to
	  Documentation/hwmon/lis3lv02d.

	  To compile this driver as a module, choose M here: the module will
	  be called hp_accel.

config HP_WMI
	tristate "HP WMI extras"
	depends on ACPI_WMI
	depends on INPUT
	depends on RFKILL || RFKILL = n
	select INPUT_SPARSEKMAP
	help
	 Say Y here if you want to support WMI-based hotkeys on HP laptops and
	 to read data from WMI such as docking or ambient light sensor state.

	 To compile this driver as a module, choose M here: the module will
	 be called hp-wmi.

config MSI_LAPTOP
	tristate "MSI Laptop Extras"
	depends on ACPI
	depends on BACKLIGHT_CLASS_DEVICE
	depends on RFKILL
	depends on SERIO_I8042
	---help---
	  This is a driver for laptops built by MSI (MICRO-STAR
	  INTERNATIONAL):

	  MSI MegaBook S270 (MS-1013)
	  Cytron/TCM/Medion/Tchibo MD96100/SAM2000

	  It adds support for Bluetooth, WLAN and LCD brightness control.

	  More information about this driver is available at
	  <http://0pointer.de/lennart/tchibo.html>.

	  If you have an MSI S270 laptop, say Y or M here.

config PANASONIC_LAPTOP
	tristate "Panasonic Laptop Extras"
	depends on INPUT && ACPI
	depends on BACKLIGHT_CLASS_DEVICE
	select INPUT_SPARSEKMAP
	---help---
	  This driver adds support for access to backlight control and hotkeys
	  on Panasonic Let's Note laptops.

	  If you have a Panasonic Let's note laptop (such as the R1(N variant),
	  R2, R3, R5, T2, W2 and Y2 series), say Y.

config COMPAL_LAPTOP
	tristate "Compal Laptop Extras"
	depends on ACPI
	depends on BACKLIGHT_CLASS_DEVICE
	depends on RFKILL
	depends on HWMON
	depends on POWER_SUPPLY
	---help---
	  This is a driver for laptops built by Compal:

	  Compal FL90/IFL90
	  Compal FL91/IFL91
	  Compal FL92/JFL92
	  Compal FT00/IFT00

	  It adds support for Bluetooth, WLAN and LCD brightness control.

	  If you have an Compal FL9x/IFL9x/FT00 laptop, say Y or M here.

config SONY_LAPTOP
	tristate "Sony Laptop Extras"
	depends on ACPI
	select BACKLIGHT_CLASS_DEVICE
	depends on INPUT
	depends on RFKILL
	  ---help---
	  This mini-driver drives the SNC and SPIC devices present in the ACPI
	  BIOS of the Sony Vaio laptops.

	  It gives access to some extra laptop functionalities like Bluetooth,
	  screen brightness control, Fn keys and allows powering on/off some
	  devices.

	  Read <file:Documentation/laptops/sony-laptop.txt> for more information.

config SONYPI_COMPAT
	bool "Sonypi compatibility"
	depends on SONY_LAPTOP
	  ---help---
	  Build the sonypi driver compatibility code into the sony-laptop driver.

config IDEAPAD_LAPTOP
	tristate "Lenovo IdeaPad Laptop Extras"
	depends on ACPI
	depends on RFKILL && INPUT
	select INPUT_SPARSEKMAP
	help
	  This is a driver for the rfkill switches on Lenovo IdeaPad netbooks.

config THINKPAD_ACPI
	tristate "ThinkPad ACPI Laptop Extras"
	depends on ACPI
	depends on INPUT
	depends on RFKILL || RFKILL = n
	select BACKLIGHT_LCD_SUPPORT
	select BACKLIGHT_CLASS_DEVICE
	select HWMON
	select NVRAM
	select NEW_LEDS
	select LEDS_CLASS
	---help---
	  This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
	  support for Fn-Fx key combinations, Bluetooth control, video
	  output switching, ThinkLight control, UltraBay eject and more.
	  For more information about this driver see
	  <file:Documentation/laptops/thinkpad-acpi.txt> and
	  <http://ibm-acpi.sf.net/> .

	  This driver was formerly known as ibm-acpi.

	  Extra functionality will be available if the rfkill (CONFIG_RFKILL)
	  and/or ALSA (CONFIG_SND) subsystems are available in the kernel.
	  Note that if you want ThinkPad-ACPI to be built-in instead of
	  modular, ALSA and rfkill will also have to be built-in.

	  If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.

config THINKPAD_ACPI_ALSA_SUPPORT
	bool "Console audio control ALSA interface"
	depends on THINKPAD_ACPI
	depends on SND
	depends on SND = y || THINKPAD_ACPI = SND
	default y
	---help---
	  Enables monitoring of the built-in console audio output control
	  (headphone and speakers), which is operated by the mute and (in
	  some ThinkPad models) volume hotkeys.

	  If this option is enabled, ThinkPad-ACPI will export an ALSA card
	  with a single read-only mixer control, which should be used for
	  on-screen-display feedback purposes by the Desktop Environment.

	  Optionally, the driver will also allow software control (the
	  ALSA mixer will be made read-write).  Please refer to the driver
	  documentation for details.

	  All IBM models have both volume and mute control.  Newer Lenovo
	  models only have mute control (the volume hotkeys are just normal
	  keys and volume control is done through the main HDA mixer).

config THINKPAD_ACPI_DEBUGFACILITIES
	bool "Maintainer debug facilities"
	depends on THINKPAD_ACPI
	default n
	---help---
	  Enables extra stuff in the thinkpad-acpi which is completely useless
	  for normal use.  Read the driver source to find out what it does.

	  Say N here, unless you were told by a kernel maintainer to do
	  otherwise.

config THINKPAD_ACPI_DEBUG
	bool "Verbose debug mode"
	depends on THINKPAD_ACPI
	default n
	---help---
	  Enables extra debugging information, at the expense of a slightly
	  increase in driver size.

	  If you are not sure, say N here.

config THINKPAD_ACPI_UNSAFE_LEDS
	bool "Allow control of important LEDs (unsafe)"
	depends on THINKPAD_ACPI
	default n
	---help---
	  Overriding LED state on ThinkPads can mask important
	  firmware alerts (like critical battery condition), or misled
	  the user into damaging the hardware (undocking or ejecting
	  the bay while buses are still active), etc.

	  LED control on the ThinkPad is write-only (with very few
	  exceptions on very ancient models), which makes it
	  impossible to know beforehand if important information will
	  be lost when one changes LED state.

	  Users that know what they are doing can enable this option
	  and the driver will allow control of every LED, including
	  the ones on the dock stations.

	  Never enable this option on a distribution kernel.

	  Say N here, unless you are building a kernel for your own
	  use, and need to control the important firmware LEDs.

config THINKPAD_ACPI_VIDEO
	bool "Video output control support"
	depends on THINKPAD_ACPI
	default y
	---help---
	  Allows the thinkpad_acpi driver to provide an interface to control
	  the various video output ports.

	  This feature often won't work well, depending on ThinkPad model,
	  display state, video output devices in use, whether there is a X
	  server running, phase of the moon, and the current mood of
	  Schroedinger's cat.  If you can use X.org's RandR to control
	  your ThinkPad's video output ports instead of this feature,
	  don't think twice: do it and say N here to save memory and avoid
	  bad interactions with X.org.

	  NOTE: access to this feature is limited to processes with the
	  CAP_SYS_ADMIN capability, to avoid local DoS issues in platforms
	  where it interacts badly with X.org.

	  If you are not sure, say Y here but do try to check if you could
	  be using X.org RandR instead.

config THINKPAD_ACPI_HOTKEY_POLL
	bool "Support NVRAM polling for hot keys"
	depends on THINKPAD_ACPI
	default y
	---help---
	  Some thinkpad models benefit from NVRAM polling to detect a few of
	  the hot key press events.  If you know your ThinkPad model does not
	  need to do NVRAM polling to support any of the hot keys you use,
	  unselecting this option will save about 1kB of memory.

	  ThinkPads T40 and newer, R52 and newer, and X31 and newer are
	  unlikely to need NVRAM polling in their latest BIOS versions.

	  NVRAM polling can detect at most the following keys: ThinkPad/Access
	  IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute,
	  Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12).

	  If you are not sure, say Y here.  The driver enables polling only if
	  it is strictly necessary to do so.

config SENSORS_HDAPS
	tristate "Thinkpad Hard Drive Active Protection System (hdaps)"
	depends on INPUT && X86
	select INPUT_POLLDEV
	default n
	help
	  This driver provides support for the IBM Hard Drive Active Protection
	  System (hdaps), which provides an accelerometer and other misc. data.
	  ThinkPads starting with the R50, T41, and X40 are supported.  The
	  accelerometer data is readable via sysfs.

	  This driver also provides an absolute input class device, allowing
	  the laptop to act as a pinball machine-esque joystick.

	  If your ThinkPad is not recognized by the driver, please update to latest
	  BIOS. This is especially the case for some R52 ThinkPads.

	  Say Y here if you have an applicable laptop and want to experience
	  the awesome power of hdaps.

config INTEL_MENLOW
	tristate "Thermal Management driver for Intel menlow platform"
	depends on ACPI_THERMAL
	select THERMAL
	---help---
	  ACPI thermal management enhancement driver on
	  Intel Menlow platform.

	  If unsure, say N.

config EEEPC_LAPTOP
	tristate "Eee PC Hotkey Driver (EXPERIMENTAL)"
	depends on ACPI
	depends on INPUT
	depends on EXPERIMENTAL
	depends on RFKILL || RFKILL = n
	depends on HOTPLUG_PCI
	select BACKLIGHT_CLASS_DEVICE
	select HWMON
	select LEDS_CLASS
	select NEW_LEDS
	select INPUT_SPARSEKMAP
	---help---
	  This driver supports the Fn-Fx keys on Eee PC laptops.

	  It  also gives access to some extra laptop functionalities like
	  Bluetooth, backlight and allows powering on/off some other
	  devices.

	  If you have an Eee PC laptop, say Y or M here. If this driver
	  doesn't work on your Eee PC, try eeepc-wmi instead.

config ASUS_WMI
	tristate "ASUS WMI Driver (EXPERIMENTAL)"
	depends on ACPI_WMI
	depends on INPUT
	depends on HWMON
	depends on EXPERIMENTAL
	depends on BACKLIGHT_CLASS_DEVICE
	depends on RFKILL || RFKILL = n
	depends on HOTPLUG_PCI
	select INPUT_SPARSEKMAP
	select LEDS_CLASS
	select NEW_LEDS
	---help---
	  Say Y here if you have a WMI aware Asus laptop (like Eee PCs or new
	  Asus Notebooks).

	  To compile this driver as a module, choose M here: the module will
	  be called asus-wmi.

config ASUS_NB_WMI
	tristate "Asus Notebook WMI Driver (EXPERIMENTAL)"
	depends on ASUS_WMI
	---help---
	  This is a driver for newer Asus notebooks. It adds extra features
	  like wireless radio and bluetooth control, leds, hotkeys, backlight...

	  For more informations, see
	  <file:Documentation/ABI/testing/sysfs-platform-asus-wmi>

	  If you have an ACPI-WMI compatible Asus Notebook, say Y or M
	  here.

config EEEPC_WMI
	tristate "Eee PC WMI Driver (EXPERIMENTAL)"
	depends on ASUS_WMI
	---help---
	  This is a driver for newer Eee PC laptops. It adds extra features
	  like wireless radio and bluetooth control, leds, hotkeys, backlight...

	  For more informations, see
	  <file:Documentation/ABI/testing/sysfs-platform-asus-wmi>

	  If you have an ACPI-WMI compatible Eee PC laptop (>= 1000), say Y or M
	  here.

config ACPI_WMI
	tristate "WMI"
	depends on ACPI
	help
	  This driver adds support for the ACPI-WMI (Windows Management
	  Instrumentation) mapper device (PNP0C14) found on some systems.

	  ACPI-WMI is a proprietary extension to ACPI to expose parts of the
	  ACPI firmware to userspace - this is done through various vendor
	  defined methods and data blocks in a PNP0C14 device, which are then
	  made available for userspace to call.

	  The implementation of this in Linux currently only exposes this to
	  other kernel space drivers.

	  This driver is a required dependency to build the firmware specific
	  drivers needed on many machines, including Acer and HP laptops.

	  It is safe to enable this driver even if your DSDT doesn't define
	  any ACPI-WMI devices.

config MSI_WMI
	tristate "MSI WMI extras"
	depends on ACPI_WMI
	depends on INPUT
	depends on BACKLIGHT_CLASS_DEVICE
	select INPUT_SPARSEKMAP
	help
	 Say Y here if you want to support WMI-based hotkeys on MSI laptops.

	 To compile this driver as a module, choose M here: the module will
	 be called msi-wmi.

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

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

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

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

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

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

config TOPSTAR_LAPTOP
	tristate "Topstar Laptop Extras"
	depends on ACPI
	depends on INPUT
	select INPUT_SPARSEKMAP
	---help---
	  This driver adds support for hotkeys found on Topstar laptops.

	  If you have a Topstar laptop, say Y or M here.

config ACPI_TOSHIBA
	tristate "Toshiba Laptop Extras"
	depends on ACPI
	select LEDS_CLASS
	select NEW_LEDS
	depends on BACKLIGHT_CLASS_DEVICE
	depends on INPUT
	depends on RFKILL || RFKILL = n
	select INPUT_POLLDEV
	select INPUT_SPARSEKMAP
	---help---
	  This driver adds support for access to certain system settings
	  on "legacy free" Toshiba laptops.  These laptops can be recognized by
	  their lack of a BIOS setup menu and APM support.

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

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

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

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

config TOSHIBA_BT_RFKILL
	tristate "Toshiba Bluetooth RFKill switch support"
	depends on ACPI
	---help---
	  This driver adds support for Bluetooth events for the RFKill
	  switch on modern Toshiba laptops with full ACPI support and
	  an RFKill switch.

	  This driver handles RFKill events for the TOS6205 Bluetooth,
	  and re-enables it when the switch is set back to the 'on'
	  position.

	  If you have a modern Toshiba laptop with a Bluetooth and an
	  RFKill switch (such as the Portege R500), say Y.

config ACPI_CMPC
	tristate "CMPC Laptop Extras"
	depends on X86 && ACPI
	depends on RFKILL || RFKILL=n
	select INPUT
	select BACKLIGHT_CLASS_DEVICE
	default n
	help
	  Support for Intel Classmate PC ACPI devices, including some
	  keys as input device, backlight device, tablet and accelerometer
	  devices.

config INTEL_SCU_IPC
	bool "Intel SCU IPC Support"
	depends on X86_MRST
	default y
	---help---
	  IPC is used to bridge the communications between kernel and SCU on
	  some embedded Intel x86 platforms. This is not needed for PC-type
	  machines.

config INTEL_SCU_IPC_UTIL
	tristate "Intel SCU IPC utility driver"
	depends on INTEL_SCU_IPC
	default y
	---help---
	  The IPC Util driver provides an interface with the SCU enabling
	  low level access for debug work and updating the firmware. Say
	  N unless you will be doing this on an Intel MID platform.

config GPIO_INTEL_PMIC
	bool "Intel PMIC GPIO support"
	depends on INTEL_SCU_IPC && GPIOLIB
	---help---
	  Say Y here to support GPIO via the SCU IPC interface
	  on Intel MID platforms.

config INTEL_MID_POWER_BUTTON
	tristate "power button driver for Intel MID platforms"
	depends on INTEL_SCU_IPC && INPUT
	help
	  This driver handles the power button on the Intel MID platforms.

	  If unsure, say N.

config INTEL_MFLD_THERMAL
       tristate "Thermal driver for Intel Medfield platform"
       depends on INTEL_SCU_IPC && THERMAL
       help
         Say Y here to enable thermal driver support for the  Intel Medfield
         platform.

config RAR_REGISTER
	bool "Restricted Access Region Register Driver"
	depends on PCI && X86_MRST
	default n
	---help---
	  This driver allows other kernel drivers access to the
	  contents of the restricted access region control registers.

	  The restricted access region control registers
	  (rar_registers) are used to pass address and
	  locking information on restricted access regions
	  to other drivers that use restricted access regions.

	  The restricted access regions are regions of memory
	  on the Intel MID Platform that are not accessible to
	  the x86 processor, but are accessible to dedicated
	  processors on board peripheral devices.

	  The purpose of the restricted access regions is to
	  protect sensitive data from compromise by unauthorized
	  programs running on the x86 processor.

config INTEL_IPS
	tristate "Intel Intelligent Power Sharing"
	depends on ACPI
	---help---
	  Intel Calpella platforms support dynamic power sharing between the
	  CPU and GPU, maximizing performance in a given TDP.  This driver,
	  along with the CPU frequency and i915 drivers, provides that
	  functionality.  If in doubt, say Y here; it will only load on
	  supported platforms.

config IBM_RTL
	tristate "Device driver to enable PRTL support"
	depends on X86 && PCI
	---help---
	 Enable support for IBM Premium Real Time Mode (PRTM).
	 This module will allow you the enter and exit PRTM in the BIOS via
	 sysfs on platforms that support this feature.  System in PRTM will
	 not receive CPU-generated SMIs for recoverable errors.  Use of this
	 feature without proper support may void your hardware warranty.

	 If the proper BIOS support is found the driver will load and create
	 /sys/devices/system/ibm_rtl/.  The "state" variable will indicate
	 whether or not the BIOS is in PRTM.
	 state = 0 (BIOS SMIs on)
	 state = 1 (BIOS SMIs off)

config XO1_RFKILL
	tristate "OLPC XO-1 software RF kill switch"
	depends on OLPC
	depends on RFKILL
	---help---
	  Support for enabling/disabling the WLAN interface on the OLPC XO-1
	  laptop.

config XO15_EBOOK
	tristate "OLPC XO-1.5 ebook switch"
	depends on ACPI && INPUT
	---help---
	  Support for the ebook switch on the OLPC XO-1.5 laptop.

	  This switch is triggered as the screen is rotated and folded down to
	  convert the device into ebook form.

endif # X86_PLATFORM_DEVICES