call_usermodehelper(): increase reliability

[mirror_ubuntu-bionic-kernel.git] / drivers / misc / Kconfig

#
# Misc strange devices
#

menuconfig MISC_DEVICES
	bool "Misc devices"
	default y
	---help---
	  Say Y here to get to see options for device drivers from various
	  different categories. This option alone does not add any kernel code.

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

if MISC_DEVICES

config ATMEL_PWM
	tristate "Atmel AT32/AT91 PWM support"
	depends on AVR32 || ARCH_AT91
	help
	  This option enables device driver support for the PWM channels
	  on certain Atmel prcoessors.  Pulse Width Modulation is used for
	  purposes including software controlled power-efficent backlights
	  on LCD displays, motor control, and waveform generation.

config ATMEL_TCLIB
	bool "Atmel AT32/AT91 Timer/Counter Library"
	depends on (AVR32 || ARCH_AT91)
	help
	  Select this if you want a library to allocate the Timer/Counter
	  blocks found on many Atmel processors.  This facilitates using
	  these blocks by different drivers despite processor differences.

config ATMEL_TCB_CLKSRC
	bool "TC Block Clocksource"
	depends on ATMEL_TCLIB && GENERIC_TIME
	default y
	help
	  Select this to get a high precision clocksource based on a
	  TC block with a 5+ MHz base clock rate.  Two timer channels
	  are combined to make a single 32-bit timer.

	  When GENERIC_CLOCKEVENTS is defined, the third timer channel
	  may be used as a clock event device supporting oneshot mode
	  (delays of up to two seconds) based on the 32 KiHz clock.

config ATMEL_TCB_CLKSRC_BLOCK
	int
	depends on ATMEL_TCB_CLKSRC
	prompt "TC Block" if ARCH_AT91RM9200 || ARCH_AT91SAM9260 || CPU_AT32AP700X
	default 0
	range 0 1
	help
	  Some chips provide more than one TC block, so you have the
	  choice of which one to use for the clock framework.  The other
	  TC can be used for other purposes, such as PWM generation and
	  interval timing.

config IBM_ASM
	tristate "Device driver for IBM RSA service processor"
	depends on X86 && PCI && INPUT && EXPERIMENTAL
	---help---
	  This option enables device driver support for in-band access to the
	  IBM RSA (Condor) service processor in eServer xSeries systems.
	  The ibmasm device driver allows user space application to access
	  ASM (Advanced Systems Management) functions on the service
	  processor. The driver is meant to be used in conjunction with
	  a user space API.
	  The ibmasm driver also enables the OS to use the UART on the
	  service processor board as a regular serial port. To make use of
	  this feature serial driver support (CONFIG_SERIAL_8250) must be
	  enabled.

	  WARNING: This software may not be supported or function
	  correctly on your IBM server. Please consult the IBM ServerProven
	  website <http://www.pc.ibm.com/ww/eserver/xseries/serverproven> for
	  information on the specific driver level and support statement
	  for your IBM server.

config PHANTOM
	tristate "Sensable PHANToM"
	depends on PCI
	help
	  Say Y here if you want to build a driver for Sensable PHANToM device.

	  If you choose to build module, its name will be phantom. If unsure,
	  say N here.

config EEPROM_93CX6
	tristate "EEPROM 93CX6 support"
	---help---
	  This is a driver for the EEPROM chipsets 93c46 and 93c66.
	  The driver supports both read as well as write commands.

	  If unsure, say N.

config SGI_IOC4
	tristate "SGI IOC4 Base IO support"
	depends on PCI
	---help---
	  This option enables basic support for the IOC4 chip on certain
	  SGI IO controller cards (IO9, IO10, and PCI-RT).  This option
	  does not enable any specific functions on such a card, but provides
	  necessary infrastructure for other drivers to utilize.

	  If you have an SGI Altix with an IOC4-based card say Y.
	  Otherwise say N.

config TIFM_CORE
	tristate "TI Flash Media interface support (EXPERIMENTAL)"
	depends on EXPERIMENTAL && PCI
	help
	  If you want support for Texas Instruments(R) Flash Media adapters
	  you should select this option and then also choose an appropriate
	  host adapter, such as 'TI Flash Media PCI74xx/PCI76xx host adapter
	  support', if you have a TI PCI74xx compatible card reader, for
	  example.
	  You will also have to select some flash card format drivers. MMC/SD
	  cards are supported via 'MMC/SD Card support: TI Flash Media MMC/SD
	  Interface support (MMC_TIFM_SD)'.

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

config TIFM_7XX1
	tristate "TI Flash Media PCI74xx/PCI76xx host adapter support (EXPERIMENTAL)"
	depends on PCI && TIFM_CORE && EXPERIMENTAL
	default TIFM_CORE
	help
	  This option enables support for Texas Instruments(R) PCI74xx and
	  PCI76xx families of Flash Media adapters, found in many laptops.
	  To make actual use of the device, you will have to select some
	  flash card format drivers, as outlined in the TIFM_CORE Help.

          To compile this driver as a module, choose M here: the module will
	  be called tifm_7xx1.

config ACER_WMI
        tristate "Acer WMI Laptop Extras (EXPERIMENTAL)"
	depends on X86
	depends on EXPERIMENTAL
	depends on ACPI
	depends on LEDS_CLASS
	depends on NEW_LEDS
	depends on BACKLIGHT_CLASS_DEVICE
	depends on SERIO_I8042
	select ACPI_WMI
	---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 ASUS_LAPTOP
        tristate "Asus Laptop Extras (EXPERIMENTAL)"
        depends on X86
        depends on ACPI
	depends on EXPERIMENTAL && !ACPI_ASUS
	depends on LEDS_CLASS
	depends on NEW_LEDS
	depends on BACKLIGHT_CLASS_DEVICE
        ---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 that go through /proc/acpi/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 FUJITSU_LAPTOP
        tristate "Fujitsu Laptop Extras"
        depends on X86
        depends on ACPI
	depends on INPUT
        depends on BACKLIGHT_CLASS_DEVICE
        ---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 && !X86_64
	depends on EXPERIMENTAL
	depends on ACPI
	select ACPI_WMI
	---help---
	  This is a driver for the WMI extensions (wireless and bluetooth power
	  control) of the HP Compaq TC1100 tablet.

config MSI_LAPTOP
        tristate "MSI Laptop Extras"
        depends on X86
        depends on ACPI_EC
        depends on BACKLIGHT_CLASS_DEVICE
        ---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 COMPAL_LAPTOP
	tristate "Compal Laptop Extras"
	depends on X86
	depends on ACPI_EC
	depends on BACKLIGHT_CLASS_DEVICE
	---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 X86 && ACPI
	select BACKLIGHT_CLASS_DEVICE
	depends on INPUT
	  ---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 THINKPAD_ACPI
	tristate "ThinkPad ACPI Laptop Extras"
	depends on X86 && ACPI
	select BACKLIGHT_LCD_SUPPORT
	select BACKLIGHT_CLASS_DEVICE
	select HWMON
	select NVRAM
	select INPUT
	select NEW_LEDS
	select LEDS_CLASS
	select NET
	select RFKILL
	---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.

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

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_DOCK
	bool "Legacy Docking Station Support"
	depends on THINKPAD_ACPI
	depends on ACPI_DOCK=n
	default n
	---help---
	  Allows the thinkpad_acpi driver to handle docking station events.
	  This support was made obsolete by the generic ACPI docking station
	  support (CONFIG_ACPI_DOCK).  It will allow locking and removing the
	  laptop from the docking station, but will not properly connect PCI
	  devices.

	  If you are not sure, say N here.

config THINKPAD_ACPI_BAY
	bool "Legacy Removable Bay Support"
	depends on THINKPAD_ACPI
	default y
	---help---
	  Allows the thinkpad_acpi driver to handle removable bays.  It will
	  electrically disable the device in the bay, and also generate
	  notifications when the bay lever is ejected or inserted.

	  If you are not sure, say Y here.

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 some memory.

	  If you are not sure, say Y here.

config THINKPAD_ACPI_HOTKEY_POLL
	bool "Suport 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 ATMEL_SSC
	tristate "Device driver for Atmel SSC peripheral"
	depends on AVR32 || ARCH_AT91
	---help---
	  This option enables device driver support for Atmel Syncronized
	  Serial Communication peripheral (SSC).

	  The SSC peripheral supports a wide variety of serial frame based
	  communications, i.e. I2S, SPI, etc.

	  If unsure, say N.

config INTEL_MENLOW
	tristate "Thermal Management driver for Intel menlow platform"
	depends on ACPI_THERMAL
	select THERMAL
	depends on X86
	---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 X86
	depends on ACPI
	depends on BACKLIGHT_CLASS_DEVICE
	depends on HWMON
	depends on EXPERIMENTAL
	---help---
	  This driver supports the Fn-Fx keys on Eee PC laptops.
	  It also adds the ability to switch camera/wlan on/off.

	  If you have an Eee PC laptop, say Y or M here.

config ENCLOSURE_SERVICES
	tristate "Enclosure Services"
	default n
	help
	  Provides support for intelligent enclosures (bays which
	  contain storage devices).  You also need either a host
	  driver (SCSI/ATA) which supports enclosures
	  or a SCSI enclosure device (SES) to use these services.

config SGI_XP
	tristate "Support communication between SGI SSIs"
	depends on IA64_GENERIC || IA64_SGI_SN2
	select IA64_UNCACHED_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
	select GENERIC_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
	---help---
	  An SGI machine can be divided into multiple Single System
	  Images which act independently of each other and have
	  hardware based memory protection from the others.  Enabling
	  this feature will allow for direct communication between SSIs
	  based on a network adapter and DMA messaging.

config HP_ILO
	tristate "Channel interface driver for HP iLO/iLO2 processor"
	default n
	help
	  The channel interface driver allows applications to communicate
	  with iLO/iLO2 management processors present on HP ProLiant
	  servers.  Upon loading, the driver creates /dev/hpilo/dXccbN files,
	  which can be used to gather data from the management processor,
	  via read and write system calls.

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

endif # MISC_DEVICES