kconfig

来自「Linux Kernel 2.6.9 for OMAP1710」· 代码 · 共 1,001 行 · 第 1/3 页

	  This driver provides kernel-side support for the Random Number
	  Generator hardware found on Intel i8xx-based motherboards,
	  AMD 76x-based motherboards, and Via Nehemiah CPUs.

	  Provides a character driver, used to read() entropy data.

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

	  If unsure, say N.

config NVRAM
	tristate "/dev/nvram support"
	depends on ATARI || X86 || X86_64 || ARM || GENERIC_NVRAM
	---help---
	  If you say Y here and create a character special file /dev/nvram
	  with major number 10 and minor number 144 using mknod ("man mknod"),
	  you get read and write access to the extra bytes of non-volatile
	  memory in the real time clock (RTC), which is contained in every PC
	  and most Ataris.  The actual number of bytes varies, depending on the
	  nvram in the system, but is usually 114 (128-14 for the RTC).

	  This memory is conventionally called "CMOS RAM" on PCs and "NVRAM"
	  on Ataris. /dev/nvram may be used to view settings there, or to
	  change them (with some utility). It could also be used to frequently
	  save a few bits of very important data that may not be lost over
	  power-off and for which writing to disk is too insecure. Note
	  however that most NVRAM space in a PC belongs to the BIOS and you
	  should NEVER idly tamper with it. See Ralf Brown's interrupt list
	  for a guide to the use of CMOS bytes by your BIOS.

	  On Atari machines, /dev/nvram is always configured and does not need
	  to be selected.

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

config RTC
	tristate "Enhanced Real Time Clock Support"
	depends on !PPC32 && !PARISC && !IA64 && !M68K
	---help---
	  If you say Y here and create a character special file /dev/rtc with
	  major number 10 and minor number 135 using mknod ("man mknod"), you
	  will get access to the real time clock (or hardware clock) built
	  into your computer.

	  Every PC has such a clock built in. It can be used to generate
	  signals from as low as 1Hz up to 8192Hz, and can also be used
	  as a 24 hour alarm. It reports status information via the file
	  /proc/driver/rtc and its behaviour is set by various ioctls on
	  /dev/rtc.

	  If you run Linux on a multiprocessor machine and said Y to
	  "Symmetric Multi Processing" above, you should say Y here to read
	  and set the RTC in an SMP compatible fashion.

	  If you think you have a use for such a device (such as periodic data
	  sampling), then say Y here, and read <file:Documentation/rtc.txt>
	  for details.

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

config SGI_DS1286
	tristate "SGI DS1286 RTC support"
	depends on SGI_IP22
	help
	  If you say Y here and create a character special file /dev/rtc with
	  major number 10 and minor number 135 using mknod ("man mknod"), you
	  will get access to the real time clock built into your computer.
	  Every SGI has such a clock built in. It reports status information
	  via the file /proc/rtc and its behaviour is set by various ioctls on
	  /dev/rtc.

config SGI_IP27_RTC
	bool "SGI M48T35 RTC support"
	depends on SGI_IP27
	help
	  If you say Y here and create a character special file /dev/rtc with
	  major number 10 and minor number 135 using mknod ("man mknod"), you
	  will get access to the real time clock built into your computer.
	  Every SGI has such a clock built in. It reports status information
	  via the file /proc/rtc and its behaviour is set by various ioctls on
	  /dev/rtc.

config GEN_RTC
	tristate "Generic /dev/rtc emulation"
	depends on RTC!=y && !IA64 && !ARM
	---help---
	  If you say Y here and create a character special file /dev/rtc with
	  major number 10 and minor number 135 using mknod ("man mknod"), you
	  will get access to the real time clock (or hardware clock) built
	  into your computer.

	  It reports status information via the file /proc/driver/rtc and its
	  behaviour is set by various ioctls on /dev/rtc. If you enable the
	  "extended RTC operation" below it will also provide an emulation
	  for RTC_UIE which is required by some programs and may improve
	  precision in some cases.

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

config GEN_RTC_X
	bool "Extended RTC operation"
	depends on GEN_RTC
	help
	  Provides an emulation for RTC_UIE which is required by some programs
	  and may improve precision of the generic RTC support in some cases.

config EFI_RTC
	bool "EFI Real Time Clock Services"
	depends on IA64

config OMAP_RTC
	bool "TI OMAP Real Time Clock"
	depends on ARCH_OMAP1510 || ARCH_OMAP16XX || ARCH_OMAP730
	help
	  Support for TI OMAP RTC

config COBALT_LCD
	bool "Support for Cobalt LCD"
	depends on MIPS_COBALT
	help
	  This option enables support for the LCD display and buttons found
	  on Cobalt systems through a misc device.

config DTLK
	tristate "Double Talk PC internal speech card support"
	help
	  This driver is for the DoubleTalk PC, a speech synthesizer
	  manufactured by RC Systems (<http://www.rcsys.com/>).  It is also
	  called the `internal DoubleTalk'.

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

config R3964
	tristate "Siemens R3964 line discipline"
	---help---
	  This driver allows synchronous communication with devices using the
	  Siemens R3964 packet protocol. Unless you are dealing with special
	  hardware like PLCs, you are unlikely to need this.

	  To compile this driver as a module, choose M here: the
	  module will be called n_r3964.

	  If unsure, say N.

config APPLICOM
	tristate "Applicom intelligent fieldbus card support"
	depends on PCI
	---help---
	  This driver provides the kernel-side support for the intelligent
	  fieldbus cards made by Applicom International. More information
	  about these cards can be found on the WWW at the address
	  <http://www.applicom-int.com/>, or by email from David Woodhouse
	  <[e-mail]>.

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

	  If unsure, say N.

config SONYPI
	tristate "Sony Vaio Programmable I/O Control Device support (EXPERIMENTAL)"
	depends on EXPERIMENTAL && X86 && PCI && !64BIT
	---help---
	  This driver enables access to the Sony Programmable I/O Control
	  Device which can be found in many (all ?) Sony Vaio laptops.

	  If you have one of those laptops, read
	  <file:Documentation/sonypi.txt>, and say Y or M here.

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


menu "Ftape, the floppy tape device driver"

config FTAPE
	tristate "Ftape (QIC-80/Travan) support"
	depends on BROKEN_ON_SMP && (ALPHA || X86)
	---help---
	  If you have a tape drive that is connected to your floppy
	  controller, say Y here.

	  Some tape drives (like the Seagate "Tape Store 3200" or the Iomega
	  "Ditto 3200" or the Exabyte "Eagle TR-3") come with a "high speed"
	  controller of their own. These drives (and their companion
	  controllers) are also supported if you say Y here.

	  If you have a special controller (such as the CMS FC-10, FC-20,
	  Mountain Mach-II, or any controller that is based on the Intel 82078
	  FDC like the high speed controllers by Seagate and Exabyte and
	  Iomega's "Ditto Dash") you must configure it by selecting the
	  appropriate entries from the "Floppy tape controllers" sub-menu
	  below and possibly modify the default values for the IRQ and DMA
	  channel and the IO base in ftape's configuration menu.

	  If you want to use your floppy tape drive on a PCI-bus based system,
	  please read the file <file:drivers/char/ftape/README.PCI>.

	  The ftape kernel driver is also available as a runtime loadable
	  module. To compile this driver as a module, choose M here: the
	  module will be called ftape.

	  Note that the Ftape-HOWTO is out of date (sorry) and documents the
	  older version 2.08 of this software but still contains useful
	  information.  There is a web page with more recent documentation at
	  <http://www.instmath.rwth-aachen.de/~heine/ftape/>.  This page
	  always contains the latest release of the ftape driver and useful
	  information (backup software, ftape related patches and
	  documentation, FAQ).  Note that the file system interface has
	  changed quite a bit compared to previous versions of ftape.  Please
	  read <file:Documentation/ftape.txt>.

source "drivers/char/ftape/Kconfig"

endmenu

source "drivers/char/agp/Kconfig"

source "drivers/char/drm/Kconfig"

source "drivers/char/pcmcia/Kconfig"

config MWAVE
	tristate "ACP Modem (Mwave) support"
	depends on X86
	select SERIAL_8250
	---help---
	  The ACP modem (Mwave) for Linux is a WinModem. It is composed of a
	  kernel driver and a user level application. Together these components
	  support direct attachment to public switched telephone networks (PSTNs)
	  and support selected world wide countries.

	  This version of the ACP Modem driver supports the IBM Thinkpad 600E,
	  600, and 770 that include on board ACP modem hardware.

	  The modem also supports the standard communications port interface
	  (ttySx) and is compatible with the Hayes AT Command Set.

	  The user level application needed to use this driver can be found at
	  the IBM Linux Technology Center (LTC) web site:
	  <http://www.ibm.com/linux/ltc/>.

	  If you own one of the above IBM Thinkpads which has the Mwave chipset
	  in it, say Y.

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

config SCx200_GPIO
	tristate "NatSemi SCx200 GPIO Support"
	depends on SCx200
	help
	  Give userspace access to the GPIO pins on the National
	  Semiconductor SCx200 processors.

	  If compiled as a module, it will be called scx200_gpio.

config RAW_DRIVER
	tristate "RAW driver (/dev/raw/rawN) (OBSOLETE)"
	help
	  The raw driver permits block devices to be bound to /dev/raw/rawN. 
	  Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O. 
	  See the raw(8) manpage for more details.

          The raw driver is deprecated and may be removed from 2.7
          kernels.  Applications should simply open the device (eg /dev/hda1)
          with the O_DIRECT flag.

config HPET
	bool "HPET - High Precision Event Timer" if (X86 || IA64)
	default n
	depends on ACPI
	help
	  If you say Y here, you will have a miscdevice named "/dev/hpet/".  Each
	  open selects one of the timers supported by the HPET.  The timers are
	  non-periodioc and/or periodic.

config HPET_RTC_IRQ
	bool "HPET Control RTC IRQ" if !HPET_EMULATE_RTC
	default n
	depends on HPET
	help
	  If you say Y here, you will disable RTC_IRQ in drivers/char/rtc.c. It
	  is assumed the platform called hpet_alloc with the RTC IRQ values for
	  the HPET timers.

config HPET_MMAP
	bool "Allow mmap of HPET"
	default y
	depends on HPET
	help
	  If you say Y here, user applications will be able to mmap
	  the HPET registers.

	  In some hardware implementations, the page containing HPET
	  registers may also contain other things that shouldn't be
	  exposed to the user.  If this applies to your hardware,
	  say N here.

config MAX_RAW_DEVS
	int "Maximum number of RAW devices to support (1-8192)"
	depends on RAW_DRIVER
	default "256"
	help
	  The maximum number of RAW devices that are supported.
	  Default is 256. Increase this number in case you need lots of
	  raw devices.

config HANGCHECK_TIMER
	tristate "Hangcheck timer"
	depends on X86_64 || X86
	help
	  The hangcheck-timer module detects when the system has gone
	  out to lunch past a certain margin.  It can reboot the system
	  or merely print a warning.

config MMTIMER
	tristate "MMTIMER Memory mapped RTC for SGI Altix"
	depends on IA64_GENERIC || IA64_SGI_SN2
	default y
	help
	  The mmtimer device allows direct userspace access to the
	  Altix system timer.


endmenu